tw: mention of incest role play, mention of fear kink, mention of cum inflation????, scummy gojo, also I have no idea how to word this????
gojo who gets paired up with you for a college project, and you’re fucking reeling for a few reasons. one being; he’s extremely attractive and damn near everyone on campus knows who he is. and also, you’re intimidated by his beauty and popularity, especially since you’re only known for giving out the answers when people ask nice enough in classes.
but he’s so…friendly, when you guys meet up to start on the project. he’s all smiles and helpful answers, bites at the people who come up to him and pretend you’re not even there. he listens to you with this dumb (cute) little look on his face, with his lips slightly parted and his brows raised and his white lashes peeking over the roundness of his glasses whenever he nods.
he’s kinder than you expected him to be. funnier, too, with his shitty jokes that you find yourself snorting at in the quiet library. and when you guys are finished with the project, he still keeps in touch. moves his seat to be next to you in class, texts you and asks you out to coffee, even invites you on a date after a few weeks.
and everything is perfect—until it’s not. until he beds you one day and it’s not as special or magical as you were anticipating it to be. he’s kinda…strange, in a sense, when he fucks you. oddly quiet, like he’s holding back, his hands just a little too tight, his eyes too focused on random parts of your body.
but you sleep with him again and again, until he starts becoming real comfortable with you. almost too comfortable, let’s how weird and strange and almost scummy he really is start to shine through, let the mask he’d be unknowingly wearing this entire time slip away.
“What if we were siblings?” Gojo asks you one night when he’s fucking your brains out. he’s gotten better over these few months, gotten looser and more comfortable. too fucking comfortable.
“Satoru, what in the ever loving fuck are you on about?” you ask him in a gasp as you reach a hand back to keep your head from hitting the headboard. but he’s undeterred, his eyes wild and unseeing as he grips your hips tighter, thrusts becoming sloppier.
“No, I mean in a role play way.” He explains, as if that makes it sound any better. “You know? You’re my sweet lil sister taking big bro’s cock so I won’t tell mom and dad about you sneaking out.”
“You’re a sick fuck.” you tell him plainly, frustrated that your tone doesn’t carry the same bite because his nimble fingers started playing with you at the same time. “Fuckin’ weirdo.”
“Incest role play doesn’t turn you on?” he asks, cocking his head to the side like a confused puppy that you wanna kick in the chin. “Maybe, hmm,”
he pretends to be lost in thought, thrusts slowing down and you let out an irritated huff as you slump back onto the bed. but your back arches up when his hips pick up pace again, suddenly slamming into you as he looms over you. one hand cupping your cheek, the other returning in between your thighs as he grins madly.
“Maybe you’d like some fear play, yeah? How’s that sound?” Gojo bends over you until his nose skims yours, his pupils entirely too tiny, makes your breath hitch in your throat. “Me, chasing you around the campus with a big knife, scared that I’ll catch you. You know I would, right?”
he forces you to nod with his big hand cupping your cheeks, pouting your lips at him as you whimper. he kisses you, breathless, chuckling a little under his breath as he mutters something incomprehensible, his cock carving its way deep inside you.
“Maybe even cum inflation? That one’s not the realest thing out here, but I could figure out a way to make that work. You’d like that, right?” he sounds like he’s off the deep end, like every single twisted thought that’s been running through his mind these past few weeks have finally come to the forefront. started spilling out between you two like a cracked dam, like he’s been bottling this up ever since you met him.
you cum only a few seconds after his last inquiry, scared of the way his smile widens, as if your body told him an answer he’s already known.
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wanted to write a lil something about big brother naoya... this is my first time writing anything kinda long in a WHILE so i'm proud of myself :') i needed the practice so be nice to me. who knew all it took was incest and piss LMAO also can u believe i used caps for this one <3
tw for incest and piss, themes of humiliation and degradation (mostly the situation, "slut" used once), female reader (she/her prns and petnames like "baby girl" used), naoya is his own warning and he's kind of a dick, maybe a little clan-relevant misogyny if you squint, fingering, naoya gets a boney but this isn't about him, not really proofread u get what u get, naoya has a shitty accent and it's inconsistent
word count: 2.5k
Half an hour into your big brother's tirade, you realize you really need to pee.
All your objections fall upon deaf ears, your big brother telling you to shut up, stay quiet, or fuckin' listen each time you interrupt his ranting to try to ask. It's pointless. So instead, you bow your head in submission, whimpering from the painful straining of your bladder.
Fuck, you need to go. You're not sure how much longer you can hold it, but it's not for you to decide. You know your brother – when he's this angry, he could keep berating you for at least another hour.
You interrupt him once more.
"Please, nii-sama, I've learned my lesson, okay? I'm sorry!"
Above you, Naoya scoffs, arms folding over his broad chest. “I don’t believe that for a fuckin’ second. First you humiliate me in front of the elders, now yer talkin' to me like I'm some kind of idiot? Is that what this is? You think yer better than me?"
It's been a while since you've seen Naoya this upset. Even with his short temper, your sister antics usually only leave him mildly annoyed. Your brother doesn't take it lightly when he feels embarrassed – even worse, undermined – and by his little sister of all people. His little baby of a sister that's meant to walk three steps behind him, bow her head, speak when spoken to. Yes, Naoya-sama. No, Naoya-sama.
"No, nii-sama," you're weeping shamelessly at his feet, your face hot and hands fisting at the skirt of your kimono, all while your bladder strains painfully. "Please, I'm sorry! It hurts, nii-sama, please let me go."
It's probably a matter of seconds now, maybe a minute at best. You're begging, silently praying to whatever Gods are listening that Naoya will take mercy on you and let you up, let you rush to the bathroom in a technique-imbued sprint so you can finally get a release from this pain. You'll even settle for pity at this point, because if you let go now, release your bladder right in front of your brother – all over the tatami, all over your kimono – you'll never hear the end of it.
Imagining the walk of shame to the nearest servant, forced to explain the mess you’ve made in the other room with a heated face and head bowed in shame – all while your big brother laughs – sends a chill through your body.
You don't notice your head fell until Naoya cradles your face, lifting it up to meet his gaze again. He's crouched to your height now, both face and touch uncharacteristically gentle when compared to... well, everything else about him. His palm is warm, yet rough from nearly three decades of back-breaking training and battle.
For a moment, you think you're lucky. Maybe Naoya is finally taking pity on you after seeing you tremble, your bottom lip quivering and eyes wet with tears as you plead for his mercy. After seeing you look weak in comparison to him.
"Hey," he coos, caressing your cheek with his thumb, wiping a tear and relishing in the way you keen into his touch. His baby sister. His sweet girl that's depended on him every day since birth, relying on her onii-sama to guide her. "You know I'm not doin' this to be mean, right? Yer just... gettin' too mouthy for yer own good."
"Naoya-nii," you whimper, voice breaking. "I can't hold it anymore, please."
"Yeah, you can," he sighs. "Dumb baby, just shut up a second and listen to me."
Another gentle hand rests on your shoulder. When Naoya holds you like this, it almost feels loving. He presses a kiss to your hairline, dampened with sweat from your body's exertion. You take a deep breath, trying to will the ache in your bladder to go away. For a moment, it does.
"If ya mouthed off to anyone else, they'd throw yer ass in the disciplinary pit, but not me. Is that why you do it? You know you can be a brat to me 'cause I won't beat yer ass about it? Tell me."
You nod shakily. "Yes, Naoya-nii."
"Look at me."
You do. Naoya's features look softer, kinder, more like the brother you love. The one that would gently push on your back to make you bow when you were young. The one that held your hand and snuck you out of the estate during the summer to show you the fireflies. The one that, despite threatening to leave yer ass out to dry when he catches you meddling in places you shouldn't, always takes the fall for it so you don't get punished.
But he can only do so much for you. For now, at least. When the old man inevitably bites it, making him the clan head, he'll be untouchable. Therefore you will be too.
The urge returns. How did you forget?
Naoya watches your eyes widen, your lips part in a stammer.
"Shh," he soothes, silencing whatever you're about to say with his finger over your lips, then replacing the digit with his own.
The kiss is soft, you try and distract yourself with the feeling of his lips, more assertive than yours, and his tongue softly prying you open. The hand on your shoulder ventures lower, smoothing over linen, fingers digging under your obi to loosen it in a practiced motion. Eventually, he accesses the ties to your kimono, loosening that as well until the fabric parts, exposing your body to him, ignoring your whimpers and pleas of protest.
It's not that you don't want him to touch you, because fuck, you really want him to touch you, you're aching for it. It's the throbbing pain inside that looms over your head in a constant reminder. You can't do this right now. If his fingers touch you, god forbid enter you, you're not sure you'll be able to hold it. The slightest amount of pressure and –
"Look at you," Naoya sighs, allowing himself to be swept up in lust. He kisses your cheek, your jaw, hair tickling your face as his lips trail down your neck and nip at the sensitive skin. "So fuckin' beautiful. My beautiful girl, aren't ya?"
Still, you're keening into his touch. The linen of your kimono hangs limp over your body, Naoya reaches underneath it and palms your breast, groaning silently against your skin. The hand cradling your face repositions, caressing your jaw before pushing two thick fingers past your lips, leaving you no choice but to accept them. You do it dutifully, allowing your brother to glide his fingers over your tongue, even hollowing your cheeks weakly around them.
Naoya takes and takes. It's no different when it comes to your body. The blood rushes to his cock, tenting the fabric of his hakama as it swells. His hands only get greedier, moans sounding more desperate as he gropes at your body, feeling your nipples harden under his palm, your skin so unbearably soft. He wants to sink his teeth in you, mark you in places only he has the privilege to see. He finds the warmth of your mouth so tempting, so inviting, he can't help but push his fingers deeper. You choke around his fingers, coating them in a rush of saliva.
"Open your legs," Naoya orders, hand now resting atop your thigh, both of them still clenched tightly together, attempting to push them apart. Your eyes widen in panic.
"Naoya-nii, I can't," you mutter, shaking your head frantically. "At least let me go first. I'll be fast, I promise–"
"Nah," Naoya teases, lips curling in a sharp grin. "Trained you to be a real good girl, didn't I? You can hold it a few more minutes."
"I can't!"
"You will."
Your body acts on its own, betraying your will and allowing your brother to manhandle you into a position he finds more acceptable. Your legs open so easily for him, giving him access to your now unclothed pussy. Spit-slick fingers rub over your folds, gathering the wetness there. You let out a shaky breath.
"After all, it would be real fuckin' embarrassing if you did," Naoya drawls, his voice always takes on this soft, condescending tone when he teases you. "If you pissed yourself, I mean."
Naoya kisses you again, this time skipping the pleasantries and parting your lips with his tongue, greedily licking against your own to taste the inside of his sister's mouth. You're overextending yourself, trying to focus on too many things at once to forget how dangerously close you are to pissing yourself, because if you were to let go right now, it would get all over your big brother's hand – and then you really wouldn't catch a break. So you try to focus on the softness of his tongue, on the pleasure of his fingers finding friction over your swollen clit.
"I don't wanna," you whimper, voice sounding like that of a petulant child. "Naoya-nii..."
"No?" He mocks, nearly grinning from ear to ear. "Don't wanna piss yourself like a dumb baby? Then don't."
One hand grips your hip to steady you, the fingers on his other finally breaching the tight entrance of your cunt. Your jaw drops, mouth hanging open in a moan. His fingers are thick. He always gives you two right off the bat, claiming he's being generous and prepping you for his dick instead of making you take it. It's funny, how he loves you like that.
His sweet baby sister, opening for him like a flower.
Pleasure sparks through your body as the heel of his palm grinds into your clit, providing the right amount of pressure in tandem with his prodding fingers. Your mouth hangs open, unmoving and pliant while his tongue licks into it, kissing the corner of your lips. The fullness of your bladder makes everything feel so much more sensitive, more responsive as your brother works his fingers and and out of your cunt, aided by your saliva and drooling arousal.
Knowingly, his fingers reposition and curve, finding that spot within you and targeting it with the pads of his fingers. It triggers what you've been fighting so hard to hold. For the first time since he started berating you, you move, hands clinging to his clothed forearm, clawing at it in desperation. Your body and mind are on two different pages, the little voice in your head still grounded in reality screaming for you to push him off. Maybe you could swing it with a desperate surge of cursed energy, but your hands urge his fingers deeper, keeping them pressed against that spot.
Naoya seems to like this, cock throbbing at the sight of you trying to get yourself off on his fingers. He can feel your pussy squeezing, sucking them deeper.
"Hey, you forget your fuckin' manners?" He reprimands, though the amused look on his face doesn't match his tone. He's getting off on this, the sick bastard. You know he is. "Gonna ask me first or were you just gonna keep humping my hand like some desperate slut?"
"Please, Naoya-nii," you blurt out, the tightly-wound coil inside you clenching tighter by the second.
"The fuck was that?"
"Nii-sama," you correct, pleading. It's so fucking close. "Nii-sama, please, can I cum?"
Naoya hums, pretending to think it over. His fingers plunge in and out of your cunt at a rapid pace, filling the small room with the obscene squelching of your arousal. Your hips move on their own, desperate to meet his pace, riding his thick fingers to chase the high. Maybe you have the restraint to hold it, let yourself cum on his fingers and still have enough time to rush to the bathroom before it takes a turn for the worse.
"Gonna pull that shit again?" He asks, pace not relenting. "Hm? Gonna lash out at me again like a spoiled brat when everyone can see you? Make me look like a fuckin' idiot?"
"No!"
"Yeah, better fuckin' not. Undermine me again and I'll kill ya. Now cum for me."
You don't need any further prompting. Your body goes lax, walls clamping snug around Naoya's fingers before releasing, soaking them in a hot rush of cum. He fucks you through it, not once stopping or slowing, narrow brown eyes watching your pussy coat his knuckles in a layer of milky white. "There's my good girl," he praises, soft but sweet, only ever meant for you to hear. "There's my good baby girl, that's it, let me have it."
It hits you for the last time before your orgasm even finishes, the relaxing of your muscles. You physically can't hold it back anymore, even if you could, it's far too late.
There's another surge of warmth, the wet sloshing of another liquid streaming from your spread legs and making a mess on your brother's hand, soaking the sleeve of his haori, soaking the tatami, trickling down your inner thighs in clear rivulets. Naoya's jaw drops, eyes widening at the sight. Even then, he can't fucking stop.
"What did I say, huh? Didn't I tell you to hold it?" His fingers press harder at your inner walls, ramping up the pace, desperate to fuck every last drop from you as his cock throbs under his hakama. "You're that incapable, can't even hold your own piss?"
You're fucking horrified.
"I'm sorry, nii-sama!" you sob. "I didn't mean to, I promise!"
"Yeah, yeah," he sneers. "Go on then, let it out."
With no other option, you resign yourself. Your body slumps forward onto Naoya's broader frame, shuddering, the urine releasing in pulsating gushes along with your orgasm, further soaking everything else. Hand, haori, tatami, even the linen of your kimono pooled underneath you. Your body is overwhelmed. Your face burns hotter, eyes drooping in exhaustion and relief. Blood rushes in your ears, heart pounding loud enough, you're certain Naoya can hear it.
The room spins.
Naoya's opposite hand rubs your back in a rare act of affection. It feels different from pity. He kisses the top of your head, then your shoulder, allowing you to come down slowly.
As the rushing of blood quiets, you're too ashamed to pull your face from the crook of his neck.
"Kid, look at me."
"Don' wanna."
"Come on."
Sniffling, you force yourself upright, still kneeling on your jello legs.
Still kneeling on the cold, soaked garments. Gross.
Naoya cradles your feverish cheek. You look cute like this, lips pouted, face absolutely debauched. His heart swells in his chest.
"I'm sorry, nii-sama."
"You kidding me?" He laughs under his breath. "You know how hot that fuckin' was? Almost came in my pants 'cause of you. Wanna see you do that shit again for me."
Embarrassed, you scoff and look away, but your brother redirects you, kissing you once more – chaste, but gentle. Reassuring.
After that, he leans back and starts undressing from the waist up, shrugging off his haori, working on his kimono, all until the soiled garments sit in a heap.
"Now go get someone to clean this shit up."
"Me?" You ask, incredulous, looking down at your disheveled form – still soaked, might you add. "Can't you go find someone to do it?"
"I wasn't the one that pissed myself, little sis. Now get out of here."
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