凪 誠士郎 - nagi seishiro !
in which nagi wants to experience relationships, so he uses his little sister. smut, in/stepcest, dubcon.
nagi finds…relationship interesting. he sees his friends always kissing their girlfriends, holding hands with them, and talking about how good the sex is with them. he never really took interest in it as he finds it a hassle, but it wouldn’t hurt to try it out right?
but to get a girlfriend that’s…a process. he doesn’t really want to take the time to get into a talking stage whatever that means…or have to take them on dates for the first couple days. he’d have to talk to them everyday, hangout with them, and just put a lot of effort. what he heard from a friend...and it sounded exhausting.
so to make things easier, he just uses his cute little sister for this quick experiment!
pinning you onto your own bed, kissing you softly, but messy. he doesn’t know exactly what he’s doing but this is what he heard what boyfriend and girlfriends do. inserting his tongue in, tasting your insides as you struggle to keep up with him, your knee rubbing between his legs as he gripped your wrist tighter.
he gasps out, looking at your flustered expression. a string of saliva connected from his mouth to yours, as you tried to catch up with your breath.
“hmm. this is what couples do right?” he’d say, tone flat but curious. trailing his lips down from your neck to stomach. lifting the hem of your shirt up with his teeth, kissing your tummy. your breath shuddered and your body winced, you weren’t too sure what to do but you didn’t exactly back out also.
“n-nii chan…what are you doing—“ you squirm as his hands makes its way to your inner thigh, squishing the soft flesh.
“i wanna see. just be good for me ‘mouto.” he pulls the hem of your panties down, revealing your pretty cunt was that already dripping wet from that heated kiss you two shared. your body twitched when your clit was met with the cold air around the room, waiting in anticipation.
“mama and papa would be mad if they found out we’re doing this—!” you close your legs. he clicked his tongue in annoyance, something you rarely ever saw growing up with him. he forced them open, your cunt met with two fingers curling inside of your gummy walls.
“don’t care. just don’t say anything.” he’d thrust in and out, eliciting pathetic whines from your mouth. “it’ll be quick. i’m just prepping you right now. that’s what you’re supposed to do before sex y’know that?” he cocked his head towards you, listening to your pussy that ached for him. it wasn’t your fault! it was a natural reaction!
soon he’d pull down the hem of his sweatpants, his aching cock that was waiting to be put to use. “you should be loose enough.” he muttered. when you looked down, you were shock. why was it huge? was it usually this intimidating, something that should make you worried it might hurt?
you didn’t even register the stretch you felt when only his tip enter in your cunt. “ow ow! n-nii chan hurts!” you squirm and kick your legs.
ignoring your pleas, he shuddered. “s-shit…s’it suppose to feel like this..? so tight..” he breathed out, before slowly entering in, inch by inch. a small bead of sweat dripped down his forehead, feeling heat emitting. he took off his hoodie, becoming completely bare above you.
he only stared at your pretty face that contorts of discomfort, eyes glistening like you were going to cry. he felt a stop inside your gummy walls that fluttered around him and he looked down. “huh? only this much..?” he’s confused. all of his cock didn’t even go inside and he couldn’t push it in anymore.
you’re there clenching onto the sheets beneath you, almost wanting to scream from how much he filled you up already. he was splitting you apart and it hurts. he starts slow, grinding into you, feeling that burning sensation that made your stomach feel that knot already.
your little pathetic whimpers and whines filled your room as he lets out low grunts. “ahh…‘mouto feels so good. kiss me yeah? a good girlfriend does that.” he leaned down, pressing his lips to yours, tongue indulging in yours, sharing saliva with each others.
he feels your velvety walls tighten around him as he continued to do little thrusts into you, careful to not “break” you since he’s obviously so much bigger.
you didn’t even know you came, the feeling was just so intense and you were hurting. juices pouring onto his cock, a white ring forming around the base of his cock, hearing your puffy cunt squelching every time he entered inside.
“ah—you came? it’s so much..” he huffs out before grabbing the back of your knees, pushing it down till it hit your shoulder. the position hurt, and it definitely helped with getting the excess of his cock in, going into your stomach, and you felt like breaking, tongue sticking out involuntarily.
“n-nii chan hurts—hurts a lot!” you cried out but he only shushed you. the smacking of his balls against your ass filled the room, overpowering your whimpers.
he only fastened his pace, letting out loud gasps and grunts, the feeling of your walls felt so good against him, all warm and so tight. and since you came already, you were so sensitive. :(
“shit…coming…gotta pull out, ‘kay ‘mouto?” he thrusts himself in a couple more times, before pulling out at the perfect time, emptying his cock on you, cum splattering on your face, stomach and hair. so much came out it almost covered everything.
he lets out a sigh before pulling his pants back up. “feels good ‘mouto. keep playing as my girlfriend okay?” he brushed a hair behind your ear, kissing your cheek. you were too exhausted to move or talk. sight turning hazy.
hehe
tags ✎: @rinrinniebaby @theirlimerence @luvsymai @linics