KINKTOBER DAY 21: Deepthroating (comm from @/kacchnyan)
Izuku's a size queen with a large collection of sex toys hidden in his drawers - the bigger the better. He's currently practicing fitting all of his newest toy, in secret of course. But he doesn't expect anyone to find+

his stash, and he /especially/ doesn't expect it to be /Kacchan/, of all people. Izuku doesn't allow most of his classmates in his room, but Kacchan's one of the few exceptions. It's when they're alone in each other's rooms that they can really be themselves, and talk openly +

about things like the secret of OFA. They've had a budding friendship since towards the end of first year, and in their third year, there's no doubt that they're quite close. Izuku enjoys Kacchan's company, whether it's studying or playing video games or even just watching +

something in comfortable silence. Plus... the flirting isn't too bad, either. It happens now and then, teasing and friendly, a testament to the strength of their friendship. Not to say that Izuku only sees Kacchan as a friend. Definitely not, considering the way he fantasies +

about Kacchan cuddling him to sleep or kissing him or watching him ride a dildo or just /fucking/ him himself. He keeps it to himself mostly, and the only obvious indicator of the way he feels is the way he blushes when he flirts back. Everything else, the casual touches, the +

amount of time they spend together, etc., is reciprocated by Kacchan, so it's nothing out of the ordinary. But there's only a confident smirk on Kacchan's face when he slaps his ass or tells him he looks delicious, followed by joking laughter.
It happens when they're studying. +

Izuku chews the edge of his pencil, trying to work through the equation. Katsuki is lounging on the bed, already done as he aimlessly flips through the textbook. He sneezes and reaches for a tissue as Izuku mutters a "bless you", only to find the tissue box empty.
"Oi, nerd, do +

you have another box of tissues?"
"Yeah, second drawer," Izuku responds absentmindedly, before realising what he's just said. He whirls around in his chair and yells: "No, wait a second!" but it's too late: Kacchan is staring at the various sex toys nestled in the second drawer.+

There's a silence that stretches on for what seems like a lifetime, before Kacchan laughs and /takes the biggest dildo/, twirling it in his hands.
"I knew you were a bottom, but I didn't know you liked it /that/ much," Kacchan taunts. Izuku's face is tomato red, eyes fixed on +

Kacchan's hands running along the long, girthy dildo. "Can you actually take this, Deku?"
Izuku gulps and bites his lip, shaking his head. Kacchan doesn't say anything, and Izuku realises he's waiting for him to elaborate.
"W-Well!" Izuku defends, "I only got it like, hmm, four +

days ago? I can, uh, d-d-deepthroat most of it, but I can't quite fit all of it, um, properly."
"Shame," Kacchan hums, placing it against his leg and pinching his fingers above the gap over the tip of the dildo. "You'd only fucking fit three quarters."
Three quarters? What is he+

talking about-
...Oh god. He's comparing his dick to the dildo. And his dick is /bigger/. Izuku squeezes his thighs together just thinking about it. He remembers last night, feeling so proud of himself for being able to deepthroat almost all the way to the base. But if it was +

Kacchan's dick, it would be...
Oh, god, oh, god, Izuku's horny now. This is not a good time! He's always had a vague idea of the size of Kacchan's dick, from gossip and brief glances (he doesn't trust himself to look /properly/ without popping a boner), but as much as Kacchan +

perfect, he's not ready for one of his best friends to be his walking wet dream.
"W-Well if I p-practice," Izuku stutters out, meaning /if I practice alone in my room on the dildo you're currently holding I'll be able to take more/, but it comes out entirely wrong. Kacchan's +

smirk is alluring, /dangerous/, as he purrs: "Oh yeah? I could /definitely/ help you practice."
He sets the dildo down and spreads his legs leisurely, eyes not leaving Izuku's. Izuku wants to bury under his blanket and never come out, except that Kacchan is still on his bed. +

"Wh-What do you mean?" Izuku laughs nervously, as if it isn't obvious. Kacchan tuts lightly.
"The hell do you think I mean? Deepthroat my dick, Deku. If you want to, that is. Do you?"
And before Izuku can stop to think what they're /doing/, he frantically blurts out: "I do!" +

Kacchan flashes his teeth as his smirk deepens, and Izuku's both very turned on and terrified.
"C'mere then, Deku," he says. Izuku obeys immediately, rising from his seat and shuffling across the room until he's between Kacchan's legs, the attractive blond raising an eyebrow up +

at him. "Don't fucking stand there, get on your /knees/."
And Izuku's never dropped down so quickly, eagerly settling in front of Kacchan's bulge.
"Like this?" Izuku whispers, and Kacchan nods.
"Good boy," he praises, and /oh/ if that doesn't go straight to his dick. "Now take +

it out, Deku. Show me what you can do."
"Yes, Kacchan," Izuku breathes, pulling Kacchan's sweatpants off and dragging his boxers down a little to expose Kacchan's half-hard length. It's not even fully erect, but it's /huge/. Izuku stares at it, starstruck, before an impatient +

sound from Kacchan reminds him of what he's meant to be doing. Carefully, he wraps around the base as best as he can, marvelling at the fact that his fingers don't even /touch/, and begins to stroke up and down, jerking Kacchan to full hardness. Kacchan threads his hands in +

Izuku's hair, playing with the soft curls, and Izuku leans into his touch.
"Mm, get on with it, baby, I want those sweet lips wrapped around my cock," Kacchan says huskily, and Izuku blinks up at him, a wave of arousal running through his body.
"Whatever you want, Kacchan," he +

murmurs, leaning forwards to flick at the tip of Kacchan's dick with his tongue. Kacchan sighs in pleasure and Izuku does it again, kitten licking at the tip and pushing the foreskin back to kiss at it. His actions get bolder as he licks a stripe from his tip to his base and +

back again. He keeps doing it as Kacchan's hand tightens in his hair. Even from licking the side of the length, one hand steadying Kacchan's cock, he can tell that it's going to be a challenge fitting the whole huge thing in his mouth. But that's the /attraction/ of it, and +

Izuku spreads his own legs to palm at his cock as he stretches his lips over the tip of Kacchan's girthy dick, swirling it around in his mouth. Slowly, he starts to slide forward, plush lips wrapped around his cock as he tries to take more and more of it. He almost chokes when +

it hits the back of his throat, but pushes down his gag reflex as he swallows down more. He's almost three quarters down, just like Kacchan said, when he slows down. His mouth is so /full/, jaw slack and lips stretched as tears fill the edges of his eyes. Kacchan's thicker and +

(tweet limit doesn't want Izuku to choke on Katsuki's dick but I do so fuck you tweet limit)

longer than anything he's ever even attempted. He thought that his newest dildo was a big step up, but it's nothing compared to the sheer size of Kacchan's cock. He really is blessed in every department, and Izuku can't stop thinking about how /hot/ that is. His hand reaches +

under his trousers as he jerks himself off, moaning around Kacchan's mouth. Kacchan frowns down at him, tugging him up by the hair so that he's forced to meet Kacchan's eyes.
"Really, Deku? That's all you can take? Pathetic." His foot moves to press down on Izuku's dick, and +

Izuku whines around Kacchan's dick in pain and pleasure. "Get your hand off your dick, slut, you don't get to come until I do. You've got one more chance before I do it myself, Deku, make the best of it. Plus Ultra and all that shit."
In any other situation, Izuku might have +

laughed, but with Kacchan's heel digging into his crotch, his hand pulling at his hair, and most importantly, his hot, heavy cock on Izuku's tongue, all Izuku can do is whimper and open his mouth wider, trying his hardest to take /more/. He drives himself to take Kacchan's thick+

length deeper, tears spilling over his eyes and down his cheeks. He can do this, he /can/, he can show Kacchan that he's good enough to be sucking his dick. He hollows his mouth and sucks as he slides further forward, bobbing back and forth. He's rewarded by soft pants as Izuku +

moves a hand to play with his balls. Kacchan's face is flushed and beautiful when Izuku glances up at him, smiling the best he can before he moves forward-
-and gags, his throat refusing to take any more. No, no no, he's only got two or three inches left, he can't stop here! But+

no matter how hard he pushes himself, /he can't do it/. Kacchan's lip curls as he looks down at him, and Izuku whines in apology. Kacchan grinds his foot into Izuku's dick, moving forward to /spit/ on his cheeks. Fresh tears roll down his cheeks, mingling with the spit as Izuku +

is utterly humiliated. But Kacchan knows he likes this, knows that Izuku /wants/ to be degraded. And if he didn't, he does by the way Izuku's dick twitches helplessly.
"Stupid slut," Kacchan sneers. "Can't even fit my dick in your mouth, let alone your pathetic hole. You had +

your warning, Deku. If you can't do what I ask, then I'll have to use you like a cocksleeve."
And even though Izuku knows what's coming next, he still chokes, moaning loudly as Kacchan forces his dick entirely down his throat. He stuffs Izuku's mouth so full that Izuku can only +

relax his jaw the best he can and /take/ it as Kacchan starts to thrust in and out. It's slow at first, as laid-back as Kacchan always is when he's relaxing on Izuku's bed. He grins down at Izuku as he starts to speed up, snapping his hips back and forth. His smile morphs into +

an open-mouthed pant as he fucks Izuku's mouth, using him like a cocksleeve. His dicks hits the base of his throat and slides /past/ over and over and over again until Izuku's sobbing and rutting against Kacchan's foot. Kacchan rubs circles with his heel, giving Izuku friction +

to buck into as he slams back into the wet heat of Izuku's pretty mouth.
"You look so fucking /gorgeous/ choking on my cock," Kacchan growls, eyes full of fire as he yanks Izuku's hair back again. "Mm, fuck, those tears, the way your plump lips stretch over me... You were made +

to be fucked like this, you just needed me to show you /how/. Fuck, my perfect little slut... All fucking mine, such a pretty whore for me, /fuck/. I'm gonna cum in your mouth and all over your fucking freckles, gonna pump you full like the cum dumpster you are. You want that, +

don't you, baby?"
Izuku moans loudly and nods, eyes rolling back as Kacchan speeds up. He grinds desperately against Kacchan's foot, humping leg like an absolute /whore/ as they both chase their orgasms. Kacchan's gonna cum, Kacchan's gonna cum all over him, he has to /help/, +

he has to be an obedient slut and make him feel /good/. He sucks at Kacchan's cock as hard as he can, flicking his tongue under Kacchan's heavy length as the blond thrusts in and out sloppily, groaning.
"Fuck, fuck, baby, baby, I'm gonna-oh /fuck/!" Kacchan cries out, rolling +

his hips uncontrollably as he cums right down Izuku's awaiting throat. He drags Izuku's mouth off as he does, using a spare hand to pump himself through the rest of his orgasm as cum splatters all over Izuku's cheeks and nose, some hitting his lips too. And Izuku can't /help/ +

it; he orgasms too, cumming filthily in his pants as his broken, fucked out voice calls out Kacchan's name. He slumps against Kacchan's leg when he's done, licking his lips as he stares up at the blond.
"Mm, that was delicious, Kacchan," Izuku croons, nuzzling against his thigh.+

"The hell do you mean /was/?" Kacchan asks. "You think I'm gonna stop before I've wrecked your fat ass? Think again, Deku. On my lap, /now/."
And as Izuku clambers into his lap, Kacchan's dick slotting between his thick cheeks, he just knows won't need his dildos anymore.
END.

I JUST about got that fat ass mention in there, but this thread was about Katsuki's ginormous cock anyway, so we're all good! Tysm for the donation, @/kacchnyan If you enjoyed this, please consider supporting me on Ko-Fi! Every little helps http://ko-fi.com/lemonaestheticc 

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