cw: slight dubcon / mild abuse

ms!bkg used to bully ms!deku in the boys bathroom to suck his dick and eat his ass.

he wouldn't be satisfied until he'd cum down deku's throat and/or had his hole wet and slick from deku's saliva.

at first it was just the sucking dick part but he'd been curious for more ever since deku's hand accidentally glided around his hole while his throat milked him dry.

he wanted to feel more. to know how deku's hot wet tongue would feel against his rim.

one day he throws him against the bathroom stall. deku falls to his knees, right where katsuki wants him.

he licks his lips and unbuckles his pants. deku still gets all nervous and wide eyed. his cute doe eyes blink away tears and the sight goes straight to his cock.

"we are gonna do something a little different today dekuuu" he says wickedly and faces away from deku, only to turn slightly and grab him by his hair, bending over slightly he presses deku's face against his now bare plump ass.

"eat my ass, shitnerd."

unexperienced izuku starts with kitten licks at first but it's enough to make the blond mewl. which surprisingly arouses izuku all too much.

so much so, that he starts to lick with vigor, swiping a flat wet tongue over the puckered hole that flutters against his touch.

kacchan actually sounds wrecked as Izuku continues his ministrations, the blond has to bite his lip when he feels the nerd's tongue breech his entrance. his hands spread his cheeks open while he tongue fucks him until katsuki cums in a loud moan,

his untouched half-mast cock leaking.

he can still feel the after shocks of his orgasm as he pants against the stall wall trying to compose himself. he's never had an orgasm like this.

/holy fuck that felt so fucking good/

he needs more.

/more! more! more!/

deku stands up abruptly, leaving the scene with a shocked look on his face.

they see each other again the next day. the blond is dragging deku by his uniform collar towards the bathroom. katsuki can't believe that deku who normally complied actually tried to resist this time!

which is why he was sitting on his knees again like always but this time with a bloody nose and busted upper lip.

that'll teach the stupid nerd to go against him! deku needs to know who's superior.

he grins devilishly as he let's his pants and underwear drop to the

floor. he gives his flaccid cock a few strokes and deku opens his mouth eagerly, ready to take him.

but starts to slightly panic again when katsuki turns around.

"what an eager little slut, ready to take this ass, shitty nerd?!" katsuki barks and bends over

he catches something shift in the nerds bright wide green eyes and suddenly he's being manhandled by the smaller man as he spreads his legs and cheeks that makes katsuki gasp. too awestruck to even protest.

izuku starts to eat his ass ravenously. he's rough and fast as he sucks, and licks his rim while the blond is a moaning mess.

katsuki reaches for his cock but a hand slaps him away and fuck its too hot to fight it. so he braces himself against the bathroom stall wall instead

letting izuku take over.

and Izuku stops for a moment, making katsuki groan at the sudden halt and his eyes nearly bulge out his sockets when he feels a spit slick finger ease its way inside.

"fuck—wai—hnng, deku!"

/and it feels like fucking heaven/

he can feel his body warming up as Izuku’s finger continues to thrust in and out softly.

/shit, shit, shit, yess fuck more!!!/

and it's like izuku could read his mind because he feels another finger slip in and there's a slight strain but after a few strokes

katsuki's back to feeling the same heat in his belly again and then the fucking bastard curls his fingers in a way that makes katsuki literally see stars, comets, planets, galaxies until everything turns white and his orgasm crashes through him like he just got sucker punched.

his legs shake and give out as he falls to the floor on his knees.

he's panting in his afterglow, completely spent when he sees izuku stand up in front of him.

he's going to run away like a crybaby.. /just like always/ katsuki assumes.

instead izuku is taking off his pants and letting them fall to his ankles along with his boxers. his cock is rock hard on full display.

katsuki let's out a nervous laugh with his half lidded eyes.

/so big/

"you got hard from that you shi—hmph—" the next words were stolen from

him as Izuku grabbed a handful of blond hair and stuffed his cock down katsuki's mouth.

to Izuku's surprise there's no fight from the blond as he gags at the large length pounding inside his throat.

izuku starts to realize he really likes kacchan like this.

"hah—kacchan..." izuku groans, "who knew your loud ass mouth was good for something after all."

kacchan looks so cute crying and choking on his cock.

his eyes cross when Izuku pulls harder on his hair and buries his cock into his throat until katsuki's nose is pressed up against Izuku's pelvis.

a moan erupts from katsuki's throat that makes Izuku's cock vibrate deliciously inside.

"hng, yess! moan for me, kacchan—"

and the blond is very obedient as he moans aloud again. letting izuku fuck his face until the smaller man is pulling out right on time to cum all over katsuki's face.

the sight before him, makes Izuku's spent cock twitch a little.

was this really the same bully that was pounding him during lunch earlier?

because all he sees is katsuki's flushed face covered in his cum. mixed with tears and drool with his tongue out.

there's no menacing red glare looking back at him, it's eyes that are practically rolled back.

and there's a puddle of piss on the floor and cum leaking out of katsuki's dick.

"did you really piss yourself from that kacchan?! and you came too?" izuku sounds worried.

like he's back to his old self again. not the one from earlier that was using him like a pocket pussy.

deku's hand is outstretched, to help katsuki up off the floor.

katsuki can't even do much to defend his ego at this point. even in his wrecked state, he slaps the hand away.

"get the fuck out of here, deku." katsuki grits.

izuku adjusts his pants quickly in silence. his eyes occasionally drift to katsuki's flaring nostrils as he sits in his own piss. his jaw is clenched and because izuku knows him well enough. he can tell katsuki's holding back

tears.

before izuku leaves, he scratches the back of his neck nervously, biting at his lip, "okay, uh, I'll see you tomorrow then." he says sweetly, "I'll be sure to eat you out all you want, kacchan...

"and I really want to know how well you can take my cock up your ass." that similar dangerous glint returns in his eyes.

izuku pulls out his phone from his pants pocket and points his camera at the beautiful sight before him.

"oi, get the fuck out!" this time katsuki screams, the tears in his eyes now threatening to spill.

"i just want to make sure we can still hang out tomorrow," izuku grins and walks out, letting the door slam back on its hinges.

-end