Chapter Text
Sukuna is a man with an unusual palate, seeking out cuts of meat and pleasures that ordinary humans may find difficult to stomach. All to chase the thrill of riding the thin line between life and death, meting out beautiful destruction in his wake.
He thrives in places humans do not dare to dwell, yet today something catches his eye somewhere he does not hunt. A boy with soft white hair and startling blue eyes, and something hidden beneath the surface of his pretty face that does not escape Sukuna's keen gaze, walking amongst humans as though he belongs.
Prey the likes of which he's never seen before.
For a man of his stature, Sukuna is unnervingly quiet on his feet. He follows the teen around for a few days, noting his patterns and the carefree way he carries himself. Confident to the point of arrogance, but it's understandable for someone like him. An apex predator who could never imagine himself to be the one hunted.
He waits in the boy's home for his return from school not long after his first sighting, a poisoned trap poised to trigger the moment the teen steps foot inside. Pine leaf smoke that will suffocate the teen and make him easy pickings for Sukuna's honed blades.
The doorknob jiggles in place for a second, and then the sound of keys clinking comes through the solid door. It cracks open slowly and Satoru glances inside. He doesn't see anything immediately, so he opens the door and steps in.
The poison trap activates and smoke bursts out from somewhere to his left. The smoke has the teen's eyes watering, and he makes a pained sound as he coughs. His illusion breaks, and his fox ears and his tails are no longer hidden— snowy white and pristine.
While Satoru is still disoriented Sukuna lunges at him with a poison-coated blade. It's best to keep the boy alive up until he's to be served on Sukuna's plate.
The boy is pretty, he thinks. He's always known kitsune are beautiful, but it's one thing to know and another to see for himself. Unfortunately, beauty has never stopped Sukuna from taking what he wants.
Blue eyes snap to Sukuna, even through his tears. He makes a feral noise, almost like a growl, and he hits Sukuna with his backpack first. The books are heavy and they slam into Sukuna's side. Satoru just barely dodges the poisoned blade, and he bares his teeth at the man.
"What's your problem?" Satoru scoffs as his form starts to shimmer and duplicate. He ducks to the side then rakes his claws along Sukuna's side, tearing his clothes and skin to ribbons.
Satoru's new illusion stutters and disappears as he coughs and the pine smoke has him stumbling and covering his mouth to protect himself from inhaling more.
The boy is stronger than Sukuna had expected, especially for one so young. He grins as he touches his side, feeling the deep gouges Satoru had left on him. How wonderful it is to have underestimated his prey.
He doesn't answer Satoru's question, opting instead to thrust his blade again at the boy. This time, he anticipates the dodge and nicks Satoru's arm. It's not enough to truly injure the teen, but it does work more of the poison into his system.
Satoru grits his teeth and he twitches as the poison courses into him. His ears angle back and he lunges once more. He can feel the poison acting fast, and he needs to take this human down before he drops. He won't die like this.
Stinging tears blurring his vision, Satoru is still able to lunge and he knocks Sukuna to the floor. With one hand on Sukuna's throat, he grips his jaw and rakes his other hand across the man's face. Straddling Sukuna’s chest, his tails flail as skin tears under his claws. Satoru feels the soft squish of an eye being gouged, and he meanly scrapes further across Sukuna's cheek and nose.
But then a painful sting zings up his arm and he flops to the side, trying to crawl away as his body gets too heavy. "Lose your eye, hunter—"
The thrashing of a cornered beast is something Sukuna knows to anticipate, but Satoru moves too fast for him to stop him. He curses loudly from the searing pain on the right side of his face, his eyelid forced shut and his flesh mangled, practically falling off the bone. He heals much faster than other humans, but he won't be regaining the eye.
"I may lose my eye, but I won't be losing you." Sukuna sways as he rises from the floor, pressing his foot meanly on the teen's back to stop him from getting any further. His face and side throb with pain, only dulled slightly by the rush of adrenaline. "Just go to sleep, little fox. I'll make it as painless as possible for you."
Satoru growls and claws at the floor weakly. He glares over his shoulder, Sukuna's looming form is imposing, but Satoru sneers. "You'll have nothing from me." He breaks into a cough, and a bit of blood splatters on the floor. Just as it splatters, Satoru's head drops to the floor with a dull thud, and his body goes limp.
"I don't think you'll be the one to decide that," Sukuna says quietly to himself. He takes his foot off of Satoru and flips him over, grabbing his face to study it properly. Even with the ears and tails poking out of the teen, he looks remarkably human. Sukuna almost wants to disfigure Satoru’s face the way the teen had done to him.
He hauls Satoru's limp body with a deep sigh. He's bleeding everywhere and it hurts to move, much less carry an unconscious teenager around. Still, he manages to cram Satoru into his car without drawing attention. He's never hunted like this before and he’s displeased by how messy the ordeal was.
—
When Satoru comes to, he's laying on his side on the floor of what looks to be a bedroom. It's sparse, and Satoru has to close his eyes firmly to stop the world from spinning. He groans, arms and legs tied together and body still sluggish from the poison.
The kitsune coughs again, and that's when he realizes he can't use any of his magic here. It's like he's a flame underneath a fire blanket, about to be snuffed. "What...?" The hunter didn't kill him, and he can't parse through why.
In the time Satoru was knocked out, Sukuna had tended to his wounds. There's no saving his eye, and even with his unnatural healing his face will be scarred.
He can sense when Satoru wakes and puts down the book he had been reading to greet the teen. "How are you feeling?" he asks, crouching down to be eye level with Satoru.
"Go grab your knife and sit on it," Satoru snarls as he tries to pull his arms free. "Maybe coat it in poison before impaling yourself."
Sukuna lets out an amused huff. "Doing well, I see." He hasn't quite yet decided what to do with the young kitsune, but Satoru has earned the right to be seen as more than just food. "What is your name, little fox?"
"Satoru," he answers rather easily. "What do you want from me? I'm not giving you my jewel. You'll have to kill me for it."
"I was going to eat you," Sukuna answers far too casually, "but I have changed my mind, and your jewel is useless if you're dead." He knows he won't be able to convince the boy to hand it over willingly.
"Ew..." Satoru pulls a face at him. "You were going to eat me? What kinda freak does that?" He struggles a bit more and then lays still as he catches his breath.
"Do you think you'd taste more like fox or human?" Sukuna idly puts a hand on Satoru's head, touching the furry tips of his ears. "How old are you?"
Satoru yanks his head away as best he can, even if the floor heaves and he groans, laying down against it. "You creep, I'm wearing my uniform," he mumbles against the floor. "Kidnapping teenagers is a crime... Eating them is even worse."
"The law may be more lenient when it comes to yokai." Not that Sukuna plans on being caught. "You didn't answer my question."
"If you're not going to eat me, what are you going to do...?" Satoru tries to shuffle a bit further away, realizing that if Sukuna's not keeping him to eat, he's keeping him for something else.
"There are stories that bedding kitsune grants mortal men unnatural powers." Sukuna's single remaining eye stares Satoru down. "What do you think I plan on doing to you?"
There's a few seconds of silence and then Satoru mumbles, "I'm fifteen..." The look in Sukuna's unnaturally red eye is enough to have a creeping cold fear crawl up the back of Satoru's neck. "Why don't you just take a bite? My thigh has the most fat on it, probably tastes the best," he rambles as he starts struggling against his bindings more adamantly.
"Hmm. I think I'd like to see for myself if these myths are true first." If Sukuna does end up eating the boy, it'd be more than just his thigh. His heart, kidneys, lungs, and liver would empower Sukuna more than his flesh.
Fifteen is a little young. Not something Sukuna has done before, but he can't say he's not interested. Satoru is too pretty for his own good.
Satoru scowls at him. "You're a dirty old man! Pervert!" He would point an accusatory finger if he could. He won't tell Sukuna if the myths are true or not. He doesn't want to give the man any more ideas. "I'll give you erectile dysfunction. I'll make you infertile. I'll shrink it 'til it's micro!" Satoru spouts baseless threats. He doesn't have any magic, and they both know it.
Sukuna merely chuckles at the threats. "What you will do is lay back obediently for me before I decide that you would be better off with your organs on my plate."
He likes how spirited the kitsune is despite his situation. All bark for now, but Sukuna is acutely aware of how hard Satoru's bite is. His wounds still throb with pain, an ache with each rise and fall of his chest.
"As if," Satoru scoffs. "Obedient isn't in my personal dictionary. Get ready to have your nuts inverted."
"I'm sure they already would be if you had the power to do so." Sukuna has nothing to fear from the teen as long as they're in his home. "If you're good, I'll fuck you on the bed instead of the floor."
Satoru finally looks a bit nervous, eyebrows pinching together. "Stay away from me. Don't touch me."
Sukuna grabs Satoru's face, forcing him to look him in the eye. "Which will it be, little fox? I will be nice if you behave for me."
Satoru stares up at him with a nasty expression. "I'll be good."
"I don't believe you." Satoru releases Satoru and pats the side of his face condescendingly. He wonders how long Satoru will be able to stay defiant for. He hopes he doesn't break too quickly.
"I promise! I'll behave." Satoru tries to give him a sweet look this time. His ears even swivel back as he bats his snowy lashes.
It works on Sukuna, to an extent. He likes how the boy looks when he's trying to be sweet, even if it's just an act. "Are you going to let me carry you to bed?"
Satoru nods and he lays limp, prepared for Sukuna to grab him.
"Good boy," Sukuna mutters softly as he rises. He hooks his hands underneath Satoru's back and behind his knees to lift him off of the floor.
Satoru waits until he's in Sukuna's arms to headbutt him on the wounded side of his face as hard as he can. "Rape this, cunt!"
Sukuna isn't surprised that Satoru decided to pull something, but he didn't expect the direct hit to his wound. He groans at the sharp pain as he throws the teen onto his bed, face down with a hand on the back of his head.
"You know, I initially planned on using lube and getting you nice and loose for my cock," he hisses through grit teeth. "But I think little brats like you need to be fucked into submission instead."
Satoru thrashes his body around trying to dislodge Sukuna's hand from his head. "And dirty old men like you won't be able to keep it up if your brain is bleeding out from your eye. Oh, sorry. Eyesocket."
Keeping Satoru's head pinned down, Sukuna undoes his pants with his other hand just enough to take his cock out. The scuffle has been a nice foreplay, and he's semi-hard already.
"I like you, kid, but that mouth of yours is going to get you in trouble some day."
"I'll rip your dick off!" Satoru growls, his tails tucking down to get in the way. They curl over his ass and tuck between his legs protectively. "I'll bite it in half!" He sounds frustrated as he tries to get his head free. The weight Sukuna has on him hurts and keeps him pinned.
It's too bad how uncooperative the teen is being. Sukuna would have loved to strip him bare, but he settles for yanking Satoru's pants down enough to expose his ass.
"If you don't settle down just a little, I will take you dry just like this," he warns, pulling on Satoru's tails hard enough to hurt.
Satoru yelps and goes boneless for a few seconds, a small whimper breaking through his growling. His ears flatten at the prospect, and he switches tactics. "I've never done this before, at least use lube..."
"I don't think you'll behave long enough for me to get it. You'll have to live with having only my spit." The thought that no one else has been inside this beautiful teen excites Sukuna. He'll make it a memorable first time.
Satoru's eyes widen, and he squirms again. His heart starts racing finally and he tucks his tails over his ass again, squeezing his thighs together. The fact he can't even see what he's about to have shoved inside him annoys him too. "Should be easy for a slobbering beast like you."
Sukuna yanks Satoru's tails harder, not allowing the boy to cover himself. "You're funny, little fox." Satoru is sure talented at slinging insults, and it amuses Sukuna to hear what will come next out of his mouth.
He parts Satoru's thighs as far as they can go while bound and spits directly on his hole. It's pretty and pink, and looks unbearably tight. He has his work cut out for him.
Satoru makes another pained sound as Sukuna pulls and keeps a tight hold on his tails. The surprise of wetness on his hole suddenly has everything feeling that much more real, and he squeezes his eyes shut. "Funny enough to let me go? I promise, I'm even funnier when I'm untied." His hole clenches on nothing, already tightening up in fear of being penetrated. "Hilarious even." The thick hand on the base of his tails has Satoru's body almost limp other than what Sukuna manhandles him to. "I make a mean sandwich too."
"I want to trust you, sweetheart, but I don't think you're ready for that much freedom yet." Maybe after Sukuna has broken him in, but he suspects that such a thing may never happen. "I can't say I'm eager to get clawed up by you again." The painkillers he's taken work just enough to reduce the pain to a dull ache.
Sukuna lets go of Satoru's tails so he can reach between his legs, teasing the teen's rim with a finger. He doesn't take away the hand pushing Satoru's head down, not wanting to deal with a flailing kitsune.
Satoru's breaths get shallower and he tries to flinch away from Sukuna's finger. "You can trim them." He doesn't mention he can just elongate them whenever he wants. "We c-can make a deal right? I'll be good, and you keep your dick in your pants? I'll be a blushing virgin, and we can roleplay Victorian ankle viewings. I'll give you power for it. You don't have to do it like this," he's panicking, throwing offers at the wall hoping one will stick.
Sukuna roughly pushes his finger inside, feeling for himself how tight and unwilling Satoru is. "I went through a lot of trouble getting you here. I think having your ass is the least I deserve for it." He thrusts his finger in the teen, trying to find the right angle to get Satoru to loosen for him. "Besides, your kind is known to be tricky. I don't think I'll take you up on any of your offers."
"But I'm different. I'm a byakko! I'm nice!" Satoru whimpers at the intrusion, voice raising high enough to crack awkwardly. His thighs try to close to keep Sukuna's hand from moving any deeper, but Sukuna's body is in the way and he whines again. It's more animalistic than humanoid, as if Sukuna's hurting an actual fox.
"I wasn't bothering anyone! I didn't need to be hunted, I wasn't hurting anyone—"
"Shh. I know you're a good boy," Sukuna says soothingly. "Unfortunately, I'm a very bad man who hunts creatures like you for fun, innocent or not."
He seeks out Satoru's prostate, curling his finger until he's pressing against it. He hopes pleasure will have the kitsune relaxing some for him.
Satoru jolts at the touch and his hands flex where they're tied behind his back. Heat pools in his gut just enough to have him no longer clenching down. Sukuna hunts yokai for fun. Satoru doubts he'll be getting away from here any time soon. He knows what will happen after Sukuna rapes him.
He knows that Sukuna won't let him go.
"Fuck you," Satoru grits out as he nuzzles into the pillows to hide.
Sukuna takes advantage of the moment and shoves a second finger inside of Satoru. He scissors them apart impatiently, but makes sure to touch the teen's prostate often enough to make it a little enjoyable.
"In a moment, little fox. You're still too tight to fuck."
Satoru makes another high pitched sound of pain and he trembles under Sukuna's touch. "I'll burn you alive for this. I'll worm my fire into your wounds and immolate you. Every yokai you've eaten will join with me and rip you apart from the inside. You'll die for your gluttony and greed—" Satoru snarls as his tails move and gently lay over his upper half. He hides in them, not wanting Sukuna to see his face. Sukuna's hand is covered by pure white tails, finally fanning out to show that there are nine.
The most powerful of all kitsune.
Sukuna has a real treasure in his hands. Kitsune are rare enough as is, and to have one as powerful as Satoru underneath him is something else entirely.
Sukuna spreads his fingers apart and spits again in Satoru's hole. "That would certainly be a way to go." He’s always assumed that he'll die some day trying to take on a yokai too powerful for him to handle. Fortunately for him, Satoru is a bit too young to have been such an individual. "I think you're about ready for me."
"If I had my magic, I'd make teeth in my ass. I'd angle them inward to trap your cock like a fucking fish hook. Then I'd yank myself away and tear your gross meat stick to ribbons," Satoru spits, panic making him posture.
"So bloodthirsty," Sukuna notes approvingly. He takes his fingers out and gives Satoru's ass a light smack before spitting onto his palm. He's still hard despite Satoru's colorful threats, and he strokes himself to coat his cock with his spit.
"Take a deep breath," he advises as he lines his cock up against Satoru's ass and starts pressing inside.
Satoru can't stop his fast shallow breathing and his tails tremble slightly, almost like the fanning out of a peacock's tailfeathers. He whimpers like he's been kicked and he instinctually tightens around the thick head pushing past his rim. Sukuna's cock feels bigger than he can take.
"Stop– stop, I'll reward you if you stop. I'll give you a blessing," he rushes out in a quick jumble of words. "Just don't do it."
"If you had your magic, you'd be tearing me into bloody shreds." Sukuna grunts as he's met with resistance, barely able to get the head of his cock inside. He grabs Satoru's tails for leverage, forcing the teen's hips to angle upwards and making his back arch nicely. "It'll hurt less if you relax."
Satoru's next whine is almost pornographic as he buries his face into the pillows. "I can't... It hurts."
"I know it does," Sukuna says with false sympathy. He doesn't stop thrusting shallowly into Satoru, bullying more of his cock inside with each movement. "But you make me feel so good."
Satoru's small noises turn into growls again and he struggles under Sukuna's weight. "I'll curse you. As soon as I'm free, I'll ruin you—" He chokes on his words, unable to say anything else as his body gives way and Sukuna fully sheaths himself.
The teen cries out and his hole spasms around Sukuna's girth. "Fuck!"
He's defiling the kitsune, and Sukuna moans at how exquisite the feeling is. "I'll just have to keep you here forever, then. For both of our sakes."
He fists Satoru's tails to keep the teen's ass raised high as he starts to fuck the boy for real. His fur is soft to the touch, and Sukuna idly wonders how much he could sell them for.
Satoru yowls in distress, and it ends in a vicious snarl. His tails thrash in Sukuna's grip and his arms struggle to break the bonds on them. He repeats threats to the human, not letting the pain, and the cock battering his insides lessen his rage.
He won't be cowed or made a helpless victim. He won't be broken.
"I'll kill you. I'll light up the life of every yokai you've wronged. I'll rip you to pieces. I'll slice your liver from your body and eat it raw. I'll make you watch. I'll bleed you like a stuck pig—"
Sukuna remains unbothered by Satoru's baseless threats. If anything, Satoru's struggles turn him on even more. He's rougher as he fucks the teen, pounding him selfishly into the mattress, using him like a toy. So perfectly warm and tight on his cock.
He swears he can feel something even better than pleasure building within him. A heady rush that has him moaning quietly. It must be the kitsune's power that he's stealing from the unwilling teen.
Satoru continues his fighting, even if it's futile. He doesn't stop trying to free his arms, and he even tries kicking his feet. They're pinned under Sukuna, his ankles tied together. He attempts to kick up, to sack him if he can, to do anything other than hiss and spit as he's used.
A few more harsh thrusts and Sukuna is cumming inside of the teen, fucking his cum as deep inside of Satoru as he can. He stays inside of the kitsune as he rides out his orgasm, rocking against the thrashing kitsune.
"So perfect," he murmurs, blissed out and breathing heavily. "What a pretty little fox, you took my cock so well."
Satoru takes the stillness for what it's worth and he slumps as much as he can, letting the tension start to dissipate. "How dare you..." Satoru mumbles, glaring past the hand smashed against the side of his head. The warm cum inside him is a foreign sensation and it makes his stomach lurch. He's been carved out, and this human has left a bit of himself in its place.
Sukuna pulls out of the boy, spreading Satoru's cheeks to give the cum trickling out of his abused hole an appreciative glance. "Would you rather I have eaten you? I think this arrangement works out better for me. I've never felt such power from any of my prey."
The pain from his wounds have vanished entirely, and he feels strong enough to wrestle an oni and come out on top.
"No," Satoru sulks, wriggling his tails free to lay down and mope. "You said you're keeping me. Am I just a sex slave now? Oh god... I'm too pretty to be stuck to someone like you..." he groans dramatically.
"A waste of your potential, some may say." Sukuna tucks himself back into his pants and smooths out his clothes. "Although I can't imagine what a kitsune of your caliber was doing living like a human."
"Going to school until you ruined my day." Satoru tucks his tails over his bare ass, covering himself as best as he can. He stays facing down to hide his own dick, preserving his last bit of modesty. "If you were actually curious, your first idea wouldn't have been to eat me. I'd be stringy anyway." He doesn't want to talk about the thick cum leaking out of him. With his tails covering him, he subtly tries to push some of it out, not wanting it inside.
"I'm curious now, I suppose." They'll be spending a lot of time together, and Sukuna should learn a bit more about his new captive. "What should I feed you? I’d like to imagine you wouldn’t want to starve while under my care."
"Care?" Satoru pulls his lip up in disgust. "I eat human food, but I like rice and fried tofu. And all sweets. Especially mochi. Nothing spicy. Ice cream is nice too, even if it's savoury. I like the black sesame flavour. And the ube one too." He rolls onto his side and curls up with his tails as a lower-body blanket. His ears are still angled back, and he looks vaguely disgusted when he looks at Sukuna, but when he closes his eyes, he's almost well behaved.
"What's your name?"
Sukuna takes mental note of what Satoru likes. It'll work out better for both of them if Satoru isn't absolutely miserable the entire time. He'll have to figure out how to bathe the kitsune as well without getting his other eye clawed out, and clothes for him to wear.
"Sukuna. It's a pleasure to make your acquaintance."
"Wrong. I'd rather pee on your clothes than be in your acquaintance for an extended amount of time."
Sukuna laughs and ruffles Satoru's hair. It's as soft as his tails. "I'd rather you didn't. But if you're too fox to use a toilet, I’ll find a way to live with it."
Satoru huffs at the way Sukuna brushes him off. "Well I can't use a toilet all tied up like this, can I?"
"We'll figure something out." It's worth the trouble for Sukuna. The level of raw power coursing through his body isn't something he'll give up anytime soon. "I'll help get you cleaned up and we can see what your stay will be like. All depending on your behavior, of course."
Satoru glares at him. He has a feeling his 'behaviour' will not be up to par. Or at least, he's going to do his best to make sure he's as difficult as possible. If Sukuna wants to keep him, they'll both be miserable.