study buddies [sukuna x reader] {req}
▷ jjk
↳ pairing: sukuna x f!reader
↳ content: { request fic } - dom!sukuna, subby!reader, curvy&soft!reader, college!au, dubcon, choking, spitting, marking (biting, scratching), dacryphilia, degradation (?), breath play (?), a sprinkle of praise (as a treat), nicknames for reader (princess, babygirl)
↳ words: 4.7k
⇢ summary: sukuna’s a little fed up of yuji having you all the fun with you, so when yuji suggests you should take a break from studying, sukuna decides it’s the perfect opportunity to have a taste of yuji’s little princess.
also available on ao3
⇢ note: request for nemi; i’m so sorry it took so long to get around to this but i hope this makes up for the wait! a huge thank you for being my partner in crime on this and for some of the fantastic ideas you shared.
Yuji had been grumbling at his textbook for the better part of ten minutes before you peered over the top of yours. While he lay chest down on the floor, your legs were lazily propped over the small of his back. Your own back was supported by a pillow against your bed frame, comfortable enough, but you were starting to ache. Yuji wittered beneath his breath, he looked sweet when he tried to concentrate; his eyebrows furrowed and his nose wrinkled, but it was the way his tongue poked over his top lip that made you giggle.
“Stop,” he groaned, “this is hard.”
You cleared your throat as you closed your book, placing it on your lap.
“Which question is it now?” you asked, lifting your legs off him.
He grumbled incoherently, flipping the same page back and forth. You shook your head and shuffled next to him, straightening out your skirt as you brought your knees together to retain some modicum of decency. You leaned your weight against your left hand and softly patted Yuji’s head with the other.
“Uhm,” he mumbled, “still on the first one…?”
“Yuji-Kun,” you sighed, “have you been listening to a word I’ve said?”
He looked at you through his peripheral vision while his mouth fought against a nervous smirk. You playfully tapped him against the side of the head. Yuji feigned injury, holding his head and rolling onto his back; you were trying so hard not to laugh as he rolled about, wailing dramatically.
“You’re such a baby,” you told him, throwing the textbook to the side.
You watched as he stopped and spread his limbs out like a starfish, he turned his head in your direction.
“Says the little Princess,” he retorted, he flashed a grin when your cheeks flushed a pretty shade of pink.
He loved rendering your speechless with the utterance of a single word. To everyone on the outside, you and Yuji were this cute, Hallmark-movie, high-school sweetheart-type couple, barely even kissed, blushing at the sweet whispers you exchanged; how wrong they were.
Those sweet whispers that made you blush wildly were due to Yuji sharing with you his demands for you that evening—because you would always be his good Babygirl, his good little Princess. They would never see him grope you beneath the lecture hall desks, purposefully dragging you to the back. He’d ignore you as you cried into the sleeve of your sweater while his fingers fiddled with your sensitive little bud behind your underwear.
He rolled onto his side to prop his head up with his hand, you brought your hands up to cover your flushed cheeks.
“Hey,” he was trying not to laugh, finding your bashfulness absurdly loveable, “why don’t we take a break?”
A squeak escaped through the fingers of the hand that covered your mouth. Yuji awkwardly shifted onto his hands and knees, crawling toward you. When he sat up next to you, he swung his legs around to place them on either side of you; trapping you between him and the bed frame.
“Now who’s the baby?” he cooed, teasing you more by poking your hands playfully.
He laughed at your attempt to look annoyed, it was wasted. You resigned, watching as he began to lean into you, his hand pressed against the back of your head and his lips brushed against your ear.
“Or should I say,” his whisper was a low growl, “Babygirl?”
“Yuuuuuji,” you were whining as you squirmed between his legs, “you’re doing this on purpose.”
The warm breath expelled by his chuckle brushed against your neck. You felt the grip he held on the back of your head fall to your wrists, you didn’t fight him as he pulled your hands from your face. You knew he got off on how bashful you always were, and maybe you played into that a little, he felt the hot flush of your cheeks radiate against him.
He could devour you so easily.
You felt a thumb press hard against your chin, pushing your head right back. A pitiful laboured noise escaped your mouth, now pushing his palm against your throat. It wasn’t quite enough pressure to stop you from breathing, but enough to cause you discomfort. Enough to satisfy him. For the moment, at least.
“…ji,” you were fortunate enough to be able to squeeze the last syllable of his name.
Using his free hand, he kneaded at the delicious pudge of skin that poked out above your slightly-too-tight thigh-high socks. They were just a part of one of your many little uniforms reserved only for Yuji, and today was one of his favourites; a just-tight-enough shirt opened enough for your delicate, frilly lingerie—of his choosing, of course—to peek out, paired with a simple, pleated skirt.
You were ever so grateful when he lightened the pressure on your larynx, allowing you to urgently drag in a deep breath. But it was mere seconds before you were gasping and panting, succumbing to his will as his fingers pressed gently against the damp cotton of your panties.
“Finally,” you heard him say, the lowered tone of his voice triggered your flight response.
“Yu-Yuji?” you whimpered.
“Yuji’s not home right now, Princess,” he declared, “it’s not fair that he gets to have all the fun anyway.”
“Su-Sukuna, please,” you whined, tilting your pelvis back in an attempt to escape his roaming fingers, he only pressed against you harder.
“Why don’t you let me take you for a ride, babygirl,” as he said it, he dragged his finger downward, following your sweet, little slit beneath your underwear.
“You p-promised you wouldn’t,” if it wasn’t for the fact that Sukuna was so close to you, he never would have heard your feeble pleas.
“We all promise things we don’t really mean,” he groaned, removing his hand on your throat.
Sukuna smirked all the while you gasped for air—once again—and then whimpered, the focus in your sight made everything soft, your head felt full of cotton wool. Sukuna sniggered, the dumb, heavy-lidded look on your pretty, little face was nothing less than perfection. He pressed his fingers a slightly bit harder against your clit, inhaling sharply when he pulled strangled little mewls from behind your slightly parted lips.
Sukuna was more than a little fond of Yuji’s choice of mate, he’d been waiting far too long for this opportunity and he wasn’t going to squander it.
He was going to savour every moment.
“Let’s see,” Sukuna contemplated, relieving your clit of his fingers. He’d want you to beg for it, prove just how much of a needy little whore you really were; he’d have you screaming his name soon enough.
You whined at him as his hands crept along the outsides of your thighs, under your skirt, grabbing hold of your shapely hips. He ignored your cries while he pulled you toward him, your skirt now ruched above your waist.
“C’mere,” he grunted, jostling you with some force when you didn’t move quick enough for him.
From your position—your head now propped where your back had been, Sukuna suspending your arse with his large hands—you could almost pretend that it was still Yuji. It was still his body after all, right? Your eyes passed over the dark lines that only Sukuna had—you always thought they looked like tattoos—and the closed, second set of eyes. Those eyes unnerved you, scared you. You dropped your gaze.
You didn’t ever think you’d have to face this situation, Yuji had reassured you time and time again that he had control of Sukuna, that he wouldn’t be able to take over when things got hot and heavy between the both of you. Now, you supposed Sukuna had lied about being compliant the entire time.
Sukuna continued, “I demand a taste of this—“ he yanked your underwear down your thighs, pulling a little too hard on the waistband, “—sweet fucking cunny.”
Dumbfounded, you were only able to watch him with curious, wide eyes as he moved your legs to benefit him while he struggled to remove your underwear. He was clearly getting impatient, throwing your soaked underwear over his head and across the other side of the room.
Sukuna let out a long, deep moan, as he shuffled himself back. He brought your legs down, pressing his muscular upper-arms against the back of your thighs; this was his way of stabilising you while having both of his hands free.
With his biceps pushing into your thighs, you yelped as your neck was forced into an uncomfortable position. The top of your head pressed against the base of the bed while your ear squashed into your shoulder; you scrambled to hoist yourself up, pushing your palms against the floor.
“Ah-ah,” he growled, yanking you down by the hips.
Sukuna mumbled something, you may not have been able to hear it, but your widely spread cunt certainly felt him say something. He brought the index finger of his right hand up to hover just out of reach of your presenting hole; raising his gaze to catch you looking at him--your chest heaving with your gulping breaths, your eyes almost entirely closed, with your tongue gently lolled out over your bottom lip--he certainly hadn’t expected you to submit to him like this so easily.
“I can see why Yuji likes you,” Sukuna mused, you gasped loudly when his thick finger penetrated you for the first time, “a needy little bitch in heat, like you?”
He let out a satisfied groan as you convulsed against him, nowhere for you to go as he twisted his finger, left to right and back again, fucking you with little care as his thrusts became almost violent. You cried out when he began to hit his palm quite forcefully against your clit with each thrust of his finger; Sukuna’s dark eyes glared up at you, his thick brows pulling together in the middle of his brow while he snarled at you.
You really were trapped.
“I happen to know you like it rough,” he was smirking, the loud, wet sound that came from between your legs as he removed his finger with a yank make you shrink beneath him.
“But, let’s get one thing straight,” he continued, moaning while he sucked at your sweet juices that soaked his finger, “your little Yuji-Kun won’t ever compare to a demon,” Sukuna watched the panic set in your eyes, felt your thighs shaking against his arms as he angled you up.
“It’ll be so delightful and easy, making you teeter on that edge,” he snarled, “between pain and pleasure until I see fit.”
You yelped uncomfortably when the pad of his heavy thumb pressed into your clit; you heard him chuckle above your cries, pressing against it harder. Sukuna pursed his lips against your inner thigh. You felt his smirk against your skin when his thumb quickly shifted from your clit to your hole; it was without warning, your slick allowing him to pull in and out with ease. But the intrusion made you shudder, followed closely by an uncontainable wail.
“Oh, Princess,” he cooed, talking into your thigh, “you’re going to make over-stimming you so much fucking fun.”
“Wh-what do you mean?” it was a pitiful attempt at finding your voice.
Sukuna either couldn’t hear you or at the very least, he didn’t want to hear you. He dragged his tongue along your delicate skin, playfully nipping at you every few inches.
Oh, how it amused him when you squirmed, afraid of his real bite, perhaps? The thought excited him.
You continued to whimper while Sukuna roamed your thighs, but when he flicked the tip of his tongue across your clit—fucking you with his thumb, his fingernails digging into the flesh of your arsecheeks—you brought your hand to your face, biting down on the flesh of your wrist.
Sukuna ignored you, giving attention to your throbbing clit, using his free hand to spread your lips just a bit more, enough for him to sink his lips down and around you. He loved when you made those whiny, little bleats—so pathetic, so fucking easy.
But, no, this wasn’t enough for Sukuna. He jerked his thumb out—your walls quivered around the empty space—and replaced it with his tongue; he groaned loudly as he sloppily lapped at your dripping, wet cunt.
Crying into your hand, still biting down on your already raw flesh, you felt the pull of your hips, ready to spasm with the release that was building up within your core. Sukuna masterfully worked his way around your insides, tensing the tip of his tongue to satisfy that sweet spot within you.
“Cum for me, Princess,” his deep voice was cast even lower as he growled as he spoke those words, commanding you; you felt a pressure within your pelvis vibrate and coil.
A pretty, choked sob found its way behind your lips as you relaxed your head to the side. The arm you had been using to silence yourself came down on Sukuna’s head so hard he scratched at your outer thigh; that would surely leave a mark. Whether you were willing to admit it or not, the thought excited you, you wanted him to hurt you.
Sukuna seemed frustrated when you didn’t obey his demand.
“I said fucking cum for me, Princess,” he snarled, firmly placing his hands on either side of your arse. You gasped, feeling the sting of him driving the points of his nails into your flesh. “I won’t hesitate to hurt you, y’know,” he continued in between tending to your soft, little cunt, “but I get the feeling you’d—“ he huffed, driving his nails into you, eliciting a strangled, wailing moan from your lips, “—like it.”
A whimpering, twitching mess was all you were beneath Sukuna’s grip. You heard the sloppy, wet noises combining with his hungry moans, tasting as much of you as he possibly could. Leaning back onto his knees, Sukuna noticed the bright flush in your cheeks.
“Sweet, little thing,” he laughed, “look, she’s embarrassed.”
Sukuna delighted in having you as his play-thing, but he wasn’t quite done with you yet. While he stared at you with his impossibly dark eyes, you heard the distinct jostling of a belt being undone; you heard it land with a thud when he discarded it to the side, triggering your body to shudder once more.
He wasn’t impressed with you when you lowered your gaze away.
“No, no, no,” he chuckled, “you will return the favour, Babygirl.”
Your heart beat wildly against your chest, your breathing was nothing but desperate, clamouring gasps as he hoisted you by your hair. Your protesting cries meant nothing to him as he effortlessly pulled you to your knees and the sight of your eyes brimming with tears amused him all the more.
“You’d do it for him, wouldn’t you?” he gave an inflection to his voice, trying to mimic Yuji’s, “It’s still his body, right?”
Sukuna’s grip on your hair tightened while he fiddled with the zip of his trousers, you felt helpless, watching as he relieved his thick, hard cock from its clothed prison. It was Yuji’s body, but like this—when Sukuna felt the need to barge his way in—it was his, not Yuji’s.
“Isn’t it?” he spat, pushing you down toward his crotch, cock in hand.
You may have been too shocked to form words, disjoined syllables tumbling from your lips, but not shocked enough to resist him. You didn’t recoil when your lips pressed against the swollen, wet head of his cock, as he brushed his pre-cum across your lips. In fact, you were eager, Sukuna laughed when you parted your lips, ready to receive him.
“See, it’s not that bad, is it?” he mused as he tugged your head back to look up at him.
You heard him stifle a low growl, looking up at him with your pretty, glassy eyes and your puffy, pink lips.
Whining at him as you placed your hands on either side of his muscular thighs, you were a desperate little pet eager for master’s attention. You didn’t care that he held your weight by your hair, it didn’t matter that it hurt. You didn’t care how aggressive he was; it didn’t matter when it felt this good.
“That’s it,” his smile was devilish, allowing you to lower your head into his lap on your own terms.
When you moved Sukuna’s hand away from his cock, he let out a chortle that made your heart flutter. He was gentle while you teased the aching head of his cock. You were ever so pleased with yourself when you pulled guttural, feral moans from his lips; it was your turn to tease Sukuna. For however long he might allow it, that was.
Which wasn’t long at all, it would seem.
Sukuna was impatient and you were taking far too long, he wanted his dick rammed as far down your throat as he could, and he would. He wasn’t being gentle now, not when he pushed your head down onto him. When you let out a surprised yelp, he took the opportunity to take advantage.
“Fuck,” he hissed while you gagged on the intrusion of his length.
Your throat felt raw, there was no niceness about him now as he held you down. You were sure he would be smirking as you convulsed within his grip, feebly attempting to push against his tensed thighs with very little effect. Yuji might be rough with you, but Sukuna was on a different level, and you quickly understood just how utterly useless any and all attempts to save yourself would be.
It’s all fun and games until someone gets hurt, and you knew—for certain—that someone was going to be you.
You closed your eyes and held onto his thighs so tight your knuckles turned white; it was the only thing you could do to distract yourself at that moment. The tears he’d forced from your eyes dripped onto your chest with your clumsy movements. You let out a wail of relief when he pulled you away, even just for a moment, it was welcomed.
"There's a good girl," he grunted, admiring the spit that dribbled down your chin, "there's my good little Princess."
Your moan at his words was cut off by a cruel shove of his hand; you gagged under the duress of him ramming into the back of your throat. He didn't care that you choked and spluttered beneath him, in fact, you knew it excited him; the way his cock twitched with each uncomfortable noise you made told you everything.
Every bone in your body screamed at you to submit to him, you would hope it would be less humiliating than this. Sukuna was surprised when you fell limp within his grasp and jerked you back once more.
“I wasn’t sure I’d break you so easily,” he chuckled, raising his free hand to your tear-stricken face.
You shuddered when his thumb stroked away at your wet cheek. You kept your eyes closed as his hand snaked its way across your face and down to your mouth. He tightened his grip on your hair as he held down hard with his other hand.
Your eyes darted open, Sukuna was a God looking down upon a mere mortal.
He hissed, you felt a heavy pressure against your lips as he used his hand to push you back against the pillow still propped against the bed. He was quick, untangling his hand from your hair to rest it on your inner thigh. He was laughing as his fingers tightened around your thigh, claws pinching at your flesh.
“Open wide, Babygirl,” baring his teeth at you, he looked maniacal, his hulking shape looming over you.
You sobbed helplessly as the mouth on his palm opened up, summoning a tongue that successfully infiltrated your mouth with very little effort. He laughed as your pretty, flushed face twisted, breathing frantically through your nose.
You were unable to make out the words he growled while he dragged his claws along the tender flesh of your inner thigh. The games he’d played with your throat, and consequently your oxygen, had dulled your senses—all except the ones that mattered, of course.
The bottom of his palm hit hard against your abused clit and your eyes widened with realisation. Sukuna smirked, both hands pressing so impossibly hard against both sets of your lips as he leaned into you.
“Just a little more,” he growled, “and then you’ll be ready for me.”
There was no time to think before the hand at your mouth pushed your head back, the finger and thumb on either side of your nostrils were dangerously close to completely restricting your airflow. Another tongue infiltrated your aching hole, he laughed at you as you convulsed beneath him. He allowed you to shake your head from side to side but nothing more, he found your efforts at yet another struggle tempting.
Your hips bucked defiantly beneath his hand as he bore against you. You whimpered against the tongue at your mouth as the one inside your twitching hole tickled against your most sensitive spot. Sukuna brought his face down impossibly close to yours, now gently grinding his palm against your clit; the only thing you felt were tight shocks that battered away within your core.
Sukuna gripped your face with his fingers, careless as his claws almost scratched at your face. When your head was brought up to meet him, your noses touched. It was unnerving.
You felt Sukuna’s tongues retreat. You were conflicted when you felt the gnawing ache of emptiness that was left behind. Formulating thoughts seemed impossible, coherency was nowhere to be found. With heavy-lidded eyes, you lazily watched as Sukuna knelt back.
It was cute, the way you opened your legs even wider for him. It wasn’t enough for Sukuna, nothing ever seemed enough for Sukuna. You felt his clawed hands grip the underside of your tender thighs; your breath shuddered, feeling the wet head of his cock bump against your widened hole.
“Good girl,” he breathed, “open wide.”
There was no other warning than his words as he shunted his hips forward, you moaned low in your throat—a strangled, feral noise—as your dripping wet cunt enveloped his throbbing length with very little ease.
“See,” he grunted, tightening his grip on your thighs, “I can be kind—“ he pulled his entire length, your hole quivered at the empty space, “—when I want to be.”
You wailed as he bottomed out against you, digging his claws into your flesh hard enough to draw blood as he frantically thrust. He’d been patient long enough but, while you’d been a good girl and indulged him, playtime was over.
Your head whirled and your limbs were numb. The only nerves that you felt any connection to were the ones in your pussy, the ones that made it possible to feel every protruding vein of his achingly hard cock The nerves that made it possible to feel every twitch it made as Sukuna put all his weight into you. He grunted, pushing back on your thighs, you yelped when he folded them against your stomach.
Sukuna delighted in hearing the moan you gave him after yet another deep, unrelenting thrust, his pelvis grinding roughly against your clit. You found yourself unraveling beneath him, you no longer felt within your own body.
“Yuji,” you mewled.
It was an easy mistake to make, a mistake that Sukuna did not appreciate. He laughed down at you as he picked up his pace. An unrelenting pace that shunted your body with each and every thrust. A pace that made you see stars.
“Silly little bitch,” he growled, spitting on your cheek, he was surprised when you let out a gasp of arousal, “say my name.”
He watched you convulse beneath him, felt you writhe and twist in his arms. It was delicious. The way your cunt clamped on his cock, tighter and tighter, and harder and harder until your cervix felt bruised.
“You’re mine right now, Princess,” he told you breathlessly, “Say it.”
You felt his spit hit your face again and your pelvis tightened. Things like that were supposed to feel this good, and for a brief moment, an internal struggle between arousal and embarrassment took place. Your arousal when Sukuna spoke.
“Say my fucking name,” was his final demand, but you could only cry out nonsense, “Say it!”
“Su-Sukuna!” you cried, obliged to obey him.
You were rewarded with the relief of Sukuna removing one of his hands from your thighs, too fucked-out to move—or care—your leg still rested against your stomach. He bared his teeth and brought his hand back; you were astonished that he never lost his momentum.
He grunted as he breathed.
“That’s right,” his voice began to waver, close to his own climax, “good girl.”
You could almost believe you weren’t just a piece of meat to him, the way his tongue wrapped around the words he used could make anyone feel special. But you were rudely reminded this was Sukuna, not Yuji, when his swung-back hand collided with your thigh.
The Earth itself could have shattered at that very moment, and all you’d feel would be him; you thought yourself lucky enough to remember your name.
“Good—“ he grunted against your arching hips, begging for more you couldn’t possibly take, “—girl.”
Sukuna juddered on top of you, within you, while his claws made their final assault on your skin, while he buried himself as deep within you as possible. You writhed and mewled beneath him, your hands grasped at the carpet, desperate to hold onto something while the pressure of his hot cum filling your battered cunt overwhelmed you.
There was a faint sting that broke through the pleasure as he continued to roll his hips against you, gently for the time being, now that he was spent.
It astonished you how quickly his breathing returned to normal while you struggled to draw any breaths that felt satisfying, still recoiling and twitching. You could speak only broken gibberish.
Sukuna lowered your legs, you wished he’d more gentle; you winced as your hip joints creaked having been forced into such an uncompromising position. You felt the weight of his chest press against yours and his nose nuzzled gently against the crook of your neck.
There was a tense moment as you lay under him as your senses regained consciousness.
“Yu-Yuji?” you whimpered, tears threatened the edges of your eyes.
The pretty pink man who lay on top of you let out an angered growl, the hands that tightened around your wrists no longer had claws; there was care in the grip.
“I’ll kill him,” you heard him growl, his grip tightening.
“Yuji I’m—“ he didn’t leave you room to finish as he lifted his head, gazing down at you with furrowed eyebrows and bold, dark eyes.
“But first,” he told you, looking down at the mess between where your bodies connected, “it looks like I have to punish you first.”
He looked back to you—was he enjoying this?—and cast a dirty smirk at you.
“Because despite what Sukuna may think or say,” he continued, looming closer to you, his cock twitching with every word, “you haven’t been a good girl, have you, Princess?”
Your lips may have been moving but your voice was inaudible.
“You can thank Sukuna for one thing though, Princess,” he growled, nipping at your neck.
His voice broke when he deliberately moaned in your ear, a sound that made you squirm with delight.
“There’s no more holding back,” was the last thing he said before raising your arms above your head and locking his teeth to your neck.