hiieehie!! saw the kenma and was wondering if you could do big bro kuroo who’s smitten for his little sis? he always hold himself back until he couldn’t one night :3
hihii, absolutely! its a long one this time. i had tons of fun writing this one, even though i sorta struggled with the storyline. it felt like he wasn’t holding back enough, but i do hope you still love it nonetheless! :3
ㅤꨄ︎ big brother knows best - kuroo tetsuro
“Why’re you crying, hm? . . . You won, see?”
in which.. your bigbrother!kuroo has been holding in his obsession with you for too long. when you come to him asking for advice, he can’t resist manipulating you into giving him what he wants.
kuroo tetsuro x fem reader
warning: dark content not fit for all. i do not condone any actions written in real life. please block me if you dislike my work and feel uncomfortable! from this point on, you are responsible for what you read.
18+, mdni.
tags: ‘rape’ mention, dubcon to noncon, incest, obsession, domkuroo, subreader, bit of fingering and pussy eating, virginity loss (+ blood mention because of it), squirting, creampie, praise, loads of L-bombs, missionary, manipulation, possessiveness, reader is innocent/naive
enjoy! c:
I’m just kidding! - the three-word phrase had been branded into your mind all your life, and you could practically hear your big brother Kuroo’s voice whenever you thought of it.
Like a slick and smug cat, he never hesitated to provoke and tease you. He always stopped before he went too far though, because he knew that would hurt his little princess, and he couldn’t stand watching you cry while knowing he was the cause of it.
Tears of pleasure, however, were a different story. Oh, how he wished he could make that happen. He refrained from doing that too though, because that would ruin his image of the caring yet teasing older brother that he’d moulded with his own bare hands, and turn him into a horny freak. The only thing he cared about was being ideal in your eyes.
Kuroo had always protected you a bit too much when it came to other boys at college, or in general, for that matter. You could vividly recall more times than you could count on your fingers where you’d told him about yet another admirer or male friend crushing on you. He knew you couldn’t help it (after all, you were so cute and sweet that even your own big brother was obsessed with you), but it was impossible to mask the look of pure annoyance and utter disgust that formed on his handsome face at the mere idea of anyone having access to his girl other than himself.
He’d tell you daily to stay away from those perverts, that they were ‘no good for a perfect girl like you’ and how all they wanted to do was ‘take your virginity and run off with it’. Once, he even went as far as making you stay home from school when he caught wind of some loser planning to confess to you that day. All Kuroo could think of was how he had girls lined up for him too after his volleyball matches, but he didn’t give a fuck about them - and he wished you didn’t care about your brainless fans either.
As a matter of fact, he only wanted you making noise for him. His heart would swell up whenever he’d scan the scene to see you cheering for him from the bleachers, glitter all in your eyes and your adorable smile wide. All of a sudden, his exhaustion would disappear, because you were all the energy he needed. He always made sure to provoke his opponents extra and win the game, just to have you fawn over him later on about how he was the ‘coolest big brother ever’.
His sweet little sister who he loved the most. Sure, he could be overprotective at times, but he was the most affectionate person you knew! Consistently pulling you into his room for cuddles, or onto his lap to warm it up and keep him company while he played games with Kenma. Sometimes, he’d even make you watch movies with him for ‘quality sibling time’, but your silly niichan would always forget to clear his browsers full of nasty porn, and he’d laugh about it so loudly too..
You couldn’t help but notice that all the pretty girls looked just like you, too! Well, you were only able to see that since he’d take so long to take it off, giving you a few extra seconds of analysis that anyone in a real hurry to save face wouldn’t allow. You didn’t think much of it, though - every boy did that, right?
And his touchiness, it was his way of showing that he loved you so, so much; he said so himself. Whenever he’d smack your ass in passing and give it a squeeze, or kiss you on the lips for a moment too long - which he’d done so much that you now didn’t even bat an eye.
He knew you weren’t smart enough to notice how hard it would make him, anyway.
You were such a little dummy! No, that wasn’t the word he liked to use, since you were his sweet baby and all. Correction, you were a bit airheaded and a whole lot innocent, which made his subtle perversions achievable all this time.
It was just the norm; you needed him for everything that life threw at you, and he liked it that way. So, he accepted you with open arms like he typically did when you came running to his room in tears.
“Niichan!” You hiccuped, leaving the door ajar as you scurried over to where he was sat at his desk. He was immersed in some shooting game with Kenma, as per usual, but pulled his headphones aside to give you all of his attention the moment you called for him.
“Hm? Awh, sugar, what’s wrong?” He cooed, one hand reaching to pull you onto his lap by the waist while the other quickly muted his headset and paused his game - he ignored Kenma’s desperate yells from the other end telling him to ‘back him up’ or something. He had bigger fish to fry than ranked games. “Did someone hurt my baby sis? I’m gonna have to get my knuckle dusters out and handle ‘em..”
“Y-You don’t have knuckle dusters,” You pointed out between sniffles, settling on his lap facing him. Kuroo was so big - so tall and toned with a lot of lap space - so your feet rested comfortably on his gaming chair right beside his muscular thighs. Thank god for volleyball.
“Right.” He chuckled, nodding his head and stroking your hair gently. Even when you were all upset, he found it so cute - you ran to him like a little pet in need of coddling. “You gonna tell me why you’re being a little crybaby, though?”
It was so embarrassing that you struggled to spit it out, just looked up at him for a moment with those teary doe eyes and blinked. He raised his eyebrows and blinked back in silence. It seemed his question was more of a curious command.
“Well, because.. It sounds stupid, but like, I was with my friends, right?” You started, stammering on your words. Your hands clasped at your front and fidgeted with the soft sleeves of your shirt. Gosh, part of you wished you hadn’t said anything in the first place, because you knew that, if you stopped now, he’d never let it go.
That’s just how your niichan was; he had to know everything about you at all times, no exceptions…
Kuroo nodded his head to encourage you as his large hand that had been petting you moved to your cheek and wiped your silly tears. “Right. And?” He pressed a kiss to your forehead with a soft hum, probably sniffing your lovely, perfumed scent too.
“And we started talking about, you know.. sex and stuff.” Talking to your big brother about this stuff felt so weird, so you looked down at your legs shyly to avoid eye contact with him. “They were all saying how they’d done it already, and I was so stupid - I told them I haven’t.”
“Then they giggled at me and said I was missing out..” You admitted, glancing up at Kuroo cautiously to gauge his reaction. Half of you thought he’d make fun of you for crying about something so trivial, maybe even get in on teasing you for being a virgin too, but you didn’t have it in you to hide anything from him, nor the capacity to handle anything on your own.
Unbeknownst to you, the inner turmoil that Kuroo has been battling for ages was about to rear its ugly head, and your words only inflamed it.
God, he’d been waiting for exactly this - for the day that you’d come to him needing advice on sex. He knew his little sister was the most innocent girl he’d ever met, and he was to thank for keeping you that way.
He never stopped conditioning you. Never stopped baby-talking you, protecting you from the world, taking care of you - all to keep you absolutely clueless and completely his.
In Kuroo’s mind, he had to be your first everything; it was his job as your one and only big brother. He’d taken your first kiss ages ago while helping you out with your maths homework, told you “Well done, sweetheart.” when you got a question right. It was the bare minimum, and he was honestly just in search of any excuse to have his lips against yours, but the positive affirmation worked - it made you hold back on questioning it even though that shy confusion that he loved so much was written all over your face.
Since then, he kissed you more and more until you even started to do it back. Fuck, he loved training his pretty princess, but surely he couldn’t steal your first fuck too, right?
He almost did. He got so close. A day where the two of you were home alone watching another movie in the living room and you got up to grab a drink awkwardly during a sex scene. You were taking a while, and he got up to come and check on you.
What he didn’t expect was to get to the kitchen door and see you bent over, searching for strawberry-flavoured snacks in a low cabinet. Something primal within him saw it as an invitation, was about to make him pounce on you and take you deep before he could stop himself, but you got up with the stash in your arms and smiled at him so sweetly that he couldn’t bear to indulge in his forbidden fantasies just yet.
It took everything in him to smile back, to hold in all he wanted to do to you even as his dick grew painfully hard in his pants.
Soon enough, he’d end up snapping.
“What’s wrong with that?” He cleared his throat, rubbed your back and pulled you closer on his lap - unconsciously, his body figured that a little pressure on his hardening cock could help him contain himself. It was deviant, but it was his method, and it was better than having you cockwarm him instead. “Sure, you’re a little late on it, but who says you can’t be a late bloomer? Besides, I like it this way.”
You hummed in response, not completely convinced. It just felt so dumb; by now, you should’ve done at least something naughty and fun. Being young and free was part of the life experience no? Plus, there was no way you’d stay pure forever just because of Kuroo’s irrational fear of other boys.
“I know, but I just feel so silly about it in front of my friends.” You mumbled, shrugging your shoulders some. Hell, you knew that Kuroo had probably done it all - he was too popular to not have, and your niichan knew everything in the entire world anyway. That’s why you came to him, after all. What you didn’t know was that he thought of you every time; it was impossible for him to think of anyone but you. “I have to do it before they ask me about it again, to still look cool and stuff...”
You didn’t mean that, Kuroo knew you did mean that - you’d chicken out immediately - but, he simply couldn’t pass up on the opportunity to be there for you when it had just slapped him right in the face. What kind of man would he be to leave a damsel in distress?
He gulped. He shouldn’t, he really, really shouldn’t. You were asking for it though, even if you didn’t realise that - come on, you said yourself that you had to do it.
“So, what I’m hearing is you need it gone? Well, that’s what big brothers are for.” He implied, his voice lowering with a hungry yet cautious undertone. You were so invested in your resolve that you couldn’t even focus on the big, hard thing in his pocket that was suddenly pressing against your inner thigh. “You know, you haven’t done it because you couldn’t, baby. You had to save your precious virginity for me because your body knew it needed me.”
“For you?” You were gullible enough to believe him, but his words seemed… naughty. The thought of having your first time with Kuroo made your body heat up with an unfamiliar fluster, and he detected it immediately when you squirmed ever so slightly in his lap. It sent a wave of arousal through his dick, and he amped up his coercions heedlessly.
God, his words were all spilling out. It was manipulative and wrong of him to be taking advantage of your innocence, but fuck, he needed that innocence all to himself.
“All for me. Don’t you wanna make niichan happy?” He affirmed like a snake, his hands coming down to rest on your hips and rub your back. “It’s my job to make sure you have a sweet first time, ya’ know. Any of those other boys would just use you and abuse you, how could I let that happen?” Yeah yeah, he’d told you that time and time again, and it sure did work as a deterrent.
“I don’t know, Tsu..” Sure, you had been complaining about it, but you weren’t sure if you were ready. You trusted Kuroo with your life, and that gentle smile on his face settled your nerves some. It made sense, no? Of course, your big brother would treat you so nicely - he’d take such good care of you that it probably wouldn’t even hurt…
It had to happen before you ran off to some prick that wouldn’t even fuck you right. All he was doing was fulfilling his duty.
Kuroo quickly shut off his PC, leaving Kenma for dead, and turned to you again. “It’ll be fine. You trust your niichan, right? It’s our new game.” He was already lifting you up with an old man-ish grunt before you could respond, walking over to his door and shutting it before heading to his bed with you in tow. “It’s only us at home anyway, we have all the time in the world to play..”
You mewled softly in subtle protest, but didn’t exactly tell him no. Even as your heart raced, you held onto his shoulders instinctively. “But, I don’t think we can-”
“Here, if you make my yummy cream shoot inside of your princess parts, then you win.” He smiled at you as though his words were totally normal and laid you down on his mattress, the scent of his cologne and natural musk wafting around you. “Doesn’t that sound fun, baby? Let’s play, I can help you impress your friends..” His strong body slipped between your legs and kept them spread for him.
The game rules were so direct; how could you do something so dirty right in front of your big brother? Still, you’d run to him for help with anything else, so maybe this wasn’t so different…
“Alright, but.. be careful, ‘kay?” Your voice was barely above a whisper, but Kuroo locked in the agreement that he’d worked so hard to coax out of you immediately.
You’d have asked some more questions first if he didn’t start groping your breasts so suddenly, pulling a gasp from you. “W-Wait Kuroo, what’re you doing?” Your smaller hands instantly moved to push at his, but he didn’t budge an inch - of course, he was so much stronger than you that it didn’t even feel like a poke.
“Playing. What does it look like I’m doing?” He couldn’t help but glance down to see your oversized shirt, one of his that he hadn’t seen in a while, riding up to expose your little panties. “Teddies? Seriously? So cute.” Kuroo teased, shooting you an amused look before reaching down to touch them too without a second thought. “And there goes that shirt I was looking for, too..”
“S-Stop, Tsu,” You whimpered in embarrassment, wiggling against his prodding fingers as they rubbed your sensitive little clit over the now damp fabric. It was an unfamiliar feeling that made your core tingle deliciously - so wrong but so right.
“I need to, sweetie.” He mused, a crazed look in his eyes. He looked needy, looked almost feverish as he leaned his large frame down to huff at your pussy, then stuck his tongue out to suck on it.
Kuroo groaned deeply as if your juices were an aphrodisiac, unable to stop himself. He felt like such an icky pervert; all he could think was ‘I’m licking my little sister’s pussy, I’m eating my little sister’s pussy’, over and over again like a beast in heat and, for some reason, it only turned him on even more.
Two of his fingers slipped beneath the laced hem, teasing your slit before pushing in steadily. He moaned against the cloth as your tight hole resisted, but pumped them in and out to stretch and prep it regardless of what it wanted.
On the other hand, you were panicking already, your mind a whirlwind of pleasure and shock from the strange sensation of the tip of your big brother’s tongue nudging at your bundle of nerves and his fingers curling into your spongy spots. “Niichan!” You whined weakly, so flustered by the immense amount of wetness leaking out of you.
“Mm, yes sweetheart?” He cooed at you with a voice as sweet as honey as he pleasured you. It was all he’d ever dreamed of, and he was having the time of his life watching you twitch beneath him so helplessly. A piece of him loved that you couldn’t take it - you’d be even cuter struggling to take his big, thick dick, and he’d go insane pushing it in anyway.
“T-Timeout, please Tsu!” A tingling pressure in your stomach was building rapidly, toes curling as he pushed his long fingers in knuckle-deep. “I feel something, p-please!”
Stars glinted in Kuroo’s eyes; he knew exactly what was about to happen. The breathlessness in your voice, your face scrunched up adorably, your little body shuddering.
Not yet.
Kuroo pulled his fingers right out and sucked your addictive juices off of them with a pleased grunt, smirking around the digits when you whimpered confusedly at the sudden emptiness. “Awh, you liked that? Only your big brother can make it feel that good.” He gave your vulnerable pussy a soft slap. “Come on, you can’t cum too soon.”
“But.. But that was the point of the game!” You pouted at him with a little attitude - you couldn’t understand why he’d stop. Your friends did say that you’d feel something strong about to rip out of you once you drew near the best feeling of your life. “I thought that was what we had to do..”
He leaned back, and you almost relaxed thinking it was over, until he started palming at your clothes desperately to undress you. You were his lifeline, he wouldn’t survive if he didn’t get to at least lay his eyes on you. “Shh, baby, you can’t - you wouldn’t be able to tell your friends you really fucked if you did.” He soothed as he pulled your shirt up over your head. His hands got right back to work when he was done, heading for your panties instead. “Just relax and let niichan play with you some more. I need it, m’kay?”
God, his cock ached at the sight of his little sister naked and exposed on his bed - the space closest to the wall was made for her, and he wanted to keep her trapped there forever. His palms trailed over your soft skin slowly, from your cute, perky tits to your pretty tummy, all the way down to your plush ass and your small, sweet little pussy. He was practically drooling, a soft moan slipping from his lips.
You watched him nervously, bringing your hands down to cup and cover your pretty parts, but he pulled them away with haste. “Mm-mm, none of that.” He tutted softly, spreading your legs to admire your precious set of untouched holes. Rather, untouched until he was finished with them.
His fingers dug into your thighs, and then your ass cheeks before he spread them to get a closer look. That tiny asshole winking at him, little slit leaking juices, both telling him to get inside. No, he couldn’t stop himself at all. “So cute, so fucking cute..” He gasped, his eyebrows furrowing. It was all too much for him. “Aren’t you just so sweet?”
Was he really about to do it? Mm, you wouldn’t even see it coming. He’d get drunk on your noises, on the way your eyes would roll back and you’d hit him so weakly while telling him to get out.
He could never hurt his sweet baby.. but that was why he prepped you, right?
You stared at him bewilderedly as he started to undress himself too, your eyes widening when he stripped down to his boxers and started to tug them down - this was the real deal. “Kuroo..”
He shushed you, pulling out his heavy, veiny dick and wrapping his fingers around it with a hiss, and the sheer size of it alone made your heart race in fear. Pre-cum beaded at the head of it, his tip flushed and twitching with need, just begging to be squeezed. “Look.. I need you, sweetie.” You’d never seen a pout on his lips before, apart from whenever he was mimicking yours, of course, but one sat on his lips as he shuffled in closer.
“W-Wait, Tsu..” Your voice was panicked, and that was all it took for him to know you were ready to back out - hell, he barely needed a moment to detect any emotion from you since he knew you best. Still, he crawled over you in a trance and pinned you down with his body, one hand sliding beneath you to hold you by your waist while the other positioned his tip at your slit. “Tsu!”
“You can take more..” Kuroo sounded more like he was trying to convince himself, but he ignored your rattled callings and forced his way inside of you anyway as a relieved growl rumbled from his throat. Fucking finally - completely raw without a stupid condom in the way, he could feel your resistant walls clamping down on his thick shaft while he split you open.
“A-Ah! Niichan, wait!” You gasped at the stretch of your taut hole getting breached so suddenly, body twitching against the mattress as your hands flew up to push at his shoulders. “Stop!”
“Mm, I can’t stop baby, I can’t.” The noirette crooned back, shaking his head no as he moved in deeper. Your little pussy was trying to shove him out, pulsing around him pathetically. “This tight little virgin pussy feels too good..”
He was balls deep in no time, his pre-cum coated tip nudging against your helpless cervix as you trembled and squirmed beneath him. “Tsu, I-I don’t wanna play anymore!” Your eyes were getting so teary already, eyebrows furrowed uncomfortably as your hymen reached its last legs.
“Shh,” Kuroo took no note of your pleas, knowing it had been a long time coming; he was already so deep inside of you, and his inhibitions had been released ages ago. The battle of morality no longer concerned him. He just grabbed onto the back of your knees with his strong hands and pushed them back, folding you in half to keep you nice and stuck. “Be a good girl f’me, don’t fight your big brother.”
The new position allowed him to thrust in further, and he pulled his hips back and forth slowly at first to let you adjust, and also to savour the feeling of finally sinking into his little princess’ warm, slick hole. “You did this to me, sweetie..”
“N-No, that’s not true..” You hiccuped at him, tears streaming down your cheeks as your voice jolted. The feeling was too overwhelming, and you shuddered so cutely when his heavy cock’s pumps made your cherry pop.
“Fuck, yes it is…” Your big brother groaned when he felt a small trickle of your virgin blood wet up his big dick even more, marking you as his forever. “You make niichan so hard every day, and now you’re all mine. Needa help me get rid of this…”
Knowing it was him who got to be your first made him hot, and he picked up the pace and force of his thrusts, taking you hard and fast.
You gasped at the overwhelming stimulation, your previously pushing hands resorting to full blown scratches at his arms and back - he’d love to stare at the evidence of his claiming in the mirror later on. “M-Mngh! Please stop, niichan!” Too cute. Kuroo just stared down at you as you tried fighting him off, watched as your body betrayed you and failed to resist his god-tier fuck. “I’m sorry, I-I didn’t mean to!”
He didn’t care that it was wrong anymore - not when you looked so pretty crying beneath him and it felt this good to pin you down and fucking rape you. Something was taking over him, something telling him to ruin you sweetly and stuff you full of his cum too. Yes, he knew you were too little and far too delicate to be getting fucked like a cheap whore, and he leaned in to kiss your face all over so that you knew your big brother still cherished you above all.
“Oh, good girl, sugar, apologising like that.” Kuroo chuckled, hearts forming within his eyes. He was so fucking in love with you, so obsessed with his little sister that he just couldn’t get enough. He used all his body weight to keep you down and make you squeak beneath him like a caught prey bunny. Not a chance you could fight off a big, bad wolf like him.
“Tsu-nii!” You cried out, your small body bouncing back each time his hips collided with yours. A light sheen of sweat coated both of your bodies and, combined with your sloppy pussy, it caused loud, suctioning smacks to fill the room.
He didn’t stop even as you cried and pleaded with him, apologised repeatedly, hit him and all. He didn’t budge an inch.
In what Kuroo saw as one of your little tantrums, you tried to squirm away and inch your body up enough to pull yourself off of his long dick. “Look at that little pussy tryna escape..” A firm, sharp spank to your thigh got you right back in check, a whimper escaping your pouty lips. “You asked me to teach you, and now you wanna run away?”
“Don’t you know I’m only doing this because I love you?” He pulled your ankles over his shoulders and hoisted himself up before setting a merciless pace and pounding into you.
Since you wanted to act up, he was going to use your pretty body for his pleasure.
As if something inhuman was controlling your body, your back arched up and you couldn’t hold in your helpless moans and whimpers. Kuroo knew he’d found your sweet spot with you angled up like this, and he targeted it as your walls only clenched tighter. “N-No! ’m sorry, Tsu, please s-stop it!” You cried out, shaking your head no.
Your flailing hands became too weak to continue their futile protests - the forced pleasure was taking over. Toes curling, your eyes rolled back and your pussy leaked. Kuroo’s poor little princess, getting such an intense orgasm pulled out of you.
“O-Oh, fuck, you love it..” Kuroo moaned as his eyes glued themselves to you. Your walls fluttered around his thick cock and milked it deliciously, coated it in your sweet little sister cream. He couldn’t let up - he fucked you through your orgasm until you were whining and squirting all over his cock and balls.
He was going to hell for this, for sure. He just couldn’t hold back, you were a sight to behold: his obsession finally marked as his alone, making such a mess on his cock.
God, he needed to fill you up.
He threw his head back and growled as the hot, thick ropes of his cum shot inside of you, moaning right after in an uncontrollable fit of pleasure. There was so much that it flooded your aching pussy, stuffing you so full that it started to leak out past his plugging cock, oozing down to your asshole.
“Mm, niichan loves you so, so much, my sweet baby.” You just trembled when he wiggled his hips so as to not miss a single drop and collapsed on top of you to snuggle you, pouting at him with tear stains on your cheeks and his dick still warming inside of you. Fuck, you were so cute when you were upset at him like that.
“Why’re you crying, hm?” Kuroo mused softly, leaning down to press kisses all over your face and lips so sweetly.
“You won, see?”
a/n: aaa my second fic on here! i have more in the works, and currently one other ask to conjure up. stay tuned, and thank you so much for the support! <3
