"Izuku!" {Izuku/male!classmate one-shots}

Katsuki/Izuku

"You're strange, Kacchan."

Or:

Izuku is an angel and Katsuki is a demon and they have that forbidden love typa shit.

[Katsuki is hhhhh h o rny y]
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The boy before him gasps, eyes wide and shiny, pouty pink lips curved into a sweet 'o'. "My, your horns are quite large, Kacchan," the angel says, making Katsuki bristle. "They're red as well! Oh, how curious!"

"Yeah, well," the demon crudely grabs the golden ram horns nestled on top of curly green hair, coiled tight and obscuring the angel's ears. "These are pretty fuckin' huge too."

Izuku, despite the rude response, giggles, laugh not so far from the light charms of small bells on the wind, a delightful tinkling sound that Katsuki finds quite unappealing. Everything about the boy was, really, from the slim of his waist to his plush thighs, to his pretty pink nipples barely obscured by a transparent gold-lined cloth that was tossed around his shoulders.

Katsuki huffs, his clawed hand relenting from Izuku's ram horns, settling on the grass beneath him. He was bored out of his mind, you see, roaming around earth forever as punishment- before bumping into some prissy little angel who was doing some exploring, 'to see His creations', as Deku had worded, a pleased look on his face.

The angel had pestered him continuously until Katsuki decided that hey- there's no fucking chance of getting rid of the nerd any time soon- so he makes the choice of settling on the flourishing mountains as Izuku talked his ear off.

.. You know what? He might as well admit that, to him, Izuku was a beaut. His appearance was darling, lovely, youthful, with a touch of what seemed to be freckles littering his face like stars. Katsuki was surprised that the angel had stayed, even after feeling the waves of lust coming from Katsuki, either extremely oblivious and stupid, or he chose to ignore it because he wasn't a fucking pussy unlike other angels the blond had run into.

Izuku was bare, legs touching Katsuki's, leaning into his space with minimal concern for decency- apparently unbothered that Katsuki had been transfixed on his naked lower half. His eyes roamed over the ass shaped like a peach, to the cute pink cock between his legs, like a tempting, juicy apple hanging from a tree branch that had a sign nailed to it that says 'DO NOT TOUCH'.

.. Well. He wouldn't be a fuckin' demon if he listened to the rules anyway.

The angel was hugging his arm, chattering on and on- right before Katsuki's claws retracted and he smooths a palm over Deku's thigh.

"Kacchan?" The angel's voice trails off into a whimper when Katsuki cups his cock, biting back a groan when Izuku recoils but stays in place, red quickly creeping up to his cheeks, not quite pulling away from his touches. "I- I'm not-"

"Look, if you don't smack the shit outta me right now," Katsuki's breath was hot against the shell of his ear. "I'm gonna have my dick buried hilt-deep in your fuckin' ass, Deku."

That makes the angel's face bloom into the color of roses, shyly fluttering his eyelashes, gnawing on his lower lip nervously when the demon's other palm skims over his pert nipples, down to his waist- and fuck, his fingers are almost touching when he wraps both hands around Izuku's cinched waist.

Katsuki smirks at the lack of protests, maneuvering the angel so he was sprawled on top of the bed of flowers, eyes wincing when sunlight hits them and Izuku turns his head, meek as a lamb.

"What, god's little helper too spineless to ward off this evil good for nothing demon?" Katsuki can't help but mock him- he wanted the angel to cry on his cock after all- "Or maybe," he growls, lips pulled into a hungry smile, "you're eager to have me inside you? Mm? That what you want? Want me to cum inside, angel?"