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Yuuji is tired. It’s not the tiredness that slowly drags its fingers over your eyelids and fills you with a weary ache for sleep; this is the kind of tiredness that nibbles at your sides and claws at your body. This is the kind of tiredness that leaves you heaving and gritting your teeth in frustration as you toss and turn, shifting until you grit your teeth and hide a scream in your pillow.
“Damnit,” Yuuji sighs, groaning loudly as he checks his phone, damn near blinding himself with the brightness.
2:25 AM.
That’s what stares Yuuji in the face before he slaps his phone back down on the nightstand, pulling his hands over his face and scrubbing up and down. His hands rush through his short pink hair, pulling the strands between his fingers before he allows his hands to flop down on the bed. Sleep is out of the picture for him, he can tell. Maybe he could wake Gojo-sensei and have a two-am uno duel; he was sure his Sensei wouldn’t mind. He could also go bother Fushiguro to summon his demon dogs so he’d have a buddy until the sun rose and he was able to bother Kugisaki without risking a nail to the eye.
Why did she even sleep with her hammer and nails under her pillow?
“Brat,” Yuuji almost flies off his bed at Sukuna’s sudden presence, heart smashing against his ribcage in fright. “W-Whu? The hell?” Yuuji stammers out, scrabbling for his phone. He snags his phone off the nightstand, flicking the lamp on as he does so.
Yuuji fumbles with his phone, once again blinding himself with how bright his phone is - why didn’t he turn that down? - before opening the camera feature, finding Sukuna’s lazy red eye and fanged mouth looking back at him. His mood sours slightly, already frustrated due to his lack of sleep. He doesn’t exactly want the king of curses yapping about how weak he is, unable to wrangle sleep, and how-
“Are you even listening, you damn brat?” Sukuna growls, pink tongue flicking over his fangs as his red eye glares into the camera.
“No, not really,” Yuuji huffs, staring at the small face - if you can call an eye and a mouth a face - on his cheek scrunch in annoyance. “Of fucking course,” Sukuna hisses, that irate tone common to Yuuji. He pays no real mind to it, raising one pink eyebrow as he yawns, interrupting whatever Sukuna is starting to say.
“Brat, will you just- Fuck it,” Yuuji can feel the irritation grow in Sukuna, feeling it in his bones, looking over to his right arm, which now bears Sukuna’s signature tattoos.
“Woah, woah, what are you doin-” Yuuji scrambles to try and find control, to shove Sukuna down into his weird, skull-filled realm or whatever, but he finds his body lacking the energy to do so. His control on Sukuna is usually air-tight, but it seems in his exhaustion, it’s starting to slip.
“Oi, what the hell? Sukuna-” Yuuji tries to fight it, to push his arm down as his phone drops from his hand. It crashes painfully against his stomach, the corner hitting his flexing abs and tumbling off elsewhere on his bed.
Yuuji digs his heels into the bed, trying to force the arm down, but his elbow buckles, and the added strength from Sukuna just isn’t helping.
Yuuji watches his Sukuna-possessed arm reach up in the air, flexing slightly and stretching claw-tipped fingers around. Yuuji can’t say he’s amused, glaring at his own arm. “What are you going to do now? Strangle me?” Yuuji bites, eyelids fluttering with tiredness, but over-exhaustion pulls them open again.
“Lose the bite, brat. I’m doing you a favor,” Sukuna growls from his cheek - right this time - which makes Yuuji raise his eyebrow.
The Sukuna, king of curses, doing him a favor?
Is Yuuji actually dreaming?
“I can hear your thoughts without you speaking, brat. Knock it off, or I’ll just leave you high and dry,” Sukuna grumbles, making Yuuji raise both eyebrows this time. “What do you mean by tha-” Yuuji doesn’t have time to get his question out fully before his Sukuna-possessed arm dives under his waistband and slithers into his underwear. Yuuji watches in shock as his possessed arm settles, claw-tipped hand grazing his inner thighs as a tongue - t…that’s Sukuna’s tongue - licks over his cunt, making his head slam back and his mouth open.
Yuuji doesn’t scream, doesn’t fight, doesn’t make a sound. He can’t, how could he? His literal worst enemy, who torments him on a daily whenever the annoying curse feels bored, is licking his cunt. Slithering up and down, that fat, textured tongue does things to Yuuji that he does not feel proud of.
“S-Sukuna-!” Yuuji grits out, trying not to sound like the curse’s tongue is doing things to him. Every lick and graze of that rough, textured tongue that focuses on his clit makes him shake, toes curling uncomfortably hard. “S-Sto-”
“Stop?” The mouth on his cunt disappears, leaving Yuuji gasping and grasping at the sheets, eyes pulling wide at the brutal reality that he already misses that textured and deft tongue already. “Fine then, I’ll stop,” Sukuna hums and Yuuji is falling for the game that is so blatantly staring at him. The flashing neon lights are right there, blinding Yuuji, but the pleasure and burning throb of his clit is too much.
He hasn’t moved his arm even as the tattoos melt away, showing Yuuji’s pale skin now unmarred by the thick bands of ink.
“Y-You’re dirty… Sukuna,” Yuuji wheezes out through gritted teeth, staring at the ceiling. “Says the one who is getting off with my help, the king of curses helping a stupid brat,” Sukuna huffs, taunting. That tone angers Yuuji, but shame floods him, overwhelming that twinge of anger.
And, well… Sukuna’s right, - god, that’s a hard sentence to utter - Yuuji is getting off to his deft tongue.
“And you’re right, kid, I play dirty. I’m the King of fucking curses, but right now, I’m the one getting your annoying ass off,” Sukuna grunts, suddenly muffled as his mouth returns to the middle of Yuuji’s palm, twin fangs planting themselves on either side of Yuuji’s cunt, biting gently, enough to make Yuuji’s thighs shake and his breath to hitch dangerously harsh, feeling that sharp and deft tongue start to circle his clit once more, paying special attention into sucking it deep into that seemingly endless mouth.
The suction drives Yuuji insane, free hand slapping over his mouth to stifle his moans because god forbid he wakes any of his dorm neighbors.
Yuuji’s thighs close up, snapping together after a particularly harsh suck, rolling onto his side as he whimpers. Sukuna is good, annoyingly so. Yuuji can feel himself coming apart, mouth opening against his palm to openly pant like a bitch in heat. His wrist is squeezed between his strong tights, toes curling, and muscles spasming.
Yuuji feels as if he’s being pulled apart at the seams with every suck and torturous lick. His tongue hangs out of his mouth, dribbling a mess of spit down his cheek and chin, tears collecting in his pink lashes, clumping them together.
“S-Sukun-” Yuuji whimpers out, unable to stop himself. His nose scrunches hard as he feels himself being licked from hole to clit before those sharp, dangerous teeth graze his clit.
Yuuji is mindless in the hold of his pleasure, rough fingers delving into his cunt at a somewhat odd angle, shoving deep and angling up hard. They aren’t perfect, and they barely scrape his g-spot, but it’s enough. Sukuna doesn’t seem to mention or notice the fingers fucking in and out of his cunt, sloppy sounds hidden behind loose shorts and his bedding. It’s not much, but it muffles it enough. Yuuji groans sharply, breath hitching as his thighs shake. They jerk and tremble against his bed, sending the wood slats under him rattling annoyingly, but Yuuji could care less. His ears begin to ring, pushing all outside noise out, making Yuuji shake at the silence.
It feels good, hitting deep with his fingers and having Sukuna suck and lick at his clit, swirling around the throbbing and plump gland hidden behind a dripping hood. He feels insane, breath hitching every other breath and eyes starting to roll into the back of his head, losing himself. It’s been a while since he’s gotten off - even before Sukuna had invaded his body and made a home in it, too busy with the occult club. He’s forgotten how good it feels to get off, that stomach-churning pleasure that makes him curl into himself, barely stifling moans back. Sukuna’s better than any shoddy, off-market toy he’s ever bought. They did the job, but they weren’t good enough. But Sukuna is good enough, better even. He doesn’t just get the job done; he pushes him to completion. That familiar core-locking pleasure burns through Yuuji as his fingers still, halfway through a hard thrust in, mouth sucking in a breath as best it can being pressed against his palm.
“S-Suku…gnha-” Yuuji hiccups out, core seizing up tight enough to hurt as the pleasure wracks his body. It shakes his entire bed, his body rushing with a thrill he wishes to taste again, drink it down like a cold cola, and feel it fizzle against his tongue. It feels refreshing and absolutely crushing at the same time. The weight of his orgasm crashes into him, pushing him deeper into the mattress till he’s sinking into the wood slats. His body hurts, but it also feels too good to let go. Halfway through his orgasm - with Sukuna’s deft mouth never stopping, no matter how much Yuuji shakes - his fingers start up again, pushing through his quaking walls to find his g-spot, sending him into another leg-shaking wave of his orgasm. His cunt squeezes out a wave of slick, wetting Yuuji’s hand and wrist, and he continues to slowly fuck his fingers in and out.
“C-Can…ahh.-’t…” Yuuji whispers out, uncaring of his words as he continues to pump his fingers in and out, and Sukuna continues to lick him through the bone-shaking orgasm he’s just experienced. He doesn’t wish to leave this bliss he’s found himself in, clouding his brain and fuzzing his vision up.
What brings him out of it is a sharp bang on the wall - he can’t tell from which wall, Kugisaki’s or Fushiguro’s - startling him out of the cloud nine he’s found himself in. His eyes pop wide, and his breathing hitches, gritting his teeth as Sukuna just continues to lick at his clit, even as the red-hot burn of overstimulation takes place.
“‘M… ‘M done,” Yuuji whispers, too tired to pull his voice above a whisper. He pulls his hand out of his pants slowly, gritting at the uncomfortable stick of his cunt against his underwear, watching Sukuna’s mouth lick at the slick covering his hand. He cringes softly but pulls his other hand out of his cunt, wiping it haphazardly on his sheets.
He’ll clean them later.
Yuuji sighs as he strips himself of his shirt, stumbling out of his shorts and underwear as he walks to his closet. His clothes had clung to him thanks to the sweat he produced, making him grumble sleepily as he pulls a new pair of everything on. His sleepy stumble back to his bed is less than elegant, throwing himself onto it.
“Sleep, brat,” Sukuna speaks softly, softer than Yuuji’s ever heard him talk. “You and your fucking brain are annoying, fall asleep and give me some peace,” With that, Sukuna goes quiet, and Yuuji cannot help but sigh softly, pulling his pillow under his head as he closes his eyes.
Sleep comes easy this time around, sinking under that soft cloud of darkness.
-
“Yuuji-kuun! Good morning!” Gojo-sensei’s cheery voice welcomes him into the dorm kitchen, the sweet smell of fluffy pancakes permeating the air. “Good morning, Gojo-sensei!” Yuuji chimes back, feeling like he’s floating through the dorm. He feels too light on his feet, smiling happily as Gojo-sensei plates two fluffy pancakes up for him, drizzling Nutella and a handful of strawberries over it before sending him on his way.
Yuuji parks himself in a chair at the same table as Kugisaki and Fushiguro, who stare at him as he cuts into his pancakes.
Yuuji pulls a piece of pancake into his mouth, looking up to find two sets of sharp eyes looking at him. His body breaks out into shivers, trying not to show anything on his face. “Guys?” Yuuji asks, swallowing his pancake piece.
“Sleep well, Itadori?” Fushiguro asks, side-eyeing him over his phone. “Uh…” Flashbacks to what had happened just six hours ago flash in Yuuji’s mind, as well as a hard pulse rushing through his clit. “S-Sorta?” He chuckles awkwardly, shoving the cut-up slices of pancake into his mouth rapidly, nearly choking as he swallows them down.
“I-It was so good, Gojo-sensei! Thank you for the meal; I’m going to go train! See you guys!” Yuuji laughs, swiping his water bottle off the counter and dashing out the door, barely remembering to grab his shoes on the way out, running barefoot to the training field.
He has about an hour till anyone comes after him… Maybe he can convince Sukuna to work his tongue on him again…
Y’know, for, uh… purposes.