a lesson in impropriety | #bkdk #ktdk #nsfw 🔞| spideypool au🕸️ ——...
caro ✰ new a casual affair update!@katsukidaydream
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Aug 13, 2026
~9 min read
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a lesson in impropriety | #bkdk #ktdk #nsfw 🔞| spideypool au🕸️
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cw: rough/semi-public sex (in an alleyway); mentions of blood, anal sex, blowjob/face fucking, nasty pwp
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“What the /fuck/ was that, Kacchan?”
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cw: rough/semi-public sex (in an alleyway); mentions of blood, anal sex, blowjob/face fucking, nasty pwp
——
“What the /fuck/ was that, Kacchan?”
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Deku shoves Katsuki against the wall, jabbing his index finger into his chest.
The blonde cocks a brow beneath his mask. “Tch. I saved your fuckin’ ass in there, dumbfuck.” He rolls the orange leather up just enough for him to spit over the nerd’s shoulder.
The blonde cocks a brow beneath his mask. “Tch. I saved your fuckin’ ass in there, dumbfuck.” He rolls the orange leather up just enough for him to spit over the nerd’s shoulder.
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Then the mercenary butts the handle of his katana against Deku’s chin hard enough for the little fucker to grunt and lose his footing.
Katsuki leans down, licking his teeth. “Who the fuck do you think you are anyway, talking to me like that?”
Katsuki leans down, licking his teeth. “Who the fuck do you think you are anyway, talking to me like that?”
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Even though he can’t see his face, the blonde knows Deku is glaring at him. The nerd pushes him back against the wall, arm pressed up on his throat. He grunts, smirking because let’s be honest here — he knows exactly what the little spider is up to.
And he fuckin’ /loves it/.
And he fuckin’ /loves it/.
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“Someone who’s sick and tired of your /bullshit/, that’s who. Every single time, you have to do shit your way, and end up fucking something up, Kacchan! /I had a plan/, for fuck’s sake!” Deku digs into his throat, the pressure making Katsuki’s eyes roll to the back of his head.
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But let’s not get ahead of ourselves, shall we?
“When are you gonna realize that between the two of us, I know better than you, sweetheart?” He tilts his head, smirking when he hears the nerd’s sharp intake of breath.
“When are you gonna realize that between the two of us, I know better than you, sweetheart?” He tilts his head, smirking when he hears the nerd’s sharp intake of breath.
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“Besides,” Katsuki licks his lips. “You don’t have to put on a show to get what you want, baby. All you gotta do is ask.”
And just like that, the blonde has Deku pinned against the wall, the back of his teal suit being torn right down the middle by deft, gloved fingers.
And just like that, the blonde has Deku pinned against the wall, the back of his teal suit being torn right down the middle by deft, gloved fingers.
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The nerd grunts, feigning struggle against Katsuki’s ministrations as the mercenary’s katana slices through the front of his suit, leaving the lightest of scratches on his chest.
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Then the blonde’s hand is ripping the skin tight material off of him, pearly whites digging into his bottom lip as he watches Deku squirm beneath his gaze.
“/Asshole/. This was brand new, you motherfu—”
“/Asshole/. This was brand new, you motherfu—”
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“Shut…” Katsuki flips his katana up and presses the cold black steel against the nerd’s throat, the blunt edge of the blade digging into the sliver of skin showing. “/the fuck up/.”
“/Make me/.”
“/Make me/.”
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Now, who can say no to that?
Katsuki pulls off the last of the shredded suit covering Deku’s already hard cock, smiling as it slaps against his abdomen.
“Hah, well hello there,” The blonde coos, biting down on his leather glove and tugging it off.
Katsuki pulls off the last of the shredded suit covering Deku’s already hard cock, smiling as it slaps against his abdomen.
“Hah, well hello there,” The blonde coos, biting down on his leather glove and tugging it off.
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His hand grips the base of the nerd’s curved shaft, squeezing tightly as he glides his palm up, relishing in the hero’s loud hiss when his thumb presses down and smears beads of pre across the swollen crown head.
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“This what you wanted, fuckin’ brat?” Katsuki undoes the front of his suit, letting his utility belt fall to his feet as he draws out his cock, pumping into his fist as he digs cold steel into the nerd’s throat. When Deku moans, he smiles.
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His katana clatters to the ground, long forgotten as his gloved hand snakes up the hero’s leg, fingers digging into the supple flesh of Deku’s ass, spreading one cheek to the side while he licks his thumb clean.
“I’m gonna wreck your fuckin’ shit, Deku.”
“I’m gonna wreck your fuckin’ shit, Deku.”
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He leans in close, letting his mouth brush over the fucker’s mask, right where his ear is. “And you’ll regret talking back to me, fuckin’ bitch.”
The nerd’s breathy exhale makes the blonde smirk as he straightens, hollows out his cheeks, and spits all over the tip of his shaft.
The nerd’s breathy exhale makes the blonde smirk as he straightens, hollows out his cheeks, and spits all over the tip of his shaft.
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Hiking Deku’s leg up over his hip, bending it as far as it’ll go before breaking, Katsuki nudges his cockhead along the brat’s taint until it catches on his rim.
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The the blonde breaches the tight entrance, growling deep in his throat as he sheathes himself to the hilt, the delicious stretch of Deku’s walls around his length driving him /fucking insane/.
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Katsuki sets a brutal pace, groping the nerd’s fat ass with one hand, the other shoving his face against the brick wall. All the while, the bitch is fucking /keening/.
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Every thrust pushes the nerd higher up the rough concrete, Katsuki’s cock burying itself deeper and deeper, twitching with every drag against soft, velvet walls.
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He’s pounding into the fucker so goddamn /hard/, the blonde is sure Deku’s back will be bloodied and bruised by the time he’s done with him.
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/Good/, Katsuki thinks as he grunts, teeth digging into the tangy skin of the nerd’s shoulder. /Let him get what he wants. Serves him right/.
This happens at /least/ once a week, at this point.
This happens at /least/ once a week, at this point.
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Something about the mercenary’s anger lights a fire under Deku’s ass and gets him all fuckin’ hot and bothered.
And Katsuki ain’t complaining.
And Katsuki ain’t complaining.
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He’ll take any excuse he can get his hands on to rail the fucking daylights out of the brat, hearing him choke and gurgle on his spit like the pathetic bitch he is with every snap of his hips, for him, and him /alone/.
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But he wishes his little spider would switch it up every now and then. He’s so fucking obvious and —
“/Shit/,” The blonde hisses between clenched teeth as he feels Deku clamp down on his cock, his sweet little moans and whines telling Katsuki that he’s on the verge of orgasm.
“/Shit/,” The blonde hisses between clenched teeth as he feels Deku clamp down on his cock, his sweet little moans and whines telling Katsuki that he’s on the verge of orgasm.
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“Fuck that,” He seethes, wrapping a hand around the nerd’s throat and squeezing as he pulls out.
“/Ka—aa—cchaan/,” Deku chokes out, hands scratching at his suit as his grasp tightens, adding just a bit more pressure.
“/Ka—aa—cchaan/,” Deku chokes out, hands scratching at his suit as his grasp tightens, adding just a bit more pressure.
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Then he pushes the brat down onto the cold, dirty alleyway floor, letting go of his throat.
“/Fuck/,” The hero heaves, voice muffled by his mask.
Katsuki grabs the edge of the stupid thing and rucks it up until he can see those pretty pink lips he loves so much.
“/Fuck/,” The hero heaves, voice muffled by his mask.
Katsuki grabs the edge of the stupid thing and rucks it up until he can see those pretty pink lips he loves so much.
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“Perfect,” The blonde whispers, leaning down and parting Deku’s mouth open with his thumb. Hooking the digit in the corner, he widens his opening and spits.
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Then he’s pushing his purpling cockhead in, cradling the back of the nerd’s head as he pushes him down on his shaft, basking in the way Deku gags around him as the tip hits the back of his throat.
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Setting a rough pace, Katsuki flattens his palm against the wall as he fucks Deku’s face, the lewd slap of his balls against the nerd’s spit-slick jaw and cheek and the eager bitch’s keens their soundtrack.
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The blonde snaps his hips harder every time the nerd gurgles and moans around his cock, his gloved hands digging into the exposed skin of his thighs, holding onto him for leverage.
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Even though he can’t see Deku’s face, the way he greedily swallows Katsuki whole every time he thrusts tells him just how much the bitch is loving every second of it.
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Spit is flying everywhere as Katsuki fucks Deku’s face, mixing with the streams of tears on his cheeks as he cries, jerking his own hips in search of any friction for his neglected cock — the poor thing slaps against his stomach as he bounces pitifully.
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Katsuki lets himself bask in the feeling of Deku’s hot, wet mouth for just a moment, watching his little spider slurp him down with fervor, soft gurgles and moans seeping out the edges of those wet, frothy lips.
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“What a fuckin’ cockslut,” The blonde hisses, the jagged edges of the brickwork digging into the palm of his hand as he tightens his grip.
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Deku babbles a reply, words lost in the mix of his loud gagging around Katsuki’s shaft as he bucks his hips, burying himself deep in the wet cavern that he’s flawlessly molded to the shape of his fat cock.
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A disjointed grunt followed by a painful snort tells the blonde his little spider has finally come all over himself; he can tell by the way the bitch is inhaling, his mask blocking his nostrils with every half-assed attempt at a deep breath.
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Drawing blood as his canines sink into his bottom lip, Katsuki snaps his hips even harder than before, reducing Deku to a blubbering, heaving mess as his cock hits the back of his throat, the tip pushing down so far that it makes the fucker choke.
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The little spider claws at the blonde’s thighs, desperate for relief as his oxygen starts to deplete, broken gasps and wheezes finally pushing Katsuki over the edge.
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He yanks the teal mask off and knots gnarled fingers in sweat-damp verdant curls, tugging hard on the strands as he finally locks eyes with Deku — dazed, out-of-focus emerald irises looking up at him like he hung the moon and the stars.
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“/Fuuck/!” Katsuki cums with a deep-seated snarl, slamming Deku’s head down on his cock one last time as thick ropes of white shoot down the slut’s throat, oozing out the edges of his mouth.
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He pulls the nerd off of him, slumping against the wall as his shaft twitches, a light sheen of frothy spit and cum coating it from tip to base.
Deku’s head rests on the blonde’s thigh as he gasps in deep lungfuls of air, his hand wrapped around his ankle for support.
Deku’s head rests on the blonde’s thigh as he gasps in deep lungfuls of air, his hand wrapped around his ankle for support.
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“Goddamnit,” Katsuki mutters under his breath as he takes in the sight of Deku’s backside; deep, bloody scratches litter his freckled skin. “I’m gonna have to patch you up when we get home, baby.”
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A muted whimper is all Deku can manage, still incapable of forming words with his fucked-out throat. The blonde smiles softly, clicking his tongue as he tucks himself into his suit.
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Then he scoops Deku into his arms, nosing along his forehead before leaving a chaste kiss on his swollen lips.
“Happy now, you little brat?”
His boyfriend nods, a weak smile spreading across his face as he nuzzles his face into the blonde’s chest.
“Happy now, you little brat?”
His boyfriend nods, a weak smile spreading across his face as he nuzzles his face into the blonde’s chest.
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Katsuki barks out a laugh as he presses down on Deku’s web shooter, silky webs landing perfectly on the ledge of the roof above them.
“Let’s go home, then.”
“Let’s go home, then.”
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— end!
everyone say thank u tired for feeding my bkdk spideypool brain rot the past few days🧡💚 ko-fi.com/sanjariti
everyone say thank u tired for feeding my bkdk spideypool brain rot the past few days🧡💚 ko-fi.com/sanjariti
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caro ✰ new a casual affair update!@katsukidaydream
a lesson in impropriety | #bkdk #ktdk #nsfw 🔞| spideypool au🕸️
——
cw: rough/semi-public sex (in an alleyway); mentions of blood, anal sex, blowjob/face fucking, nasty pwp
——
“What the /fuck/ was that, Kacchan?”
——
cw: rough/semi-public sex (in an alleyway); mentions of blood, anal sex, blowjob/face fucking, nasty pwp
——
“What the /fuck/ was that, Kacchan?”
