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By the time Izuku wakes up, he's naked. He's also achingly, achingly hard.
His breath catches in his throat as soon as he registers his own lack of dress. The chill that rushes down his spine is enough to sweep out the rest of his exhaustion, leaving panic to take its place. He doesn't know how long he's been here, but the ache in his knees tells him it's been at least thirty minutes at a minimum, likely more.
There's a certain kind of fog that rests over him. He feels as if he's existing outside his body in that moment, as if he's been detached and set to float above it. He blinks sluggishly as he comes back to coherency, trying to gather his mental facilities enough to know what's going on.
He doesn't remember how he got here. He's not sure it matters. Stuck with his ass high in the air, his body strapped down over an odd bench, it's clear he's got bigger things to worry about. Especially when it becomes evident his quirk isn't going to work.
He reaches for it. The embers of it are there, but they don't heed his call when he desperately tugs at them. It's either his bindings or a drug they gave him, he's not sure which. If it's the latter, it wearing off without anyone realizing would be his best chance at escape.
Izuku swallows, trying to force himself to relax, to think. Fear pumps through him, so potent it nearly drowns out the odd heat he can feel simmering low in his belly. It's the type of warmth that makes his hips twitch without him meaning them to, that makes him squirm with humiliation.
They'd given him something. Whoever took him here, he can feel it rushing through him. Izuku takes a deep breath, muscles flexing, testing his restraints to see if they give. They don't, and he's not surprised by it.
He forces himself not to think too hard about the fact that someone had to have stripped him for him to be like this now. Someone's hands had been on his naked body. Izuku feels nauseous at the mere notion, bile bubbling in the pit of his stomach. He shakes his head, clenching his eyes shut for a brief moment as he gathers himself.
A gust of air flutters through wherever he is— somewhere sterile but dark, the lights turned down so low he can hardly make out the blank walls surrounding him. If there's a door, it's either concealed or somewhere behind him where he can't see it. With the airflow, there's at least a vent nearby. Promising.
Unbidden, the heat slowly starting to rise in him makes his asshole clench around nothing. Izuku can feel the burn in his cheeks intensify as a glob of something wet runs down and over his balls, leaving a tingling trail of warmth in its wake. He shifts, trying to escape the feeling as it begins to intensify.
Someone had put that in him too. Had come in here, had pushed his ass cheeks apart and drugged him. Izuku forces himself not to panic further, even if the conclusion makes him feel all the sicker. The heat is getting to unbearable levels. Izuku can feel sweat beading the back of his neck and across his back.
"Hello?!" He calls out helplessly, because there's no point in hiding he's awake now. He has no doubt they already know. "Please, don't do this! Whatever you want, I'm sure we can work it out! Is anyone—"
There's a click. Izuku lets out a squeak when something cold and wet nudges at his swollen cock.
His whole body ripples with the sensation, the heat spiking to an unbearable level that makes him cry out. Izuku jerks oddly as he fights between the sudden urge to grind back and the logical wish to escape. He hears a snuffling noise, something prickly scratching lightly against his skin.
That cold, wet feeling traces up to his asshole. It takes Izuku an embarrassingly long amount of time to realize it's a nose. Immediately, ice floods his veins. His eyes grow wide, body violently jerking back once more. He cranes his head, straining to try and see over his shoulder.
The heavy collar around his neck catches, chain pulled taut. Izuku can just barely make out the excited swish of a tail in his peripheral vision. The sight, coupled with his position, is enough to make hysteria rise in him.
The gravity of his situation presses down on him. He's naked, helpless, and bound in an unfamiliar place. Nobody knows where he is. Quite possibly, nobody even knows he's gone to begin with. There's a chance nobody is coming, that they won't be for a very long time.
"N-No. No, no, doggy. Bad dog." Izuku wheezes out, scarcely able to breathe. "We can talk about this. W-We can— why are you doing this?! Please, don't!"
The only answer he gets is a hot, slimy tongue slicking up the length of his dick and curling around his balls. Izuku's eyes roll back.
The feeling is sinful. Izuku can't contain the moan that escapes him, a long, slutty, drawn out thing. He can hardly believe it came out of his own mouth, but he doesn't get time to be embarrassed by it before that tongue is back on him again. Relentless, enthusiastic, the dog behind him doesn't hesitate to half swallow Izuku's cock.
Whatever drug they gave him sets him on fire. The sensations are strong enough to have Izuku screaming, his back bowing and tongue lolling out of his mouth. He's not sure he's ever been so shamefully turned on in his entire life, not sure he's ever felt pleasure like this before. Not by his own hand or anyone else's.
Every nerve prickles. Pleasure shoots through him like shocks from a taser. He bucks wildly, hands going white from how hard they clench, his toes curling. His mind goes blank as the dog's long tongue finds it's way into his asshole, pushing so far in its teeth scrape the rim.
"No, no, please, no!" Izuku gasps out, tears of humiliation and shame pricking his eyes, but it's too late. That tongue returns to his cock and it's over. Izuku cums.
It's the type of orgasm that rocks through your entire body. He vibrates with the force of it, soundless from its strength. It's the hardest he's ever cum, white spraying from his cock pathetically and painting the floor white. He rocks back and forth with what little wiggle room he has, eyelashes fluttering, drool slipping past his parted lips.
Izuku blanks, trembling all over. That long tongue keeps working his cock, which is still so hard it hurts. He can feel himself still spurting, cock sputtering out its last dredges in the aftershocks. Izuku gasps for air like a man dying for it.
Maybe it's seconds, maybe it's minutes. Izuku has no clue how long he sits there, cumming from an animal's tongue like a depraved whore. His captors are probably watching him. Likely, they're recording this all.
The realization shouldn't make the orgasm last longer, but it does.
There's another click right as Izuku can feel himself coming down from the explosion of pleasure. He doesn't get time to comprehend that either. The dog hoists itself up, slotting over him like it's done this a million times before. It's massive, bigger than any dog Izuku's ever seen or felt. It rests its weight across him, and Izuku gasps out loud when he feels something hot and hard like iron slap against his inner thigh.
It's heavy and thick. It bumps against his oversensitive cock, squishing his balls as it slides slickly over them. It's the dog's dick. It's the dog's fucking dick.
It's mounted him. It's going to fuck him. This isn't just any bench, Izuku realizes. He's here to be bred. He's here to be this dog's bitch, to take its cock, which feels monstrous against him. And he's got no idea why. Why someone would do this to him, why they'd choose him for this, of all the people in the world.
"Please don't." Izuku begs desperately , voice hoarse from his own moaning. "Bad dog. Bad, b-bad, bad dog. It'll break me, please, please. I-I'll split in two, I'll die. Y-You don't want to do this!"
Teeth scrape lightly against his freckled shoulder, and he moans when the dog's beastly cock slides against his own again. The size difference makes red flush across his already heated body. Compared to his own, it's a monster. It has to be at least the size of Izuku's forearm, fat and heady.
The dog jabs and jabs, getting closer to his soaked hole every time. Izuku tries to brace himself, quivering. He can feel the heat taking him over again. Each punishing thrust against his own cock makes it that much harder to be afraid. He's just so hot. He feels empty, he feels— feels like he needs it.
It's just the drugs. He knows it's just the drugs. And despite that, he still moans like a whore when that cock finally slams into him.
It's brutal. All in a single thrust, the cock stretches him wide and mercilessly. Izuku has never felt such fullness before. It chokes him, and his cock erupts with cum all over again just from the heaviness of it resting inside him.
His walls clench. Any pain is lost to the sheer, overwhelming pleasure of it being inside him. It's perfect, fucking huge and slick and hot. Izuku breaks. A single thrust in, and he breaks.
He's fought countless villains. He's underwent unimaginable hardships. Izuku has been knocked down time and time again, and he's always gotten back up again. To think all it took was some aphrodisiac and a dog's fat cock to bring him down... Izuku is glad he's too out of his mind with pleasure to feel the shame of such a fact.
"Oh, God." Izuku moans, and he doesn't care that he sounds like a slut when he does. Not when all he can think about is the cock inside him, sitting stationary. Izuku tries to push back but can't. "So big. So big, so- so- oh my god. Please, please, please."
The heat scalds him. Izuku can feel tears prick his hazy eyes as he pants. He's supposed to be Japan's number one hero, and yet here he is. Speared on a dog's monster cock and made its bitch within seconds of it being in him. Maybe he is a whore.
The dog doesn't move. Izuku clenches down again and moans, his cock straining. It wags under him obscenely as he rotates his hips, grinding to try and get some kind of friction. The cock sits deliciously against his prostate— sits against every part of him, it's so big.
Izuku's head tips, eyes rolling back again. When he presses his ass back, he swears he can feel it stretch against the taut skin of his stomach. He wonders if the cock is visible. He wonders how bad it is that he wishes he could see.
"Fuck me, come on." Izuku moans, the simmering heat pushing him far past caring. "Come on, come on. J-Just move, just— just breed me."
He is a fucking slut. Taken and now here he is, reduced to a shivering, desperate to cum mess. He didn't last. Not even a second. All it took was one fat cock and he was gone. Kacchan did always used to say the only thing quirkless people were good for was their bodies. Izuku is starting to think he's right.
Another click hits the room. The dog rips its cock almost entirely out of him and rams it back in so fast Izuku almost blacks out. He screams, feeling like his organs are rearranging around the dick filling him up.
The dog sets a punishing pace. Each thrust hits his prostate head on, and Izuku moans and wails like the slutty bitch he is. His cock slaps against his own stomach, cum spewing wildly out of it, and piss after that. He paints his inner thighs with his own juices, coherency and dignity gone.
All he can do is moan and babble. Faint slurs of "good dog" and "oh yes" and "fuck me harder" escape him, his dick leaking and broken. He is baseless, mindless as the dog drives into him, using him as nothing more than a warm hole. The animalistic fucking is brutal, done without care for his pleasure, and that makes it all the better.
Izuku is just a breeding bitch here. He cums more times than he can count and thinks distantly that if he spent the rest of his life like this, it'd be fine by him. Damn being a hero, damn saving people. If he can stay here, like this, cock in him, eyes rolled back, hot all over...
Izuku lets out another long moan as the dog's knot pops into him, locking them together. He cums dry as searing heat begins to fill him, the dog's disgusting seed pumping into him. Just when Izuku thinks it's over, another long flush of it empties into his used hole, plugged inside by the knot.
He can feel himself grow heavy with it, the seed so weighty that his stomach rounds slightly from the huge amount of it. The dog's tongue laves at the back of his sweaty neck as Izuku falls limp, twitching and moaning. His asshole clenches rhythmically around the knot, unconsciously milking it. He probably looks pregnant from it.
The dog gives a few more short thrusts before its knot deflates. Izuku isn't sure how long he sat there, speared on the cock like its personal warmer, used like a dumpster for its cum. He moans weakly, too fucked out to raise his head as the dog's knot pops out.
Seed gushes from his gaping hole immediately. Izuku cums weakly at the mere sensation of it leaking out of him, eyes rolling back again. He could hear the sound of a flap, like a dog door, the click of nails receding.
Izuku panted, trying to clear his head as globs of cum splattered on the floor behind him. His cock was still hard. He felt impossibly empty, torn between fighting the haze over his mind and submitting to it. He swallowed thickly, ears buzzing.
In the end, it wasn't much of a choice. Just as Izuku got the mind to try and lift his head again, there was a click. The sound of nails.
A cold nose pressed against his dripping cock, tongue chasing the trail of cum still leaking from his asshole. Izuku didn't get the chance to object. And even if he had...
Heavy with cum and filled full to the brim, he's not sure he would've bothered.