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Bad Choices Made Easy

Summary:

Bakugou Katsuki is furious at Shouto and Deku, his anger at their misdeeds too much to handle.

So when Dabi spots Katsuki searching for a fight to let off steam, he offers him something even better - a petty revenge.

Notes:

Gosh i love when I get a prompt where I can go a little feral. Thank you, dear anonymous! I hope you enjoy ❤️

click for spoilers re: implied cheating

I don't do romantic cheating fics. So... there's no romantic cheating in this fic, despite Dabi's assumptions. Godspeed. There is nothing else I can say lmao.

Work Text:


 

Katsuki feels the hot burn of tears aching and building pressure behind his eyelids. Hatred in his head, he crumples up the damning piece of paper and explodes the message into a fiery mess of ash. 

Todoroki Shouto is going to pay for this.

Deku too. Both of them are going to regret messing with Bakugou Katsuki. He wants to smash his fist in Deku's face and rub Shouto's nose in the dirt. To feel their blood smearing his knuckles would give him a great satisfaction. 

How dare they treat Katsuki this way - did they think he is so stupid, so oblivious to the red flags flapping in the wind? The note just cements the issues surrounding their behaviour. Deku especially - the upsurper. It is not enough that Deku lied about his quirk, his abilities - treating Katsuki like a fool by flaunting how much 'better' his personality, his liars quirk is - but then he just had to go off and ruin Katsuki's work on that candycane bastard too.

The words of rejection from that piece of paper burns in Katsuki's mind and he howls, his fist finding the first thing it can destroy. Drywall scrapes open the back of his hand when the punch lodges it deep in the wall.

Disgruntled, Katsuki yanks his hand free and goes hunting. The wall is not crying enough for his liking. He needs Deku and Shouto to beg for forgiveness.

He needs his promised match, skin against skin and power coursing through his veins as he secures a win.

 Extras cower out of Katsuki's way, dodging behind doors and running for the exits. As if they can sense his righteous anger, Deku and Shouto are nowhere to be found. Insult after insult - they can't even face him in person. It makes the nitroglycerin on his palms sizzle, his vision tunneling on thoughts of revenge.

Katsuki makes a bold decision and takes a right turn out of the building and into the cool night air. If Deku and Shouto are running from him, Katsuki isn't going to waste his time chasing the assholes down. No - fuck that. Katsuki has to do something else, anything else to rid his body of the rage bursting at his ribcage.

Looking for a fight, Katsuki steps off the safety of UA grounds. 

Come on criminal underworld, Katsuki prays to Satan himself. Give him an asshole to crush. One face to break that's all Katsuki needs. A stand in for Deku, for fucking Shouto. Someone Katsuki can wreck and face no consequences.

No different than a lion searching for prey, Katsuki stalks the streets. Delving further and further away from UA, the roads grow sketchy. Drunks stumble and shout at each other, stinking of beer and stale sweat. Katsuki turns his nose up at them, not wanting their puke on his good boots. The longer and longer it takes for Katsuki to find a victim, the more his anger settles into a mass in his chest, a pressure.

It hurts - it hurts in ways Katsuki doesn't want to describe, doesn't want to investigate.

The pressure slowly boils over, bringing with it the sharp sting of unshed tears. Katsuki chokes on a sudden sob, muffling his traitor mouth in his aching, bloody fist. Fuck, fuck - Katsuki is goddamn crying on a street corner in the roughest part of town he can reach on foot. In the meantime, Deku and Shouto are probably living it up, having a grand, gay ol' time - it sucks. It sucks and Katsuki is sick, his stomach turning and more tears blurring his vision.

"Pretty thing like you shouldn't be wasting your makeup to tears," a husky voice coated in ash and smoke springs into existence from the mouth of the alleyway. "Must be something horrible to make a strong boy like you cry, Bakugou Katsuki."

"Dabi," Katsuki gasps, instantly on edge. He knows that voice, he remembers the smokey cadence purring in his ears during his kidnapping, too hot fingers wrapped around the back of his neck and the cocky smirk on his face.

Dabi indeed. The villain smoothly stalks out of the dark alleyway, standing too close to Katsuki under the streetlight. Shadows cast out around him, highlighting his lanky figure and tall stature. Countless staples gleam on his face and elsewhere - noticeable under the stretched out collar of his ratty shirt and dark jacket. The pale palour of his skin adds to the creature of the night look. Dabi takes a slow draw on his cigarette, the tip burning nearly blue hot before more smoke wafts second hand into Katsuki's lungs.

"Asshole, I don't have the patience for your bullshit," Katsuki rubs at his tear stained cheeks with the cuffs of his sweater. No way he is dealing with Dabi while his eyeliner runs. "Fuck off - unless you're looking for an ass kicking."

Dabi nonchalantly blows smoke out of his mouth, his lips quirking around the cigarette. "Nah, too much effort to hide your body. It's late, kid - way past your bedtime. Tell big brother who broke your heart."

"Oh sure, 'cause the dramatic gossip of the hero student you kidnapped is what you're interested in. I'm not telling you shit." Katsuki glares. 

 Dabi shrugs. "Could just be some unused instinct I have buried deep coming to life at the sight of your tears. Did you know I'm the oldest son? I got a baby brother your age, I'd shake with all sorts of emotions if I caught him crying on a street corner this late at night. Humour me, Bakugou Katsuki - tell your good friend Dabi what's wrong."

"I need someone to punch, that's what's wrong. If you lean down a little, I'll make quick work of the solution."

Dabi laughs a strangely pleasent sound. "Yeah, I like you. Sucks to be anyone in your bad graces." 

Everyone is in Katsuki's bad graces tonight. A moment of weakness has Katsuki sympathizing with Shigaraki's desire to watch the world burn. Fuck it - fuck it all. Katsuki is standing in the middle of the night with the weirdo villain who offered. Offered to listen in his roundabout way. 

"If you think the hit I'll land on you will hurt, just imagine what that two-toned hypocritical asshole will look like when I'm done with him," Katsuki kicks at the ground, his nose stuffy. He sniffs uselessly. Katsuki has nothing to lose by talking. He can always blast Dabi to bits at any point in the conversation - in fact, he is ready for it, waiting.

Dabi freezes. "Todoroki... Shouto. What a coincidence. I dislike him very much as well. But I'm confused - isn't he your best friend?"

"No!" Katsuki snarls, insulted. "He said that. Like us spending all day and night together means anything to him. I'm always stuck dragging his ass around - teaching him how to cook and making meals together. His pathetic face even needed me to hold his damn hand watching some corny movie. He proved that none of my time means anything to him - and now he has fucked off with Deku! Goddamn asshole left a post it note and blew off our plans together all because of that lying, hypocritical nerd!" Katsuki is too enraged to finish, his words cutting into a silent indecipherable howl. 

Dabi flicks his cigarette to the ground and smashes his heel into the litter. "Okay hero, I get it. Baby Shouto broke your heart, ran off with some other guy. Wanna get revenge?"

"Hah! I ain't going to be a villain creep. Again, let me punch you."

"Nothing villainous, and nothing violent." Dabi croons. "Just a little petty and childish. I mean, why not just show Shouto exactly what he is missing out? Me, you... a nice warm room with a nice big bed."

The pointed heat of Dabi's smirk and hot gaze finally breaks through the wall of incandescent desire for a good round of fist cuffs surrounding Katsuki and he stumbles back, his jaw dropping. "The fuck?!"

"Yeah, we can fuck." Dabi raises his hands guilelessly. "You got your phone on you, you can take photos of me flat on my back and at your mercy - getting the ride of a lifetime that poor, stupid Shouto's denied."

Katsuki is rendered speechless. What - what? Dabi the villain thinks the best way to get revenge on IcyHot and Deku is by Katsuki fucking him? 

Not - not that Dabi is unattractive by any means. In fact, the villain is unfortunately a stereotypical dead ringer for the checklist of what Katsuki's mother likes to call his "bad boy bad ideas" crushes. Dyed hair, more metal in him than a pincushion, well fitted but artfully destroyed clothing and an attitude to make a nun faint. God, he looks hot too - and not just esthetically. The night chill is setting in now and Katsuki shivers, cold.

Dabi could definitely warm him up - inside and out. Much more than that half-icy asshole. 

"Thinking it over, baby hero?" Dabi cocks a hip, his long fingers curling a little to raise his shirt hem, a tiny sliver of skin showing through. "I'd take real good care of you. Kiss you sweetly, fuck you roughly - I know how to fuck, how to spread your legs and lift your hips, get my cock deep in your body - fill you up until you ache so prettily."

"Kidnapping me wasn't enough, tch. Now you're trying to seduce me?"

"Is it working?" Dabi chuckles darkly. "But no League involvement here, hero. Just me and you against the Todoroki jerk. You get the satisfaction of knowing that you don't need that little princeling around, that you can do more and do better than him any day. And for me - it's almost an irresistible thought to get to take away something he likes."

"You're a petty fucker." Katsuki's cheeks are warm, his heart racing at the forbidden thoughts, the corruption Dabi sends his way.

Because - yes, damn him. Katsuki is thinking about it. Why shouldn't he fuck a villain, showing his classmates that he is the best - that there are no limits to what he can accomplish. Dabi is a massive threat and - and there's is a power to dancing with the danger. Adrenaline, success - and a primal satisfaction, a release from the coiling emotions that Shouto's and Deku's betrayal left in him.

"Where? I am not taking you back to UA." 

Dabi's darkly intent smirk is a direct line to Katsuki's stirring erection. "I know just the place."

 


 

Katsuki can't believe Dabi's taken him here. 

"Extra safety for you," Dabi gestures around like the insane bastard he is. "Look at me being mindful of your well-being, do I get a cookie?"

"This is Endeavor's house!" Katsuki hisses and fluffs up like a feral cat.

Dabi rolls his eyes and presses a finger on the biometric lock. It beeps green and the mechanical sounds of clicking locks opens the gate. "Relax. See - I'm keyed in, I'm allowed to be here according to this dumb security system."

That raises more questions. Questions Katsuki can't wait to ask when he is not sneaking into a pro-hero's house in the middle of the night. "We are going to get caught - I'm interning with him, Endeavor will kill me."

"I won't let him." Dabi promises, deadly serious. "But he ain't home. No one is, see! Hello! Here I am, I'm home!" Dabi's voice echos down the empty hallway and nothing responds back, the air slightly stale and unmoving.

Katsuki hesitantly steps inside, his footsteps soft and head on a swivel, like HellFire is about to rain down on them any second despite the absolute emptiness of the Todoroki family home. Dabi has no such care as he maneuvers through the house like he owns the place. The silhouette of Dabi haunts the halls and heads right to a door, sliding it open with a flourish.

"... is this IcyHot's room?" Katsuki chokes on a cackle. Seriously - okay, Katsuki has to admit that the unmitigated gall to fuck around in Shouto's room does ease a lot of the turmoil of what the fucks gotten into Katsuki to be doing this. The old buried impulses of Katsuki's bullying youth wiggle with glee.

The room itself is unbelievable - dull walls, traditional floors and not a spec of personality. Barren, cold. Explains a lot, Katsuki sneers.

"Holy fuck, monks have more material interests than him."

Dabi traces the ledge of the bookcase, peering at the studious texts - nothing more fun than thermal dynamics to see. "Daddy dearest is strict even with the new baby, huh. Ah well - let's air out that futon for him. Not good for it to stay in storage long term!"

The futon gets tossed to the ground and Katsuki is reminded once again he agreed to fuck a certifiably insane person. His nose curls up as he calls his own sanity into question. 

"Romantic. Toss a futon on the floor and call it a day." Katsuki pokes the bedding with his toes. "Give all your hookups this type of treatment or am I lucky?"

Dabi's coat falls to the ground and his shirt comes off in a smooth twist of his arms over his head. The sharp cut of his hips stand out on the too-tight and too-low pants, painted on in a way that has saliva pooling in Katsuki's mouth. The lazy tilt of his mouth, the bright blue of his eyes are suddenly more important than the couple of inches of comfort on the barren floor.

Dabi steps into Katsuki's space, his tall body looming and sending a sharp shiver of pure adrenaline through Katsuki. "Who said we were going to the futon first? I put it down for you baby. So if you get too weak to hold yourself up when I fuck you against the door."

"Tch," Katsuki bites his lip and grabs Dabi by the belt loops of his pants, yanking him forward until their legs press together in one line of heat. "All you villains ever do is talk. Put your money where your mouth is, Dabi."

Their mouths slam in a clack of teeth. Biting and bruising each other's lips, Katsuki eagerly tastes the ash and tar on Dabi's tongue. It's objectively gross, gross and a sign that this is wrong - Katsuki is kissing the wrong type of guy. A villain, a smoker who gives no shit about his own health or the health of others, a complete antithesis of who Katsuki's should be dallying with, who he should be allowing to kiss him. 

But Dabi's tongue does a move that has Katsuki shaking in pleasure, his back arching as Dabi dips him, hand at his ass and hand at his throat. It tastes like sin, like being devoured in an inferno.

Katsuki's knees do grow weak.

Dabi presses his smirk on the thin skin of Katsuki's jaw, his teeth sharp on his earlobe. They walk backwards until the solid presence of the door supports Katsuki. The melted smoothness of Dabi's skin is strange under Katsuki's searching palms but it doesn't stop Katsuki from feeling around the powerful muscles along his arms, his chest and map the panes of Dabi's abs. Katsuki stares at the ceiling with dazed eyes as Dabi sucks a harsh hickey on his neck, his hands teasing on his ribs.

"You are delicious," Dabi grunts, his soft voice at odds with the way his nails scrap under Katsuki's shirt and stroke his nipples. "Wanna get my mouth on all of you. Taste your naughty places."

Katsuki thrusts, rubbing his trapped cock on Dabi's thigh. "Do it. Get on your knees and suck my cock."

Dabi laughs mockingly. "Hmm, we will see." He drops to his knees at least, the top of his head showing his natural roots starting to come through. Katsuki gently touches a strand of white first before raking his nails cruelly on his scalp. Dabi retaliates in a sudden tug of Katsuki's pants off and thrown into the far corner, underwear and all.

The smirk Dabi gives him leads a harsh fluttering of millions of tiny butterfly wings in his stomach, a devil's promise. One leg gets tossed over Dabi's shoulder. His hips tilt up and then Dabi's face disappears.

Katsuki wails. 

A scorching hot tongue invades his hole with no warning. Wet, Katsuki's nerves scream at him, wet and too much, too fast. Dabi's tongue is long, firm as he licks inside and around the rim. Strong flicks and unrelenting pressure has Katsuki's hole twitching, his toes curling and thighs shaking. Katsuki doesn't know if he wants to push away the sensation - or if Dabi stops, Katsuki would die. He feels like he is dying right now, each lick of overwhelming heat burning him up, his cock standing so full and tall that Katsuki's stomach is covered in a puddle of pre, staining his shirt sticky.

Dabi points his tongue up and shakes his head, the metal on his cheeks digging delicious lines into Katsuki's skin, making him howl. Katsuki is loose, loose and empty, he wants Dabi's tongue deeper - he wants to have it all. Katsuki's supporting foot scrambles on the ground trying to find purchase to chase the tongue on his hole.

"Ah, ah. Fuck - more. Get your fingers in me, get deeper - I need to be full, it's so wet you can slide right in." If Katsuki has a mind left, he would be shaking with the embarrassing way his voice trembles breathlessly, teetering on the edge of begging.

Dabi doesn't answer - he keeps going, tongue-fucking Katsuki's hole. Katsuki can't stand it, can't resist anymore and his hand flies to his cock. Stroking in time with Dabi's filthy tongue, Katsuki cries out in a loud shout as he grips his cock and cums. The warm white strings make a mess of Katsuki's fist, his orgasm so violent that cum sprays on his shirt, the fabric a lost cause as it quickly becomes soaking wet.

There's a pleased hum between Katsuki's legs.

And then a fresh lick.

Dabi keeps going.

"Oh god," Katsuki sobs. His foot slips and the world spins, Dabi somehow catching Katsuki and turning him to brace against the door. Katsuki's legs are spread wider like this, exposed to the room as his cheeks are pulled apart for Dabi's mouth. Katsuki closes his eyes and arches his ass back, his head cradled on his forearms. 

Dabi sucks on Katsuki's hole. Obscenely wet noises echo in harmony with Katsuki's pathetic moans. It gets louder as two long fingers prod the worked over rim, tugging his hole wider before thrusting inside in a deep, steady stretch.

Katsuki's cock is a spent, softening thing but not for long, not when Dabi is spoiling Katsuki for attention and pleasure. Dabi's fingers rub along Katsuki's prostate, teasing and drawing out a new medley of sensations between his fingers and tongue and mouth. It could be hours, it could be minutes but Dabi pulls his mouth away from Katsuki's poor hole and sinks his teeth into the meat of Katsuki's ass cheek.

"Deep breath in." Dabi warns and there's a rustle of fabric, a zipper opening and a cock kissing Katsuki's hole. Air enters his lung in a grateful gasp at the same time as Dabi fucks forward, fucks in.

"Big," Katsuki croaks in disbelief, Dabi rearranging his guts effortlessly. "So big."

"Yeah baby, take it - take my cock." Dabi growls in Katsuki's ear, his fingers bruising Katsuki's hip bones as he holds on and fucks hard. Their skin slaps together, Katsuki's ass cheeks turning red at the constant hammering to his insides. His hole is stretched wide by Dabi's girth and he takes it like the accomplishment it is, his stomach bulging at the depth Dabi can reach.

Katsuki has to slam his palms up on the door, his body rocking at the rough thrusts. A sizzle and sharp burst of nitroglycerin igniting against the door burns a mark on the material but Katsuki simply moans louder, his hole clenching and clinging to Dabi's fat cock. Dabi is the one who snags Katsuki's wrists, yanking them together like a rein, a leash at the lower tip of Katsuki's spine. Dabi fucks faster, harder - no one caring about how Katsuki's face is drooling against the door, his spit and panting breaths staining the wood.

It feels so good. Bent over, stretched out. Drooling and used. Katsuki is not anywhere near close to orgasm again but Dabi grunts and fills his insides with a load of cum, his cock grinding deep as the wave of fluid floods him.

Cock buried and pulsing, Dabi snags an arm around Katsuki's waist and walks them to the futon. Katsuki goes down first and is crushed by Dabi's weight, his cock slipping free. Cum drips over Katsuki's balls and his hips move on their own to rub his neglected dick on the rough uncovered futon fabric, searching for more stimulation.

Katsuki is just about to bitch about Dabi's quick shot when three fingers unceremoniously slam into his cum wet hole. The spilled out cum is collected and pushed back inside, Katsuki's ribcage tightening and his heart racing at the lewd display.

"Oh, sorry - I can't help myself, you see. This hole is too cute not to play with a little. Can you handle it?" Dabi's fingers curl and spread, the cum shoved in getting pushed back out in a mess by the lightly thrusting fingers. 

Katsuki hisses and glares at Dabi. He tightens his core, his hole in a desperate attempt to keep those fingers in. "Playing? Get serious. Isn't this your big brained idea to get revenge on Todoroki? Or is your limp dick too weak?"

Dabi squeezes in a fourth finger, Katsuki's eyes fluttering shut. "I'll only take a minute or two to get hard again, especially with a lovely creature like you in Shouto's bed. Here baby, tell me what you like - want me to spank your ass red? Choke you, hold you down?"

Katsuki is pinned by the fingers. Dabi a heavy load on him, driving him to the brink. "Don't you dare choke me," Katsuki grunts and fucks his hips back as best as he can. "But go ahead - make it hurt. Bite me, bruise me. Try your best to fuck me so deeply I walk away from this with the imprint of your cock in my guts."

Dabi curses in a frenzy. There is a shrill whistling noise cutting through the air and Katsuki has barely a moment to brace before a hand smacks hard on the meat of Katsuki's ass. Dabi keeps his hand on the smarting hurt, his nails digging in and groping his rapidly reddening ass. "Fuck, I'm going to ruin you. I hope you aren't planning on sitting tomorrow."

"Ha, you fucker - one little spank ain't gonna do shit." Katsuki taunts. A dark promise lights up Dabi's face and they end up smiling at each other, a little cheeky and a lot in excited anticipation.

Dabi lets up, sitting cross legged. His wet fingers smear cum on Katsuki's skin - strokes of kanji, too soft for Katsuki to follow. And then Dabi hauls Katsuki to his lap, head down and ass up, toes stretched out and falling off the edge of the futon to press on the cold, hard ground. 

Hot palms massage the back of Katsuki's thighs, thumbs teasing the thin skin and positioning Katsuki's legs open. Dabi touches Katsuki's cock and balls for the first time to pull them between his legs, a sharp nail dangerously running on the seam of his sack and lightly jiggle the weight of him. His balls draw up tight to his body searching for protection but it is too late. What in reality is only a flick of Dabi's finger feels like a full-on flogging to his sensitive balls. The hit is so unexpected that Katsuki yelps in surprise, his leg kicking out in reaction to the bizarre pain-pleasure mix.

Dabi laughs and laughs and laughs. "Louder, baby! Call for Shouto to come rescue your poor balls, empty asshole and soon-to-be cherry cheeks."

Soon-to-be means now - three harsh slaps to Katsuki's ass faster than he can recover from the hit to his balls. It does hurt - Dabi's hands are not a normal temperature, the heat radiating out and expanding the area of impact. Each spank hits Katsuki at his core, his cock aching at the strained position, his exposed asshole instinctively clenching on the smack of pain.

Three more spankings and Katsuki breaks on a sob. The seventh leaves his mouth wet and tears clumping on his eyelashes. Oh, oh - the bruises are forming, his ass aching. The pain hurts so good, pushing him to the limit and back victorious. Katsuki could lounge on Dabi's thighs and take this sort of treatment like a king, for hours and hours. Katsuki moans out encouragement, asking for more without words.

Dabi listens. But Katsuki forgets - he forgets who he allowed into his bed, into Shouto's bed. 

A sadistic monster by nature, Dabi aims a direct hit to Katsuki's pink asshole.

It's an unexpected fresh hurt, a hurt on a place that is sore from being fucked, that is alive from Dabi's touches and now - now Katsuki chokes on his own spit, the tears escaping and running rivers on Katsuki's face.

The keening hurt is too much to contain and Katsuki whines, his legs trying to close instinctively. "Fuck! Fuck, ow - shit, ow, why - why?"

Dabi hums and wet lips kiss the pain away, Dabi's tongue licking the nape of Katsuki's neck, his nose nuzzling Katsuki's hair. "Too much? I bet if I do it again, it'll feel even better."

"Do it," Katsuki blinks through the tears, endorphins quickly working. "Bastard."

His hole is hit again - harder. The shock is less, the pleasure white-hot and that leaves Katsuki reeling. The pain blossoms and his hole throbs, twitching and empty - the emptiness worse of an ache than the heat of Dabi's mean palm. 

Katsuki isn't aware of the sound he makes, he can barely hear Dabi's crooning praise over the sounds of his blood rushing through his head.

"Hey, hey - your tears are really doing it for me, baby. I'm hard for you, ready for you to take what you need." 

Limbs shaking like a newborn lamb, Katsuki sits up in a daze. His heels hit his asscheeks and Katsuki hisses, his cock so hard one touch is all he needs to cum. "You can't fuck me like this," Katsuki's words slur. "Gotta be gentle - gentle or I'll cum too fast."

"Wanna last, baby?" Dabi presses a chaste kiss to Katsuki's tear stained cheek and leans down, lies back on the futon. His cock is bigger to look at like this, jutting up - a slight curve to the left struggling under the massive girth and length. Dabi grabs the base and holds himself straight like an offering. "You took your spanking so well, why don't you go ahead and control the pace. See - a seat just for you."

Katsuki climbs on top, facing Dabi for a second before he changes his mind and turns to look at his feet instead. The gasp Dabi lets out is worth the lesser view of Dabi's knees and Shouto's depressing room. Katsuki rolls his shoulders, his spine perfectly straight. Like this Dabi can see his literal handy work, the thick purpling bruising on Katsuki's ass. And he has the unfiltered view to  watch his cock disappear. Pleasures of payback, Katsuki wears his crown of pride for how his body must look, how provoking and provocative and slutty Katsuki can be.

Together they guide Dabi's cock. Feeling the give of his rim like this as he sits on Dabi's fat dick is erotic. Katsuki is powerful, in control of the depth, the drag in and out. He teases Dabi by sitting on an inch of cock, his hole purposefully tight. Katsuki slowly, torturously slowly rocks. Down, down, down Katsuki goes and then just when he is about to take all of Dabi, he squeezes on the way up.

Dabi's bitten off swears are a prize.

The pace accelerates. Fire and gasoline mixing as Katsuki rides Dabi. Up and down, clenching to feel every inch in his gut. Dabi starts fucking into him in fast brutal strokes, his body roaring into a sitting position and his teeth in Katsuki's shoulders. It isn't pretty or loving or nice - two bodies slamming, slapping in an obscene physical partnership.

Sex, pure and nasty. The futon will smell of their fucking for months.

Katsuki grinds down on cock. Dabi fucks up into his hole. Primal desire takes over and they race with abandonment to the bright edge of orgasm. Dabi's strong arms wrap around him and help him bounce when his thighs quiver, Katsuki's strength waning as the pleasure peaks.

"There - there! Oh oh fuck!" Katsuki shatters, his abused prostate twitching as Dabi's cock pushes the orgasm out of Katsuki on a single, bone rattling thrust. The second load of the night distends Katsuki's gut, Dabi moaning in his ears and rocking where they are connected in a smooth, all encompassing roll of his hips.

"Mhm, baby - " Dabi shivers, his cum slightly too hot for comfort. "Fuck, so perfect on my cock."

Katsuki rests his head on Dabi's sweaty chest, catching his breath as much as possible. His muscles are loose, relaxation and relief tenfold. Dabi slips out of him but doesn't break the hold on Katsuki, instead rolling them properly on the futon, nestled like two spoons.

"Best revenge I've taken yet," Dabi's lips press in Katsuki's hair, cueing a bubble of indescribable laughter from Katsuki's still affected chest.

"I bet. Villain plots are for losers. Wanna win, you gotta be on the heroes side."

"Sure kid. Let's see how that works out for you long term." Dabi grins. "Hey, I want a picture of your ass for fond remembrances later."

"Fuck you, no way am I letting you walk out of here with proof we fucked!"

"I am great at keeping identities a secret," Dabi says. "I'll let this be something that you can reveal later, okay? My lips are sealed. This for my private spank bank."

"Urgh. Fine."

Dabi hums happily and pushes Katsuki on to his stomach. The futon shifts as Dabi gets up. "So kind, so generous."

Katsuki groans but lifts his disgusting shirt all the way up and over his head, hiding his hair and hopefully his identity in the sweaty dark fabric. "Take one on my phone too. Wanna see the damage." 

Dabi obliges, the shutter sounds loud and intrusive. His fingers tug on Katsuki's rim. Katsuki bends a knee, knowing it will help the spread of his cheeks show through and highlight his curves.

Dabi takes another picture of Katsuki's hole and sighs. "I can't believe little Shouto wasted this piece of ass. That scrawny green-headed weirdo has nothing on you, baby."

Katsuki peers at Dabi suspiciously. "What?"

"I mean it - Shouto really does deserve the death headed his way for cheating on you."

"Huh?" Katsuki sits up in alarm. "I'm not dating that candycane bastard!"

"Good for you for dumping him." Dabi lights up a cigarette, careless about smoking inside and the disgusted twist of Katsuki's face.

"No, I've never dated him." 

Dabi squints. "I came in your ass twice, don't be shy. I know Shouto's checked out your tits - that was caught on camera."

"Urgh, no! That idiot is a fucking space cadet. Always staring at nothing - he was not looking at my, my chest."

"Huh. You said he betrayed you."

Katsuki scoffs, rubbing at the angry blush on his cheeks. "Yeah. Fucker and Deku are working on... something that I ain't telling you about! And they ditched me - when it was my turn to go all out on them! I was going to beat their asses into the ground but they chickened out."

"... that made you angry enough to cry on a street corner and accept revenge sex with me?"

Katsuki flicks up his middle finger. "Fuck off - you know how easy I cry, hypocrite. And my training is serious business."

Dabi shakes his head and sighs wistfully. "Wow. The world is doomed."

Katsuki blasts Dabi in the face. "Fuck off. Grab my pants, I wanna get out of here before Endeavor finds us."

"Spoil sport."

Katsuki turns off the part of his brain that tries to put together that connection, not wanting anymore to do with Todoroki family drama.

Dabi slips out the window, Katsuki at his heels. Shouto's boring room is mostly intact - minus one shirt Katsuki had to borrow. And the burn in the door. And the stain covered futon. 

.... Well, next home visit isn't for a few weeks. Maybe the maid service the big rich people tend to employ will quietly deal with it before then. If not - there is no guarantee that oblivious Shouto notices.

Katsuki is still planning to kick Shouto's ass next time he sees him. Deku is a dead man walking - no more or less than usual, sadly enough.

But Dabi eased most of his anger - leaving Katsuki happy, saited and well fucked.

Dabi doesn't wave goodbye and Katsuki doesn't expect him to. He walks towards the sketchy side of town and Katsuki walks to UA. The pictures and bruises on Katsuki's skin is proof of their meeting. Maybe it is exactly the way Katsuki needs, more than any quirk training session.