Chapter Text
“Midoriya! Truth or Dare?”
Izuku’s head snaps up, being pulled out of his own thoughts by Mina’s bubbly voice. He doesn’t know how long he’d been in his own head for, but if he had to guess it was probably around when Kacchan had gone from giving Kirishima a lap dance to shoving his tongue down his throat, which was definitely NOT part of the dare he’d been given.
—
The party had been going on for a few hours by now, and they had already gone through a couple bottles of the booze that Kaminari and Mina had managed to sneak in. Midoriya was feeling a little tipsy by the time Mina suggested they all play truth or dare, and as usual, he was roped into it. The truths and dares started out relatively tame like they always do, but then Tooru started the downhill spiral when she asked Todoroki what his kinks were.
After that it quickly turned into dirty questions and even dirtier dares. Within an hour, half of them were missing at least one item of clothing and Sero was completely naked except for his socks. Midoriya had avoided major embarrassment for the most part, only having to disclose his Daddy and choking kinks and lick Kacchan’s sweat soaked hand.
That was until Mina picked him, knowing he had just done a truth, and, according to the rules they established at the beginning, unable to pick it again.
—
Which leads him to his current predicament. Alcohol swimming in his system, making his vision warble slightly, and his underwear forming a damp spot from watching Kacchan ravage Kirishima’s mouth.
“U..umm…d..dare”
The smile that forms on Mina’s face is malicious to say the least. Midoriya gulps and presses his legs together.
“I dare you to….. Go into Aizawa-Sensei’s room and take a picture of him sleeping!”
His jaw drops to the floor as he mentally prepares his will. There’s no way he could do that! Sensei is a pro hero, and an underground one at that! He’d wake up as soon as the door to his room opens!
“W..what?! I c..can’t do that! He’d catch me for sure!”
The empty space beside Mina giggles. Oh yeah, Tooru had decided to strip at the same time as Sero for ‘solidarity’.
“That’s not our problem, I-zu-ku. A dare’s a dare. You have to do it!”
He’s unable to say anything else in his defense since Mina is already pulling him up and pushing him towards the front doors. Before he knows it, he’s surrounded by cold night air, making the quickly cooling mess between his legs uncomfortable, and the only thing he hears is the sound of the door lock clicking in place behind him. He swears under his breath and makes sure he at least has his phone on him before starting the short walk to the teacher’s quarters. His short shorts and thin sleep shirt doing little to help against the chilling wind.
His nipples are sore from the constant assault of the cold and his shirt rubbing against them. He wants nothing more than to curl up in a pile of warm blankets in his dorm…and maybe masturbate since alcohol always seems to turn him into a horny mess. His thoughts quickly sober up when he reaches the doors to the teacher’s quarters.
‘Maybe they’ll be locked? Yeah! Of course the teachers lock the door before they go to sleep.’
His hand reaches for the handle as he continues his mental reasoning.
'alright! I'm just going to pull on the handle, the door will be locked, and I can go and tell them I couldn't get in and then go to my ro—'
The door opens.
'dammit'
With a deep sigh, he walks into the teacher's quarters and up the stairs, stopping when he reaches quarters marked ‘Aizawa S.’ Any hopes he has for this door being locked are quickly shattered when the knob turns with a nearly silent click. He holds his breath and his heart stops as he slowly opens the door to his Sensei’s room.
The only light in the room comes from the moonlight flooding in through the window above his bed. Midoriya takes careful steps as he enters the room, slowly shutting the door behind him. As it slides closed with a gentle click, Aizawa lets out a soft sleeping sound. If Midoriya wasn’t currently shaking with fear he might even call it a cute sound, but as he stands there in the darkness of his teacher’s private living space, one loud noise away from being expelled, he can’t think of anything except wanting to get the picture and get out.
He searches for his phone, eventually pulling it out of his pocket and immediately scrambling to catch it as it slips from numb fingers. He unlocks it and cringes at the blinding brightness that assaults his eyes as his phone comes to life, quickly lowering it as much as he can before opening the camera app. As he raises it up to try and get the best angle of the subject of this ridiculous dare, he takes a moment to study his Sensei.
Aizawa is laying on his back, moonlight highlighting the relaxed look on his face. Midoriya has never seen him like this before, so used to his stern expression that he was convinced he couldn’t look relaxed. One of Aizawa’s arms is resting over his chest, the other splayed out above his head. The blanket is laying at his waist, exposing his chest covered in numerous scars fitting for a man that’s devoted most of his life to hero work. Midoriya gets lost in his thoughts, having to hold back tears thinking about this man that has protected him and his classmates for three years of their lives, willingly laying down his life for them too many times to count.
Midoriya is brought back to the present when his phone falls asleep and he once again has to unlock it. Right! He’s here to take a picture and leave. Easy enough. He makes sure his phone still has a good angle on Aizawa, takes a photo, and immediately freezes.
If the loud ‘click’ sound from his phone taking a picture isn’t bad enough, then the bright flash from it definitely is. Right, he’d forgotten to turn that off, and now he was going to die when Aizawa wakes up.
He wants to run, just turn around and sprint back to his room using full cowling to assist him, but his body is frozen solid. He closes his eyes and awaits his fate, whether that be defenestration or expellation. After a few moments of complete silence, he risks opening his eyes.
Aizawa is laying there, still in his sleeping position, the only difference being his body having shifted away from the bright flash of light. Midoriya lets out a sigh of relief, thankful to be able to live another day. He starts to turn around to head out he door when he sees it.
Aizawa’s shifting must have disturbed the blankets, because now Midoriya is directly staring at the black band of his Sensei’s boxers and a very prominent erection pushing against the fabric of them.
Midoriya blushes and shifts to turn away, but the wetness he feels between his legs stops him. The rational side of his brain and the drunk, horny side have a quick internal struggle. He knows which side won as soon as his body turns and takes a careful step towards Aizawa’s bed. As he’s slowly approaching, he notices the cause of his Sensei’s heavy sleeping.
On the table beside his bed, there’s a half empty bottle of cold medicine.
“huh, I guess Sensei was feeling a bit under the weather today.” Midoriya whispers.
His knees make contact with the bed and his hand instinctively reaches out to trace a scar on Aizawa’s chest. It’s a pale white line on his abdomen that looks like a stab wound. His hand traces a few more of the scars adorning the body below him, and before he realizes it, his fingers are brushing against the waistband of Aizawa’s boxers. The tent pressing against them throbs and Midoriya lets out a small gasp.
“W..what am I doing? T..this isn’t right. I shouldn’t—”
Just then, Aizawa’s cock twitches again and he lets out a low breathy moan. Midoriya stops his moral dilemma when a wave of slick gushes out of him. He presses his thighs together and steadies himself. Then, his hands grip the waistband of the boxers and gently pull them down. Aizawa’s cock springs free and Midoriya’s eyes widen. His cock is long and thick, pulsing evenly with a bead of pre at the tip. Midoriya licks his lips.
“Fuck… Sensei is hung”
He swipes up the bead of pre and brings it up to his lips. He licks it off and his eyes roll back into his head. He needs to taste more of it. He pulls the boxers down to Aizawa’s thighs and then gives his cock a few slow pumps, watching his face for any signs of waking up as he urges more pre to the surface.
After seeing no signs of Aizawa waking, he looks back down to see a long line of pre already leaking down the shaft and over his hand, which he eagerly brings to his mouth to lap up. Fuck, he could get addicted to that taste. He already wants more, so he sits his knees onto the cold wooden floor and promptly wraps his lips around the leaking tip. His tongue reaches out to lap at the slit while his hand moves down to grab his teacher’s balls, feeling their weight and gently massaging them. He’s slowly working more of the thick cock into his mouth when Aizawa moans again, a bit louder than the last time.
Midoriya’s eyes shoot up to check on him, and sighs in relief when he finds a relaxed face and still closed eyes. He lets out a deep breath and gets back to work, bobbing his head up and down slowly while stroking what he can’t reach. His underwear is already soaked through, so he releases his Sensei’s balls and instead shoves his hand down his shorts, immediately pressing two fingers into himself. The cock in his mouth muffles most of his slutty moan, and he quickly gets to work pumping two fingers in and out of his throbbing pussy.
He doesn’t wait long before adding a third finger, enjoying the slight stretch it gives him. Aizawa is leaking a steady stream of pre by now and Midoriya is eagerly swallowing down every drop. He's stopped being as careful about the noises he's making, instead focusing on working himself closer and closer to a mind-blowing orgasm.
He’s right on the edge of cumming on his fingers when he feels the body below him buck into his mouth, pushing Aizawa’s cock down his throat a little bit. He holds back a gag as his heart starts jackhammering in his chest. He prays to whoever is listening that his teacher hasn’t woken up, and silently thanks them when he sees that Aizawa is still fast asleep, though his face is a deep shade of red and he’s breathing is heavier.
“Sensei must be close…”
The thought of making his teacher cum in his sleep gives him enough motivation to move forward. He quickly but quietly strips his shirt and pants off, having to peel the underwear off of his soaked thighs. He stands up and starts to slowly straddle Aizawa’s thighs, careful not to move too quickly.
He finally gets settled and feels his Sensei’s throbbing cock pressing against his folds. He bites down on his lip as he grinds against the cock a few times, enjoying the warmth of it so close to where it’s going to be buried inside him soon. After a few more seconds, he leans up and positions the tip of Aizawa’s cock against the folds of his pussy, he’s so wet it almost slides in on its own.
“Ok, Sensei, are you ready?”
Without waiting for a response he holds himself up with powerful legs, and slowly presses the tip in.
The moan he lets out is anything but quiet, and the girth of the tip alone makes him worry that he might not be able to fit the whole thing in, but he’s nothing if not persistent. After taking a few deep breaths, he lowers himself a bit more and that’s when it happens. Aizawa’s cock throbs inside him as he takes another inch, and Midoriya’s legs tremble before promptly giving out, slamming the entirety of Aizawa’s cock into his pussy.
Midoriya screams as he cums, never having taken anything quite that big before. One hand tries to cover his mouth while the other scrambles to grab onto whatever it can, which happens to be his teacher’s thigh. His nails dig in hard enough to draw blood as he tries to steady his breathing. He fails miserably and his heart freezes in his chest when strong hands grip his thighs. He looks down at his Sensei’s face to see black eyes staring back at him.
Aizawa is awake.