Thread by @0ceanlocked

Here! We! Go!!
#BottomKiriWeek2022 Day 1: Dom/sub / overstim

CW: Blood Riot / kink negotiation / quirk play / spanking / degradation / I'll add more later if I forgot here (very likely lol)

In which Pro Hero Katsuki finds his nemesis at his favorite kinky club.

Bakugou had finally done it, he'd finally managed to find his nemesis, Blood Riot. The only problem was that the asshole had been in a bdsm club, the club /he/ frequented.

The villain wasn’t supposed to know this very personal information about him, but he was a pro-hero he /had/ to apprehend him. But damn it, if he did that right now, at the club, he’d have to find a new one and it had been such a pain to find this one.

It was the only place where he felt truly safe to let go and be himself, to let go of the pressure of being a pro-hero.

“Well, well, well…” a sultry voice sneaked up on him, “if it isn’t my favorite pro-hero… you know, with a name like Great Explosion Murder God Dynamight anyone would think you’re a villain…” Katsuki turned to face the mountain sized man, looking up from his bar stool.

The man was wearing a mesh shirt and leather pants, resting around his neck was a simple collar. In this club doms wore variations of a key in a chain around their neck and subs wore collars with locks if they were taken.

So when Katsuki saw, not only the collar itself but also the empty metal loop at the front he couldn’t help the smirk that crept up his face.

“With a name like Blood Riot nobody would think you like being dominated.” He bit back, leaning unto the bar behind him, spreading his legs clad in black ripped jeans.

He hadn’t planned on getting into anything that night, he’d just gone to the club to enjoy the scene, but now… the idea of having the redhead kneeling in front of him at that very second was all he could think about.

“Can’t blame a guy for enjoying a good tossing around…” Blood Riot smirked getting all up into the blond’s space, arms enclosing him, cutting him off from the rest of the crowd. “I think that’s why let you catch up to me out there…”

“Tch, let ME catch up?!” Katsuki snarled and reached for the other man’s hair, tugging it hard and pulling a sinful moan from him. “You couldn’t dream to keep up with me shitty hair. Should’ve known you liked it when I pinned you down, what a slut.”

He let go as suddenly as he’d grabbed him and the villain felt to his knees, face right in between Katsuki’s legs, exactly where he wanted him. The blond quirked a brow when he caught the redhead staring at his crotch, pink dusting his cheeks. "You want it that bad slut?"

“Oh my god,” the redhead muttered under his breath, “I do, I’ll be your good little slut Dynamight.” He panted, crimson eyes trained on carmine ones and it took Katsuki all of a second to recover from his astonishment and putting his poker face back on.

In all fairness, most of Blood Riots’ crimes were for property theft and damage, he’d never actually hurt anyone (that Katsuki knew of at least) so he figured, why not. After all, if he kept him busy as his sub, the less time he’d have to actually do crimes.

[ho boy this is gonna become another wholeass fic of mine ain't it lol]

He turned to the bar tender and requested a private room, and a leash.

“If we’re doing this,” he started, “you stop being a villain.”

“What? No fucking way.” The redhead retorted, almost backing away and standing up before Katsuki stopped him by grabbing his collar.

“I can’t be your dom knowing after we’re done, you’re gonna go blow up a building and rob a bank.” He stated clearly.

“And just so you know, if you say no, I’m leaving tonight and you’ll never see me neither here or out there again. It’s a conflict of interest, I can’t have that when I’m out there tryna save the fucking day.”

“I… I don’t know if I can do that…” he mumbled and Katsuki let go of the collar “b-but I’ll try… I’ll try to be good for you… Sir.” He added and the blond felt the hairs on his nape stand on end.

“I guess that’s all I can expect…” Katsuki said, clipping the leash to the collar. “Let’s get somewhere more quiet, I’m gonna enjoy taming you slut.”

🔑🔒

“Ok, so, first of all,” Katsuki said as he closed the door and pushed the villain to his knees once more, “what am I supposed to call you? Seeing as we intend on putting Blood Riot to rest and all.”

“Like, my name?” He replied.

“Nah, we can build up to that, besides, I need to know I can trust you before I give you mine, so that wouldn’t really be fair on my part.” Katsuki hesitated. “I can’t have all the power over you like that, would make me a shitty dom.”

He stroked the other man’s hair, he was so used to seeing it disheveled by their fighting, he’d never been able to appreciate how pretty a red it was. “How about Red?”

“I like that…” Red answered then added, “sir...?”

“Fuck yeah,” Katsuki sighed, “you can call me sir or master, but don’t fucking use my hero name. When I’m with you I’m not Dynamight, understood?” He'd first gotten into the scene to get away from the pressure of being the perfect number 1 hero.

“Yes, master.” They both shivered and Katsuki had to hold back a snort at that.

“Second,” Katsuki hesitated again, “this isn’t about sex for me, it can be a part of it, but…”

“Same,” the sub interrupted and Katsuki gripped his hair in retaliation.

“Do not interrupt me Red,” the blond raised his brow when he saw the hint of a smirk on the redhead’s face, “you can be a fucking brat sometimes, huh?”

“Maybe?” He smirked fully and got another hard tug at that, pulling a whimper from his lips, “yes, I’m a brat sir…” another tug “Ah… my past doms could never tame me, not truly…”

“I guess I have my work cut out for me then.” Katsuki let go, “what I was going to say, is that even though this is not about sex for me, I really wanna fucking nail you to that bed right now.”

“Yes, please, please, please…” The sub moaned, suddenly the leather feeling like a cage on his crotch. “I’ve wanted it for so long master…”

“Well too bad, you're gonna have to wait a bit longer,” Katsuki replied with an evil looking grin, “after all, you have a debt to pay.”

“W-what?”

“Did you really think I would let you off the hook after a life of crime?” Katsuki tease, gripping his chin, “you need to be punished Red.”

“No fair!” He retorted, “I thought you said you weren’t a hero here!”

“Then consider this a citizen’s arrest,” the blond chuckled, and the redhead pouted “should’ve thought about it before becoming a villain. Hard limits?” He asked simply.

“Scat, and quirk dampening shit” he half joked but was also serious, “I’m literally unbreakable, like, I can go for anything and if it’s too much my quirk will kick in by itself. I need to have that available. Besides that, I’m good for anything.”

“Good…” Katsuki pondered, “I know it’s kinda late to ask, and you seemed into it, but are you good with name calling?”

“Fuck yeah.” He moaned.

“Okay then,” Katsuki said then tugged the leash, “now be a good little slut and get on the bed. All fours, that juicy ass of yours up high for your master.” The redhead complied immediately and Katsuki thought maybe he wasn’t that much of a brat after all.

When the leather clad ass was the first thing in his line of sight he had to make an effort not to immediately ignite those pants away and dive face first in between the villain’s perfect globes.

CW: Katsuki has a sadistic streak and Eijirou reaaaally likes it

“For past crimes you’re getting twenty strikes, you better not lose count or we’re starting again.” He didn’t wait for an answer before slapping the bubble ass in front of him, hard, making it jiggle and he wondered what it’d look like without the confinement of the tight fabric.

“One…” Red sighed, barely reacting, which got Katsuki clicking his tongue before activating his quirk, the sweat in his palms igniting upon contact. The smack was loud, sure, but not as deafening as the filthy moan that erupted from the villain’s throat.

“Two...” the redhead panted, trying to catch his breath and Katsuki smirked, he’d always wanted to try quirk play but he’d never had a sub that could withstand it. He delivered a few more slaps in quick succession but early as hard, letting the villain fumble through the count,-

before giving in.

Katsuki caressed the cheek softly and the villain flinched as if expecting the hit, the blond wondered if he'd ever experienced a soft touch before, but he filed that for another time, tonight they were letting off steam.

He thought of disintegrating the other man's pants but it'd be rude to leave his new favorite sub with no pants in the middle of downtown, so instead he made his way around wide hips and groped the bulge hanging below. Red gasped.

"You're enjoying this too much," the blond murmured, "how many do you have left?" he asked as he squeezed the hard length through the now offensive textile.

"Seven..." Red mewled, hips softly rocking against the hero's hand.

"Tch... time you get a real ass-whooping then." Was all he said before making quick work of the redhead's button and zipper, pulling his pants down to his knees and then manhandling the man to lay face down across his lap as he sat on the edge of the bed.

The villain was taken completely by surprised by the sudden change and would've fallen on his face were it not for the vice grip the hero had on his hips. Just as he started gathering his senses his bare ass was burning from the quirk powered slap.

"Ngh!" He only managed a moan.

"How many, whore?" The blond growled over him. "Are you that much of a pain slut that you can't focus on a simple task?" He waited a beat for the villain ton answer, before gripping the long cock hanging between his spread legs and squeezing hard,-

"maybe I should start again on a different place?" he softly slapped the heavy meat stick causing it to swing before grabbing its leaking head. "Maybe this unless cock of your..."

"Nonono, pleasepleaseplease keep slapping my ass master, it's 14," Red stumbled over his words.

"You must've had some shitty ass doms if they couldn't get such a disgusting pain slut like you to submit." He sneered.

A part of him wondered if he was taking it too far, villain or not Blood Riot was still a person and he was still a Hero, but the twitch and gush of pre now coating his hand put him back at ease. He knew then he could be as rough as his heart, or more like his cock, desired.

"Very well, keep counting whore, I might just reward you if you don't fuck it up." He grinned before starting up again, palm igniting with every hit, and boy did his imagination moments ago not do justice at the delicious jiggle every hit gave to the villain's butt.

"Twenty!" Red gasped and Katsuki admired his work, the villains round ass was now tinted a sinful shade of red, the outline of his handprint in a few places. He was about to soothe him a bit until he realized the villain wasn't shaking, he was humping the air between his legs.

"What a masochistic little whore." The blond scoffed reached under him once more and gripped his dick at the base. "What would your villain pals think if they saw you like this? Like a bitch in heat begging to be fucked?" Red could only moan, trying to fuck into his palm.

"Stay still." He ordered, but the redhead wouldn't stop squirming, he needed release and he needed it now. Katsuki slapped him once more in warning and repeated his order, squeezing hard at Red's base.

"Y-you said I'd get a reward." Red moaned, he needed to come.

"Yeah, well, disobedient brats don't get to come." Katsuki said, pumping him a couple of times before removing his hands from him altogether. "Are you gonna be good?"

"Yesyesyes I'll be good, I'll be good, I promise." Red whimpered with a shiver as he willed his body still.

"Hum, you come when I say you do, got it?" Katsuki said and Red nodded furiously, he then helped him up and to lie back on the bed. "Can't you keep your hands in check or do I have to tie you down?"

"Ngh... please tie me down master, I wanna be good for you." The redhead sighed.

[oopsie this got away from me lol]

CW: bondage / edging / anal fingering / OH MY GOD I FORGOT TO TAG NSFW IN THE FIRST TWEET🤦‍♀️ / maybe mentions of past abuse ? idk how deep this is going but Ei's past doms were dicks so proceed with caution

Katsuki moved around the bed and grabbed the leather cuffs already attached to the headboard, fully aware that even without his quirk Red could easily break free from them, but if he was half as good at reading his subs as he thought he was, he knew the villain wouldn't try to.

Once the redhead was tied down and spread on the bed Katsuki admired the sight in front of him. He had never really stopped to look at Blood Riot before, sure, he'd noticed he was a fucking one man demolition crew with his quirk and build but he'd never actually seen his face.

Not without the sharp and scary lines of the unbreakable cutting through it. Now, relaxed and begging to be fucked out his mid, the jagged scar running through his right eye and halfway down his cheek made his features look more beautiful than intimidating....

The wall of muscles of his body finally took shape under his gaze, what he was used to seeing as hard unyielding limbs flying at his face in the flurry of battle, had now become almost nimble and flexible.

The rough skin he was so used to punching back was actually quite delicate and sensitive, and for a whole thirty seconds Katsuki didn't know what to do with himself.

His nemesis, the terrible villain Blood Riot, was not only an objectively gorgeous man, but he was also the perfect sub for him. Someone that would challenge him just as much as he wanted to submit to him, someone that not only could take the worst parts of him, but craved them.

"Fuck..." He whispered under his breath at the realization. This was dangerous, if he had any sense left in him he'd pull the guys pants back on and take him into custody, he was a wanted villain after all. But he didn't, and he couldn't because he was already too deep in.

Red whimpered, snapping him out of his spiral and he brought his hands to the man's mesh covered chest, groping those voluptuous pecs through it before rubbing his thumbs over the hardened nubs.

"So much for not making it about sex tonight," he chuckled as his pants tightened.

"Yeah, wasn't planning on getting this far either," Red gasped with a smile ghosting over his lips briefly, that's when it his Katsuki.

"What do you mean 'planning'?" He asked as he pinched the other man's nipples with intent. "Have you seen me here before?!"

"Ah!" Red arched his back, leaning into the sharp pain, fuck, "if you keep doing that I'm gonna cum." He heaved, ears as red as his hair, he was far more on edge around the hero than he'd ever want to admit. When Katsuki let go he continued.

"I wasn't exaggerating when I said I've wanted this, wanted you, for a long time." He mumbled, god he hated how easy it was to be vulnerable with the blond. "So... like... I followed you here once..."

"You stalked me here?!" Katsuki raised his voice, more upset he hadn't noticed it than about the actual stalking. Maybe he had more ear damage than he thought, he made a note to himself to go get it checked later.

"Then what, you became a sub all of a sudden? Dude you can almost take me in a fight, why do you want me?" He pondered, lightly twisting and pulling the man's left nip between his fingers, getting a choked sigh out of him.

"I don't know okay?" he bit his lower lip. "I know it's weird."

"I don't think it's weird," Katsuki responded somehow relaxing at that, moving on to the other nip and eyeing the redhead's cock twitching in interest. "after all, you want to be good, don't you?"

"I- yes, I wanna be good, for you, master..." Red shivered as he felt the heat of Katsuki's hand wrapping around him. "Only for you..."

"Humm... I'm assuming you've had other masters before me?" He pumped the man's cock with a torturously lazy pace.

"Yeah..." Katsuki didn't miss how the redhead avoided his gaze at that, so instead of pressing on he sped up his hand.

"Bet those extras were shitty as fuck." He stopped when he felt Red's dick twitch in his hand and the redhead groaned.

"Bet they didn't know how pretty you could look when being good little slut for your master..." he was cut off by Red's escalating moans. "Oh no you don't." Katsuki squeezed his base once again.

"Ah Come. On. I can't take it anymore." Red sobbed as his hips bucked up.

"I'm not done with you Red." Katsuki leaned forward so that their faces were only centimeters apart, the sudden urge to kiss the other man almost breaking his resolve. "Since you /weren't/ planning on going this far tonight, I'm guessing you didn't prep at all?"

"Prep?"

In lieu of a reply, Katsuki moved his hand down and prodded at the redhead's entrance with a nimble digit, drawing a gasp from the taller man before he denied with his head. Katsuki hummed then reached into a cabinet, ripping a foil packet of lube open and dipping his finger in.

"Good, I'm gonna enjoy opening you up." Katsuki smirked as he barely pushed a slick digit past the redhead's ring of muscle, he heard clinking and looked up to see the other man tensing against his restraints. "Is this okay?" Red nodded, "okay... then relax for me, yeah?"

Katsuki then emptied the rest of the lube on the villain's entrance and got a shiver in response.

"S'cold." The villain breathed out, clearly trying to will his body to relax. Katsuki chuckled and reached for the other man's cock once again,-

mixing the cool stickiness of the lube in his hand with the warm one of the leaking tip. He flicked his wrist around it a few times before slowly pushing his finger further in.

A few moments like that and Red had become a panting moaning mess as Katsuki switched to pumping his finger in time with the movements of his right hand.

"AH!" Red screamed when Katsuki curled his finger into his prostate, body quaking with pleasure and Katsuki let it happen.

Red's orgasm hit him like a wrecking ball, and he would know, he'd acted like one many a bank robbery. It coiled in his core and burned through his body, and it just kept going forever... as did Katsuki's hands, not for a moment did they stop moving, not even after it was over.

"Ah... Master, please stop..." He squirmed trying to get away from the blond, choking in his words as hi felt the pressure of a second finger breaching him. "Nononono it's too much! Please master stop!" He whimpered as the pleasure turned into pain and back to pleasure again.

"C'mon Red, I thought you said you wanted a reward?" Katsuki teased, slowly easing his second digit in, then beginning to scissor him open and let go of the oversensitive dick to Red's momentary relief.

"I bet I can make you cum just from your ass." He mused spreading the cooling spend all over the redhead's exposed abdomen.

"No wa-AH!" Red's moans fueled Katsuki's resolve to do just that, pumping and twisting his fingers over and over against the villain's sensitive spot.

Red was still so sensitive from his first orgasm that when the second hit he did not see it coming. But it was different, he felt the familiar pressure of climax building in his core but when he tipped over the edge, it didn't burst.

Instead a slower more constant pleasure washed over him, wave after wave as Katsuki kept abusing his prostate, and then he saw white. When he came to all he could feel was his ass clenching around Katsuki's still fingers and his dick twitching uselessly, still half hard.

"W-what? but I..." He furrowed his brow at his dick. He was sure he'd had one, if not the best, orgasms of his life. "How..."

"Dry orgasm." Katsuki smirked pulling out his fingers unceremoniously and leaving him to whimper and clench around nothingness.

"I would've kept going but I think that's enough for tonight." Katsuki mused the chuckled. "Don't want your brain melting or something like that." He moved on to unstrap the cuffs from his wrists.

"I... I never felt anything like that before." Red mumbled. "What about you?"

"Oh, don't worry about that. Scene's over." Katsuki replied offering a hand to help him sit up.

"But," he furrowed his brows as he took the blond's hand and then the tissues he'd offered him. "You didn't get off?"

"But you did, and that's what matters to me." Katsuki shrugged.

"I don't get it!" Red pouted, tossing the soiled tissues to the side. "S'not how it works! /You're/ supposed to get off! You're my master! That's how it works! If master gets off then I'm good! I-St-stop!" He tried to push Katsuki away as the blond hugged him.

"S'okay, you're safe with me Red." Katsuki shushed him, hugging him tighter. "You are good, so good for me Red. It's okay, you can cry it out, I'm here for you."

"M'not... not crying..." Red hiccuped, only then realizing his cheeks were damp. "W-why am I crying right n-now?"

"I'm not sure..." Katsuki pondered, "could be just your body reacting from coming off subspace, I don't know if you noticed but you got pretty deep there toward the end. Did you not do that with your previous doms?"

"No?" He sniffled again, slowly leaning into Katsuki as he rubbed his back. "I mean... most of the time when I snapped out of it they were gone, so..."

"Hold up, they didn't stay for aftercare?" Katsuki exclaimed, blood boiling.

"Pft, I'm a 'villain' blasty, I don't need-."

"Shut up." Katsuki growled, hugging him impossibly tighter. "If you ever say you don't need basic human decency again I will blast you all the way to America. Saying you don't need aftercare is like saying you don't cuddle after vanilla sex."

"I don't-" he got cut off again.

"I said shut up." Katsuki pushed his shoulders so that he looked him in the eye. "Do you wanna keep being my sub?" he nodded "Then know that there will always be aftercare after a scene and that if I don't get off it doesn't mean I didn't enjoy it or that you weren't good Red..."

"Eijirou... my name is Kirishima Eijirou..." Red, Eijirou, said with pink dusting still damp cheeks. Katsuki bit his own cheek at the sudden sharing of information, wondering if it was still from the drop he seemed to experience, but somehow decided to trust him anyway.

"I'm Katsuki..." He sighed, wiping Eijirou's cheeks with his thumbs. "Eijirou..." He liked the way the redhead's name felt on his lips. "Since you've been stalking me here, I'm guessing you already know where I live?" He shook his head. "Really?"

"That'd be too fucked up." He smiled with enough innocence Katsuki almost bought it. "No like for real, I'm a villain but I'm not deranged or anything."

"Says the guy that took a whole building down with his naked fist just to make an easy escape." Katsuki chuckled.

"Dude! Do you realize how much money I was carrying??!! I wasn't about to let that go!" He exclaimed cheerily and Katsuki honestly laughed.

"What'd you do with it anyway?" Katsuki asked when he managed to control his breathing again.

"Gave it to my friend, she needed it for her surgery..." Eijirou admitted with sheepish smile.

"Are you trying to tell me that after all these years of me chasing you," Katsuki's brows rose, "you're just some guy with a Robin Hood complex and a hella cool quirk?!"

"You think my quirk is cool?" Eijirou blushed.

"Dude! You're fucking unbreakable! hell yeah your quirk is cool." Katsuki grinned. "Could've been number two hero with it, give shitty Deku a run for his money."

"Why not number one?"

"There's only place for one number one, Red."

🔑🔒

TBC either as part of this week's event or as its own thing. I think I fell a little too hard for this au 🥺❤️

See y'all tomorrow for day two!