Work Text:
Fuck…why is it always fucking me…
Katsuki glares at the observation window of the Quirk Containment Unit while he shifts uncomfortably over the white sterile sheets of the bed, his pussy throbbing with unbridled need. The urge to shove his hand up underneath his hospital gown and sink his fingers inside his wet aching cunt is near compulsive, his thoughts circling over the idea like hungry sharks in blood chummed water. He arches his back over cool sheets when a particularly hard ache strikes his abdomen, a pained groan flying from his throat. He needs something, fucking anything inside him. Needs it like he needs air to breathe…maybe even more.
The door suddenly opens with an air lock hiss and the doctor steps inside, carrying a clipboard and eyeing Katsuki with cool indifference. “Dynamight, didn’t think we’d be seeing you again so soon… and with another sex quirk exposure I see. This makes what?...three exposures in the last six months. That’s quite a record,” he drawls and Katsuki just barely resists the urge to blow his head off.
“Congrats, Doc, they taught you how to count in medical school,” he snarls as his hips helplessly buck upwards when another sharp cramp hits him and his pussy gushes in his boxers. “Now tell me how the hell I fix it this time!”
The doctor hums, grating on Katsuki’s last fucking nerve. “Well…according to the quirk user, when she experiences lustful feelings, she emits a pheromone into the air that affects the person closest to her. Apparently, she happened to be shaking your hand at your meet and greet today and well… She says to tell you that she’s very sorry, she got a little ‘overcome’ by meeting you in person.”
Katsuki growls and rolls his eyes as he tries to sit up. He swiftly realizes that he’s not only soaked through his boxers, but the back of his gown as well. “Motherfucker! God Fucking Damn It!” He shouts, absolutely enraged. “Get to the part of how I fuckin’ stop it.”
The doctor raises a brow at his outburst and lets out a breath. “Well…to be absolutely frank, Your case is unprecedented. Up until this point her quirk has only affected two others, both assigned male at birth. For them, it only caused them moderate arousal for a couple of hours and then the quirk seemed to alleviate on its own. However, it appears that it affects your anatomy in a very different manner. You’ve been here in observation for approximately three hours and your symptoms have only worsened. The quirk is not following the traditional path based on its observed effects,”
“Just fucking great,” Katsuki growls. “So you have no idea how bad this is going to get and no fucking clue how to get it to stop.”
“That is correct,” the asshole states dryly. “The quirk does not seem to be affecting any of your primary organs or bodily systems as of yet. You aren’t running a fever and the rest of your vitals appear to be normal. Your blood panel came back absolutely perfect with no irregularities. It seems that the quirk is not life-threatening in any way, nor posing any immediate danger to your general well-being. So, you have two options. You can choose to wait it out here under observation and close to medical attention if you’d prefer. Or, we can send you home with the recommendation that you find a partner to help you alleviate your symptoms until the quirk dissipates.”
Katsuki goes rigid and tense, trying not to squirm as his cunt feels like it has its own pounding heartbeat. He’s absolutely positive that if he moves from this spot, the bedsheets will be soaked through underneath him. His face heats in mortification, wishing that a hole in the Earth would open up so that he could willingly toss himself in. “Just let me fucking go home,” he snipes, not because he has a partner there waiting to help him, not that he can even think of anyone to call anyway…but because at least at home, he can pull out his toys and ride this stupid fucking quirk out that way. God, he fucking hates sex quirks…
—
Katsuki did not think this through. He should have called one of his friends to give him a ride or at least taken a cab from the hospital…But no…he fucking opted to walk the six blocks to his house like a stubborn dumbass, his jeans already soaked through the crotch and his legs trembling with such intense need that he has to stop and lean up against an alley wall, trying desperately not to shove his hand down his pants and cram his fingers into himself. He hisses through his teeth as a painful cramp hits him, dropping him to his knees on the unforgiving pavement below. He’s almost fucking there…only two blocks to go. He has to fucking make it.
He struggles to get his feet under him, but cries out as more wetness gushes from his pulsing entrance and the tension in his abdomen feels ready to snap and send him straight into agony. The arousal that blasts through him is sharp and piercing, like nothing he’s ever felt before as he tilts his head back and tries to suck gulping breaths into tight lungs that are heaving through the pain.
“Wow, you look like shit,” a deep and familiar voice suddenly rumbles from behind Katsuki, cutting through the air and striking through Katsuki like a knife. Fuck…
“Now is not the fucking time, Riot,” Katsuki hisses through gritted teeth. He does not have the fucking patience to deal with any villain right now, let alone the biggest pain in the ass known to hero-kind.
“Awwww, so mean to me, Dynamight…” Riot purrs when Katsuki turns his head to glare at him, but the effect is lost as another pulse of bright pain flares through him and he doubles over, clutching his abdomen. Fuck, he’s never had a child…had a hysterectomy before he even started transitioning, but he fucking imagines this is what birthing contractions feel like…except with the added element of unbearable arousal.
“Christ…” Katsuki mutters through harried breaths, curled in on himself.
He jolts when a heavy warm hand suddenly lands on his shoulder, squeezing firmly. “Mmmmm got hit with a sex quirk, didn’t you, baby?” Riot growls quietly.
Katsuki does not shiver at the low timbre of that voice… fuck you. “No shit,” he snarks bitterly.
The grip on his shoulder tightens and Katsuki yelps when those fingers shift into hardened claws, digging into his flesh through his hoodie. “Not very smart for you to be out walking around, hero, where anyone could just stumble upon you…” Riot says lowly, voice grating and deadly like a rockslide.
Katsuki tries to summon a vicious retort, but instead an unwilling moan falls from his lips when his insides give a sudden pulse of desire at the threatening words, more wetness flowing from his pussy…he can feel it practically absorbing into the denim of his jeans, soaking the fabric all the way down to his knees. If he were to get up right now, it would look like he pissed himself. Shame and humiliation rise up to battle the painful arousal head on.
The claws in his shoulders suddenly shift away and he can’t explain the bereft feeling that swirls through him to add to his suffering. There’s a ruffle of clothing behind him, telling him that Riot is moving and he knows he should be concerned about that. Riot towers over him by almost two feet when they stand toe to toe and the monstrous villain eclipses him in sheer muscle mass. Comparing him to Riot is like comparing a kitten to a damn armored rhino. The only reason Katsuki is even able to take him on in battle on a normal day is because Katsuki can fly and fight from a distance. But this isn’t a battlefield and Katsuki doesn’t think he could summon his quirk even if he tried right now. Like this, he’s fucking exposed and vulnerable, a mere insect under Riot’s boot…a very desperate and horny insect. In his current pathetic state, Riot could kill him with one blow and it would all be over.
Katsuki lets out a ragged scream when another flare of pain blasts through him from his core. Tears stream involuntarily down his cheeks and he whimpers, limp and exhausted. He doesn’t see when rugged worn boots suddenly step in front of him and can’t muster enough energy to fight when hands suddenly grip him tightly under his armpits and lift him into the air like a ragdoll. His legs are limp as they dangle beneath him, his chin dipped to his chest and eyes closed when the world spins around him. Gravity seems to hold no meaning to the giant holding him and Katsuki lets out a haggard yelp when he’s thrown over a broad shoulder that is wider than his entire waist.
“Just a needy hero in heat, aren’t you, baby?” Riot coos and pats his ass with a wet slapping sound against his soaked jeans. Riot groans deep in his chest, the sound vibrating through Katsuki’s entire body. “Gods…you’re fucking soaked…” he murmurs in an awed tone. The hand on his ass rubs in circles over the rapidly spreading wetness, the wide palm spanning almost the entirety of Katsuki’s ass cheeks. “You’ve been keeping secrets, Dynamight…”
Katsuki grimaces and this time it’s not from the pain. Embarrassment heats his skin and he tries to struggle against the arm wrapped over him, keeping him pinned to Riot’s shoulder. “Fucking put me down,” he tries to snarl, but it comes out breathless. “Riot! Just fucking let me go!” he shouts, voice cracking when another painful wave crashes through him. “Please,” he whispers raggedly, muscles contracting and spasming.
Riot hums like he’s thinking about it, but then his hand slides down over Katsuki’s ass, following the seam over his ass crack and forcing its way between Katsuki thighs. He presses his fingers up, teasing at the source of Katsuki’s flooding wet warmth. Katsuki tries to close his legs, but then moans when some of the pain inside of him seems to fade with just the threat of being filled. Riot rubs just a little harder over the spot, the wet material sticking to Katsuki’s skin shifting to stimulate his swollen clit. Another stuttered groan leaks between Katsuki’s lips.
Riot starts walking, to where Katsuki has no idea, his head tucked down against Riot’s back and only able to sporadically see the grainy pavement below through his tears. Riot doesn’t stop rubbing over Katsuki’s heated entrance, causing more liquid to stream from his core. Katsuki’s pants will no doubt be soaked down to his ankles at this rate. He tries to raise a fist to beat against Riot’s back, but the hit is weak and barely thuds against the solid muscle. A feeble attempt at reaching his quirk has Katsuki sighing in resignation when not a single spark lights in his palm. “Riot, please, I have to get home…” he rasps, trying not to moan like a wanton whore as Riot presses over his entrance repeatedly as if trying to coax more of Katsuki’s slickness forward.
“You’re gonna stay with me for awhile, little hero,” Riot states firmly after a long stretch of silence, his boot steps the only sound bouncing around them.
“You can’t be serious,” Katsuki grunts, pain starting to rise again, along with the pulsing need for more stimulation. He can’t explain it, but he needs to be stretched wide and stuffed full. He squirms over Riot’s shoulder with a whimper as the urge nearly swallows him whole. He needs something in him…NOW.
“Riot, pleeeeeease…” he begs, the plea tumbling freely from his mouth. He no longer recognizes what he’s even begging for as a fog seems to slip over his mind and his instincts scream at him that his survival depends on his cunt being filled. “I-I need–” He tries to shake his head in denial and to clear the murkiness settling in.
“I know what you need, little hero. Need a nice fat cock to fill this greedy cunt, don’t you?” he purrs and slaps a harsh hand against Katsuki’s ass, making him cry out. His pussy starts throbbing so hard that Katsuki briefly fears that Riot will be able to feel it. Any semblance of rational thought suddenly vacates his head when he hears a shredding sound and cool air brushes against his soaked mound. “There we go, baby,” Riot snarls and Katsuki only has a moment to realize that Riot’s claws shredded through the seam of his pants and boxers right before he screams as thick beefy fingers shove into his gushing pussy with a wet sound. He writhes over Riot’s shoulder at suddenly being filled. He panics and thrashes when the cold realization washes over him that they’re still out in the open. Anyone could see him like this…but the horrifying thought is waylaid when the fingers shove even further inside, stretching his poor pussy around their girth.
“Mmmm, so fucking tight,” Riot groans darkly. “Fuck, hero, that’s only two of my fingers and they barely fit.” Riot twists his fingers and begins pumping them inside Katsuki’s spasming wet walls. Katsuki feels stretched and stuffed fuller than he ever has…and this is just Riot’s fingers. He can’t help imagining what his cock would feel like.
“Riot, stop! You can’t–” Katsuki tries to weakly protest, but is cut off when another guttural moan escapes as Riot’s fingers pump a little faster.
“Fuck yeah, baby, moan for me,” Riot praises and puts a little more force into his fingers, fucking them in and out steadily. Katsuki’s limp hands grip onto the back of Riot’s shirt just to anchor himself, feeling light headed from hanging upside down and foggy with arousal that seems to be building more by the second.
Luckily, the pain seems to have dissipated for the moment as Riot pumps inside of his pussy. It feels so fucking good that Katsuki can’t even remember why he was fighting in the first place, forgetting altogether that he’s a pro hero having his soaking pussy finger fucked in public. “F-fuck,” he stammers, a little spit drooling from his lips when Riot starts fucking him harder with those thick digits. A new kind of tension builds in Katsuki’s gut, this one a little more familiar and his legs begin to vibrate as the coil winds tighter.
“That’s it,” Riot encourages lowly. “Just relax, little hero. Let me see it.”
Katsuki’s moan is stuttered as Riot slams his fingers inside, curls them harshly into his g-spot and begins to drill them mercilessly against it. Wet sounds fill the air around them as Riot fingers him viciously and the pressure inside Katsuki builds swift and violent. He shakes so hard that he worries that Riot will drop him, his knuckles popping with how hard he grips the villain’s shirt. He squeals when his insides feel like they implode and pleasure like he’s never experienced before razes through his nerve endings and his pussy flutters wildly while cum sprays from him like a burst hydrant to the pavement below with a wet splash.
“Fuck, yeah,” Riot breathes out. “Bet you’ve got more in there for me, don’t you, slutty little hero…” he snarls, keeping his fingers moving at the same relentless speed while Katsuki screeches and kicks as the orgasm just keeps rolling through him. Another gush of cum pours from him, soaking down into his sneakers where they dangle over Riot’s front. “Good fucking boy.” Katsuki heaves sharp breaths as those fingers blessedly pull free from his cunt, showing him mercy while aftershocks make him tremble and groan.
But relief is short lived when three fingers start to wiggle through his spasming entrance. He screeches at the painful stretch, trying to pull away from the intrusion even as his pussy drools for more. His instincts war between avoiding the thing causing him pain while knowing that it’s the only thing that will satisfy this growing desire that’s scratching at his brain. “Riot!” he shouts. “I c-can’t…”
Riot just presses his fingers in harder, completely ignoring Katsuki’s desperate plea. “Gotta stretch this tight little cunt out or my cock will fucking tear you apart,” he states through gritted teeth, cramming more of those thick fucking fingers past Katsuki’s resistance. “You’re so small…” he mutters and Katsuki squirms and clenches his jaw, walls stretching forcefully and sending a throbbing ache through his lower body. “Gonna make that flat little tummy bulge with me, baby,” Riot threatens, twisting his fingers and finally sinking them all the way inside. “By the time I’m done with you, your poor little pussy will be so loose… Gonna use you up, little slut. Breed you full of cum…Been waiting to get my hands on you and here you are on a silver fucking platter.”
Katsuki’s moan echoes off of alley walls when Riot starts thrusting his fingers. Katsuki has no idea where they are, nor does he care as the pain of the stretch starts to fade and desperation once more begins to edge up inside him. “Riot…” he whispers, voice frayed and weak.
“I know, baby,” the villain says knowingly, once more curling his fingers into that sensitive spongy spot inside Katsuki and obscene wet squelches bounce around them.
“Please, please, please,” Katsuki mutters helplessly around his heavy groans as impossibly thick fingers begin to ruthlessly hammer against his sweet spot.
“Love it when you beg, Dynamight…” Riot coos. “You’ve always been a slutty fucking hero with that tight ass costume and big mouth…I’ve wondered so many times what you’d look like beneath me, split open on my cock. Guess it’s my lucky night. Gonna break this little pussy and punish you for tempting me.”
Katsuki’s mouth hangs open uselessly, drool dripping from his lips as his pussy sucks around those fingers and the pressure builds once more. He can’t even process the words being aimed at him, completely obsessed with the pleasure drumming through him. His brain feels melted, leaking out of his ears to join all of the other fluids trailing over the pavement below them. His body seizes and convulsions rock his frame as another orgasm sweeps through him from his fingertips to his toes. He thinks he screams, but isn’t sure through the heady rushing in his ears and the pounding of his own heart throbbing at the same tempo as his cunt.
The pain feels distant when his entrance is being stretched further and he vaguely recognizes another finger being worked in next to the others while his pussy still squirts and spasms with release. This stretch feels easier while endorphins and ecstasy continue to steamroll him and drop him into a hazy space where all he can do is feel everything all at once. He thinks he’s still cumming as four fingers stretch him wide and start to pump inside his flooded and ruined cavern.
“There we go, hero. Taking it so well…” Warm words settle over him like a weighted blanket and Katsuki sighs, still riding the high of euphoria. “If I’d known there was a greedy messy little cunt waiting for me, I would’ve taken you and fucked you so much sooner,” Riot chastises almost playfully.
Katsuki thinks he should be offended, but his trusty anger seems hard to reach as those fingers delve inside of him. He can’t stop the noise falling from his parted and drooling mouth.
“Hey, boss, whatcha got there?” Katsuki stiffens at the new voice, but Riot pumps his fingers a little harder, distracting him.
“Caught me a slutty little hero,” Riot says teasingly, like he just caught the biggest fish of the day and this is a completely normal occurrence.
Katsuki tries to gurgle a protest even as his cunt pulses, an intoxicating rush of humiliation and arousal forcing more slickness to gush around Riot’s fingers.
“I see that, boss,” the man responds through a chuckle. “Wait…Is that—?”
Katsuki flinches so hard that he feels his pussy walls clamp down harshly over Riot’s languidly thrusting fingers, forcing them to still their movement.
“Shhhh…baby,” Riot placates, pulling his fingers out to shove them further forward and begins rubbing over Katsuki’s clit. The sudden stimulation over the sensitive bundle of nerves has Katsuki mewling. Riot circles the little nub with firm strokes and Katsuki’s entire awareness of the situation seems to fall away in a rush.
“Riot!” Katsuki wails, whole body shaking as the tension inside him builds like a tsunami. Sweat rolls over his skin, making his t-shirt cling to him and he feels like he can’t suck enough air into his lungs. Everything is so hot and loud…and too much. It feels like electricity is being fed directly into his body from the point where Riot’s fingers strum over his clit harshly.
“Well, I can see you’re busy for the night. I’ll tell the other boys to leave you be.” The voice sounds distant to Katsuki’s pounding ears.
“Just tell them I’m busy and not to be disturbed. You didn’t see nothin’ tonight…you feel me?” Riot suddenly growls and just the threatening cadence of his voice drives Katsuki closer to the cliff.
“Don’t worry, boss. Ain’t gonna say a thing.”
When Katsuki falls over the cliff, he screams, feeling like he’s being electrocuted from the inside. Pleasure and oversensitive pain course through him in violent waves that feel like he’s being pulled down into a vicious undertow that will drown him. His head jerks up and the sound that leaves him can only be described as an inhuman screech, while his pussy throbs and squirts. Riot’s finger’s release his clit only to shove back inside him and begin pummeling his convulsing cunt, forcing more of his release forward. Warm wet liquid soaks Katsuki’s entire lower half, feeling like he’s been dunked into a warm bath fully clothed.
As his eyes flutter and roll with the sensations rocketing through him, he can hear the steady drip drip drip of his shoes to the pavement just before darkness surrounds him and his tense body goes limp over over Riot’s shoulder like a marionette with its strings cut.
—
Katsuki groans deep in his chest as something impossibly thick and ridged shoves inside him with one one slick thrust and he tosses his head, unable to open his heavy eyelids. The monster inside him buries itself deep and he sucks in a harsh breath when it feels like it presses up into his lungs and white hot pleasure lights him up from the inside. It moves within him and he clamps down, almost desperate to keep it inside. He finally feels full as memories sift back into his conscious mind slowly.
“Riot?” he croaks.
“There you are, little hero,” a familiar deep dark voice murmurs, settling deep in Katsuki’s bones. “Open those pretty red eyes for me,” it commands.
Katsuki’s lashes flutter as he tries desperately to lift them. When they finally crack open, it's to see a broad chest that blocks out the light. He whimpers when the thing inside him shifts, drawing outwards slowly before pressing back in, forcing Katsuki’s organs out of the way to make room. When he looks down his body, an obscene bulge presses his belly upwards making him look pregnant and his hand flies to the oddity, brain unable to make sense of what he’s seeing.
“Fuck, your pussy is so fucking tight,” Riot growls above him. “Strangling my dick. Even passed out, you fucking screamed when I put it in. Shoulda seen those little lips struggling to let me in.” Katsuki moans when Riot thrusts inside a little harder and the sound of wet sloshy pussy reaches his ears. He feels so deliciously full, finally satisfied and stuffed. He leans into the feeling and reaches up with his hands to dig his nails into either side of Riot’s abdomen, fearful that Riot might leave and take the addicting feeling with him.
“Don’t stop, please…” Katsuki begs airily.
“Not stopping until this pussy is stuffed full of my cum, little slut,” Riot warns and jolts Katsuki up the mattress with a jarring thrust that pushes his belly upward lewdly. He can’t stop staring at the sight of that monster cock stretching his skin taut.
Katsuki feels a little dopey, like he’s floating as Riot sets a steady hard rhythm fucking inside him. His eyes cross as all of those ridges press against his sensitive spots. He briefly wonders if it has to do with Riot’s quirk. He thinks he could cum like this and moans in pleasure when Riot leans back a bit, changing the angle and presses Katsuki’s knees to his chest, pinning them there while the villain looks down at him, something dark and sinister in his gaze that heats Katsuki from the inside. Riot looks like a beast posed above him and Katsuki feels so tiny and fragile beneath him.
“Look at you, moaning like a little whore on villain cock,” Riot rumbles. “My personal little hentai breeding bitch…” Katsuki’s head tilts back against the mattress and his hands fly to grip the covers when the thrusts inside him start impaling him brutally. Tears flood from the corner of his eyes and drool slips from his parted lips at the ecstasy filling him until he could burst. Pressure builds in his abdomen slowly this time while Riot rails his insides, heavy balls beating against his ass with every plunging thrust.
“Feel like I could fucking break you,” Riot growls and Katsuki’s eyes fly open when hardened fingers wrap completely around his throat and squeeze. “Mmmm but you can take it, can’t you, little hero?”
Katsuki bucks and squeals when the cock inside him feels like it swells and lengthens, but Riot keeps him pinned in place as he fucks ruthlessly inside him. The pressure inside Katsuki snaps when Riot tightens his fist, cutting off his air completely. Katsuki’s mouth opens on a silent airless scream as white hot molten pleasure sears through him and he closes his eyes at the bright light that seems to flash through them with the intensity of his release.
“Fuck yeah,” Riot groans, letting up on his neck and bracing his hands to either side above Katsuki’s head. “So. Fuckin’. Tight.”
Katsuki wails as Riot’s hips piston harder into him. He feels like he’s hallucinating, like this is some sort of fever dream as Riot bruises his internal organs with his inhumanly large cock while his cunt flutters and sprays uncontrollably. His legs have a mind of their own as the lift and try to wrap around Riot, urging that cock deeper with his heels digging into tensed back muscles that feel like solid stone.
“Hold on tight, baby, gonna fucking breed this little pussy full,” Riot warns and slams inside Katsuki so hard that he yelps repeatedly with each impact and his eyes cross, nails digging into the tough skin above him. The cock inside him suddenly swells and kicks inside him as Riot buries himself to the root, Katsuki’s belly stretched painfully with the bulge as Riot grinds himself against it. Katsuki has never been able to feel it when he’s let others come inside, but this time he feels as a torrent of warmth suddenly floods inside him, feeling like a pulsing showerhead shoved inside his cunt. He groans and whines at the pressure inside him, back arching at the stimulation. Riot grunts above him and gives a couple of quick sharp jabs inside him that have Katsuki clenching down harder.
The silence is only filled with panting breaths as Riot continues to unload inside him while Katsuki practically levitates out of his own flesh in the afterglow. When Riot pulls out, they both let out stuttered groans, but the moment the cock is pulled from his hole, Katsuki’s moan tapers into a whine when a cramp strikes him and he curls underneath Riot, releasing his fingers from Riot’s side in order to clutch at his own abdomen while thick cum foams from his hole.
Riot rolls back onto his knees from over Katsuki and cracks a grin as Katsuki squirms when pain and arousal once more plague him. His thoughts are frantic and panicked, not able to focus on any one thing, other than being filled once again. “Riot!” he gasps out, his own fingers digging into his abdomen.
“Hmmmm?” Riot hums in question when tears once more begin to stream from Katsuki’s eyes. “Did you need something, hero?” he asks in a teasing tone.
Katsuki can’t think straight as his own fingers fly to his cunt and he shoves four inside as a desperate attempt to stop the pain. It doesn’t even take the edge off, feeling small and unsatisfying now that his poor pussy has been stretched wide. In desperation, he tries to shove his thumb in next to the rest and begins to sink inside his pulsing walls…anything to stop the ache. Katsuki’s legs fly to his chest, shaking as he’s able to sink them all in at once, wrist angled cruelly as he plunges his entire fist inside, soaking it in the pool of cum inside him.
“Jesus Christ,” Riot whispers harshly. “That’s it, fist that tight little cunt. Keep going…” he encourages breathily in an awed tone. Katsuki can barely hear him over the ringing in his ears. He clenches his pussy desperately with a whine, trying to achieve that same full feeling as before. He can feel his own slick walls trembling with the effort as he starts to plunge his whole hand in and out, soaking his wrist and arm in his own juices. It settles some of the pain inside of him the harder he thrusts it inside. His legs twitch as he crooks his thumb knuckle just a bit and is able to knead against his own inner wall and barely graze that sensitive spot inside him. It’s not fucking enough…
“Riot, please,” he pleads desperately, voice hoarse and barely there.
“Does my slutty little hero need more?” Riot coos cruelly, while stroking his own cock between his legs, watching Katuski try to satisfy himself with heated eyes.
“It’s not enough,” Katsuki whimpers pitifully, fisting his pussy ruthlessly. “Need you!” It’s like only Riot can satisfy him and some distant part of his brain realizes that he could’ve never rode this quirk out alone. The doctor had said there were no adverse symptoms to suggest that his life was in danger…but he feels like he’s fucking dying as another cramp strikes him, making his pussy walls contract over his fist. “Please, please, please,” he hears himself babbling nearly incoherent with pain and arousal.
“That’s it, little hero. Beg some more. Get me nice and hard so I can break that little pussy some more,” Riot encourages while he fists his swelling length.
Katsuki’s thrusting as fast and hard as he can, cum and slick flying everywhere, coating his cunt, thighs, ass and belly…desperately trying to achieve the edge of orgasm that he somehow knows will relieve his suffering if even for a moment.
He can’t even beg anymore, the longer it goes on. His tongue feels swollen in his mouth from biting it and his voice thin and scratchy from screaming. His brain feels like nothing but desperate muddled insanity, while his skin feels like it’s going to boil straight off his bones.
Suddenly his wrist is grabbed and he lets out a hoarse cry at the sudden emptiness when it’s yanked from him, unable to register what has happened. He panics and lashes out, until something thick and wide presses at his entrance. He quakes, biting his lips so hard that they bleed and blood begins to trickle down to his chin.
“Shhhh, little hero…” Riot coos menacingly and Katsuki is jolted, eyes flying open when something foreign shoves inside him, stretching his walls almost painfully and making him open his mouth on a silent scream. His entire back arches so hard that he hears the pops along his spine. “There we go…” The thing inside him twists and shoves deeper until Katsuki can barely breathe. His eyes are flooded with tears, brain synapses firing between pain and pleasure so rapidly that he can’t make sense of them. “This is what this slutty little cunt needed.”
Katsuki is barely able to see as he sobs, watching as Riot looms over him. Sharp teeth grin down at him as Riot’s arm begins to move down below and Katsuki feels the giant intrusion inside of him start thrusting. Fist… Katsuki thinks distantly. Riot’s whole fist is inside him. Before today, he wouldn’t have even believed that was possible.
“Never been able to do this before, but your loose little pussy is swallowing me whole. Just a perfect little fist puppet, aren’t you?” Riot growls and begins dragging his fist out of Katsuki with a wet squelch. Katsuki squeals at the sudden emptiness, instantly missing the relief that it had brought.
“Please, Riot. Put it back in!” He pleads, voice high and thready.
Riot doesn’t say anything, but then that bulging fist punches back into Katsuki’s cunt so hard that he is forced upwards on the mattress with a hoarse cry. Riot grabs his throat to keep him still as he begins shoving his fist back and forth inside of Katsuki’s cunt without truly leaving it. The wet sounds are obscene as he works his fist, grinding his knuckles against all of the spots that make Katsuki writhe. There’s no more pain, only pleasure at the stuffed feeling and Katsuki lets out a pornographic moan as tension builds in his abdomen.
“Gonna hunt this quirk user down and fucking recruit them,” Riot suddenly growls. “Fucking keep you like this all the time…Needy and desperate for me. Just keep you gaping and ready for me. My own screaming little cocksleeve, a gushing little pocket pussy just for me.”
Riot’s fist beats within Katsuki and his eyes cross as his pussy suddenly feels like it bursts in starburst of light and ecstasy. His scream this time is nothing more than a raspy wisp of airy sound as more liquid floods from his cunt around Riot’s wrist and forearm.
Riot’s fist keeps going as Katsuki squirms and kicks out, nerves overloaded with sensation and feels something else release inside him as he loses control. More wet liquid gushes from him in a stream, absolutely drenching the bed below them. He can feel it seeping upwards along his back as it spreads over the fabric.
“Such a dirty little whore, pissing all over yourself,” Riot chastises him in a smug voice that creeps over Katsuki’s heated skin, sounding eerily like praise. He only feels a flash of humiliation through the waves of overstimulation, not allowing him to ruminate on it for very long. “Good fucking boy,” Riot snarls. “Fucking love a little piss slut. Soak my fucking sheets…”
Katsuki bucks and moans, despite the exhaustion and sweat, while his body practically vibrates on a frequency that feels exquisite and excruciating all at once. His eyes close and he shakes when the fist inside him yanks outward. But before he can even complain, it’s replaced by something just as satisfying.
Katsuki can’t even moan anymore, nothing but breathy sounds escaping him as Riot tightens his fist over Katsuki’s neck and ruts his cock inside ruthlessly. Tears escape Katsuki when the cock inside him seems to thicken and harden into a jagged texture. “There we go, nice and tight again…” Riot murmurs, squeezing Katsuki’s neck rhythmically with every thrust that drags wetly through Katsuki’s walls.
“Riot,” Katsuki faintly whispers, not even sure why.
Riot’s hand on Katsuki’s neck loosens and suddenly hard lips press to his, sharp teeth nipping and licking over the blood from earlier. Katsuki willingly opens so that Riot can fill him up even more, needing that tongue inside him like he needs air. A feeling of rightness abruptly settles over him, a bone-deep satisfaction as their tongues wrestle and their breaths meet each other like opposing storm fronts. The urgency and aching within seems quelled and his brain starts to unravel like a ball of tangled yarn. Everything just feels good as his core temperature alleviates enough that he can feel the sweat, slick and piss cooling over his skin.
Riot suddenly leans back, Katsuki whining at the sudden separation. But his legs are roughly grabbed in hardened fingertips and forced up and over Riot’s shoulders before he is forced completely in half when Riot once more leans down to capture his mouth, drilling his cock deep in claiming thrusts that push Katsuki’s tummy out in a way that Katsuki is finding addictive. He tries to groan at the depth that Riot’s cock reaches inside him.
A little coherency begins to trickle into Katsuki’s thoughts while Riot pistons inside him and Riot tilts his head to the side to suck over the skin of Katsuki’s neck, leaving bruises that Katsuki will no doubt feel for days to come. His whole body feels heavy as Riot breathes hotly over his neck. Katsuki reaches his arms up and wraps them around Riot’s neck, suddenly needing the closeness while the gushing of his pussy, heaving breaths, and wet slaps of skin are the only sounds filling the air.
The kiss… it occurs to him suddenly. The moment Riot kissed him, the painful urgency immediately faded and Katsuki was able to sink back into his overstimulated body.
Riot must sense the change in him because he suddenly leans back to look down into Katsuki’s eyes. He surprises Katsuki by giving him a boyish smirk and slowing his thrusts down to a slow roll. “There you are, little hero…” he purrs. “All better?”
“Kiss,” Katsuki explains in a raspy whisper.
“Hmmmm why didn’t I think of that?” Riot murmurs teasingly. “True love’s kiss to break the spell?”
Katsuki scoffs at him. True love? He opens his mouth to say something, but the thrusts inside him harden, stealing his breath away.
Riot braces over him. “Fuck, you feel so good around me, little hero,” Riot purrs. Katsuki tries to moan when Riot rubs just right over his g-spot, stimulating it just perfectly. Fuck, he thinks he’s going to cum again. “Gonna cum, little slut, give this perfect pussy some more cream to suck on.”
The words tumble from Katsuki’s tongue before he can think over them even now that his thoughts have cleared, “Fuck, Riot, please…”
Riot’s grip tightens as he jackhammers inside Katsuki repeatedly. “Fuck, baby, clench down just like that,” Riot says through gritted teeth when Katsuki clamps over it as his orgasm builds swiftly.
“Riot, gonna–” Katsuki tries to warn, but his orgasm swamps him, nearly painful in its intensity. He arches with a hoarse cry as Riot drills him faster. This time, Katsuki doesn’t feel a flood of wetness between his legs and realizes that perhaps Riot did fuck him dry afterall.
“Can’t get enough of this sweet cunt,” Riot snarls as he drives inside with a brutal thrust while Katsuki feels like he floats just outside his body. He can feel the villain shake against him as he unloads more of his heated cum in Katsuki’s thoroughly used and abused pussy. He has the fleeting thought that it will never be the same after this. No cock will ever satisfy him again like Riot’s.
Katsuki’s eyes flutter with exhaustion as he comes down from his high and Riot collapses over the top of him, smothering him with heated weight. Katsuki can tell that Riot’s cock is quirked when it doesn’t lose hardness, but it feels nice, plugging him up and keeping him full while his body quivers in aftershocks and the tension seems to flush from his body like a receding tide. A little surprise flits through him when Riot nuzzles into his hair affectionately.
Katsuki knows that he should shove the villain off, that he should blow the man to smithereens for taking him against his will. He should arrest the fucker and toss him in a deep dark hole never to be seen again. But…he’s so warm and comfortable in the aftermath and a deep secret part of him recognizes that without the villain, he would have been in absolute agony…possibly forever. No one would’ve ever thought that something as simple as a kiss would cure it. He tries to shove the thoughts away for later. He couldn’t move right now even if he wanted to and as much as he hates to admit it, the closeness feels nice. He can’t remember the last time he felt something like this…if ever.
“Sleep, little hero. Worry about it all tomorrow. You’re safe here…” Riot rumbles, sounding just as tired as Katsuki feels. “You can be mad and blow me up in the morning.”
Katsuki shouldn’t feel soothed by the words, but his eyelids finally close, letting himself have this for just awhile. Riot’s right…he can always blow him up in the morning, he’s too tired tonight.