๐๐ฆ๐ฏ๐ฑ๐ฅ๐ก๐๐ถ ๐ฐ๐ข๐ต
frat boy sukuna x reader - 18+
synopsis - itโs sukunaโs birthday and you thought itโd be fun to gift him you as his present considering you have a flirtatious friendship. Things quickly escalate and get hot between the two of you
a/n: Iโm really bad at writing smut so please ntm! I tried
You know exactly what youโre doing the moment the idea settles in your chest.
It hits while youโre walking past a store window. Mannequins dressed in lace and silk, confidence stitched into every seam. You slow without realizing it, head tilting, lips curling into a slow smile.
Sukunaโs birthday.
โYeah,โ you murmur to yourself. โThatโll work.โ
The next few days are spent preparing. Shopping bags pile up at your feet as you weigh fabrics in your hands, imagining his reaction. His stare. That brief pause he gets when something actually catches him off guard. You choose carefully. Nothing accidental. Nothing rushed.
When Gojo catches you sneaking into the frat house later that week with bags tucked under your arms, he squints suspiciously.
โWhy do you look like a menace right now?โ
You blink innocently. โI donโt know what you mean.โ
Toji eyes the bags. โThatโs a lie.โ
Choso crosses his arms. โWhat are you planning?โ
You hesitate just long enough to make it dramatic.
โItโs for Ryo.โ
That does it.
Gojoโs grin spreads immediately. โOhhh. Itโs that kind of gift.โ
You groan. โDonโt make it weird.โ
Toji laughs. โToo late. Whatever it is, heโs gonna lose it.โ
You sigh, smiling despite yourself. โI might need help setting something up.โ
Gojo claps his hands together. โSay less.โ
Later, you find sukuna leaning back in his chair when you spot him across the lecture hall, arms crossed, expression bored like today means nothing. You slip into the seat beside him, nudging your knee against his.
โHey, Ryo,โ you say casually. โHappy birthday.โ
He looks at you, surprised for half a second before that familiar smirk settles in. โYou remembered.โ
โPlease,โ you scoff. โIโm not heartless.โ
He glances at you sideways. โWhat, no big plans?โ
You shrug. โMaybe. You?โ
He snorts. โThe guys are doing something. Probably loud. Probably stupid.โ
You hum thoughtfully. โWellโฆ lunch is on me.โ
That gets his attention.
He leans closer, eyes narrowing playfully.
โYeah?โ
โYeah,โ you say, standing and grabbing your bag. โBirthday privilege.โ
Lunch is easy. Laughing. Stealing bites off each otherโs plates. Brushing hands like it means nothing. Heโs relaxed. Unaware.
And you are sitting on a secret so good it almost makes you giddy.
By nightfall, the frat house is unrecognizable.
Lights. Music. Bodies everywhere. Sukunaโs name shouted across rooms, drinks pressed into his hands, attention he pretends not to enjoy and very clearly does.
The house is already loud when you push through the front door. Bass rattles the floorboards. The air is thick with sweat, cheap cologne, and alcohol. Someone shouts your name from across the room and you wave automatically, scanning for a familiar face.
And there he is.
Sukuna leans against the kitchen counter like he owns it. Red cups litter the surface in front of him. Heโs halfway turned toward the room, arms bare beneath a sleeveless black tee that looks designed to show off how broad he is. Tattoos curl down his biceps, disappearing beneath the fabric. When he laughs, low and rough, the sound cuts through the noise just for you.
His eyes find you.
They always do.
One brow lifts, slow and knowing. The corner of his mouth quirks up in that cocky grin he only uses on you.
You barely take two steps into the kitchen before he straightens and closes the distance, crowd parting easily around him.
He stops close enough that you can smell the beer on his breath and feel the heat of him.
โTook you long enough,โ he says. โThought you ditched.โ
You roll your eyes. โItโs your party. I figured youโd be too busy being a menace to notice.โ
His gaze drags over you, slow and unapologetic. When his eyes meet yours again, something sharp and warm flickers there.
โPlease,โ he murmurs. โI always notice you.โ
Your stomach flips. Annoying. Dangerous. Familiar.
Youโve known Sukuna since freshman year. Study groups that turned into late nights. Late nights that turned into this. Not dating.
Not hooking up. Just tension. Constant, crackling tension that never quite snaps.
He presses a red cup into your hand without asking, fingers brushing yours deliberately.
โDrink,โ he says. โYouโre too sober.โ
You arch a brow. โBossy.โ
His grin widens. โYou like it.โ
You hate that heโs right.
You drink slowly, eyes never leaving his over the rim. He notices. Of course he does.
โCareful,โ he murmurs. โYou keep looking at me like that, Iโm gonna get ideas.โ
You lean closer, shoulder brushing his chest. โItโs your birthday. Youโre allowed ideas.โ
He laughs under his breath. โYouโre a menace.โ
โAnd yet,โ you say sweetly, โyou wonโt move away.โ
He doesnโt.
The music grows heavier, bass thudding through your ribs. Someone bumps into you and Sukunaโs hand finds your waist instantly, firm and familiar.
โEasy,โ he mutters.
You glance down at his hand, then back up at him. โYou guarding me now?โ
His thumb presses in. Subtle. Possessive. โSomeone has to.โ
Gojo appears, already half-drunk. โThere you are!โ He slings an arm around Sukunaโs shoulders. โBirthday boy. You vanish and everyoneโs asking where you went.โ
Sukuna barely looks at him. His eyes stay on you. โWas busy.โ
Gojo follows his gaze and grins. โAh. Yeah. That tracks.โ
The crowd pulls you toward the living room. The musicโs louder here, bodies packed tight. You end up near the center of it without really meaning to. Or maybe you do.
You move with the beat, loose and confident. You feel eyes on you. Not just Sukunaโs.
He notices immediately.
When someone spins you playfully before drifting away, Sukunaโs jaw tightens. He steps closer.
โYou look like youโre enjoying yourself?โ he points out.
You tilt your head. โAm I not allowed to?โ
โI didnโt say that,โ he replies. โJust noticing.โ
You smile. โGood.โ
The lights dim. The music slows. This time, he doesnโt ask. He pulls you in by the wrist, bodies fitting together easily.
โYouโre doing this on purpose,โ he murmurs near your ear.
โDoing what?โ
โActing like you donโt know exactly what you look like right now.โ
You pull back just enough to meet his gaze. โAnd what do I look like?โ
His eyes drop to your mouth. โLike trouble.โ
You grin. โThatโs what I was going for.โ
Later, you collapse onto the couch together. His arm drapes along the backrest behind you. You lean into it.
โYouโre being suspiciously well-behaved,โ he says.
You glance at him. โIs that a complaint?โ
โJust means youโre planning something.โ
You lean closer. โGood thing Iโm not lying.โ
His fingers hook lightly at your waist.
โCome upstairs,โ you whispered in his ear.
His brow lifts. โYeah?โ
You step closer, lips near his ear. โI have a present for you.โ
That does it.
His mouth curves into a lazy grin, eyes darkening with interest. โI like the sound of that.โ
You donโt give him time to say anything else. You take his hand and lead him through the crowd, past shouted greetings and curious looks. He follows easily, like he trusts you, like heโs already decided whatever this is will be worth it.
Upstairs is quieter. The bass dulls into a distant thrum as you pull him into his room and shut the door behind you.
You turn on him before he can speak and push him back onto the bed. Not rough. Just confident.
He blinks, surprised, then laughs softly as he sits back on the mattress, hands braced behind him.
โWell,โ he says. โDidnโt expect that.โ
โSit,โ you tell him.
His smile widens. He doesnโt move.
โYouโre enjoying this,โ he says.
You step back, letting the distance stretch. Letting him look.
โMaybe,โ you reply.
The room is dim, soft light catching on his tattoos as his gaze tracks every movement you make. You hook your fingers into the hem of your top.
โThis is for you,โ you say quietly.
You lift it slowly, watching his reaction as much as his eyes follow the fabric. When it comes off, his breath visibly changes. Sharp inhale. Slow exhale.
For a moment, he doesnโt say anything.
Then, softly, โYou did this on purpose.โ
You nod.
His eyes drag over you, unhurried, like heโs taking his time on purpose. โYou lookโฆโ He stops, jaw tightening. โFucking hot.โ
You smile despite the heat in your cheeks. โHappy birthday.โ
He pushes up onto his elbows, gaze never leaving you. โYou have no idea what youโre doing to me right now.โ
You step closer, standing between his knees. His hands hover, not touching yet, like heโs giving you the chance to change your mind.
You donโt.
You rest your hands on his shoulders instead, leaning in just enough that your breath mixes.
โI wanted to surprise you,โ you murmur.
โYou did,โ he says immediately.
His hands finally settle on your waist. Warm. Steady. Possessive without squeezing.
โThis feels dangerous,โ he adds, quieter now.
Your heart thumps. โDo you want me to stop?โ
He shakes his head. โNo. I want you to keep going.โ
The admission hangs between you, heavy with everything neither of you will say out loud.
You lean down and kiss him.
Slow. Deliberate. Just enough to promise more.
When you pull back, his forehead rests against yours, eyes half-lidded.
โYouโre trouble,โ he murmurs.
You smile. โYou like trouble.โ
A soft laugh leaves him. โYeah,โ he admits. โI really do.โ
His hands roam, confident and rough, gripping your waist, your thighs, lifting you just enough that you squeak in surprise.
He grins against your mouth, then kisses you again rough this time. When he pulls back, his expression darkens
โOn your knees,โ he says demandingly.
โOnly if you want.โ
Your heart pounds.
You sink down without breaking eye contact.
Sukuna exhales slowly, eyes darkening. โYeah,โ he murmurs. โGood.โ
He threads his fingers through your hair not pulling yet, just holding.
โYouโre doing great already,โ he adds, voice low and approving. โSuch a good slutโ
The praise hits like fire, curling in your stomach like a promise
You smile.
โCareful,โ you murmur, eyes lifting lazily to his. โYou sound like youโre enjoying this.โ
Sukuna huffs out a quiet laugh, grip tightening just a little in your hair. โOh, I am.โ
His thumb slides under your chin, tipping your face up. โJust checking youโre still with me.โ
You lean into his touch on purpose. โVery much.โ
His gaze darkens instantly.
โGood,โ he says. โThen donโt rush.โ
You donโt.
Your hands trail up his thighs slowly, deliberately, feeling the muscle shift beneath your palms. He watches you like heโs cataloguing every move, jaw tight, eyes burning. When you lean forward, pressing a soft kiss to his stomach, his breath stutters despite himself.
โFuck,โ he mutters. โYouโre doing this to torture me.โ
You glance up, lashes lowered. โItโs my gift. I get to enjoy it too.โ
That earns you a dangerous grin
โCocky,โ he says approvingly. โI like it.โ
You take your time, kisses slow and teasing, letting the tension coil tighter. His fingers flex in your hair, still not guiding, just there, reminding you exactly who youโre playing with.
โLook at you,โ he murmurs. โAll confident tonight. You been planning this?โ
โMaybe,โ you say sweetly. โThink itโs working?โ
His head tips back against the wall with a low groan. โYeah. Too well.โ
When his hand finally tightens just enough to send a spark straight through you feel it everywhere. Not pain. Control. Heat.
โYou still good?โ he asks, quieter, because for all his mouth, he means it.
You nod. โDonโt stop.โ
Thatโs permission.
His composure fractures just a bit then. His breath goes uneven, hips shifting as he mutters your name under his breath, like it slips out before he can catch it.
โIโve wanted this,โ he admits, low and rough. โYou have no idea.โ
You pause just long enough to look up at him, smug. โI had an idea.โ
A laugh escapes him short, breathless. โYeah,โ he says. โOf course you did.โ
His hands slide down your arms, firm and appreciative, thumbs brushing bare skin. โYouโre dangerous,โ he adds. โComing in here like this on my birthday.โ
You smile. โYou love dangerous.โ
โUnfortunately,โ he says, eyes dragging over you, โI really do.โ
A sharp laugh leaves him as you sink down in front of him, gaze never leaving his. His breath catchesโnot because heโs surprised, but because heโs trying not to show how much he wants this.
โFuck,โ he mutters, one hand finding your hair automatically. Not pulling yet. Waiting.
You tilt your head just enough to look up at him, smug. โRelax. Iโve got you.โ
That does it.
His grip tightens, guiding instead of forcing, breath turning uneven as the tension finally snaps. He tips his head back, teeth sinking into his lip like heโs holding himself together by will alone.
โYeah,โ he breathes. โJust like that.โ
But it doesnโt last long.
โHeyโโ you start, pulling back just a bit when you feel him move.
In one smooth motion, heโs got you flipped beneath him, the mattress dipping as his weight settles carefully between your legs. He looks down at you, eyes dark and intent, hands braced on either side of your head.
โNo,โ he says, decisive. โMy turn.โ
You blink, surprisedโand warm in a way that has nothing to do with the room. โKuna, Iโm supposed to beโโ
He leans down, pressing a kiss to your stomach, then lower, voice muffled but amused. โFor my birthday,โ he says calmly, โI wanna get you off.โ
Heat floods your face. โThatโs not how gifts work.โ
He chuckles softly. โIt is today.โ
he creeps up to your neck, leaving sloppy open mouthed kisses on it as your hands flys in his salmon hair, tugging hard.
Everything else was a blur.
"kunaaa.." you whine, a mischievous grin appears on his face as his mind goes slightly fuzzy from the nickname but he pays no mind to that.
"nghโshit, keep moaning f'me."
your legs are locked around his waist, nails dragging down his back with each nasty thrust. his balls smack against your ass
he has you in the nasiest mating press, eyes rolling to the back of your head as he continues to pound into you roughly until your damn near screaming out from his cock is kissing your cervix. "kuna, m'so close! please don't stop pleasepleaseplease" useless rambles escape your mouth, his free hand finds your clit, rubbing tight circles on it
"cum f'me, give it to me babeโ
clear liquid gushes out of you, coating his cock and stomach before drenching the sheets below you. Youโre shaking from the shock but sukuna continues pounding you, your pussy giving one tight squeeze and he's burrying himself to the hilt as he cums in you.
"fuuuck, got my cum in this sweet pussy." he smiles before pulling out slowly, giving your clit a smack and grinning when you whine.
You guys both lay still to catch your breath before sukuna gets up. Youโre so tired you donโt bother to get to see what heโs doing. After a few minutes, he comes back with a warm damp rag to clean you up with.
โSee?โ he murmurs, pulling you back against his chest, smug satisfaction in every syllable. โWorth it.โ
You shove at his shoulder weakly. โYouโre impossible.โ
โAnd youโre smiling,โ he shoots back.
Later heโs cuddling up to you, tucking you in his neck as you both drift to sleep
Eventually, the room goes quiet. The party downstairs fades into nothing. As heโs cuddling up to you and youโre tucked in his neck both of you drifting to sleep.
Morning comes gently.
Sunlight spills through the curtains, catching on bare skin and rumpled sheets. You wake wrapped around each other, his arm heavy over your waist, your face tucked against his chest like it belongs there.
The door creaks open.
You barely have time to register it before
โOh my god.โ
You groan. Sukuna doesnโt even flinch.
Gojo stands there, phone already up. Click.
โAbsolutely not,โ you mutter, burying your
face.
โThis is gold,โ Gojo says, delighted. โYou two look disgustingly domestic.โ
โGet out,โ Sukuna says flatly.
โToo late,โ Gojo replies, already backing away.
โThe group chatโs gonna love this.โ
The door shuts. Footsteps retreat downstairs.
Sukuna snorts. โWorth it.โ
You laugh despite yourself, pressing a kiss to his collarbone. โYouโre never living this down.โ
He shrugs, tightening his arm around you. โCould be worse.โ
You glance up at him. โHow?โ
He smirks. โCouldโve missed out on my best birthday ever.โ
You shove him again but you donโt move away.
(nanami fic coming soon!!)














