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Every negative aspect of his former being birthed the curse he is today. A being solely existing for leisure, deriving that pleasure from the anguish of others. Whether he was the one inflicting that pain, or just solely being witness to the despair that can overcome humans drastically.
He liked the frightened look in the Megumi boy’s eyes when he clawed out his vessel’s heart. His laugh held pure delight when his vessel pathetically begged him to heal his worthless friend, offering up his entire being for foolish fodder, foolish enough to be influenced by a childish curse. Sukuna almost felt insulted that his vessel’s willingness to give himself fully to him was only for the benefit of someone so inferior he was worth neither of their time.
But he’d never miss a chance to break Yuji’s spirits.
His vessel’s pathetic. Worthless. Foolish. Naïve. And more annoying than anything. That cheerful personality is disgusting and unbearable to listen to. Save lots of people. As if his very existence wasn’t a threat amongst everyone he walked alongside. Sukuna wanted to remove the smile out of his voice. He wanted to rip his laughter out of his throat. Maul those useless hopeful words and aspirations right out of his tongue, until he’s left torn apart, drenched in that sweet crimson essence, leaving nothing left but a tattered mess who can no longer speak, can no longer hope, can no longer say those foolish things that are impossible so long as they are tied together.
Only so he could break him some more.
Cradle that pretty face, run a finger across the thick scar down his nose, lick every drop of his delectable blood, drink in his whines, pin him in that red sea and make him have no choice but to take what Sukuna’s so generous to give.
The height of his time inside Yuji was Shibuya. After months of being suppressed by the boy, he was finally free to remind Yuji who exactly the King of Curses was, and why laughter should only come to him maniacally. There’s no room for benevolence and delight when the soul right next to yours embodies malevolence and despair. He wants this body to remember the rush of cursed energy this sinister. He wants it to remember the slice of cleave and the destruction of dismantle. He wants it to remember the art of painting a domain on the air, the art of slashing everything that paintbrush touches to pieces.
He wants this body to remember the essence of him. He’ll make this body his. He’ll ruin the soul he’s connected to. He’ll patiently pick at the strings of Yuji’s heart, snapping them one by one until the kindness in Yuji’s eyes is dead, replaced by the same nasty wickedness in Sukuna’s eyes.
I’ll ruin him. I’ll turn this brat into me.
Sukuna utters his curse to Yuji when they’re in solitude. Yuji spirals when alone. Sukuna can feel it. There’s no one to distract him from his miserable reality. The miserable reality that he is not Itadori Yuji, he is Sukuna’s Vessel. Sukuna preys on this feeling.
You’re mine. Your future, your body, your hopes, they’re all mine. You belong to me. Everything about you belongs to me.
Sometimes Yuji fights back, sometimes he prefers to stay silent.
Ever since Sukuna aided the devastation in Shibuya, the two have not spoken. Yuji has yet to be alone. But despite the fact that he’s accompanied, Yuji’s strengthening despair still stays so potent within their body, the air in Sukuna’s domain is thick with it. Sukuna loves it. Basking in his vessel’s anguish is exhilarating. In every word Yuji has spoken over the past few days, there hasn’t been a hint of a smile in any of them.
Good.
Give up hope. Reach your breaking point. Sell yourself to me. Kneel at my feet. Beg me to fix you.
After all, no matter what the future has for them, there is not one without the other.
Sukuna’s main entertainment comes from tormenting Yuji himself, and he can’t have the brat thinking he’s free from his voice for a short while. It’s clear that it will be a while before Yuji’s alone again, so if he can’t curse the boy outside, then he’d bring him inside.
Yuji’s on the verge of falling asleep while that weird curse who swears he’s his brother watches him. He’s another idiot in this harem of idiots surrounding his vessel, so Sukuna pays him no true mind. The second Yuji officially drifts off into sleep, Sukuna pulls his consciousness down into his domain, watching as the boy gracelessly falls into the red water.
Sukuna remains silent atop his throne of skulls as Yuji makes an irritated sound before standing up and adjusting his clothes. It’s only natural he immediately turns to the throne his gaze is all too familiar with and focuses those brown eyes into a disdainful glare toward the curse. Sukuna can’t help but smirk at the violence in those eyes, and at the healed scars that have made space on his face.
Sukuna has no intention of healing those scars into disappearance, either.
“Why the hostile look?” Sukuna teases.
Yuji’s glare turns into a nasty scowl, “Cut the shit. What the fuck do you want?”
“Aw, are you going to pretend you haven’t missed me for the past few days?”
“Missed you? It’s not like it’s been any different. Even in silence you manage to torment me.”
“Well, I missed you.”
Yuji’s eyes widen before his scowl turns incredulous. “What shit are you trying to pull right now?”
“What? Is it really that much of a surprise that I’ve been bored without reminding you of how worthless and pathetic you are?”
Yuji rolls his eyes, “Oh here you go.”
Sukuna sits forward on his throne, as if trying to see Yuji’s face better and grins. “I wanted to see the despair and hopelessness on your face for myself. It’s not enough being able to feel it.”
A wicked smile finds itself on Yuji’s face as he braces himself for a fight. “Well, come see it up close then.”
Sukuna studies him for a few seconds before he deeply sighs and stands up. Instead of suddenly appearing in front of Yuji like he’s sure the boy expects him to, he slowly descends his throne of skulls, eyes boring right into Yuji’s. For a moment, the only sound in the entire domain is the sound of Sukuna’s sandals colliding with the vast number of bones.
The sounds of his steps are intercepted with, “You know, brat, you don’t have to pretend while you’re in here. It’s just the two of us.”
Yuji instinctually takes a step back, “Huh?”
“Aren’t you tired?”
Yuji’s eyebrows furrow even more, “…Huh?”
Sukuna smiles again, “Your despair is thick within the air. Your exhaustion is heavy amongst this domain. Why don’t you rest here?”
“You’re being weird.”
“And you’re being annoying.” Sukuna mutters as he completes his descent down the throne, finding himself inches away from Yuji. Yuji doesn’t back away, holding his intense eye contact with Sukuna, unflinching as Sukuna’s cold hand cradles his face.
Sukuna’s sharp thumb nail digs into the skin of Yuji’s cheek, breaking the skin enough to expose a small drop of blood. Yuji takes Sukuna’s wrist in a death grip.
“You’re half broken yet you’ll still be stubborn. What will it take for me to make you see that you’re turning into me?”
“Half broken? Turning into you? Not even close. I’d never be a piece of shit like you.”
Sukuna chuckles darkly, amused by his vessel’s denial. He brings his face even closer to Yuji’s, stopping at his ear, whispering, “Would you prefer I force you to see?”
Yuji shudders under Sukuna’s palm, but barks an incredulous laugh and says, “Right, and how can you do that, you cocky motherfucker?”
Laughing again, Sukuna yanks Yuji by his hair and throws him into the pile of skulls, thoroughly enjoying the way Yuji gasps from the pain from the impact, his face etched into a pretty grimace. Sukuna wastes no time, straddling him and taking hold of his throat, sharp nails digging into the skin, threatening to breach.
“Get the fuck off me!” Yuji yells as he claws at Sukuna’s arms, much to no avail.
Sukuna leans in until they share the same breath, able to see every detail of the eyes of the boy his soul’s intertwined with. “How can I do that? Is that a question you really want to find the answer to?”
Yuji’s glare doesn’t waver. “Fuck you.”
Ignoring him, Sukuna’s tongue darts out, licking up the tiny drop of blood on Yuji’s cheek, pleased by the sweet taste. He craved more.
Yuji thrashes under him, thrusting his hips in an attempt to throw him off but Sukuna easily pins his thighs to the water with his own, his hold on his neck unwavering. Yuji doesn’t give up his attempt to struggle, cursing as he tries. Sukuna’s sick of it. He yanks his throat and shoves his head back into the skulls, causing Yuji to cry out loudly.
“If you don’t think you’re like me, I’ll make you like me.” Sukuna’s free hand’s in Yuji’s hair, fingers running through the pink locks almost gently, as if he didn’t just slam the boy’s head into hard and dry bone. “People like us take what they want. What is it that you want, brat?”
“Just kill me. Let me go back to sleep, asshole.”
“After you understand who you belong to of course.”
“Don’t make me laugh.”
“Cracking your skull wasn’t enough to make you understand your position?”
“Do it again. And see what the fuck I say.”
Sukuna doesn’t hesitate to smash Yuji’s head again. He pulls Yuji’s face to his by his hair. “Well? Who do you belong to?”
Blood’s dripping down his forehead, matting his hair together, yet despite that, he’s grinning, “Not to a fucking curse.”
Arousal pools freely in Sukuna’s gut, having his handsome vessel under him like this, that wicked stubbornness so apparent in his eyes. This boy belongs to Sukuna. No one else. And he’d make Yuji understand that. No matter how many times he must shatter him, he’ll do it again and again until Yuji admits who he belongs to. And even when he does, he’ll break him some more.
Sukuna’s grin grows even larger, his hand running down from Yuji’s hair onto his face, pushing his thumb into his moist mouth. Yuji doesn’t hesitate to bite as hard as he can, hard enough to draw an impressive amount of blood. That sharp sting’s nothing to Sukuna, it only makes his arousal grow.
“Do you regret taking me in, brat?”
Yuji can only glower at him, thumb still in his mouth. Sukuna takes his thumb out and smears the blood on the brat’s pretty pink lips.
“I hate you.”
Sukuna doesn’t miss the way Yuji’s tongue licks the blood on his lips, nor does his cock.
“That’s not a proper answer.”
“Yeah it is.”
Sukuna’s hold on his throat tightens dangerously, causing Yuji to gasp for air as he starts clawing at his arms again. “Answer me properly.”
Yuji’s voice is hoarse, barely coming through as he says, “I did answer you. I. Fucking. Hate. You.”
Sukuna lets go of his throat. Removes his other hand from his face. He moves his thighs off of Yuji’s. He places his hands on either side of Yuji’s head and gazes down at him, almost bored. Far from it on the inside.
Yuji’s face is bright red from his efforts, lush lips still holding a smidge of Sukuna’s blood.
“You hate me?” Sukuna starts. “Then push me away.”
Yuji stares up at him for another moment, as if contemplating something. Sukuna resists the urge to ravage him right there. Sukuna’s eyes widen as Yuji harshly pushes him off, except forcing him onto his back, reversing their position. Straddling him, Yuji grabs a thick handful of Sukuna’s hair as tight as he can, and yanks Sukuna’s face into his, colliding their lips into a teeth smashing kiss.
Sukuna wants to laugh. He wants to cackle. Yes. Take what you want. Take. Don’t wait for them to give. Take.
Yuji’s lips are soft against his, despite the hard and violent press. It’s sloppy, it’s rushed. Yuji’s tongue’s in his mouth, exploring however he wants to. Their teeth collide sometimes, and they both nip at each other’s lips and tongues. It’s all good to Sukuna. So good. Way better than he expected.
He likes the throbbing pain of Yuji’s harsh grip on his hair. He likes the way Yuji’s other hand finds his palm, pinning it down into the water, their fingers laced together. Sukuna lets himself be handled, lets himself be used by the boy. The fact that such a pathetic boy has it within him to use the King of Curses for his own pleasure turns him on immensely.
He’ll let him have his fun for now.
Sukuna’s free hand is up Yuji’s jacket, caressing his back almost too softly for Yuji, if not for the sharp scratch of his nails. Sukuna lets his nails rip through the skin, prompting a small moan from Yuji right into his mouth. Sukuna needs to hear more. Yuji pulls away first, his intense eyes staring down at Sukuna.
Sukuna smirks up at him, red eyes filled with pure lust, whereas Yuji’s eyes are a dark mixture of lust and hate. Sukuna opens his mouth to tease him, but Yuji’s quicker.
“Shut up. Don’t speak.”
His voice is breathless, face flushed red, chest heaving. He looks so delicious in Sukuna’s eyes.
Sukuna cradles his face again and Yuji leans into the touch, “Who do you think you are, speaking to me like that?”
A small smile adorns Yuji’s face. He comes down again, lips barely touching Sukuna’s and whispers, “You.”
Sukuna’s erection painfully throbs as Yuji presses his lips to Sukuna’s. Too soft. Yuji softly kisses him a few more times, before licking into Sukuna’s mouth. Their tongues slide together a few times then Yuji withdraws his lips again. Heat courses throughout Sukuna’s body at the treatment, hands itching to just pin the boy down and have his way.
Yuji gives him another soft kiss. Sukuna’s starting to get frustrated. Another kiss.
“Brat—” Sukuna starts, roughly cut off by his own harsh groan as Yuji sinks his teeth into Sukuna’s bottom lip with all his strength, not letting up until that coppery taste fills both of their mouths. The severe sting and raw pain in Sukuna’s lip translates to pleasure, coursing through his veins like liquid heat. Yuji swallows the blood in his mouth, hands letting go of their grip on Sukuna’s hair and hand to pry open Sukuna’s kimono, feeling up his chest. Yuji starts licking up the mess he made in Sukuna’s mouth, giving soft little pleased moans as the warm liquid touches his tongue, his hips starting a slow roll against Sukuna’s.
Yuji gropes Sukuna’s chest while he moves his hips, that delicious friction having Sukuna shudder under him. Sukuna’s letting Yuji have his fun, but he doesn’t plan for it to last long. This is Sukuna’s domain, and Yuji is Sukuna’s prey. He’ll show Yuji that he belongs to him. But first he desires to see, to feel, whatever bite Yuji may still have within him.
Yuji continues to lick the wound he inflicted clean, sucking hard on Sukuna’s bottom lip, and massaging the soft flesh under his hands. His hands quickly work to completely open Sukuna’s kimono, fully revealing the entirety of his tattoo-adorned torso. His nails trail down the taut muscles, tracing every inch of the black ink. When he’s satisfied enough, Yuji withdraws again and sits up. Sukuna’s dark eyes remain locked on Yuji as he pulls his jacket over his head, revealing that well-built physique and pink nipples. Yuji’s rough hands run down from Sukuna’s neck to their rightful place on his chest, leaving a blazing trail of goosebumps in their wake.
“Enjoying this, whore?” His vessel purrs in a sickeningly sweet tone.
Sukuna cocks an eyebrow, “I’m the whore? Don’t get cocky, brat. Now get on with it.”
“Get on with what?” Yuji breathes out, ducking down to claim Sukuna’s neck, leaving open mouthed kisses and tiny sharp nips that have Sukuna trying to hide his panting. He is enjoying this. For his own reasons. Not because he genuinely enjoys being teased by this inferior brat.
He grins wickedly and pushes the boy onto his back, crawling over him and pinning his hands above his head.
A smirk finds itself on Yuji’s face, “Awe, you’re not letting me whore you out anymore?”
Sukuna’s sharp nails claw into Yuji’s wrists. “I could kill you right now. Send you back to your desolate reality. Leave you desperate.” He emphasizes his last point by shoving his knee against Yuji’s erection, at which Yuji whimpers. “Watch how you speak to me, brat.”
“Then do it. Am I really the only one that’s desperate here? Like you weren’t just panting under me.” A sweet smile accompanies his words which has Sukuna’s cock twitching.
Yuji winces as Sukuna’s left hand takes a harsh hold of his hair, pulling his face closer to his. Sukuna’s lips graze over Yuji’s as he utters ominously, “I indulge you once and you think it means something?”
“I’m the one indulging you!”
“Shut up before I change my mind.”
“Shut me up then—”
Sukuna gets him back, quickly tearing at the soft flesh of Yuji’s lip with his razor-sharp teeth, eliciting a shocked whine, letting the blood drip down the boy’s chin.
Yuji shut up for once.
Sukuna kisses those blood-stained lips, savoring how they push back. Yuji sighs, shivering as Sukuna starts to softly kiss his jaw, making his way down his neck. Sukuna lays scorching hot open-mouth kisses on the sweat drenched neck, Yuji under him desperately trying to grind his hips into Sukuna’s.
Yuji lightly knees Sukuna in his thigh, “Stop it, you’re being too soft.”
Sukuna gladly sinks his teeth deep within the boy’s neck.
“Ah! Fuck, yes.” Yuji groans. Eyes squeezed shut, he lets out a string of breathy moans as Sukuna grinds into him, sucking harshly on the gushing wound, moaning at the taste. Sukuna’s hand releases its grip on his hair, trailing down the hot skin of his torso, nails catching and breaking through the flesh, earning him a sharp hiss. Yuji arches into him when his fingers catch his nipple and begins to play, rubbing and pinching in a way that has Yuji biting at his swollen lip to keep from moaning.
Yuji grunts disappointedly when Sukuna removes his hand, opting to trail further down his waist. Sukuna makes quick work of Yuji’s pants, freeing up space for his hand to take hold of Yuji’s throbbing, leaking cock. Yuji bucks up into his touch with a moan mixed with “Sukuna!” that is absolutely the most pleasant music to Sukuna’s ears.
That sinful grin’s on his face again, watching every single movement in Yuji’s pleasured face as he twists his hand up and down his cock. Yuji’s gorgeous under him like this—face flushed, hard muscles and pink nipples completely on display, bloodied lips, bloodied bite marks on his neck. So gorgeous. All for Sukuna. All for him. Only him.
“Look at how pathetic you are, letting a curse slut you out like this.” Sukuna purrs in Yuji’s ear, not missing the tiny whimper nor the way Yuji’s cock twitches in his hand. “All those sorcerers with eyes hungry for you, yet you spread your legs for me. Are you not ashamed? What would your friends say?”
Yuji’s voice is breathless as he says, “Ashamed? Of? You’re fucking me, you should be honored.”
Sukuna sits up a bit, allowing him to manhandle his vessel, flipping him onto his stomach as Yuji gasps. He settles his weight onto Yuji, his erection pressing into Yuji’s bare soft ass. This time he has Yuji’s wrists pinned behind his back. He leans over his ear, “Don’t make me laugh. Honored? Honored to fuck what’s rightfully mine? What’s always belonged to me?”
Sukuna stuffs his fingers into Yuji’s mouth, as his mouth is their rightful place. Yuji immediately sucks, his velvety tongue lapping between the digits, his saliva giving them a heavy coat. Sukuna sticks his fingers as far as they can go, and Yuji takes them perfectly. Not a trace of a gag.
Sukuna takes them out, and Yuji’s breath hitches as Sukuna pries his ass open, massaging his rim. He pushes his finger through the tight hole, Yuji immediately tensing and clenching around him, sharply drawing in a breath.
“Whether or not this will be difficult is up to you. It doesn’t matter to me.” Sukuna drawls.
“Ugh, you are so annoy—” Sukuna shoves a second finger in his ass without warning, causing him to violently jolt. “Shit! What the fuck is wrong with you?”
“You’re just now asking that?” Sukuna asks as he begins thrusting his fingers in and out of the tight heat of Yuji’s hole. Yuji doesn’t respond, he can only groan as he takes what Sukuna’s giving. Sukuna moves his fingers even faster, plunging even deeper into him, until Yuji jerks with a hot and loud moan, his helpless hands forming fists behind him. Sukuna repeats this a few times, reveling in the sound of every passionate moan Yuji gives him as his ass grinds up into his touch, chasing him every time he pulls his fingers away.
He whines when Sukuna pulls his fingers out but Sukuna drinks in those whines with a deep kiss, Yuji craning his neck to give in to the heat of Sukuna’s mouth. Sukuna pulls his own erection out of his pants, so hard it’s painful and already dripping. He’s surprised he hadn’t shoved his cock into Yuji way earlier.
Yuji pushes his ass into Sukuna’s cock, eager to be fucked like the whore he is, but all he’s met with is a slap on the ass so hard it has him gasping for air.
“Be patient.” Sukuna demands.
Yuji’s voice shakes, all bite from earlier gone under Sukuna’s ministrations. “You’ve had me waiting long enough.”
Sukuna takes hold of his cock and presses the head into Yuji’s rim, who forces himself to relax. Sukuna then starts to push in, and then immediately snaps his hips to fully shove himself inside of Yuji, the latter letting out a loud cry at the treatment. Yuji’s fists curl even more into themselves, his knuckles turning white and nails biting into his skin.
Sukuna bites back a groan at the feeling of being enveloped in the soft and tight flesh, the heat almost being too much. He opts to kiss on Yuji’s ear, cooing, “I won’t make you wait any longer, brat.”
Yuji lets out a broken whimper as Sukuna pulls out, only leaving the head in before violently thrusting his hips, shoving past the tight resistance. Another loud yelp from the boy. Sukuna sets a brutal pace, not worried about whether Yuji’s whines are pained or pleasured. It arouses him all the same. Sukuna’s domain is lively with the sounds of Sukuna’s grunts, the sound of their skin slapping together, the sound of the water below them splashing on impact, and best of all, Yuji’s extremely dirty and obscene moans.
Soon enough, Yuji’s forcibly loosened up enough to make Sukuna’s thrusts easier. A particularly deep thrust has Yuji shrieking out, “Ah, Sukuna, there!”
Sukuna roughly grabs Yuji’s neck, squeezing hard and prompting a slutty moan from the boy under him. “And I should give you what you want? Have you been enough of a good boy?”
“Good boy? Am I not your slut tonight?”
Sukuna laughs in his ear, then whispers, “Sounds like good boy talk to me.”
He gives Yuji what he wants, fucking so hard and deep into the spot that makes him yell his name as if it’s the only word he knows. He keeps the tight hold on Yuji’s neck because he knows that’s what he wants. His other hands keep their hold on his wrists because he knows that’s what he wants. What he needs. What he deserves.
He deserves to be pinned down under someone extremely stronger than him, that someone being the one his soul is forever tied to. He deserves to be helplessly fucked, scratched, and bitten until he bleeds, held in that balance between pain and pleasure. The boy is Sukuna’s to break but he’ll let him have this distraction from his life outside this domain.
Sukuna grabs Yuji’s chin, nails digging into the skin as he turns his face to his. His eyes are squeezed shut, brows pinched together in the pleasure Sukuna’s granting him. When he feels Sukuna’s gaze on him, he opens his eyes and immediately leans in for another deep kiss. Yuji bites at Sukuna’s lips, something he seems to enjoy doing. Sukuna lets him. Sukuna pulls away, lightly pressing his raw lips up the side of Yuji’s face.
Sukuna’s voice is deep and gravelly as he asks, “Who do you belong to, brat?”
Yuji laughs.
Sukuna’s nails sink into the skin of Yuji’s throat, rivulets of blood dripping from the cuts, cutting Yuji’s incredulous laugh short. Sukuna halts his thrusting. Sukuna’s crimson eyes are fixated on the darkness of Yuji’s as he demands, “Tell me who you belong to, Yuji.”
Yuji’s eyes widen at the sound of his own name rolling off Sukuna’s tongue. For the very first time. He caves. One more vicious thrust from his very own curse and his body impossibly tenses, clenching hard around Sukuna as he comes, hard, crying out loudly, “Agh, you, Sukuna! I’m yours.”
Sukuna doesn’t hold back his exceedingly satisfied cackle, “That’s right, brat. My little Yuji. Everything about you belongs to me, you are mine.”
Yuji’s panting heavily as he comes down from his high, helplessly whining as Sukuna continues to ruthlessly fuck into him. Sukuna makes the mistake of releasing Yuji’s hands to grip his hips. Yuji’s hand immediately comes up and grabs a fistful of Sukuna’s hair.
When they hold eye contact again, Yuji whispers with a smile, “Don’t forget, Sukuna, you are my curse.”
Sukuna’s body betrays his pride, jerking his hips until he’s coming deep inside Yuji with a low and long groan. Yuji begins to gently stroke his hair, all while chuckling at his effect on Sukuna.
Yuji hisses when Sukuna pulls out and flips him back onto his back. Sukuna leans down and captures his lips in a lazy, open-mouthed kiss, licking into his mouth. Yuji’s arms find themselves around his neck as he looks up at the curse with a look that could’ve been considered affectionate if Sukuna didn’t know his brat better.
“Do you regret me, brat?”
Yuji softly smiles. “I hate you.”