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All Because Of A Nap

TW: Incest

It wasn't something I planned. I'd swear that to myself later, again and again. When I look back, it wasn't as if I should have anticipated it all along. It just… happened. Okay, part of it, a large part of it, was my doing but I swear she started it. My head is still all mixed up about exactly how we got here. I guess I'll just start from the beginning:

My little sister Tzuyu was cute, hot even. Sure I've occasionally gotten excited upon seeing her scantily clad about the house, but we were truly normal siblings. Tzuyu and I fought, played, loved and hated each other the way most brothers and sisters do. She had her friends; I had mine. Sometimes we saw each other out on a Friday or Saturday night, but other than to try and hit on her friends, I pretty much stayed out of the way. It wasn't one sided either, as I had to deal with friends hitting on my little sis too.

Admittedly, she was the best looking of her friends, many of which I tried and occasionally succeeded in taking home with me. So, I just sucked it up and accepted that people were going to gawk at her wherever she went, even if she was my little sister and they were my own damned buddies.

Tzuyu was eighteen - pretty young for already having her first semester under her belt in college. She was on the volleyball team, had a steady boyfriend, and seemed to be popular in her circles. She was a pretty confident and independent girl, but I still looked out for her whenever she needed it. She had a fake ID too, and that combined with her 110 lbs. or so and inexperience with alcohol established the watchful eye I kept on her.

Like I said, she was cute. She had warm brown hair that she wore in all kinds of ways; I thought it looked best in a ponytail. Her body was athletic, but she had amazing, shapely breasts that looked like a fun handful to play with. She was almost 5'-7," and toned every inch of it - most volleyball girls were. It wasn't like I'd been fixated on her young body, but the uniforms volleyball players wore, with the tight little shorts and tops… I couldn't help but notice how enticing she'd become. Her adorable smile and deep blue eyes were just the cherry on top; I admired them often growing up.

Sure, being raised under the same roof we'd caught each other changing or coming out of the shower once or twice. Tzuyu had definitely been the first girl whose pussy I'd seen. There was that one time when I'd accidentally walked into her room while she was bottomless and bending over to pull on that damned uniform. I learned quickly that not all of them were so small and hidden between puffy little lips the way hers was…though I wished they were.

I imagine mine were the first male parts Tzuyu had seen. I was admittedly proud to see her reaction and glad she caught me soon after waking up when my morning wood had just begun to fade. Hey, that she was my sister doesn't mean I minded her seeing me at decent size; I thought maybe she'd even tell one of her friends. Then again, who was I kidding, the last thing I was going to do is tell my buddies that Tzuyu's was as perfect and sexy as they all thought she would be when naked.

All of this might make it sound like I had the hots for my sister, but I swear I did everything a brother could to not to make her an object of my fantasies. Living with such a hottie I didn't always succeed, but I did my best. I simply hoped that I got a shot with a girl as attractive;- Tzuyu definitely set the bar high.

And then, in one fateful moment things just… unraveled.

It was a pretty standard routine for us. Every couple of weeks when Tzuyu and I got antsy, or it was a holiday like this time, we'd make the long drive home. I did most of the driving and the little princess slept when it suited her. We made good time on this trip home for the semester break but I was still beat when we got back and needed to sleep of the road's monotony.

I was minding my business, taking a nap, when I found myself lying next to my little sister in her bed. I'd simply gone in there to lie down after a long drive home, no other reason. Her bedroom was closer than mine and always colder - far better for a much needed nap. Fuck if I was going to walk twenty more steps to my door. She must have wanted the same thing and came in later after chatting with our parents downstairs.

It wasn't uncommon, but ultimately my laziness had caused a small problem. As usual whenever I wake up, I had a rock hard erection. And with a pretty, slumbering teenager asleep next to me in her bed, my mind was soon racing with thoughts of taboo and risk. I hadn't intended it, I just couldn't prohibit my mind from putting two and two together: my arousal and my hot little sister.

My eyes wandered; I needed to 'examine the situation'. The covers were pulled over her so I couldn't see what she was wearing, but she was cuddled close enough that I could feel her bare legs against mine. She must have taken her jeans off and gotten in bed with me after I'd fallen asleep. Her hair was pushed back and I could see that second piercing on top of her ear I always liked.

'Oh no,' I thought. 'Please tell me she's asleep and has no idea.' It wouldn't have worried me if Tzuyu hadn't snuggled up so close. My erection was dangerously close to my eighteen-year-old sister and I would die if I had to explain myself because she woke up. It was likely a total accident, but I didn't know what to do; any movement could stir her awake and who knew what she might think or say.

My cock betrayed me. I heard her slow breathing, I felt her warm skin, and my hardness swelled with want that hadn't even consulted my conscious brain. It nudged against her butt, poking directly into a tender cheek. I held my breath, hoping…praying that she hadn't woken up. When I thought the coast was clear I lifted my hips and slid backward as slowly as possible, doing my best not to shake the bed or call any more attention to the forbidden contact I was making with Tzuyu's ass.

I settled about half a foot backward on the bed, listening to my little sister breathe and thinking I might have avoided a very awkward situation. Just after I came to rest, I heard a loud creak from her bed. I cursed inwardly, thinking I was done for. At least I wasn't still poking into her with an erection she could easily take the wrong way.

It was then I realized I was mistaken. It was my little sister that had caused the sound as she'd rolled my direction, bringing her hand behind her to the place where I'd touched her. And she didn't take my hard cock the wrong way, she took it in her hand. Without saying a word she wrapped her fingers around it over my thin athletic shorts.

I didn't just roll her over and fuck her or something. No way, this was my little sis and it could be a total accident that she had me in her hand. She might even have been asleep.

She simply stayed still with her fingers wrapped fully around me. It seemed like she was testing me, seeing if I would be the first to pull away. I didn't move an inch, but again my hardness gave me away. It throbbed in Tzuyu's hand, telling her how good it was to feel her holding on to her brother's cock. She maneuvered her palm to my head, extending all of her fingers and then closing them down over my shaft before drawing away and stimulating my tip wonderfully.

At first I'd wanted to believe that she was sleeping. Surely my little sis had just grabbed for something in her slumber and I just happened to be in the right place. But after a moment or so, I could feel her fingers searching and stroking. She was sliding her hand up and down the length of my shaft. People don't just do that; I knew Tzuyu had to be awake and touching me purposefully.

Even through my shorts I couldn't help but growl in approval. I didn't know what had gotten into her, but Tzuyu's hand felt so good I couldn't fathom stopping her. Did she suddenly decide she wanted to fool around with me? Was it a problem with her boyfriend? What could make her act this way with seemingly no warning? All those thoughts crowded my mind, still planted firmly in her hand.

And she didn't stop there either. I laid there anxiously as Tzuyu put her hand on my abdomen, both of us knowing what she intended to do.

Her fingers halted. The pause was long enough to make we wonder if the naughty eighteen-year-old had changed her mind or realized what she was doing. I was nervous and yet craving my sister's touch again.

I had been looking at the back of her head, with hair behind her delicate ear, and I watched as she slowly turned toward me. She looked directly into my eyes. I knew there hadn't been a mistake; she knew exactly what she was doing. I knew it better when she slid her fingers under my waistband and once again brought them to my now bare member. Her eyes were locked into mine the whole time.

I couldn't believe it. I couldn't fathom what I had done to deserve my beautiful little sister's daring hand stroking me as she began to move it up and down. I tried so hard to hold her gaze but once or twice my eyes rolled in response to a strong grasp of my sister's soft palm.

Maybe I should have questioned her. Maybe I should have asked if something was wrong and she was acting out. The doubts crossed my mind for one last second when I watched my little sister do something entirely new.

Still staring into my eyes, she brought her hand out of my pants and quickly pulled my waistband down and over my bulging cock. Then, with a kind of mischievous confidence, she brought her hand to her mouth and licked a path up her palm before sinking two fingers at a time past her wet lips.

I was speechless - as I had been the entire time. I was seeing the hottest girl I knew do the sexiest thing I'd ever witnessed, awestruck as she lowered her hand back to my painfully hard staff.

Her hand slid easily over my shaft before she paid incredible attention to my sensitive tip. My hips thrust involuntarily toward her, and I finally saw Tzuyu crack a grin in pride. She rewarded me with a quickened pace, slipping her hand over my head and all the way down my shaft over and over again. Too soon I felt I was going to cum.

I reached out for her body. I simply had to feel her, to get my hands on her soft breasts or that toned midsection I'd seen too many times before. Now was my chance, the way I was spooning her gave me plenty of access to her perfect little body.

With her hand back the way it was, her chest was poised proudly for my admiration. I started with my hand on her thigh before guiding it up over the gentle curve of her hip. I was careful not to go under her shirt as I neared her ribcage, not wanting to push my luck. It was a thin cotton top, with a small spaghetti strap I could see just above the covers on her smooth, tanned shoulder.

Tzuyu purred quietly when I grasped her tit in my hand. They'd always looked so soft and squeezable and now I had proof as I cupped it carefully. Where before I hadn't even allowed the thought of feeling up my little sister beyond a quiet daydream, now that I had her, I couldn't get enough. I wanted to run my hands over every inch of her, and soon I worked my fingers under the hem of her shirt.

She didn't protest as I daringly climbed higher, feeling the bottom of her ribcage again, this time without the shirt atop it. She inhaled deeply when my fingers finally reached her breast, and I took her nipple quickly in between my thumb and forefinger. Pinching it, I heard my little sister moan. Grasping her, I felt her hips writhe beneath the covers. I pushed her shirt up swiftly and threw the covers off of us in one motion, I wanted to see her.

All this while, we hadn't said a word, and she kept stroking me below. Her head was still turned in my direction and her eyes held mine,, though occasionally we broke when pleasure got the better of us. With the blankets thrown off, I gazed down at my sister's beautiful frame. Her shirt was bunched above her breasts where I'd shoved it, and our hips had drawn closer. Now and again I could feel my tip brush against her bottoms, sending a shiver up my spine.

I continued massaging her breasts and midsection, and the look in her eyes told me she loved it. Tzuyu licked her hand a second time to wet it and once again placed it on my cock. Watching her hand descend my eyes stopped on her underwear - a wide pink band of lace wrapped around her cute hips and butt with a strip of white between her legs connecting and covering what I knew would be a tight little pussy.

The thought inspired me, I wanted to know what it would feel like if I got my fingers to Tzuyu's mound. Was she enjoying this as much as me? Would she be warm and wet like I imagined? I motioned toward my sister's panty line with the hand that had been playing with her tits, hearing her sigh regrettably that I'd left them alone.

As soon as my fingers brushed the band of pink lace around her hips, Tzuyu reached for the bottoms and pushed them down around her pert butt. As she shimmied to remove them, my head contacted dangerously close to her most forbidden place which I had yet to touch. Her willingness to take off her panties both excited and confused me, almost as much as the gentle prod to the gap between her thighs.

I was eager, I couldn't help it. I grasped her hips and thrust forward. I don't know what I was thinking. The haste at which we'd stepped into this exciting and yet frightening bout of incest had me doing before considering any kind of consequences.

Tzuyu flinched when she felt my cock between her legs. I was spooning her perfectly so if I played my cards right I could soon be fucking my little sister. Minutes ago the thought would have made me chastise myself back to reality, but now that I had the chance I wanted nothing more than to take it. I shoved my hips against Tzuyu's backside. She reached back quickly and held me off.

"Nuhh uhhh," she huffed, freezing me in place.

I wanted to so badly, my little sister was right there for the taking. Seeing her body laid out on the bed, her full tits holding in place and her abs flexing as she ground her hips against me - I wanted to simply pin her against the bed and push into her quim where my member lingered so frighteningly close.

But it was those hips and her beautifully soft butt gyrating against me that caused me to reconsider. She was trying hard to make it pleasurable for me despite being unwilling to go further.; Tzuyu was a good girl and would not tease her brother without reward, apparently.

I was close now, and though disappointed I would not be able to take Tzuyu's inner temperature with my own pulsing hot shaft, when I felt her hips rolling impressively around my cock, my regret subsided. I leaned toward my hot little teen sibling, and she back toward me.

At first I let Tzuyu continue to rotate her hips around so my cock slid beneath her lips without my moving a muscle. I had my answer to my baby sister's arousal, she was so wet I could hear the slick sound of our act below. Eventually I began to return her efforts with thrusts of my own. I was holding on to her hip and forcing my pulsing staff between her legs.

It was obvious I was doing right by Tzuyu as well, because within a moment or two her breaths were labored and quiet moans escaped her mouth between them. Each time I pushed against her, I sensed my cock rubbing her clit. She was completely bare and smooth. Her skin was soft and silky the way an eighteen-year-old's should be.

I reached my hand down between her legs from the front, wanting to bring her to an orgasm as I was so desperately near mine. I quickly found her clit, pressuring it while continuing to thrust between her legs. I think it was too much for her, like the building sensation and taboo were more than she was prepared to handle because her hand shot to mine after only a few pushes against her button.

She stopped my hand, but she was unable to stop my hips. I couldn't help grunting with each thrust between my teenage sister's gap, and Tzuyu was beyond trying to conceal her enjoyment so she was moaning and gasping louder now. I worried our parents would hear; they were probably in the kitchen getting dinner ready and not far enough to be so careless. But none of that was enough to stop chasing our climaxes.

I hadn't had a chance to think about what we were doing. One thing had simply led to another and I knew that I was willingly along for the ride. Tzuyu had started it, surely, but I wanted her badly and with my hands holding her tight I wasn't going to let go until we had both finished. I loved Tzuyu so much, and what we were doing was crazy and impulsive and wrong, but I didn't care. As I slid my cock between her thighs the only thought I had was if I would get the chance to fuck my incredibly hot little sister. Tzuyu had unlocked me, for now, into unleashed desire for her and realization that she was every bit as beautiful and seductive as my buddies said. I'd always known but I'd buried it deep, until now when she was naked in bed with me and unthinkably approving of the way my cock was gliding between her legs.

Her hand started to encourage mine in circles over her clit again, and once or twice my head took a slightly different angle, just barely prying her lips apart and threatening entry. I think it got Tzuyu even hotter because of it.

Then, suddenly she was shaking. Her hand was clenched around mine and forcing it roughly against her mound. I watched as my little sister turned to muffle herself against the bed.

"Oh fuck fuck fuck… " she said into the pillow. It was too much for me.

I felt the familiar feeling of semen rising from deep inside of me. Withdrawing so my head was just within the diamond shaped opening between her thighs I spurted out what would be an incredible amount of cum onto my little sister. Still I urged my cock between, not wanting to let the wonderful feeling of her legs hugging me go away.

She was a mess, quivering and panting while I coated her with my forbidden sperm all over the place a brother was never supposed to see, let alone touch. When it was all done, and I could feel she had ridden out her orgasm, I began to take in my surroundings.

What we just did, whatever it was, had to have been as erotic a scene as I would ever experience. Tzuyu, my little sister, lay there with her shirt bunched up and panties around one ankle. She looked beautiful with a light sheen of sweat and that incredible chest of hers still rising and falling with each panting breath. And Tzuyu's tiny opening was utterly smeared with the result of our "nap."

After all, that was how it had all begun. An innocent nap on my sister's bed had ended with me pumping generously all over her young mound. God it was so wrong and simultaneously so unfathomably hot:: her little pink pussy coated in my cum and the way she was purring because of it. I desperately needed to know what she was thought of it all.

She finally turned toward me, surveying my emotions, and with raise of an eyebrow and a sideways little glance, I knew she was with me. What had happened, whatever it was, was okay with both of us. In fact I was still hard and I had not even gotten the chance to make love to my baby sister. Where it hadn't been before, now all I could think about was fucking Tzuyu, making her athletic little body squirm … and soon.

It didn't seem she was going to allow it. She rolled off the bed and stood up from it gracefully.

"Wh…where are you going…?"

She looked at me curiously from above.

"Well…" she said, reaching for her shirt and pulling it up over her head right in front of me. "I have my brother's cum all over my pussy, and I'm not on any birth control right now soooo… I should probably take a shower and wash it off."

I was stunned… I had been the entire time. Looking at my naked little sister and admiring the body I'd just had my hands all over, I still couldn't believe what we'd just done. She looked down at the mess we had made and I did too. She was right, there was gleaming white spunk all over her and her inner thighs were shining with her own fluids as well.

As she turned to walk toward the bathroom I called after her,

"Waitt… Tzuyu… I…" but I couldn't say any more. My brain was spinning in circles and whatever I'd thought to tell her was gone.

"Oh shush," she said casually, "We were just having a bit of fun. Thanks for making me cum by the way Oppa!"

With that, she smiled and closed the door to the bathroom behind her. I wondered if she meant for me to follow her in, but I heard the door lock instead.

All I could think was… 'what…the…fuck…just happened?'

My mind may have been racing, but as I heard the shower running I kept envisioning one thing definitively: Tzuyu's naked little body pelted with warm streams of water. I imagined her nipples were hard and she was slowly washing away our sticky remnants from between her legs. I laid there for a few more moments before slowly pulling myself up, putting my shorts back on and going to my own room to shower as well.

It was all I thought about. In the shower…later at the dinner table with our parents… as we sat and watched TV… Tzuyu didn't show anything that might give us away. Before she had come into the room there had been no indication we would be fooling around any time soon, and as I looked at her, totally casual in a tight tank top showing her stomach and grey sweatpants beneath, I believed for a moment nothing had changed.

'Fuck,' I thought, creating a scene in my head where I tore her clothes off and ravished her on the couch with no regard for our parents sitting there. I was just to the part where I had pulled her pants and underwear down at once and was about to finally line up and…

"I'm gonna go to bed," Tzuyu announced to us. My mom and dad said goodnight, and I mumbled the same. As my sister walked by I watched closely. She smiled at me and raised her eyebrows. That look… it was as if everything Tzuyu did turned me on. Did she want me to follow her? Maybe I would get to have another go with her after all.

Watching her saunter off, I decided I would wait an appropriate amount of time before heading upstairs after her. I was a man possessed. My hot sister had given me a little and I wanted it all. And I'm not selfish, she looked so cute as she was cumming in my arms earlier that I absolutely wanted to see it again. I would kiss her and lick her, worship her, for hours if that's what it took, especially if it meant I could sink into her afterwards and fuck her tiny pussy until she screamed.

I reached her door, mouth watering, and seeing it open I walked near to look inside. She was in the bathroom, and when she came out she was wearing a t-shirt that just barely covered her bottom and concealed her tantalizing parts beneath. She saw me in the doorway, frozen once again, and walked toward me purposefully.

I was leaning in to the room when she reached the door, and she outstretched a hand to my chest. Cocking her hips to the side she addressed me,

"So… you're here for more or something?" she said with attitude.

"I…I…" I stammered. I was usually never at a loss for words, but Tzuyu had me.

"Look, I'm not sorry about what happened today…" she paused, "but it doesn't mean you can just come up here and expect to get in bed with me."

I didn't have an answer for her. That was exactly what I had come upstairs for.

"Mom and Dad are right downstairs, they'll be up to say goodnight soon… or didn't you think about that?"

Nope, I hadn't considered that either. Tzuyu read the answer on my face and giggled, which made me feel only slightly better. She smiled at me; I couldn't help but look disappointed which obviously entertained her. I was hard, rock solid, and I desperately wanted to get in bed and play with her.

She used the hand that she'd placed on my chest and pushed me out of the way of the door. Slowly shutting it she looked down before it finally closed, seeing the tent in my pants and then back up at me.

"It's pretty big… by the way… That's why I wanted to feel it. Goodnight OPPA." She spoke with a smirk, and shut the door.

Again - 'what… the… fuck…is going on here,' I said to myself. I felt cheated, and horny, and desiring my little sister more than ever now that she'd denied me. I limped back to my room with a hurt pride and a throbbing problem. All I wanted was to feel Tzuyu's tiny hand wrapped around my shaft again and she'd unfalteringly told me no. I hated being so helpless.

I must have gotten myself off three times that night thinking of her. I knew it was wrong, but I was past the point of caring. I was merely worried that I'd never get my hands on her perfect breasts or feel that pert little ass of Tzuyu's rubbing up against me again. I schemed ways I would be able to get her alone in the next few days.

And then… nothing.

None of my schemes were possible the next day, I only saw Tzuyu for a moment or two and she locked her door that night. It was Tuesday night that we'd woken up together and by Saturday I still hadn't gotten more than a moment or two alone with her. I prayed that she was just biding her time, and when we were together she was normal as can be - which meant cute, bubbly and talkative as she always was with me. I don't know how I hadn't been drawn to her like this before…

I'd never felt doubt and uncertainty like I did in those few days. Did Tzuyu know the effect she was having on me? She would avert her eyes if they met mine for too long, but then she'd brush by me and touch my arm as we did dishes in the kitchen after dinner. She smiled affectionately and laid down next to me on the couch with her long legs across my lap on Friday and Saturday morning, but with my parents there I didn't dare touch.

She must have known. I concluded that Tzuyu was playing hard-to-get perfectly, but even believing that didn't cause me to want her less. By the time our family had come over on Saturday afternoon for our little cousin Ren's birthday party and a sort-of family reunion, I was so confused I had trouble focusing on anything.

'Oh… My… God…" I thought as I watched Tzuyu step out onto the deck to help prepare for the gathering. She looked so amazing in her bathing suit that I practically fell in the pool instead of skimming it.

It was dark blue… wonderfully simple, and yet fit so well it looked like it was made for her. On each hip there was a gold hoop connecting the bottoms, and one atop both triangles over her tits. The bikini top held her breasts snugly in place, with enough skin showing to remind me just how ample they'd been in my hands. When she ambled down the steps both wonderful globes jiggled in place. And finally, her beautiful face glowed tan, with a hint of makeup and framed by brown hair which was full, tussled and wavy.

Part of it was my recent decision to let my eyes wander and mind free to dream up all of the things I wanted to do to her. But mostly, I think Tzuyu had finally become the absolute beauty I always knew she'd be growing up. At eighteen, I don't think she could have gotten any hotter than she was walking around in that snug two-piece, and if not I was in trouble. I tried so hard not to stare, but I knew she saw me. As my little sister approached me she blushed, and I quickly looked down like I hadn't been undressing her with my eyes.

"Do you need help?" She asked sweetly. Girls that looked the way Tzuyu did weren't supposed to be so kind or loving. It would have made things easier for me at least.

I flicked my eyes up at her and tried not to stare anywhere, like her bare, flat stomach and the tiny jewel she'd begged my mom for when she was fourteen. "Y…yeah… I still gotta vacuum the bottom, think you could grab it from the shed?"

"Sure!" She agreed with a pretty smile before turning around and walking away.

How could she be so cruel to me, I thought. It wasn't fair that she could look so gorgeous and parade around the house like she was, dangling herself in front of me.

I watched out of the corner of my eye as the petite brown-haired beauty sauntered over to the shed in our backyard. Her bottoms weren't a thong or anything, but they left enough bare cheek for a flashback to thrusting against Tzuyu's backside in her bed.

"NO No no no no…" I heard my little sister say frantically from across the yard. "There is no way I'm reaching under there to get that!" She called to me.

I laughed. I should have known a few cobwebs would make Tzuyu squeal; she could be such a baby. I quickly set down my skimmer and walked back to the shed.

"Please Oppa,?" She yelled, still standing in the doorway and looking in. When she turned around I was already there.

"Ohh," she gasped, giggling a bit and looking up at me. She hadn't expected me right behind her. "Do you think you could…um…" Tzuyu was a little flustered, and I thought I saw her eyes wander over my bare chest. "Can you get it for me?"

She didn't step back, and neither did I. For the first time since Tuesday, I kind of felt like I was in control of the situation. I could have reached out and touched her, maybe taking hold of her hips. I think both of us expected something. Nobody was around, nobody would see, perhaps just a touch… I could hear Tzuyu inhaling deeply through her nose; her body language begged me to act.

What little distance there was between us, Tzuyu attempted to close it. With her back arched to show off her wonderful boobs to me, and her mound covered in only the fabric of her suit, I could have lifted up her tiny body and pinned her against the shed.

I wanted to. Actually, I wanted to lay her in the grass right there and fuck her senseless. I wanted to rip off what little bit of clothing she was wearing. Seeing the faint outline of her nipple through its fabric I wanted to tear the top from her and free her perfect breasts.

But I didn't. Knowing I might curse myself for it later, I reached out,…hearing Tzuyu inhale sharply… I touched her on the shoulder, and with enough force to surprise her I pushed her aside.

I didn't bother to look at her; the little gasp she emitted said it all. I had shunned my little sister who, despite her best efforts, had expected me to bend to her every will. It was no match for that time in her bed, but it felt good.

During the party I would replay the event in my head between visions of what had been, and what could have been. Sometimes I caught Tzuyu looking my way when she thought I didn't know. Giving my cousin Jin too much attention seemed to buy me her watchful eye.

Tzuyu gained the upper hand again when we were playing a game with the younger cousins. I'd ended up wrestling her in the deep end and couldn't avoid my hands finding their way to her butt. Whether her thigh ended up between mine and rubbed against my crotch intentionally or not, it was my little sister who pushed away first. That quick interaction left me unable to get out of the pool for over ten minutes.

As I soaked in the water, waiting for my arousal to subside before getting out, Tzuyu stood nearby drying off. Something seemed different, I couldn't quite put my finger on it, but her eyes seemed suggest she was scheming. Her hands were over her head, drying off that mane of hair, and her body was on display for my hungry eyes.

It was strange having this secret between us. My other cousins probably noticed how phenomenal my sister looked in that blue number, or how alluring it was to watch her use both hands to adjust each breast in the top. But the exchanged glances, and the unknown feelings and urges we were having toward each other were uniquely our own.

Everyone was getting their food out on the patio and sitting down about the yard when I finally got out of the pool. Tzuyu had left my sight just long enough for my blood pressure to drop back to a normal level.

I walked inside and immediately the cool air in the house made goosebumps appear on my skin. I knew Tzuyu was inside too; I guess I just wanted to be nearer to her. She smiled at me as I walked in and grabbed a glass from the cabinet nearby, filling it with iced tea. I stood against the countertop and looked at her, leant over the sink and washing a few dishes. The silence… the tension… it was palpable.

Tzuyu looked in my direction with a mischievous smile. She knew I would be watching her, and this time she didn't seem inclined to pretend I wasn't - everybody else was outside and she could see them safely through the window.

Our gaze met for the umpteenth time that day. It wasn't as if we were too scared to talk, our eyes simply said more. Tzuyu looked toward her backside, she was obviously bending an extra bit to show it off. My eyes followed hers and I watched as she shook her butt deliberately. It jiggled ever so little, and fuck was it sexy to watch.

"Tzuyu…" I breathed. I didn't even know I'd said it until she smiled wide upon seeing my reaction. She bit her lower lip, I must have made her feel truly sexy.

"Come here," she called to me.

I moved toward her, entranced. My feet carried me so I was right behind her. When I was close enough she reached behind for my hand and pulled me in tight, placing my palm on her tummy. I felt like a child as she showed me what to do. The unknown territory and the absolute puzzle of teasing and withholding she'd drawn me into had my intentions drawn up in knots.

"You want me, huh?" she asked quietly, leaning back as I wrapped around her a bit tighter. I found my voice.

"Is it that obvious?" I asked. She giggled adorably, and my cock throbbed between us. She wasn't moving her hips, but I could feel her cute ass pressing against me with only a few layers of fabric between us.

Now full and hard, my erection had made its way up to my waistband. My little sister could feel it there, I knew it because she eventually began to wiggle her hips up and down on me, standing on tiptoe to do so.

"God you're big," she whispered to me, both my ego and my cock inflated in response. I reached in front of her and brought my fingers to her mound. I knew we had to be extra careful with so many family members near but I had to feel her, to make her squirm.

"Tzuyu?"

"…unhhh… what Oppa?" She huffed as I pressed my fingers against her clit.

"I can't help it…" I started, feeling her squeeze me between the cleft in her cheeks as I spoke, "you're just so fucking gorgeous…I want…" I paused, afraid how she'd take what I wanted to say.

Tzuyu pushed me back with her backside, turning in my arms.

"I know what you want Oppa…" she said sweetly, looking right at me as she did before kissing my chest.

"I know you've been thinking about it, because I have too…" she kissed my neck… "I know how bad you want it…" Finally, she kissed my lips. We hadn't yet done that, and the feeling of her, warm and soft… I wished it would never end.

"We just… can't…" she said, with true remorse in her voice. I looked at her, and we stood there in silence. The yelling of our cousins and the boisterous laughter of our aunts and uncles came through the sliding door. Looking deeply at me, she spoke again.

"It's too risky… look at how we're acting right now!"

Sure, she had a point, but hadn't she initiated this very embrace? It seemed to me that despite her games, she wanted it as badly as I did. Instead of arguing with her, I did what my body told me to and pushed my hips against her, hoisting her slightly against the edge of the counter. I was hard, very hard, and I know she felt it against her because she inhaled sharply.

"You have to stop…" she demanded.

But I didn't want to stop, I liked having my little sister's waist in my hands and the undeniable feelings we were both having, despite her protest. I knew that this might be my last chance to be with Tzuyu now that she'd stated her case.

A few days before we had just been loving brother and sister. Indeed, lust had gotten the better of me. Tzuyu, in her infinite beauty, had me pining to touch her more, feel her, take her… But the pure ferocity of my desires was fueled by that long-standing love and affection we'd shared; I knew that much. Now, with my beautiful little sibling ripe for the taking, I badly wanted to make love to her and discover her more deeply as a sister and a lover. Pinned against the counter and with all the signs of her physically allowing my actions, I grew bolder.

I slid my hands down a few inches and took her bottoms with them. Tzuyu let me, and looked over her shoulder through the window to ensure nobody was going to catch us in the act. I don't know why she let me do it, maybe she didn't know what I intended to do.

I looked down below us, at the bare skin above Tzuyu's slit. Even from this angle I could see she was very wet. I reached down with my palm upward. My sister caught my wrist, but not before my finger could land perfectly over her clit and positioned just right for me to urge into her.

I did just that, after teasing around her opening for a few seconds. Her grip tightened on my arm as I slipped my middle finger into her. My god was she tight. Only one finger inside and I knew that my little sis was as snug as they come.

"Fuuuucck…" she hissed as I wiggled it inside of her. Though Tzuyu was resistant to having sex with me she certainly wasn't making any moves to stop me fingering her.

My little sister reached back and braced herself with a hand on the countertop. As she nervously glanced through the window to the party outside, we both felt the exhilaration of our forbidden actions with imminent discovery only a frighteningly close distance away.

I began plunging my finger inside of Tzuyu faster and pressuring her mound as much as possible with the palm of my hand. Watching her writhe, her gorgeous body half on and half off of the countertop, I found myself urging my hips against her as well. I was hard for her, so incredibly filled with lust that it couldn't be helped.

"Oppa… seriously… uhhhh… Oppa!"

I knew if I kept going, I would make my beautiful little sister cum. It was obvious that my hand was caressing her insides just right, but the tone of Tzuyu's voice was probably spurred by something else. Whether she meant to or not, my little sister's hand had found its way over my shorts and to the long path of my hard cock beneath. I simply reached down and tugged at the waistband to free the velcro and drawstring that had kept my erection within.

Now that my shorts were open, Tzuyu's hand was on bare skin, and I don't think she expected it. Either that, or the fact that seconds later my tip was precariously close to her dripping wet lips, but my little sister was not happy. I knew it was a risky situation, and that we could be found committing incest by any one of our nearby relatives with little notice. I could hear my dad laughing and my uncle finishing another one of his stupid jokes through the open door, but I didn't care. Yet, my middle finger was still immersed in my sister's tight, teenage pussy and I wanted nothing more than to replace it with my cock.

"Don't… don't… ohhhhh… dooooon't…please Oppa…fuckk…" I really shoved my finger up into her then; Tzuyu was going to cum. I massaged her, with a finger inside and a hand under the triangle of cloth over her breast.

I wanted to, but I simply couldn't fuck my little sister without her permission. It felt good enough that Tzuyu had my shaft pinned against her thigh and was stroking me to the best of her ability as orgasm approached and overtook her. Her other hand was haphazardly scanning my body, grabbing at the arm which was reaching down below, or at my chest and shoulder so she could simply feel me.

Her breasts felt incredible, her body felt incredible, and when our lips touched as Tzuyu was trembling through the remainder of her orgasm, that felt incredible too. We'd hardly more than peck each other's lips yet, and my little sister might not have allowed the darting of our tongues if she hadn't been shivering through a wonderful climax. We were lucky that nobody had decided to step inside at that moment, because neither of us intended to part, at least until the beautiful brunette in front of me had given me leave.

Slowly, I withdrew my finger from Tzuyu's tunnel. Her walls objected with gentle suction until my fingertip brushed finally over the hood of her clitoris, causing Tzuyu to shudder in such a way that my cock bobbed against my little sis with arousal.

Our foreheads were pressed together, and my little sister had her delicate hand still wrapped convincingly around my shaft. I wondered what she was thinking, for her body language spoke a message utterly apart from the words she had spoken. She whispered to me, as if someone might overhear.

"God you're such a jerk," we both laughed, Tzuyu between shortened breaths, "why did you do that to me?"

"Because I know you wanted me to…" I told her. She was still sliding her hand up and down my shaft, the feeling of her thigh and fingers driving me wild. "Come on Tzuyu, why did you let me?"

She rolled her eyes, annoyed, but with a smile so I knew my question wasn't entirely unfounded. And still she was holding on to my hard staff. She must have meant to, because below us my little sister was playing with my tip and it was lingering but an inch from her opening. Between her thighs and in her hand she held me, her bikini bottoms hastily pushed down to the floor and my trunks open just enough for her access.

At first I was watching her hand and agonizingly wondering what she planned to do. When I looked up I could see that she, instead, had been watching me. I think it excited her, my uncertainty and simultaneous desire for her. I could have come then if I didn't think I might be inside of the gorgeous little teenager in a moment or two.

"This is as far as I'm gonna let us go, Oppa, I'm serious." She said when our eyes locked.

Damnit, I thought, she wasn't going to give in. The little tease. I'd just made her moan and shiver herself into a huge climax on our kitchen counter and she was still withholding. The depressing thought that I'd never make love to her was a real possibility that entered my mind.

I tested her anyway, urging my hips forward so my cock was sent between her legs. Tzuyu shook her head no. And though I could feel her jump when my tip was sent skirting her clit and the lips I so desperately desired to open to me, she prevented it with a push of her hand.

"It's not gonna happen Oppa…"

It didn't seem fair. I hadn't started all of this. It was Tzuyu who had caused the evolution of my thoughts and the final acceptance of how undeniably gorgeous and seductive my little sister was. It was Tzuyu who had flaunted her body and delivered those mischievous glances and touches in the last few days. Sure, I had jumped at every opportunity, but I wanted to consummate what she'd been hinting at all along.

I grabbed her hips tight, feeling her hipbones beneath. I felt her grip on my cock loosen as she sensed what I was doing. If she let go I could just shove forward and bury myself into her, ending this stupid game and breaking through the wall that stood between us.

"Don't you dare," Tzuyu said.

I pushed, she wasn't strong enough to stop me. My cockhead mashed against her clit, and Tzuyu's head swiveled in response. I thought I could feel her lips parting as my tip found them. My little sister had her hand on my cock so she was unfortunately still in control. Though I tried to angle correctly, she swiftly guided me so when my hips met hers I was snug between her thighs again. I'd felt that already; I wanted more.

I think my little sister knew by the time she looked into my eyes that I didn't intend to give up. She glared at me, then down to where she was holding me tediously close to sinking inside of her… then through the window again. It suggested to me that she wasn't entirely committed to stopping me; my heart was pounding in my chest at the possibility.

I was holding my breath and feeling incredibly nervous. I wondered if Tzuyu could tell. I was about to fuck my little sister on the kitchen counter; would she blame me for being so brazen? It seemed as if I had wanted her forever. Now was my chance. I took hold of her wrist; inches from my grasp she had her fingers wrapped around my hard cock. And inches from that was my tip, the head of her own brother's cock, prodding at her tiny opening and begging her to allow me to lock us together in incest.

I tugged at her wrist strongly. She could have stopped me. She could have put up a fight, but I knew her heart wasn't in it when I felt her willingly let go of my rod and allow me to guide her hand to the counter on which she sat and hold her there. She was going to let me fuck her.

One hand on her left wrist and the other on her right, she still feigned to resist me. I watched her bite her lip, felt her stand on her toes. She wiggled in front of me, halfheartedly trying to free her hands.

I think I could have angled just right to follow through with it, she was just so damn wet. My head urged at her outer lips, and quickly slid enticingly up her slit, missing her entrance. Tzuyu opened her mouth a little bit; I could feel her tremble.

I wish I had done it: finally pushed my cock into my little sister's pussy… filled her up with every inch of me. I wish I had because that's when my mom called from the patio…

"Kids!" we heard through that open door.

'God damnit!' I thought. We both stood in silence. My cock was shoved between us against Tzuyu as we listened for our mother's next words.

"What are you doing in there, can't you come out?"

Tzuyu and I looked at each other, my intentions were unchanged but she looked as if she'd changed her mind. I was still going to go for it, and withdrew from her in order to try again. If I just hurried I could take her… I pointed my cock back toward her entrance. 'Please just let this temptation end,' I thought.

This time she actually did stop me, slipping her hands from beneath mine on the counter and shoving me away.

I was dumbfounded. My mouth hung open in disbelief.

She quickly reached for her bottoms and pulled them up, lucky that they were still wet from the pool. The sheen of her arousal was apparent to me on her mound as I watched until she lifted the blue bottoms to cover it. I thought she might just walk out without saying anything, but she then walked up close to me.

She reached down; I had no words. She grabbed my cock and shoved it into my trunks. It didn't fit well, still sticking up and out of my waistband.

"I told you we couldn't do this. See what I mean?" She had this smug grin on her face that I thought still looked sexy.

"You might want to wait to come out until you're not so…" she began, lacing up my shorts deliberately "…large." An inch or two of me was still showing above the bow she tied, she tenderly slid her fingers around me and pushed my cock to the side.

I was still speechless. I watched her spin hastily towards the door, seeing her breasts and butt jiggle beautifully. I knew she was smirking, though I couldn't see it as she walked away without another word.

'Again!' I screamed inwardly. I hated Tzuyu for depriving me after she'd so clearly teased me into a sexually starved frenzy. There were other girls I could have, some even that were only a quick text message away. But I wanted this one. I wanted my little sister. I wanted to strip her, manhandle her and then, finally, fuck her like she'd been begging and teasing for.

It took me a few minutes before I could even walk outside, mostly because I was fuming and partly because my cock refused to forget the sight and feeling of my hot little sister bottomless on the kitchen counter.

Tzuyu didn't even avoid my gaze when we were both seated outside. When my eyes pointed in her direction, whether to glare angrily or stare at her perfect breasts in that bikini top, she looked back unapologetically. I saw her bite her lip once when she felt me look down at her chest. I had to focus on eating just to withhold my animal instinct to pounce across the table and lay Tzuyu out in front of the entire family… even that thought made my trunks stir.

The rest of the night went pretty much the same way. God was I mad at her. I couldn't understand why she would initiate everything and then just go cold on me at her convenience. She had to know what she'd started and that I'd want more now that she'd granted me a sample of the fantasies of her that had often as I slept.

Tzuyu may have sensed it, but she didn't steer clear of me. I allowed the sympathetic thought that she might have been as fixated on thoughts of me as I was her and that was drawing her close. I lightened up by the time it was getting dark. When she came to sit close to me around the bonfire later that night I could feel my frustration begin to eek away, replaced instead by her presence as she wrapped around my arm.

She was making little effort, in my opinion, to hide that there was something going on between us. I kept looking around nervously to determine whether someone around the bonfire could tell. I guess they didn't know that my little sister and I had gotten each other off in her bed a few days ago, or in the kitchen as they ate, so they didn't see her affection as out of the ordinary.

I knew I wasn't going to get a chance to do anything more than squeeze my fingers against Tzuyu's side as we sat together that night. I was so distracted. Feeling her next to me, the warmth of her body and that subtle vanilla smell I think came from her conditioner, most of the night was a blur. I did have a good time; hanging out with my extended family and putting back a few beers always proved fun. I could tell Tzuyu was getting a bit drunk off her intake because she leaned more and more into me as the fire burned down. I would never tire of the feeling of her breast squished against me; she was probably doing it intentionally.

Tzuyu and I were both going to have roommates that night as we had little cousins littered about the house while their parents, my aunts and uncles that had a few too many drinks that night, slept it off until the morning. Something about the way Tzuyu had looked at me when she knew what I planned to do on the kitchen counter had me drifting off to sleep that night with a glimmer of hope.

But before I got in bed, with our cousins chattering in each of our rooms and my little sister and I preparing for bed, I found myself alone in the hallway. Tzuyu stopped me on her way to the bathroom. I was walking sleepily toward my door and before I reached it I felt a hand on my chest. Next thing I knew my little sister had pushed me into the darkened laundry room and was pinning me against the door.

Her lithe little body was pressed against mine and I felt no inclination to move as I took her in. She was wearing a pretty simple flannel PJ set with low riding pants cinched around her tiny waist. She must have 'accidentally ' forgotten to button up the top because it was hanging open and she'd changed into a light purple bra that snugly held her tits in place.

She was silent at first. The only sounds I could hear were the giggling of my nearby cousins and my little sister's quiet breathing. For a few moments she seemed content just to let me look at her, and her at me. Then she looked as if she was going to say something, but decided against it. Instead she stood slowly on her tiptoes to level her eyes with mine.

Her eyes were fixed on mine and her lips so close. My hands moved on their own to my baby sister's sides. They slipped easily past her open nightshirt and found her bare skin. She was so fit I could feel her core muscles flexing as she stretched to stand as tall as me. As soon as she felt me holding her she gained some confidence and kissed me.

At first I just let her. I wanted her so badly, but playing directly into her game hadn't worked out so well for me yet. She fidgeted, seemingly hoping I would move my hands around on her stomach. When I did, I guess I just melted. I couldn't touch her like and feel her lips hungry for me to kiss her back without doing so. It felt dangerous, so close to our own cousins and kissing like we hadn't a care in the world.

I eventually gave into her entirely, and before long I was fully hard and pushing out my hips into Tzuyu. She was grinding against me, and every so often I could feel my cock wedging between her thighs. We were making out unabashedly, my hands were roughly handling her and palming her breasts over the bra. I'm not sure I've ever been so passionate with a girl besides her before or since.

I wondered if it was because Tzuyu had been drinking. After all, she was only a tiny eighteen-year-old and I'd seen her toss quite a few back. Or maybe it was because we'd been so close to the real thing before. She had protested convincingly, but once again I was utterly confused by her behavior. I suppose this unknown territory we were traversing had both my little sister and I acting unpredictably at every step.

I remember I was moving my hands down beneath the waistband of her PJs when we heard the bathroom door close.

"Holy shit!" my little sis whispered. She leaned into me as close as possible and peeked out the door.

Had someone seen us? Had someone walked by when we were caught up making out in the room right next door. I looked around us, we were obscured in darkness in the tiny room and only the light from beneath the bathroom door was casting a pale light into the hallway. I hoped we were safe, but couldn't know for sure.

Seconds later someone was brushing their teeth in the bathroom and Tzuyu and I breathed a little easier. If we had been seen, whichever one of our cousins that had walked by probably wouldn't have just moved on and gone about their routine. Regardless, Tzuyu still spoke very softly.

"Are you still mad at me?" she asked sweetly. Her big blue eyes looked up at me nervously.

I wanted to say yes. I was pissed, at some point in the evening, that she was denying me what I thought we both wanted. I guess I had kind of forgotten for a while that I was her big brother, that I should have been able to keep my composure and not anger so easily at her withholding.

It was for that reason that I told her "No, I'm sorry I was so pissed for a while there."

"I could tell," she responded, "you were being kind of a dick."

I didn't really like hearing that, and she must have noticed because as soon as she saw my glare she continued. "You were going to fuck me, right on the kitchen counter. I said no and you were still going to do it!" Again, I was not pleased. She was right, but I could feel her riling me up. "I bet you'd fuck me right now if I let you!" She was whispering as quietly as possible while still gazing at me wide-eyed and with plenty of attitude.

It was all incredibly confusing. Here I was with a hard-on for my little sis, which was still pinned between us and my hands still in her flannel PJs on her pert little ass, but I was getting scolding for wanting to bang my younger sister. Not to mention she kept saying "fuck me" and her language was arousing me like none other.

"Tzuyu, come on!" I complained. I had to catch myself so I wasn't too loud. "I won't blame you for what I want to do with you, but please don't pretend you're innocent."

I could tell that she was actually listening to me, for a change.

"One day we're fooling around in bed and the next morning it's like you've completely forgotten." She scoffed as I said it. I continued anyway, "and you looked fucking gorgeous in your swimsuit… you look fucking gorgeous right now, You keep teasing me too; what do you want me to do? "I could tell she liked hearing me praise her, but she was way too stubborn to give in so easily.

"Look," she answered, "I'm not saying I don't want it as badly as you do, because I do. I've had dreams about you since I was fifteen, and then you were in my bed, and then I felt you poking my butt with your big cock and I got horny and then I just kind of acted without thinking."

She was racing through the explanation, probably because we heard our cousin stop brushing their teeth in the room next door. "But you can't just fuck me. First of all, you're really big and I can't just take you on the kitchen counter. Which you were GOING TO DO."

"Second, look at us. We could get in so much trouble. What if whoever is in the bathroom had seen us?"

"Hey," I interrupted, "you stopped me and kissed me!" I was still reeling from hearing that she had fantasies about me. I'd definitely thought about her before, but until she was stroking me in her bed I'd never been bold enough to do anything about it.

"Ugh," she sounded, "whatever."

We were silent for a moment. We were both feeling argumentative, turned on, and confused. The combination made it hard to fire back at each other. Even so, the little tease was still moving her hips around. I don't know if it was just to screw with me or, more likely, she was doing it to make herself feel good.

I ran my hands firmly from her hips all the way up to her breasts, massaging her roughly as I did. Despite her attitude and the words coming out of her mouth, I could feel her breathe deeply and writhe in my hands. I wanted her to just give in to the desires she was clearly feeling and stop posturing herself.

But I knew she wouldn't, especially not tonight. Before my cousin could come out and pass us again Tzuyu pushed away from me and walked, no strutted, back to her room. I backed further into the laundry room and waited for my cousin Chao to pass. He clearly had no idea we had been in there.

I went to bed that night frustrated and still completely turned on. The hour or so it took me to fall asleep my mind raced between visions of my bottomless little sis in the kitchen, or in that cute bra in the hallway, and then the anger I felt about her teasing. A selfish part of me hoped that she would be brooding just the same in the room down the hall.

The next day most of our extended family left. To my dismay, my Aunt Cheng and Uncle Wei hadn't booked a flight out for another two days. They always pulled shit like that: overstaying their welcome, in my opinion. And this time we'd be stuck with little ones sleeping in mine and Tzuyu's bedrooms for two more nights. I was utterly depressed. If only I had a little privacy, where perhaps I could slip into Tzuyu's room and lay with her for a little while until she snuggled up to me like she'd done before. Sadly, I'd not get the chance.

And yet, the next morning, more inexplicable behavior from my sister. I was brushing my teeth in the same bathroom we'd made out and then argued next to the night before. Tzuyu came in wearing some ridiculous workout outfit. Her top was not much more than a light blue sports bra and her shorts a tiny pair of black spandex material with white trim. Her tube socks that matched the top and a pair of new sneakers rounded off the whole thing and made her appear beyond adorable. The eighteen-year-old looked incredibly tan and lean, and showing so much skin that I was practically drooling as I watched her in the mirror.

I expected to get nothing from her after our disagreement the night before. I was wrong. Maybe having cousins in her bedroom for the night had kept her from taking care of some of the sexual tension I'd felt between us in the laundry room. Whatever it was, I watched in disbelief as Tzuyu came up behind me and I could feel her breasts pressing against my back. Holding my gaze in the mirror she slid her arms, slowly but determinedly , to my front and over the shorts I'd worn to bed.

"Are you always hard?" she asked innocently.

"That must be difficult for you." She continued, sounding snide.

Her hands were both, one after the other, caressing the length of my shaft through my shorts. I had been somewhat hard as I usually was in the morning, and more so when I saw my little sister in that damned running outfit. But after feeling the teenager's hands rubbing me, I was positively pining for relief.

I'd stopped brushing my teeth, so my hand hung there suspended in my disbelief. With my other hand I had to brace myself on the vanity because Tzuyu's touch was so amazing that my knees were feeling weak. She was holding tightly to me from behind so I could feel all of her tiny frame and still she was leaning to look at me in the eye.

It felt incredible, though I wanted to get my hands on some of the exposed stomach of my little sister's or the tight material that made her butt look so graspable. I was content to let her continue rubbing me for another minute or so, but thinking about how hot she looked in her outfit made me excited to seat her on the vanity like we had in the kitchen the day before.

I was glad I waited because a few seconds later Tzuyu pulled back the elastic of my shorts and shoved her hand in to grab my cock. She took it firmly in her hand and encircled it with her fingers.

"Holy crap," she exclaimed with big eyes, "I guess I keep forgetting how big you are."

She gently ran her fingers from base to tip and back before grabbing me firmly again. I knew my little sister hadn't had more than a boyfriend or maybe two so her experience was limited, but it was if everything she did was just perfectly sexy. I could never tire of the taboo behavior we had been acting out in the last few days.

And then… it was over.

No warning, no cause like a relative walking by or our parents calling; she just stopped.

"I gotta go for a run," said the beautiful brunette.

She pulled her hand out of my pants and the waistband returned with a 'snap' against my skin. Tzuyu put her hands on my sides and squeezed gently, giving me a jolt before saying "See ya later alligator!" and heading for the door.

"Tzuyu, what the fu…" I called after her. But she was gone, and for the umpteenth time that week I felt totally cheated. I'd let my little sister completely screw with my mind and now my desire and arousal. She wasn't just teasing me innocently or playfully; she was stringing me along for her own evil enjoyment.

It took a full fifteen minutes before the damned sexually starved frenzy my teasing, baby sister had left me in subsided, and when I sat down I was fixated on the image of Tzuyu in her outfit. Someone asked me a question at breakfast and think I actually asked them to repeat it three times before I was able to answer; I was that bound up.

I had to do something. I had to stop fantasizing about Tzuyu and letting her prey on me the way she had been. She was not going to end her torment; that much was clear. But she was also not going to let me call the shots.

I was thinking about how I might sit her down and talk to her, or tease her right back, when she returned from the run. She was glistening from the exercise, her skin shiny but only just. She walked past the six of us seated at the table. I could tell that every one of us guys, even my youngest cousin of around thirteen, had noticed her. I remember thinking how funny they looked, pretending not to watch her as she filled a glass of water and tipped it up in front of the sink. A few drops of condensation landed on the tops of her breasts, and I watched them roll down into her top in the wonderful cleft between each breast.

Then I realized that I probably looked no less pathetic than my cousins, my dad or my uncle. I was as bendable to Tzuyu's will as they were, and I felt the familiar anger at my helplessness climb into my brain.

"Have a good run honey?" My dad asked.

"Yeah!" Tzuyu said, "but it was really hot out there and now I'm all sweaty."

She sort of stuck out her abs and looked at the shining surface of her skin as she said it. My relatives got to talking about their workout routines and such. I was pretty much zoned out, thinking about Tzuyu, what I wanted to do to her and watching her as she walked around the kitchen. At one point, Tzuyu even got competitive, talking about how she thought she could probably beat me in any workout.

"You are really BIG," Tzuyu emphasized. She raised her eyebrows at me as she said it. I knew what she meant even if our family didn't, "but I think I could take you!"

My cousins both laughed, thinking she was issuing a dare. And as I remember, it was then that I decided to take her up on it and to put an end to Tzuyu's teasing. Watching her, with the tight spandex hugging her breasts that I longed to see bouncing up and down as I fucked her, with the taut midsection I would hold on to as I thrusted… the miniature shorts that cradled her pussy so I could just make out her mound and lips… And again she was just dangling herself in front of me like there was nothing I could do.

Well, I could do something, and I was going to. Tzuyu told us that she was going upstairs to shower, and I just nodded my head. I wouldn't give her the satisfaction of shooting me another naughty look.

I sat in silence at the table for a few moments. My heart started to pound. I was too fed up, and I was going to explode if I waited until the next moment that Tzuyu and I were alone, whenever that would be. Would I be able to pull it off? What would Tzuyu do? Could I be caught?

Throwing caution to the wind, I mumbled a few words, excused myself and headed upstairs. With each step, my heart pounded harder. I felt like it was going to jump out of my chest.

Thump

It was like my heartbeat was at my inner ear and the door handle to Tzuyu's bedroom was a million miles away. It was probably only a few seconds but my head was pounding to the fall of each step until I reached her door.

I heard her turn the shower on within. There was a bathroom in her room actually, so the fact that she was out in the hall the night before meant she had intended to run into me. All the more reason I had to keep pushing ahead with my plan.

I reached her door and listened. I imagined that inside my little sister was peeling her clothes off If I went in now I might be treated to the sight of the teenager bent over as she stepped out of her shorts. Tempting as it was, I had to wait.

It was the longest thirty seconds of my life. Standing there, knowing my naked little sis was just feet away, and knowing what I intended to do… I was indescribably tense.

Finally I heard the sound of the bathroom door close and shortly thereafter the shower door sliding shut. I took a deep breath and turned the handle to her bedroom as quietly as possible. Peeking in, I saw that the coast was clear. I could hear Tzuyu in the shower, probably just beginning to cool off after her run.

I closed her bedroom door behind me, and then stood at the bathroom door: the final threshold between me and the naked teenager who had been teasing me into submission and plaguing my thoughts and dreams. It was with that realization that I opened the door swiftly and silently, slipping in without making a noise.

Tzuyu was turned away from me; I was thankful for that. I could see her through the clear shower door. Her workout clothes were in a heap on the bathmat and she was running her fingers through her hair. She had no idea I was inside or that my hungry eyes were upon her.

Her hair was dark and wet, and even from behind Tzuyu was stunning, drawing me closer. I hadn't yet had the chance to see my little sister fully naked and standing up, stretching to thread her fingers through her hair. The swell of her breasts from the side and the slender and youthful nature of her frame reeled me step by step toward the shower.

My heart was beating incredibly fast and my hands were shaking. At the last minute, I looked up and down my little sister's body. She was absolutely gorgeous, wet and unspeakably alluring. I recalled the desire I felt for her and the way she'd driven me to it and found my confidence. In seconds I tossed off my shirt, shoved my shorts to the floor and grabbed the handle of the shower door.

Quickly, I cast the door to the side and stepped inside. Tzuyu finally heard me and was attempting to wipe the water from her eyes and turn, but she was too late. I'd already shut the door and pinned my little sister against the tile wall of the shower before she could stop me.

"What the fuck Oppa!"

I had been hard from the second I stepped into her bedroom. I had been waiting for this moment since I'd first felt Tzuyu's little backside against me in her bed.

She knew 'what the fuck' was going on because I had her hands pinned against the wall with mine and my cock was planted between her legs. Her chest was pressed against the tile too, and her face turned sideways. I could see the mounded flesh of her tit spilling out to the side of her.

"Oppa, I'm warning you!" She said.

"You're warning me what?" I asked, "What Tzuyu? That you're going to just fuck with me all you want and then just walk away like you own me?"

She didn't answer, but I swear I felt her hips move. The water was only on my legs, but I could see steam rising up between us. I tested her by moving my hips backward and sliding my cock, which had been tucked into the gap between her thighs, against her pussy lips. Then, right away, I pushed it back. Her soft ass stopped me as I forcefully thrust against it. I intentionally missed entering her, but I got so close that I know it got Tzuyu's attention. My brain was positively spinning; I withdrew and set my head at just the right spot where I'd finally push into my little sister's pussy and wiggled it there against her lips.

Tzuyu tensed and her body writhed perceptively. I couldn't be certain, but it didn't seem like she was trying to muscle out of my grasp but that she'd unintentionally responded to the suggestive movement of my hips. For all her denial, for all her teasing and refusal, her body wanted me as much as I did hers. It wasn't just the shower, my little sister was wet and I couldn't wait any longer. She opened her mouth to speak,

"Fuck you Oppa…uhhh…ooouwwhhhhh."

I'll never forget the sound she made when I first felt my cock slip into my little sister's pussy. I don't think she believed that I was actually going to do it. But as I watched Tzuyu's head roll and felt her stand on her tiptoes to slow my entry, she obviously knew what was happening. And the feeling of Tzuyu's teen pussy wrapping around my cockhead was like nothing I'd ever felt before in my life.

It was so wrong, so taboo and so incredibly risky. My hard cock was finally inside my little sister. She had been asking for it long enough, but this time she'd thought I was too chicken to oblige. My hands were wrapped around her wrists at her sides, close enough to still squeeze her hips with my thumb and forefinger.

I grabbed right above her butt, depressing into the soft cheeks and I pushed her down from her toes. She came to rest with her feet flat on the tile floor and my tip an inch deeper inside of her.

I'm not cruel, I knew that she would need to adjust to me as she'd warned before and her wide eyes told me so again. This time, Tzuyu knew that I was in control. Yet, I was content to stand there, unmoving, as we both accepted the reality that we were finally committing the incest we'd been dancing around for days.

I wasn't going to speak first; whoever spoke first would lose this standoff.

I gripped Tzuyu's hips and arms at her sides. Slowly I forced her to bend more and take another inch and another inch of my cock into her tiny pussy.

"Ouuuwwww…Fuck Oppa…stop… oh it's too big… please."

I know it's awful, but for once I liked hearing her beg. With her whimpering as motivation, I stood up taller and continued the thrust into my naked and wet little sister. Her pussy was incredibly tight. It resisted me every bit of the way, but there was no mistaking that she was aroused. By the time I was ready to bottom out inside Tzuyu, she was putting up little resistance to keep me from bringing her backside lower so I could be buried inside her.

I thought I might climax immediately. Every inch of my penis was being snugly sheathed by Tzuyu's pussy. The thought that I was fucking her completely unprotected made me throb inside of her. I remembered her saying that she wasn't on birth control, and the added risk was only more motivation. The fact that she'd denied me so many times and now I was finally getting what she'd teased without her permission was even better. I wanted to simply fuck her, cum inside her and break all of the rules at once.

It was then that Tzuyu revealed the last, unknown piece of the puzzle.

"Fu…fu… fuuuuck Ke..Oppa." She cried with wavering words, "I'm a… ouhhhhhaa… virgin."

I couldn't believe it.

I knew she'd had boyfriends before, and all the teasing and playing… I'd just assumed she was a seasoned seductress. Now I wasn't just fucking my fertile little sister without her consent, I was taking her virginity too. I knew that nobody in the world had ever been so lucky, so aroused and so ready to fuck their little sister in earnest as I was at that moment.

It all made sense now, why Tzuyu wasn't on birth control, why she kept talking about how big I was despite that I'm certainly no pornstar, and why she'd teetered so close to the edge without letting us go as far as we now were.

"Is that why you wouldn't let me fuck you Tzuyu?" I asked her, she turned her face away.

Slowly I removed a few inches of my cock from inside her before steadily sliding it back in. "Ouuuuuwahhhhh… fuckk Oppa… fuck you…you're fucking… ughhh…raping me."

"You knew you were doing this Tzuyu…" I argued, "And you just kept teasing and teasing."

Ever so slightly, I felt her little butt jiggle against me. Perhaps it was a reaction to feeling her first cock inside of her. Her hands were no longer fighting to be free of my grasp, though I didn't risk letting them go.

"Try not to be so tense sis, you'll make it hurt.."

I didn't expect my little sister to comply, but in a few seconds I could feel her insides loosen their grip on me. It truly seemed like she was going to allow me to continue.

Again I fucked her from behind. She felt absolutely wonderful like that. Her height, the smoothness of her skin, the way her back arched just right so that when my hips met her; she was every bit as perfect as I'd dreamed. As I once again shoved my cock into her, hard, I met resistance and knew I was all the way buried to her cervix.

"Fucking dick… uhhhh fuck…oh my God… you're such a fuuuuhhcking asshole!" she said through my next two thrusts.

"What's that Tzuyu," I asked sarcastically, "you want it in your ass?"

I know I saw a smile across her face at my humor, but she quickly concealed it. I had no intention of being anywhere but my little sister's virgin pussy at the moment, but I loved seeing her adorable smile amongst her insults.

I chanced to let go of my little sister's hands; knowing that she might use her newfound freedom to escape. I guess I just thought that I'd already done enough and she deserved to at least have some dignity back. When I let go, I could see her thinking hard about what she would do. I immediately grabbed her hips to hold on tight and keep fucking her as it might have been the end of my chance to do so.

But what happened next was absolutely amazing. My hips slapped against her pretty butt and I watched in awe as Tzuyu slowly lifted her hands to the wall. She pushed away from it, but only enough so her breasts hung free and her head was able to move as she pleased. My little sister was going to willingly let me fuck her from behind. I depressed my thumbs into those tantalizing dimples she had in her back and humped her like I'd only dreamed of doing.

And that wasn't all. After a few thrusts I finally got my hands on her perfect chest. I cradled each breast and then squeezed them firmly against her to continue to fuck her as I had been. My fingers found her nipples and I pinched them, hearing her moan immediately. I guess that was a lot for Tzuyu, and the feelings of having me inside of her for the first time were bringing her to new heights.

"Ahhhhhh… oh fuck Oppa… I… ohhhgod… stop I'm gonna…"

No way. No way was I going to stop. I only held her tighter. She was holding herself from the wall with one hand and trying to fend me off with the other. She was hopelessly uncoordinated in her attempt, and each thrust only made her motions more desperate.

"Oppa don't…ohfuckkkk… Oppa… Oppa… please…" she said. Tzuyu didn't know what she was begging for; I knew she'd never felt anything like she was about to. I couldn't stop. She had to experience what I had built up inside of her.

"Ohhh please brother…pleaaaase.. oooOOOUUUW."

She was the most beautiful thing I'd ever laid eyes upon in that moment. I held her as best I could because I could see her knees giving out beneath her. My hands wrapped around her chest and midsection; my hips continued grinding into her.

My little sister quaked and tensed in my arms. Tears formed in her eyes as she was overcome with feeling. She grabbed at my encircling arms and held them tight. Her nails dug into me until it hurt. Her head lolled back, her graceful neck so close to me that I could smell the remnants of her perfume. Her lungs were filled with the breath she had taken and been unable to expel until the numbing climax released its hold on her. I held on to that beautiful young girl so tight that our bodies were melded together in passion.

Her tunnel squeezed my cock with such ferocity it was almost painful. I could feel her walls rippling as her body revealed to her for the first time what made sex something she'd never be able to go without. And still I just held her. I'd gotten into the shower, penetrated her for the first time and even fucked her into a mind-numbing orgasm without her permission, but I would keep her in my arms, despairingly hopeful that she might forgive me when she came back… that it would all have been worth it.

She did, eventually, regain herself. I could feel strength returning to her limbs. Her panting breaths got deeper, and her nails finally disengaged from me. I'd stopped moving my hips because once she had reached the height of her orgasm I knew she would be incredibly sensitive; Yet, I was lodged as deep as her tiny frame would allow.

The only sound at that point was the constant drone of cascading water. I could feel Tzuyu's little body struggling to take enough breaths to fully recover; her vulnerability was adorable. I didn't mind either, because I took the opportunity to continue lightly massaging her breasts. The first reaction I heard from my little sister was a giggle when I took both her breasts in my hands from behind her and playfully jiggled them against each other. They were simply the perfect size, and I wanted to duplicate the motion I'd seen so many times when they'd been hidden from me in one of her push-up bras. I couldn't help myself, and my little sis seemed to appreciate my admiration.

To my dismay, Tzuyu reached back and put her palms on my hips. With considerable effort, she pushed me away and stood up as tall as she could, sliding my swollen cock from her slowly. Each exposed inch felt cold and uncomfortable when not secured snugly inside my teenage sister. I worried, as my cockhead finally emerged from Tzuyu's tiny opening with the faintest sound of suction, that I'd never get back in.

Now it was my turn to hold my breath. I was hard, longing to finish our incestuous tryst inside my little sister and anxious about what she might say when she turned toward me. At first she didn't look at my face, only down where my staff was pressed against her abs as she turned. It was as if she was staring in wonder at the culprit of her wonderful orgasm, her brother's cock that had invaded her untouched pussy and forced a climax on her.

When she did finally look up, I saw on her face no blame or disappointment. She could have said something to confirm it but when she stood on her tiptoes to kiss me I knew that she'd embraced what we'd just shared. Tzuyu's hands were more aggressive than ever as she reached out for some way to hold on to me as her lips and mine were joined. I felt my cock slip into the incredibly wet cleft between her legs.

"You bastard…" she said with a smile as I tried to prolong our kiss when she pulled away.

"What?" I asked with feigned innocence.

"I can't believe you just did that!" my little sister continued.

"Did what?"

"Well, for starters you took my virginity, and you fucked me without a condom on…" she said with raised eyebrows. "Not to mention you basically forced yourself on your little sister when the rest of our family is like 50 feet away."

"The door's locked," I said with a shrug, "I think…"

Tzuyu hit me on the chest hard and laughed aloud, "You are the worst!"

She looked so pretty, naked with the shower running on her taut little butt and leaning against me. I pulled her tight and could see that her face was still flush from her orgasm minutes before.

"What's the matter, are you worried they heard your big brother "force" you to cum?" I asked while making the quotes motion sarcastically.

"Oh fuck you," she said and then she surprised me with another hungry kiss. The sudden motion pushed me back so that the tiled ledge behind us took out my legs and I fell with a soft 'thud' to a seat there. Without missing a beat, my little sister was straddling me with her back arched athletically.

"I guess I knew you'd snap eventually," she said quietly, in between kisses, "I just didn't think it would be like this…"

I felt Tzuyu searching with her hips slowly for the path of my member, and finding it she whispered, "I'm glad it was."

I was enraptured by the little brunette. My conscious brain was still struggling to accept that I'd just fucked my little sister and watched her cum during her first time. It was far more difficult with the petite eighteen-year-old slowly grinding on my cock. I wanted to beg Tzuyu to take me back inside her, but she wouldn't release my lips yet. Feeling her slit and the opening to her young quim so close was torturous. When she finally did stop to look into my eyes I said,

"So…are you going to show me what all that tight workout gear has been for," my little sister's mouth was already agape as she listened, "or are you gonna just pretend to fuck me while you're up there?"

I knew Tzuyu too well; she could never resist a challenge.

She quickly lifted her hips to position herself, but I could see she was nervous as she held me right at her opening. I lifted my hips up toward her without thinking, causing my tip to prod and then enter her before she could react. Her body jolted and she lifted higher to remove my head from inside her.

"It's really big," she said with big eyes pleading for approval. "I didn't have time to worry about it before."

So I decided to help her… a little. I grabbed Tzuyu's hips firmly and pushed her downward. She must have allowed it, to some degree, because I was able to get her to take almost half of my cock into her tiny channel with one steady push.

"Ohhhh fuck…" she cried, her hands scrambling to mine upon her hips, "God damnit, I shoulda…ughh…shoulda known you'd do that."

Her face was absolutely beautiful as I watched her come to rest with me buried fully inside her. I hope to never forget the way she gasped when I was as deep as I could go.

"You feel so good sis," I told her as I pushed my hips firmly against her, "you are so incredible Tzuyu…mnnnhh… and so freaking tight."

She smiled through a scrunched, focused face and hugged me, kissing my neck when she got close enough. She was still adjusting, which made sense having been a virgin only minutes before. I was content to hold her and feel her body against mine until she lifted her hips off and tried again.

"God…mnnhhhhh… I can't believe it fits in me." Her voice was mesmerizing to me. "You can't cum in me, okay?"

"Why not?" I asked, hoping she'd change her mind.

"Because," she said without much conviction, "because I could get pregnant."

I'm not sure why exactly, but the thought of cumming inside my little sister made me more aroused than ever. I grasped her hips as firmly as I could and helped her along the path of my cock. To my surprise. Tzuyu began rotating her hips in small, front-to-back circles like she'd done it a million times before. I don't know why I was so shocked; I guess with her indescribable sexiness came a natural affinity for being the perfect little plaything.

"Fuuuck Tzuyu…" I said as her hips rotated into mine again.

"Hmmm… what's wrong Oppa?" my little sister asked with a giggle.

"uhhh, unnghhhh…does that feel good big brother?" She was really exerting herself as she said it, moving her hips amazingly up and down on me. Both of us stared in disbelief as my cock disappeared into her over and over.

My hands wandered all over her, fingers spreading as I touched her flat stomach and felt the bottom of her ribcage. Tzuyu had an arm around my neck to steady herself as she kept her hips moving and her other hand guided me to her youthful breasts. They were so soft and perky; her nipples were stiff and the perfect shade of pink to my eyes and plying fingers. I don't know if all teenage girls have a chest like my little sister's but in that moment I thought that Tzuyu's were the most beautiful tits I'd ever see. A couple times I cupped one and lightly licked her nipple. She tried to help me access her, lifting up until my cock was almost out of her. Tzuyu clearly liked it because she arched her back to help me take her puffy little nub in my mouth.

Tzuyu and I were both breathing heavily and she was quietly moaning into my ear as I held her breast and lapped at it. She took my chin aggressively in her hand and kissed me; her forwardness made me throb with desire. I couldn't believe how well my little sister was doing for her first time, and I only wanted more.

I think Tzuyu could tell by the look on my face that I was really affected by the way she was grinding on top of me. She slowed.

"Are you getting close Oppa?"

I didn't want to change anything about the way we were fucking each other. I lifted my hips to maintain the speed she had established with her own. "Ohhh Oppa… fuck that feels…uh…uhh…good! Are you gonna cum soon?"

"Yes… keep going Tzuyu!"

"Unhh uh," she denied me.

Even though I tried to hold my little sister on top of me, her skin was slippery and slid from my grasp as she gracefully lifted herself from me and my cock abruptly popped from her quim. I cursed as she got to her feet and left me sitting there, deprived of my orgasm.

Again she could tell from the look on my face that I was disappointed. She tried to console me as she stood up and leaned in to kiss my cheek and the corner of my mouth.

"You know we shouldn't Oppa, I told you I wasn't on birth control and we could get in so much trouble." She said with those pleading eyes I loved seeing so much.

"I know Tzuyu," I said, placing both hands on her hips and forcing her to lean against me "and I still want to."

If she was intent on subduing my desire to continue with our incestuous sex and fully consummate the act, she wasn't doing a great job. Even as she tried to talk me out of it, Tzuyu had taken me in her hand and was using the fluids that she'd left on me to slide up and down on my cock. I flinched because I was still close to my climax

"That's bad Oppa… I'm in the middle of my cycle and you still wanna come in my pussy… in your little sister's pussy?"

I only moaned in response.

"I wonder what it feels like," she said, working her hand on my tip and leaning in so I could feel her breath on my ear. "I wonder what it would feel like if you squirted all your sticky cum inside me?"

"Fuck Tzuyu," I swore as she teased me.

"But we can't…" she said, never stopping the movement of her hand, "if you did… if you picked me up and fucked me right now… until your big cock squirted all your sperm in me…"

"Tzuyu, stop…"

"You could get me pregnant, you can't get your little sister pregnant…" she said unrelentingly, "what would mom and dad do?"

I couldn't take it much longer. My naked, teenage little sister was too tempting and her words were giving me visions of her belly showing the signs of our incest.

"If they knew my big brother had cum in my pussy, without any protection…

Oh God that would be so naughty," she whispered while her hips thrust her needy mound against my thigh. "fuck, uhhhh."

It was the adorable sound she made as she spoke that forced me to act.

I grabbed her, hard, standing up from my seat and wrapping an arm around her like a naughty child. I swiftly shouldered the shower door and brought her out into the room. On the floor was a furry looking bath mat: the place where I was going to finish with my little sister.

"Wha…what are you doing!?" she asked as if she didn't already know.

"You know what I'm gonna do Tzuyu…" I said with hungry eyes as I laid her on the ground with a thud. I watched her beautiful tits shake and marveled at her young body laid out for the taking beneath me.

"I'm gonna fuck you like you've been asking for…" I was bound by an animalistic drive, "and then I'm gonna cum in that tight little pussy of yours."

"No… Oppa… I" she stuttered, she looked nervous and cute and I was a million miles away from stopping. "I was just being mean… I didn't think you really wouuOOUUUuHHWWW"

I had kneeled at her entrance and pushed my tip into the tiny slit between her lips before she had even begun to protest. There was no chance her words could reach me now.

"Ouhhhh fuuuck Oppa," she tried to yell, but I covered her mouth with my hand. I didn't want our family to interrupt this last thing I had to do if they heard us.

Tzuyu tried and failed to push me off with both hands on my chest as I slid my cock into her in one steady stroke. Her mouth opened wide and she let out a muffled cry into my hand. I took both of her tiny hands over her head in one of my large ones and weighed down on them as I leaned over her.

Her look was a combined one of dismay and pleasure simultaneously. She tried to wiggle free but only succeeded in stimulating my buried member further. I released my hand from her mouth, her eyes begged me to let her speak.

"Ughhhh… fuck you!" she spat as I thrust into her roughly. Her petite body below me was mesmerizing to watch shake each time our hips connected, "Fuuuuck… ouuhhh owww… I hate you!"

I don't know why I thought it would be a good idea, but I leaned in close to kiss her. Tzuyu let my lips connect for a second and then bit my lip. I tried to pull back but she wouldn't let me go. So I forced my hips even harder against her; my tip found my little sister's cervix and prodded it roughly.

She released her hold on my sore bottom lip and gasped. "Ohhh goooddd," she breathed, "Uhhhfuuuck…"

I daringly darted my tongue to flick her lip as she was distracted. She didn't pull away. I slid my cock out and back into her again, and she let me press my lips to hers. She kept them pursed at first, resisting. So I thrust into her again and felt her jaw loosen. Twice more and she opened her mouth… and then we were making out, forcefully.

It was the hottest, angriest sex I'd ever had, and I was very near cumming in my little sister. I left her hands where they were, restrained above her head and grabbed on to her hips. I needed to hold her tiny pelvis as I prepared to climax.

Her hands stayed above her head for a moment, I could tell she was overcome by the feeling of being so roughly handled by her brother and still dealing with the relentless thrusts I was delivering into her. She looked up at me,

"Don't," she warned, her eyes fierce.

"I won't…ugh…" I said, "If you won't."

I had no idea if I could hold my end, but I was pretty sure that by the way my little sister's body was writhing and squirming in my hands that she would soon be helpless to stop herself cumming.

She darted her hands to my back and dug in, scratching me as I pounded her teenage pussy and desperately tried to withhold until she was overcome. As her fingers raked my skin I knew she'd leave a mark. It only made me fuck her harder, deeper. Her legs we wide and her hair was splayed out on the ground. With each drive, her whole body shook and she could do nothing to prevent her whining as I watched my little sister reach the edge and teeter with wide eyes upon me before she finally toppled.

"Ouuuuuuwhhhh oouuuhhh…" she howled, gasping for breath

Her thighs clenched around my waist and I could feel her heels on my buttocks. Instead of nails, I felt her tiny fingers holding onto my upper arms for dear life.

And then… blackness. I saw stars as I rolled my eyes back and buried into my little sister's vulnerable little pussy. I was glad she was holding me so tight because it grounded me as I began the most prolonged orgasm of my life. I felt my cock swell inside her, and my balls tightened to release the first flood of cum into the warm entrenchment of my little sister's quim. I listened to her squeal, knowing she sensed in as each rope of semen splashed her insides and searched to find the perfect path to her womb.

"Ohmygod…ughhh…I can feel…," my little sister breathed through her orgasm, I could hear the strain in her voice, "I can feel you cumming in me!"

I groaned with excruciating sensation as I withdrew a fraction of an inch and then mashed my hips against Tzuyu again, spouting yet another torrent of sperm into her fertile young pussy. Each time I did, I felt my little sister's body tense and her hands squeeze tightly. Seeing her climax was almost as rewarding as having emptied an incredible amount of seed inside of her.

I still held onto her body tight; the shower still ran relentlessly behind us, and for a few seconds my cock refused to stop emitting its incestuous contents into my baby sister. Even then, I knew that if there was any truth to what Tzuyu had told me, she could be pregnant by the very load that now threatened to seep out of her.

I had collapsed on top of her, still trying to hold myself up so I didn't crush my petite little sister. Her breaths were labored, and mine equally so. I could feel her hands gently draped on my back, and her breasts and midsection hot, damp and mashed against me.

It was an indiscriminate amount of time before Tzuyu rolled us over. I tried to help, but she did most of the work. My cock had refused to soften, so it stayed lodged inside of her as she came to straddle me in the middle of the bathroom floor.

Again, silence. Tzuyu halted in a prominent position, knees bent and surrounding my hips tightly. Her eyes were, at first, focused on the place where my cock remained stuffed into her teenage pussy. Our fluids were eking out of the tautly split lips at her opening. Slowly, my little sister lifted her beautiful blue eyes to me. I watched her intently and met her gaze without a blink or a word.

I knew that look; I'd seen it a million times before. She squinted at me and furrowed her brows, looking angry. I didn't flinch. She tried to glare more intently. But slowly, surely, her pursed lips gave way. She did this when she was trying to pretend she was mad at me but knew she was simply acting.

I took hold of her hips; her eyes following my hands. I could probably fuck the little brunette again right then, but I just wanted to give her a jolt. She was small enough that I could urge her up an inch on my cock before dropping her back onto me. I watched as her whole body cringed.

And then she broke out into a full, gorgeous smile before giggling, though she was trying hard not to.

"You…" she said with her big blues, "are a JERK!"

I laughed outright, "What did I do?" I asked with a drawl.

"Ha!" she scoffed, "Are you fucking serious?"

I just smiled at her. Tzuyu directed her eyes between us to where my manhood stuck proudly up into her channel. I was dreading the moment, but as we watched she began to lift herself up and off of my cock. It felt like it took forever, but when she reached my tip, she paused and looked at me again, knowing what we were about to see.

She freed my head from inside of her, and after a second or two, the white gleam of my sperm showed between her recovering pussy lips. After all the cum I had shot deep into her that was surely now making its way to impregnate her, there was still plenty left that dripped out onto my head and shaft which lingered just below.

"Oh… my… God!" she complained. "Are… you…FUCKING…SERIOUS?!"

Again, that adorable look on her face. I knew she'd be mad, but she couldn't hide her smirk. Some of her had to know that she'd been teasing me into a situation just like this.

"Do you always cum this much?" she asked with genuine curiosity.

"Hmmm…" I pondered, "nahh… only when my little sister's been a cock-tease for about a week."

"Fuck you!" She snapped back, "I should just tell mom and dad that you fucked me… no raped me in the shower and then came in my pussy without a condom or anything!"

"Ha-ha you go ahead, but don't leave out the part where you jerked your brother off while he was taking a nap, or the part where you…"

"Oh shut up!" Tzuyu interrupted, "I'm not gonna tell them anything, because then I'd have to tell them how I'm not gonna take the morning after pill either."

"Wha…" I started, unable to find words. I hadn't thought it through, I might have been turned on by the thought of getting my little sister pregnant, but I thought for sure she'd be against it. I'd filled Tzuyu up with cum without really considering it.

"You heard me, it's, like, terrible for your whole body and I'm not fucking taking it." She said confidently. Then her face changed a little; she bit the corner of her lip and spoke more softly.

"Plus, it makes me really horny thinking about my big brother getting me pregnant…"

My mouth was agape, I must have looked silly.

"You can close that mouth of yours big brother. You are the one who wanted to cum inside me so badly, now deal with it."

And she was right. I had fucked my little sister and spurted my cum into her with full understanding of the risks only minutes ago. And now that I really thought about it, I would do it again.

"Well, you little slut…" Tzuyu gasped and slapped me, I responded slapping her ass with both hands and leaving them there..

"I guess you won't mind then if I fuck you again!"

"Wait… I…no…" She attempted to say as I quickly grasped her and lined up her entrance with my cock. Before she could utter another word I lifted my hips and brought her down so my cock, covered in my overflown cum, was once again buried at home in the eighteen-year-old's pussy

I was overcome by lust, fueled by the thought of filling up my baby sister again, and roused by her defiant attitude and willingness to risk pregnancy. I sat up, bent my knees below me, and cradled Tzuyu's soft little ass in my hands.

She resisted at first, probably sore from the pummeling of moments before. But her walls were coated in our fluids and my cock slid more easily between them. Before long, Tzuyu was moaning again and complementing my strenuous effort to make love to her. I couldn't drive as deeply into her, but I loved how the two of us worked together to fuck each other like long-lost lovers.

"God I love the way you fuck me," Tzuyu told me.

"I could do this forever sis," I said as we stared into each other's eyes.

"Well how about you just fill me up again… uhhh fuck… for now…ouhhhh…I wanna feel you cum inside me again!"

Like before, we kissed and then made out arduously. My palms stayed locked onto her plump backside, I could tell she was too weak to stay up on her own. And fortunately, before long, I felt the familiar tightening deep within my groin and the following jolt of sensation that would couple my orgasm.

I don't remember if Tzuyu came. I think she did, because I remember her whimpering, practically sobbing as I urged my cock snugly inside of her. As if I had not already done enough, I began adding yet another surge of my forbidden semen to my little sister's laden pussy. It gushed forth and Tzuyu whined as she felt it splatter deep within. I came so hard for the second time that it hurt, and when I was done I nearly tossed my little toy aside for I could hold her no more.

She panted and laughed at the same time, and I watched her as she laid out on the floor. Her opening, outer lips, and the tiny channel within were soon shining with the unruly cum I'd spent into her. Her beautiful body shimmered with sweat and her breasts heaved up and down as she tried to catch her breath.

I heard Tzuyu laughing; she was as shocked at the whole experience as I.

My little sister… laid out… untouched until I'd gotten in the shower with her… and now, if fate would have it, filled twice and made pregnant by her older brother's semen…

I struggled to catch my breath too, and eventually I laid down beside her and took her in my arms. I have no idea how we got so lucky that nobody had come to find us. I'd later find out that our family had been in the pool and nobody was willing to get out and call us down. For if they had, the state they would have found us in would have been… dramatic

"Well that was… interesting." she said when she'd finally come to.

"Just interesting?" I asked

"It was a lot of things Oppa," she continued, "a lot of things I'd like to do again."

I leaned in and kissed her, long and slow.

"Whatever you want little sis, though, maybe we ought to be a little more careful next time."

"Where's the fun in that?" She asked with a naughty smirk.

After that we showered together, playing and touching each other and watching as my cum leaked down my little sister's leg. A couple times she tried to hold the fluid inside of her that kept making its way out, but it was no use. I told her I would love to fuck her again, but she begged me not to as she was too sore from the first two times I had. Instead I simply played with her entire body and we stayed within inches of each other for the duration of the shower.

When we were done, Tzuyu wrapped a towel around herself and peeked out of the bathroom. She checked up and down the hall before whispering to me that the coast was clear. She didn't have an extra towel so I was stark naked, and before I sidled out into the hall, I snagged the towel from her and pinned her against the wall at the entrance to her bedroom.

I kissed her, and she kissed me right back. I held her tight, and she grasped me like she'd never let go. My erection threatened to go right back where it belonged as it poked between us, and she giggled as it prodded her below.

"Get out of here!" she warned.

"Alright alright," I said regretfully.

Of course, I pinned her one last time against the wall and put a hand on her breast and one on her butt while stealing one last kiss. I held her tight as I took her in for the last time in however long it would take to be back at her side. Her tongue lingered beyond her lips as I pulled away and left her wanting at the door.

Just as I made it to my room I heard our father call. "Kids! What the heck are you doing?"

I yelled something about being right down, and he just assumed we'd been texting in our rooms or something of the like. Before I went in the door, I saw Tzuyu step halfway out of her door, daringly, and put one arm over her breasts while biting her finger and one over her pussy. The pose was something out of a dream, and I'd spend every minute of that day remembering it until I found myself once again fucking my little sister senseless.

When we came back downstairs, our family was none the wiser. I watched my little sister swim around playfully and chat with our family, knowing that her little pussy was still filled with my cum, her big brother's cum, even though she was still acting like her usual, innocent self.

"What were you two doing up there?" my mother asked.

"Just taking a quick nap and a shower," Tzuyu answered, smiling my direction when she knew nobody could see "I needed to rest up and get ready to take my big brother like I said I would."

I couldn't believe my ears. I just nodded and acted disinterested; how Tzuyu was able to lie like that, knowing the truth and hiding it perfectly, I just do not understand.

"Think you're up to the challenge after dinner Oppa?" she asked me, "cuz' I'll be ready for you."

I mumbled something and flashed her a very concerned look when she stopped egging me on. She smiled and gave me that naughty look again, knowing that I'd be fucking her senseless just like she was asking me to right in front of our family like it was no big deal.

If only they knew.

I have no idea how long our secret can stay hidden, but I can't help myself around Tzuyu anymore. She's even more insatiable than me, and our dangerous behavior has only gotten worse since we first started up. But, I don't regret one bit the day I decided to be lazy and take a nap in my little sister's room rather than mine. I love Tzuyu more than anything else in the world, and I know we're both glad that we finally became more than just brother and sister on that day. Someday, maybe soon, we both know what might happen: I'll sit by her side and help explain how happy my little sister and I are together, and why we're so excited to be adding another member to the family…when that time comes.

Until then, I'll be spending every minute I can finding out just how naughty my little sister Tzuyu can be… All because of a nap.

#twice tzuyu

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