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“You’re still here?”
Izuku lifts his eyes from the paper he’s holding and finds his coworker peeking his head through the classroom door, disapprovingly looking at him with a raised brow.
“Yeah,” he sighs, leaving the half-graded paper on the desk. “I’m behind on these essays, and I promised the kids I’ll have the grades by tomorrow.”
“You can’t keep working late so much,” the other teacher shakes his head. “But I guess being a teacher includes a lot of sacrifices, doesn’t it?”
Izuku lets out an airy laugh. “Don’t even tell me about it.”
“Well, good luck with those. I’m going home,” his coworker waves a friendly hand, to which Izuku reciprocates with a wave of his own. “Don’t stay too late, Midoriya-san.”
“I won’t,” Izuku says with a small smile. When his coworker leaves, Izuku slumps against his chair.
He lets out another sigh. When he glances at the clock on the wall, he nods to himself. He still has time. Pushing his reading glasses up the bridge of his nose, he grabs the paper he was grading before. He squirms a little before he finds a comfortable position again, but ultimately resumes his grading within little time.
He really likes this student, despite her being a little problematic. Izuku calls her spicy, and it would be a lie to say she doesn’t remind him of a certain someone. She had an attitude problem and a sharp mouth, but damn if her quirk wasn’t amazing. She could manipulate reality to a certain extent, transforming objects she touched or producing visions. It was a very powerful quirk, and she had an impressive ability to manage it. She was beyond creative and bold, but she still had a long way to go. Izuku is excited to be able to guide her through such an important phase of her life and—
Suddenly, it’s like the air is sucked out of his lungs, and he has to let go of the paper once again to grab onto the edges of his desk and throw his head back for a second, sharply inhaling.
He has to take a few deep breaths so the oxygen finds its way back to his brain. When he feels capable of moving again, he pushes his chair back and frowns down at the reason for his distraction.
Kacchan is innocently looking up at him through his pale lashes, with Izuku's heavy dick still in his mouth.
Izuku clicks his tongue and pulls back, making his dick fall out of Katsuki's mouth and leaving a wet spot on the side of his dress pants where it lands. Katsuki protests with an unhappy growl, but Izuku isn't having it.
Brat.
“Kacchan, you know the rules.”
The blonde purses his spit-shiny lips. “But you're taking so long.”
“I don’t care,” he replies sternly. “The rules are the rules. No sucking.”
Katsuki‘s brows furrow, and he attempts to look away in a childish gesture of discontent, huffing and puffing.
Izuku is truly not in the mood for that. He’s tired, and he wants to go home as much as Katsuki does. This is only making them waste time they could be spending in their bed at home.
Izuku grabs Katsuki by the chin, somewhat roughly, and forces him to look up. Katsuki blinks up at him in slight surprise, but doesn't give in. he still has that defiant look in his eyes, burning like a wild flame.
Izuku loves a challenge. His dick twitches.
He presses his thumb to the side of his mouth, where drool and precum mix and coat his perfect skin, and wipes it off.
“You promised to behave if I let you stay here while I finished. Should I regret my decision?” he says in a calm voice, with Katsuki's blushing face still resting in his hand.
Katsuki seems to think about it, but when Izuku presses on the side of his jaw to flex it open, he finally seems to make his choice, eyes fluttering shut for a second.
“No,” he murmurs, it comes out slightly broken, “I’ll wait.”
He's so pretty like this. Cock-drunk and so docile after a little push in the right direction. All his Kacchan wants is attention from his busy boyfriend. Izuku can’t blame him. He's missed him, too.
“Good boy, Kacchan,” Izuku smiles adoringly at him. His thumb moves to the inside of Katsuki's warm mouth and pets his tongue, feeling the bumpy texture on the pad of his finger.
Kacchan obediently opens wider and allows Izuku to do whatever the hell he wants.
How can Izuku get mad at him when he's so perfect for him?
“Just 30 more minutes and we can go home,” he promises. “Okay?”
“I guess,” Kacchan grunts around his thumb.
Izuku pushes his thumb on the back of his tongue and makes him gag. “Careful, Kacchan," he warns, feeling a wave of arousal pulse through him when he sees Kacchan's eyes fill with tears as part of the gag reflex, but he doesn't say anything, just gives him a mean glare that's still kinda dazed and keeps his mouth wide open for him, patiently waiting.
Izuku takes his cock into his hand, cringing at the cold feeling of the drying saliva on it. He teases a little, gently tapping his dick a few times on his pink lips before finally sliding in.
Katsuki greedily takes it all like a man starved, slow inch by slow inch. His eyes go half-lidded when Izuku's whole length is back inside his mouth — and to his sake, this time he doesn't suck, just allows Izuku's dick to be a comforting weight on his tongue, enjoying the familiar feeling of it and letting his brain get foggy from it.
Izuku pleasantly hums, tangling the fingers of his left hand between spiky locks. Katsuki breathes loudly again when blunt nails scrape his scalp, and his eyes fall closed as he rests his head on Izuku’s thigh.
Satisfied, Izuku goes back to grading, humming softly to himself as he keeps stroking Kacchan’s hair and face. Occasionally, Katsuki will readjust himself or change his head’s angle, sometimes lapping at the sensitive head of his cock as he did. It makes Izuku's toes curl inside his shoes and causes him to drop his pen, eyes momentarily rolling back. But he’s willing to overlook that.
He really does want to get home as soon as possible.
He manages to successfully grade almost all the remaining essays uninterrupted for the next 20 minutes, until there's some quiet knocking on the outside of his classroom door.
To his absolute horror, Aizawa is the one who pokes his head in this time.
He tenses, and Kacchan must feel it because he goes completely still, and his breathing becomes shallow.
“Midoriya,” he greets with a rough voice. As always, his former teacher looks tired and unamused by the world. “I left the keys beside the coffee pot in the teacher's lounge. Don't forget to lock when you leave.”
Nervously, Izuku nods. “Yes, sensei. Goodnight.”
“I told you to stop calling me that,” the man sighs. “Goodnight, don't take too long,” he says, and then turns around to leave.
And right when Izuku thinks he's in the clear, Aizawa glances over his shoulder and adds, “And tell Bakugou to get out from under your desk and leave before I officially ban him from setting foot in this school ever again.”
Izuku makes an aborted noise, and Katsuki chokes underneath the desk, hitting his back against the wood and making the whole thing move, exposing him and Izuku's wet (and now soft) cock.
Thankfully, Aizawa is already gone and doesn't witness the pathetic sight, but Izuku can still hear him complaining and cursing at them down the hall.
Katsuki rubs his sore head as he shoots Izuku an accusatory, dirty look.
“You said you had taken care of the cameras outside!”
“I did!” Izuku poorly replies, “They must have replaced them when I didn't notice!”
“Fucking amazing,” Katsuki whines, standing up from his place on the ground. “I will never look at the man in the eye again.”
Izuku stays quiet, contemplating whether he should turn in a resignation letter anytime soon.
“To be fair, it's not the first time that he’s caught us-”
“Shut up, Izuku.”
“Sorry.”
Out of the blue, Kacchan leaves behind his sour expression and cracks a grin.
“What?” Izuku asks.
“Heh, serves him right for threatening us with expulsion all the time back in first year.”
“Kacchan, you can't be serious.”
“I’m sure he's seen worse. working with teenagers living in dorms? We're amateurs compared to pubescent hormones,” Katsuki brushes it off.
He's got a point, but izuku is not about to accept it.
“Just— let's go home,” the teacher says, defeatedly opening a folder to put the few essays he's yet to grade inside. “I still have to grade these.”
“Can I suck your dick while you do it?”
Izuku narrows his eyes on him and lifts an eyebrow. Kacchan looks back without any shame whatsoever.
“No, you're unbelievable.”
But when Kacchan looks genuinely sad about it, he groans. “Ugh, maybe. Just hurry up.”
Katsuki gives him a smug smirk, and Izuku has to bite back a smile.
They really are terrible.