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astralstarlight · 3 months

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for jjk valentine's day 2024

summary: he invites you to hang out (fuck) on valentine's day

word count: 3.5k+

warnings: NSFW content (under the cut!), minors DNI, fem! reader, no curses AU, fwb relationship, FINGERS IN MOUTH, sukuna bites you, sucking him off, he calls you princess + brat, he's big and a little mean but he gives you praise (and begrudgingly gives you aftercare), he likes you messy, he tries to be in control but reader's kinda bratty

divider from @/cafekitsune!

Sukuna opens his apartment door, a look of disapproval already plastered on his face before he’s even made eye contact with you. It’s a sharp contrast to the cheeky smile you’re giving him. He doesn’t invite you in yet, merely leans against his door frame with his arms crossed, giving you a greedy once-over. Awful. A cold breeze ruffles your dress and you shiver. Tilting your head sheepishly, your hands reach down to readjust the bottom of your dress, fingers tantalisingly lingering on your upper thigh before retreating to your side.

Sukuna’s mouth twitches at the action. “Don’t act coy.” He murmurs finally, offering a hand for you to take.

You accept, fingers resting on his palm while you bow dramatically. “I’m so flattered that you called on me today, out of all of your maidens.” A familiar dramatism lingers throughout your form, even as your head tilts upwards to catch his reaction.

“There isn’t a string of maidens.” He’s watching you carefully, unperturbed by your over the top attitude. He’s probably grown used to it after all this time. “You’re the only one.”

A beat of silence.

“The only one who sticks around as your friend, you mean.” The denial leaves your lips before you can really process what he’s even said.

Sukuna raises an eyebrow. “If there was anyone else, you’d be the first to know.” He huffs. “Because I’ll stop calling you.”

Your heart does an odd little skip, and you ignore it. He’s being honest, you think. You can’t really tell. Maybe he’s just messing with you. The urge to avoid whatever he’s making you feel is strong.

You snort. “Okay, never pegged you for a liar.” You take your hand off of his palm, and squeeze past him to enter his living room. There’s a sound that sounds like frustration from Sukuna as you do so, and the door is left to slam shut as he trails after you.

“I’m not lying.” Sukuna grabs onto your wrist, pulling you towards the couch instead of the bedroom.

You let him, feeling a gentle heat brewing in your stomach as you remember what you’ve really shown up here for. “Huh.” You say intelligently. He really does look pretty from the back as he’s pulling you gently across the room. “You were feeling lonely or something on Valentine’s Day? Felt like you were missing out?” You tease, twirling a piece of hair around your hand with an overemphasised giggle.

Sukuna doesn’t let you contemplate your words any further, shutting you up by pulling you into his chest and tilting your chin up so he can kiss you. “You really have a lot to say today, you know?” He mumbles against your lips, pulling back so you can see his annoyed face. A thumb immediately presses over the middle of your mouth as you open your mouth indignantly to retort. He groans, eyes closed. “Please. Just be quiet.” It almost sounds like he’s mumbling the last part to himself.

“Make me.”

Your eyes are bright and cheeky. Sukuna decides he wants to stamp out your bratty behaviour before you realise that you’re really getting under his skin.

“Oh, this is how you want today to play out?”

You’re laughing, even as he’s roughly pulling off your clothes and pressing his lips to yours, only breaking apart briefly when you accidentally knock over one of his lamps in the midst of it. You both look at it before looking back at each other.

A guilty look is on your face. “Oops.” But when it’s combined with that wide smile on your face, he knows you don’t really mean it.

Sukuna chases after your lips, holding you tightly against him, kissing you again and again until you’re both a little breathless and until you’re both finally bare. He can feel you thinking about something, even as he runs his teeth up your neck.

“You’re acting kind of weird today.”

“Mm? How so?” He pairs the question with a sharp bite to your shoulder, lips curling into a smile when he hears you let out a surprised squeak. It doesn’t bleed, merely tinged red. He knows your limits, and he knows how much pressure he’d need to put through to really make you bleed. But neither of you are in the mood for that today.

You shiver in his grasp, and his arms circle around you tighter so that you can’t move away from the sting of his teeth.

“You’re…” You bite back your words, eyebrows furrowing. This isn’t good. You should be focusing on the moment, not on letting your thoughts wander off. But still, this feels weirdly like foreplay. Usually, the most foreplay Sukuna indulged you with were lovingly traded insults and harsh words, but these kisses and the way his hands are clutching you feels a bit more than usual. “Never mind.”

Sukuna pulls back, squeezing your hips. “Spit it out.” He says, annoyed now.

“Nope.”

He grumbles something that suspiciously sounds like an insult against you into the crook of your neck, but he lets it go. Instead, he’s nudging you to your knees in front of his hard length while he settles onto his couch. He doesn’t need to tell you what to do, you’re already kneeling in front of him, licking your lips in anticipation. You lick up his cock tentatively. Another grumble of annoyance leaves his lips as he pats your cheek with his fingers. “Open up. You want to impress me, right? You’ll need to really get into it if you want to be filled up.” He narrows his eyes. “Especially with your attitude today.”

Sukuna slides a thumb past your lips, groaning as you start to suck without any further instruction. It’s a sound that sends a heat down to your core. “There we go.” He hisses, swapping his thumb for two of his fingers that he uses to press down on your tongue. A spluttering, choking sound comes from your throat as he pushes his fingers to the back of your mouth without any warning, but he doesn’t stop. His eyes narrow. “Nervous today?” He asks, nonchalantly. And you know he expects you to answer, even with your mouth full.

You shake your head, too busy tensing your thighs together at the low whisper of his voice.

“You’re usually more prepared than this.” He mutters, pulling his fingers out of your mouth. “Alright, come here.” He pats his leg and you clamber up onto it eagerly. His thigh tenses under you as he realises how wet you already are. “If you make a mess, princess.” Sukuna says the pet name with barely any semblance of fondness. “I’ll make you clean it up.” He places two fingers into your mouth again, letting out a breathy laugh when he feels you clench your thighs around his at the comment. “Suck.”

Two fingers turn into three, and he’s not satisfied until he’s got you rocking your hips in small motions against his leg, hoping for more friction. He doesn’t tense up his thigh again, only watching you with a piercing gaze as your mouth pulls his fingers in and back out again. Sukuna pushes his fingers to the back of your throat once more, dragging them out slowly and praising you with a whistle of satisfaction as a strand of saliva clings to his fingers, snapping midway and leaving a trickle of drool down the side of your mouth. You whine, hands perched on his upper thigh as you grind your hips a little harder.

“Hey.” He cups your cheek in a rare act of kindness, swiping a thumb over your drool. “You look all fucked out already.” His voice is soft, almost affectionate as he leans in, speaking against your lips. You shake your head at the thought. You’re just imagining things in the heat of the moment. You try to move your hips a little faster, but he stills you with his hand, pushing you down until you’re seated properly on his thigh. Sukuna rolls his eyes, nudging you off him and situating you between his legs again. This feels more familiar.

He lets you touch him for a bit, letting your hands pump his length briefly and allows you to press kisses to his tip as he shudders. You drag your warm tongue along his shaft, taking him into your mouth before letting go with a satisfied pop. Sukuna’s stomach tenses as you do so, only relaxing once you go back to your gentle, peppering kisses. It doesn’t take long before he’s annoyed by your gentleness, and his hand comes up to twist at the roots of your hair.

“Stop messing around and just…” A sigh leaves his throat as he pushes you down onto his cock, getting you to take him inch by inch. He doesn’t really let you catch your breath, too busy with how pliant you are once he really tells you what he wants. He holds you there once he hits the back of your throat, until you’re scratching at his bare thigh, and he lets you go with a sharp breath, a little dribbly and sloppy. It’s a little too messy. “I like you better like this, you know.” He grunts, his other hand brushing your hair out of your face for you. “It’s so much nicer when you just take it.”

He laughs, a mean-spirited tone in it that has you sending him a small glare, even as you’re hungrily glancing at his cock again.

“Mmm, c’mon gorgeous, let me guide you a little. You prefer it that way, right?” He smirks down at you, and you throb painfully at the thought of him finally filling you up like he promised. Sukuna doesn’t wait for you to nod, holding one hand onto the back of your head and coaxing you to open your mouth again for him. And you do. Perhaps a little too willingly, as your mouth fills with the taste of him. His fingers entangle themselves into your hair, and every tightened grasp has you moaning around his length. He’s close, you can feel it in the way that his length throbs in your mouth. There’s barely any warning, only a deep grunt from Sukuna before he releases into your mouth. Good thing he’s given you so much training in your previous meetups.

You pull off him as he finishes spurting, closing your full mouth and looking up at him with affectionate wide eyes. More dramatism. You’d thought Sukuna would roll his eyes, but he’s only got his eyes on you, slightly dazed from his release. You decide to bring his focus back properly, swallowing the bitter taste of his cum and letting your tongue hang out with a happy smile to show him it’s all gone. It’s an image you know will sear into his mind for days to come.

A small feeling of victory sprouts in your chest, his cock twitches at the sight and his jaw falls open slightly. Sukuna clears his throat, pulling you up to stand by your arm and pushing his lips on yours before you can protest. It’s careless and sloppy, all tongues mashing together and he ends it as abruptly as it began, giving you a pat on your cheek again before he’s turning you around so you’re facing away from him.

He pushes into you slowly, a stretch that has your eyes rolling up into your head and a quiet huff of pleasure leaves his lips. Sukuna’s weirdly kind enough today to rub your clit in slow circles to take your mind off of it. But it’s only for the initial stretch. He’s pulled you down by your hips onto him once he notices your form relaxing at his fingers, and you whimper at the feeling.

“Shh, shh. You can take it, I know you can.” Sukuna traitorously rubs his thumbs in soothing circles on your waist as though he hasn’t just bullied his way inside you.

“Too b-big. Wait–” You whimper out, sentence broken once he gives a small jerk of his hips and you’re reminded that you’re seated in his lap, all filled out. You cry out his name instead.

Sukuna laughs, grazing his hands up and down your sides. “Look at that.” He marvels, tracing a finger from your neck to the bottom of your spine. “Took me all in one go.” He spanks your ass lightly, seething as you clench around him. “You’re clinging onto me so tightly. Talk all you want, but you like me being mean to you, huh? You wouldn’t keep coming back if I was nice to you.” A stuttering breath leaves his lips as you clench down again at his words. “Thought so.”

You squirm in his lap, only thinking about how it’ll feel when he’s pounding into you, filling you up again and again until you’re satisfied. Your actions are quickly stopped.

“Why the rush? I’m not bored of this sight yet.” His hands have clamped around your thighs, halting your movements. “Stay still.” There’s a warning edge to his voice that makes you listen, stilling your resistance against his hands and ignoring the urge to whimper indignantly at his command.

“S-Sukuna–!” You’re babbling and he hasn’t even started yet. But it’s not enough. Between the brief moments of grinding on his thigh and just sitting on him as he fills you up, it’s definitely not enough. The warmth in your stomach is building slowly, going nowhere.

His hand gently caresses the sides of your neck, hovering his fingers around it and letting go. If you could see him, you’d see the admiration on his face. But you don’t. A feeling of frustration overtakes your mind instead.

“What’s that?” The cocky smirk on his face bleeds into his words. “C’mon, use your big girl words.” He thrusts his hips up into you quickly, squeezing your hips again when you moan out. “You’ve always been such a brat, with so much to say. It’s nicer to hear you like this — desperate and needy.” A hand wraps around you to tickle your clit, hissing as he feels you tighten around his cock.

“I’m… I’m not desperate.” You still fight him, although you quickly regret it once you feel his hands leave your skin. You whimper out his name at the loss of the pleasurable touches, turning your head around to try to look at him.

Sukuna’s words cause you to freeze. “If you turn around to look at me, I’ll leave you here like this.”

You dutifully turn your head back to the front, wiggling your hips slowly at how full you feel. It’s enough, just barely enough for a twinge of pleasure to run through you, but you know it could feel better. It’s not enough to calm the heat between your legs. You feel yourself squirm again at the sensation of some of your wetness leaking out of you in your desperation. “Hmm. Why don’t you try it then, princess?” He’s mocking again, and you whine as you feel it light something inside you. “Use me a little.”

“I don’t know if I can.” You sob at the idea, achingly moving your hips up and down as you try to mimic the pleasure you know he can offer.

“Try.” He orders.

Your breathing comes out shakily as your hands come up to your chest to play with your nipples, while his hands finally move back to rest on your hips. He really doesn’t move, even holding back any moans that threaten to slip out so that all you can hear is your own thumping heartbeat and quiet mewls as you feel him filling you while your hips thrust. It’s not until your hands are down on his knees and you’re frowning with frustration that he chuckles.

“Want some help?”

“Please, Sukuna!” You turn your head to meet his gaze and he gets a full view of your pitiful expression, tears threatening to spill from the corner of your eyes. He gives you a mocking replica, all pouty lips and a hand coming up to stroke your chin.

“Keep trying, as hard as you can.” He coaxes you instead, and you do, until a faint tinge of exhaustion creeps up on you again and you shiver, hands desperately trying to reach behind you to grab onto him for a reason you can’t even think of through the dissatisfaction.

Sukuna’s on to you as soon as you reach for him, pulling your arms back towards him so that you’re left arching against his chest while he thrusts up into you. It’s hard and fast, just the way he knows you like. “There, there. You did such a good job at trying.” He sneers. “I suppose you deserve some sort of reward.”

It’s a punishing pace he sets, emptying your mind with nothing but pleasure from being filled up over and over again. This angle has him reaching your soft, sensitive spot easily, and you choke everytime he does, your mind blanking. His hand comes down to your clit to toy with it, holding your wrists behind you with his other hand now. You're squirming and moving so much, and you know it’s taking most of his efforts just to keep you still. But you’re not thinking about that too much, too busy focusing on the way he feels inside you and the coil in your belly tightening. Your breathing quickens and you lean your head back onto his shoulder as you feel yourself going weak, your mind going blank–

Sukuna bites you on the shoulder. His teeth sinks into your skin, just enough to draw a prickle of blood, and it has you trembling from the feel of it. The sudden pain mixed in with his thick cock filling you up is what sends you over the edge, thrashing in his hold as you whine out his name. He follows soon after, with a kiss against where he bit you, releasing hot spurts into you that has you wriggling in his lap from the sensitivity.

It’s quiet after, only the sounds of your breathing. You’re slowly coming down from your high, feeling his chest rise and fall against your back and his breathing on your skin.

“F-felt good…” You huff out, your whole body limp against him.

He lets out a quiet ‘tsk’, but doesn’t seem to mind your weight, a hand trailing circles around your stomach. “I know.” He nibbles at your neck, smiling as he feels you tremble. “Where do you feel me?” He mumbles quietly into your hair, and you use what strength you have to push his palm over where his length reaches inside you.

You feel his cock throb inside you, and you let out a pleasured sound. “Just right.” You mumble.

“Really?” There’s a bite to his voice that has you knowing that you’re about to be teased incessantly. “I could have sworn you were moaning about how big it was earlier.”

You don’t give him a response, still feeling small waves of pleasure shudder through your form. He gives you a couple more lingering touches along your skin, and then he’s lifting you off him, placing you down onto the side of the couch to lay down.

“Don’t look at me like that.” Sukuna frowns at you, noticing the distraught look on your face.

Now that the main event is over and done with, you know you’re supposed to leave. But some weird part of you wants to stay, and unable to voice it, you feel your bottom lip tremble. Your face scrunches up, and you feel a little empty – not just because he’s not filling you up anymore, but also from an ache in your chest.

Sukuna lets out an annoyed sigh, but pats your leg gently. “Alright, fine. A needy thing like you probably wants cuddles and affection, right?”

You nod, closing your eyes from embarrassment. You’re never like this with him, but after all the oddly kind way he was treating you today, on top of all the other things you’re familiar with from him, you seem to want a little more. And the fact that he wasn’t chasing you out sends a feeling of hope through your heart. You’re not really expecting him to go along with your whims, so when he pulls you into his chest, lifting you up off the bed into a bridal carry to the bathroom, you’re a little surprised.

Sukuna chuckles at the squeak leaving your raw throat. “You sound like a parrot.”

“Shut up.” You mumble. He doesn’t say anything to that.

He makes sure you’re steady on your feet when he places you down before leaving you to turn on the shower. He returns to your side as you both wait for the water to warm up.

“Stupid.” Sukuna grumbles, shaking his head at your antics with a slight fondness for you. You dare to peek up at his face at his word, only to find he’s already looking at you. As soon as he notices your gaze, he trades the slight curve on his lips for a neutral expression. He crosses his arms over his chest. “You look so enticing when you’re all pouty like that.”

Before you can object, his hands are already feeling around your midriff, tugging your weak legs towards him and catching you as you stumble into his waiting arms.

“Don’t worry, brat.” There’s a dangerous glint in his eyes that definitely has you worried. “I’ll take really good care of you.”

#i can't write him super mean i'm sorry #i will one day #sukuna x reader #sukuna x you #sukuna #sukuna smut #jjk smut #jjk x reader #jjk x reader smut #jujutsu kaisen x reader #alathea's valentine's day 2024 fics!#ryomen sukuna #— alathea writes #jujutsu kaisen smut #valentine's day

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