Archive of Our Own ^beta

Chapter Text

“This is all absolute FUCKING BULLSHIT!!!” Bakugou screeched angrily, his ears practically fuming hot steam from all the rage bubbling up inside of him as he scooped three tablespoons of formula powder into a baby bottle, “I shouldn’t have to deal with all this BULLSHIT!!” He screwed the nipple back onto the bottle and shook it with all his might, effectively mixing the powdered formula into the warm water.

The explosive blonde continued to mutter a string of profanities as he stomped his way out of the dorms’ kitchen and into the living area, where Todoroki sat (as well as all the other classmates), holding a whiny, green-haired infant in his arms, with an unimpressed look on his face. Recovery Girl sat beside the duo-haired teen with a patient smile upon her lips.

Izuku had unfortunately had a run-in with a villain and was reverted back into a five-month old infant. And, unfortunately enough, his mother was on a business trip and wouldn’t be back for a while. With no relatives to take care of Midoriya, Recovery Girl decided that his classmates would be the perfect caretakers. Hence, why Bakugou was furiously preparing a bottle.

“Are you going to keep complaining or are you going to hand me the bottle so that I can feed Midoriya-san?” he asked in monotone. The de-aged classmate gave a fussy whine at the comment, expressing that he was hungry.

“SHUT THE HELL UP, HALF-AND-HALF!” Bakugou screamed, tossing the bottle into Todoroki’s free, waiting hand.

“Alright now everyone, make sure that you listen closely while I teach Todoroki how to feed Midoriya-chan. This is something that you all need to know how to do.” She stated, turning toward Todoroki. “Make sure that you support neck and head with your arm. Good, now be sure to hold the bottle at a slightly tilted angle, but don’t tilt it too much or you’ll make Midoriya-chan choke.” She instructed.

Todoroki hesitantly stuck the nipple into Midoriya’s toothless mouth and tilted it just as Recovery Girl had told him, “Like this?” he asked quietly and watched as Izuku cooed against the nipple and suckled down the contents of the bottle with a content gaze. His small, white-socked feet wiggled happily in Todoroki’s lap and his tiny hands gripped the bottle as he continued to drink his formula.

“Yes, perfect.” She praised happily and turned to look at Kiminari, “Kiminari-san, you’re going to be the first to burp Midoriya-chan. Here.” She handed the electric teen a medium-sized towel, “Put that over your shoulder. Todoroki-san, hand Midoriya over to Kiminari once he’s finished his bottle.” She told him and Todoroki gave a stiff nod, seemingly mesmerized by his de-aged classmate.

Once Izuku was done with his bottle, Todoroki slipped the nipple out of his mouth and wiped the dribble of milk that trailed down the green-haired infant’s chin with a soft cloth before handing him over to Kiminari, who was smiling uneasily.

“Ok, now make sure that you hold him to where his chin rests on your shoulder.” Kiminari did as he was told and Recovery Girl nodded, “Good, now gently pat him on the back until you hear him burp. Izuku needs to be burped for at least 15 minutes to help with indigestion, ok?” she instructed and everyone nodded in confirmation.

Kiminari hummed uncertainly as he hesitantly patted Izuku’s back. Izuku squirmed a bit, continuing to move his legs as much as possible and whining. There was an uncomfortable pressure welling up inside of him. Kiminari frowned as he gave out a tired sigh, “Man, this is a work out.” He voiced, some of the students chuckling before he gave out a gasp, “Ah, he burped!” He exclaimed before another wet burp was heard and Kiminari noticeably cringed. “Annnd, he spit up on me…” he mused out unhappily, his face holding a disgusted look.

“HAHAHAHAHAHA!” Bakugou wrapped his arms around his stomach as it cramped up from all the laughing that he was doing. The other students attempted to hold in their laughter, though many failed and ended up laughing anyways.

As though he understood the hilarity of the situation, Izuku gave out a loud squeal against Kiminari’s shoulder and kicked his legs.

Recovery Girl gave out a sigh and spoke amongst all the laughter, “And that’s what the towel is for.” She announced.

After burping Izuku, Recovery Girl pulled out a boppy and sat it on top of the All Might blanket laying on the carpeted floor near the couch. Kiminari laid Izuku down on the boppy and left to wash up, sulking the entire way about getting laughed at by everyone.

“I’ve got to go do some work back at the school. Someone needs to stay here and watch Midoriya-chan. Everyone else can go eat breakfast if they haven’t.” Recovery Girl assured and Bakugou snorted.

“I’m not taking care of that shit-producer!” he sneered, crossing his arms over his chest defiantly.

Kirishima smirked mischievously, “Why? Are you scared?” he teased.

Bakugou took the bait, turning to glower at the red-head. “HUH?! I’M NOT SCARED OF THAT FUCKING DEKU!” he screamed and Kirishima shrugged.

“I think you are. Everyone else in here is willing to watch him except you, so you must be scared.” Sero mused out in a knowing tone.

Bakugou’s face nearly turned blood red from the boiling anger as he pushed each and everyone one of the students into the kitchen and dining area, “I’LL SHOW YOU! GO EAT YOU SHITTY BREAKFAST, BASTARDS!” he ordered.

“If you say so.” Kirishima answered from the dining area and Bakugou gave a strong huff as he marched back over to Izuku, who laid on the boppy with one of his hands stuffed in his mouth.

“I’ll show them.” He commented and turned on the TV, watching whatever was on while making sure to listen out for Izuku.

Izuku gave out a gurgle and Katsuki looked down at him inquisitively. Izuku gurgled again, holding his hands out towards the explosive blonde and kicking his feet wildly. Katsuki clicked his tongue in realization. Izuku wanted him to pick him up.

“I’m not picking you up, Deku.” He spat out curtly and turned back to watching TV, he could faintly hear everyone eating in the dining area. He was cut short in his activities when a loud whine echoed from Izuku’s toothless mouth and Bakugou turned his head to look at the infant again. Izuku immediately smiled again, giving out a breathy laugh as he reached his arms out to him once more.

Katsuki furrowed his brow a bit, ‘Is he trying to play with me?’ he thought and pretended to watch TV again and, of course, Izuku gave out a loud whine to grab his attention and giggled when Katsuki looked at him again, reaching his chubby arms out to him.

Bakugou fought, and failed, to keep his lips from turning into a smile as he continued to play his little game with his de-aged, childhood friend. As he played with Izuku, the blonde failed to notice that Kirishima had stuck his head out the dining room doorway and was now leaning against it. The red-head watched the duo play with each other and couldn’t stop himself from chuckling when Bakugou flashed the small infant a goofy smile, causing said infant to give out a gurgled squeal.

Kirishima clamped a hand over his mouth and Bakugou whipped his head around in alarm, blushing immediately when he saw that he’d been caught.
“Don’t worry, Bakubro, I won’t tell anyone. Besides, keeping children happy is way manly!” he assured with a shit-eating grin.

“LEAVE ME THE FUCK ALONE! I’LL KILL YOU, HAIR FOR BRAINS!” he screeched, the blush taking over his face.

“Aww, don’t be embarrassed, Bakubro!” Kirishima teased, yelping when he was suddenly mercilessly assaulted with soft baby toys. “AH! UNCLE! UNCLE!” he cried out, shielding his face and running back into the kitchen.

Bakugou smirked victoriously before glaring back at Izuku, “If he tells everyone, I’m going to end you when you turn back. Got it?”
Izuku simply cooed out happily as an answer, not understanding a word that his friend was telling him.

Maybe this whole baby thing wouldn't be so hard after all.

Chapter Text

Dry retching noises echoed through the halls of dorm 1-A as Kaminari covered half his face with his arm in a futile effort to lessen the stench that filled Midoriya’s infantized room.  His eyes watering at the horrid odor emitting from Midoriya.

Kirishima, standing in the room with Kaminari and Bakugou, pinched his nose closed to halt the horrendous smell from reaching him as he shuddered, “What the hell have we been feeding him?” he coughed out from behind Bakugou.

“You haven’t even opened his diaper yet, kero. Hurry up before he gets a diaper rash. And trust me when I say that diaper rashes are much worse than this.” Tsuyu stated calmly, playing some game on her phone. Seeing as she had two younger siblings, she’d most likely already changed a good bit of dirty diapers. She was only there to help Kaminari out on how to do the nasty job.

“Yeah, hurry the fuck up, Dunce-Face.” Bakugou spat, one arm covering his nose and the other holding his phone out to record the electricity user’s suffering.

“Why the hell are you two even here?!” Kaminari belted angrily, gasping when he finally saw the phone’s camera pointed at him. “WHY’RE YOU RECORDING ME?!” he screeched, making a move to launch himself at Bakugou.

Bakugou smirked, “You can’t leave Deku at the changing station, he could roll off.” He reminded with a jeer.

Kaminari pouted his lips out, squinting his eyes, “This is bull.” He started muttering to himself as he slowly started to reach towards the yellow tabs of Midoriya’s diaper. “First I get spit up on and now I have to change his stinkin’ diaper because I drew the short straw.” He slowly undid the two tabs gulping nervously, Kirishima backing up a step and putting a clingy hand on Bakugou’s shoulder for support.

“Get on with it, kero.”

“Ok, ok!” Kaminari cried, taking deep breaths in from his mouth and slowly counting down from three in his head. ‘Three… Two… One!’ He quickly pulled back the diaper, revealing the damage that Midoriya had done.

“KYYYYYAAAAAAA!”

“HAHAHAHA! THIS IS FUCKING GOLD!”

“I’m gonna be sick, Bakubro.”

“DUMBASS, GET OFF OF ME!”

“You three, it’s not even that bad, kero.”

“I’ve decided.” Kaminari spoke aloud as he dragged himself out of Midoriya’s room and into the living area with everyone else, his face a sickly, faint green color. Tsuyu coming out from behind him with a happy Midoriya in her arms.

Sero raised an eyebrow in question, “Decided what?” he asked.

“That I am definitely not going to have children!” He concluded, “I don’t understand how anyone could be just fine doing that almost every day! Babies may be cute, but they’re disgusting! I can’t even look at the world the same way anymore! Heck, I’ll never be able to eat chocolate ice cream again!” he cried out.

Kirishima sighed, “Yeah. I’m gonna apologize to my parents the next time I talk to them.” He commented.

Momo shook her head and popped an All Might pacifier into Midoriya’s mouth before rocking him gently where she stood, lulling their de-aged classmate to sleep. “You guys are being dramatic.” She uttered quietly.

Kaminari crossed his arms over his chest with a huff, “No, I’m not. I’m quite sure that I could face any villain right now and come out just fine. I’ve already been exposed to the worst thing that can be seen by man.”

“Pfft.” Jirou laughed out under her breath, “Yeah, ok, Chargebolt.”

“I… AM COMING THROUGH THE DOOR LIKE A-!”

“SSSSSSSSHHHHHHH!” All Might was interrupted midsentence by violent shushing from his students. He shrunk back at the annoyed glares coming from his precious students before bowing his head.

“S-Sorry.” He apologized, shifting down into his true from with a wet cough. “Where’s Izuku?” he asked, “I heard from Aizawa that he’d been turned into an infant. Is that true?” he asked.

Momo nodded, “Yes, it’s true. Recovery Girl came to us about two days ago with him in a baby carrier and taught us how to take care of him. I just put him down for his afternoon nap not too long ago. He should be back up soon enough.” She explained.

“Ah, I see. Have you all been enjoying the experience?” he inquired, sitting down on the couch next to Uraraka.

Kaminari was the first one to speak, “No!” he exclaimed in a loud whisper, “When I first had to burp him, he spit up on me and even though I had a towel on it still got everywhere! And then he crapped his diaper and no one would willingly change him. So we drew straws and I ended up drawing the short stick and had to change him.” Fake tears ran down his face, “All Might-sensei! It was awful, truly awful! And Bakugou and Kirishima were laughing at my suffering!” he ranted.

Kirishima shook his head defiantly, “Nu-uh, I wasn’t laughing! I almost threw up from such an unmanly sight!” he pouted in defense.

“I was fucking laughing at you, Dunce-Face.” Bakugou sneered with a mocking snort.

Toshinori chuckled softly, “Well, no parent enjoys that part of having a baby.” He stated simply. There was truth behind what he’d said. No one, and he meant no one, enjoyed changing diapers. That wasn’t an enjoyable thing to do in the least. “But that’s good that you guys didn’t mind taking care of Midoriya in such a vulnerable state when his mother couldn’t be here for him.” He praised gently, sitting back with a sigh.

No one could help but smile bashfully, “We would’ve done the same if it’d been anyone else.” Uraraka admitted with a blush. “And besides, it hasn’t been that bad. Deku’s actually a well-behaved baby, he doesn’t really cry that much at all.”

Todoroki suddenly came out from the hallway holding a fussy Izuku in his arms. Their infant classmate had his hand shoved in his mouth as he whined hungrily. Todoroki glanced over at his classmates as he made his way to the kitchen, “There’s some bottles in the fridge already, right?” he asked, receiving numerous nods of confirmation.

The duo-haired teen came back a couple minutes after holding a warmed bottle away from Midoriya’s grabby hands and sitting down in a vacant chair near all his classmates.

Toshinori gazed peacefully at his successor as Izuku reached for the bottle, his big green eyes glowing with determination. Still determined as ever, even at five months old.

Jirou suddenly lifted her head up, looking away from her phone and up at All Might, “Now that you’re here, what’re we going to do about classes. As much as I enjoy having Midoriya around, he’d be a distraction and we’d be too busy trying to take care of him.” She explained, watching the infant hum happily against the bottle, some dribbling down the sides of his mouth.

“Oh, yes, the other teachers and I decided that we’d take turns watching Midoriya in the teachers’ lounge. That way you can all have your classes without having to worry about Midoriya.” Toshinori said, seeing that all his students were relieved at the news.

“That’s good. I was worried that we would have to cancel classes or do self-study for a while.” Iida voiced, arms moving robotically.

Kaminari looked down depressingly, “I was hoping that.” He muttered.

“I’m on the same boat, buddy.” Mina moaned sadly, putting a supportive hand on his shoulder as they both groaned miserably.

“Eeeehhh~!” Katsuki’s eyes snapped open, the sound of Midoriya’s quiet cries had him wide awake now. He looked up at the ceiling of his dorm room, waiting for one of his other classmates to get Midoriya like they always did. But after about 2 minutes of continuous cries and whines from his de-aged, childhood friend, Katsuki forced himself to quickly get out of bed and check up on the 5-month-old.

He silently stomped his way into Izuku’s, now babified, room and strolled his way over to Izuku’s railed bed. He glared tiredly at Izuku, who noticed the blond standing above him and was now reaching his hands out to him with a big pout.

Bakugou scoffed amusingly at Midoriya, “What? That’s what you woke me up for? You wanna be fucking held, Deku?” he asked, knowing full well that Midoriya didn’t understand a word that he was saying. When Midoriya let out another whine, Bakugou took a quick look towards the door to make sure that Kirishima wasn’t standing there to catch him in the act before picking up Midoriya and holding him to wear he was patting Midoriya on the back and slowly pacing the small dorm room back and forth.

Katsuki muttered under his breath as he felt Midoriya’s body start to relax as he fell asleep, “Damn Deku, making me rock you to sleep. You’re lucky that you’re just a baby right now, and besides, I’m only doing this because I can’t out sleep your crying.”

Midoriya only answered with quiet coos, his big green eyes growing heavier and heavier as he was lulled to sleep by Katsuki’s surprising gentleness.

Once Izuku was asleep, Katsuki breathed a sigh of relief, smiling softly to himself, is this what it was like to have a younger sibling? He wouldn’t know since he was an only child, but he found himself enjoying his alone time with Izuku; he would never say that out loud though.

Kccha!

“Fuck. The flash was on…”

A flash of light and a soft curse made Katsuki snap his head towards the door.

Kirishima, Sero, and Kaminari all stood at around the doorway, Kirishima standing in the middle with his phone out. All three of them had their eyes wide open in surprise and fear.

Katsuki felt his eyes widen, he’d been caught yet again.

The three heroes’ in training watched the explosive blond gently lay Izuku back onto his railed bed before, with surprising quietness, sprinting at them with the most deadliest, angriest look in his tired eyes.

“RUN!” Sero whisper-yelled, “And don’t forget to send the picture to us!” he reminded Kirishima as all three of them sprinted to their dorm rooms, shutting and locking the door behind them.

Katsuki loomed over Kirishima’s door, a red blush taking over his face as he glared at the door, he couldn’t bust it down or Midoriya would be woken up, along with everyone else. So Katsuki turned heel and left, he’d deal with those three in the morning.

“Just wait, you fuckers.”

Chapter Text

“C’mon little man, drink your bottle.” Kirishima gently offered the warm bottle to Izuku for the umpteenth time, sighing when Izuku refused it once again, giving out a tired whine with flushed cheeks. “Strange. You didn’t drink much this morning, so you should definitely be hungry now. What’s wrong, huh?” he asked softly, bouncing Izuku caringly as he cradled him.

Mina stared worryingly, holding her hands out and making a grabbing motion. Kirishima nodded and reluctantly handed Izuku over to her. She put the back of her hand against his forehead, frowning after a minute or so. “I think that Izuchan has a fever.” She concluded.

Momo, who was walking by with some freshly washed laundry, stopping in her tracks. “Fever?” she repeated worringly, setting the laundry down, “Has Izuku not been doing well today?” she asked.

Kirishima shrugged, “Uraraka warned me that he was a bit fussy this morning, but his mood has just gotten worse and now he won’t even eat. Should we get Recovery Girl?”

Momo shook her head, “Not yet. You can’t check a baby’s temperature from their forehead, it isn’t accurate, but Izuku is a bit warmer than usual.” She produced a small thermometer, “First we’ll check his temperature from his underarms. If his temp reads over 99 F, then we’ll have to get Recovery Girl to take a rectal temperature.” She informed the two, slipping Izuku’s light blue shirt off and sticking the thermometer into his armpit.

Once the thermometer beeped, she pulled it out and looked at it, “100 F.” she frowned as looked down at Izuku, who’d calmed down a bit and was chewing on his fingers. “Please get Recovery Girl, Mina.” The pink haired girl nodded, leaving the room with haste.

When Recovery Girl arrived, she informed the worried students that Izuku was running a small fever and that he’d be fine, but if his temperature went up any further or he stopped eating, etc, they were to call her immediately.

The room was silent once the nurse left, everyone staring at the flushed baby who was fussily chewing on Todoroki’s right hand, enjoying the coolness. Todoroki didn’t seem to mind, staring back at his classmates indifferently.

Denki chuckled, trying to lighten up the mood, “Recovery Girl said that he was fine. He’ll just be a bit more fussy, that’s all. Everything will be all right and he’ll be fine in a day or two. Right, Izuku? You won’t give us a hard time right?” he gushed, crouching down in front of Izuku and Todoroki.

A small sneeze and sudden wetness halted Kaminari’s gushing as he let out a sad whine, why was he always the victim to the grossness of babies?

“HAHAHAHAHAHA!”

“That’s why I’m sending all the photos to everyone in class.” The laughing came to a dead stop.

“What did you just say dumbass? Do you want to die?” Bakugou threatened, stalking towards Kaminari with smoking palms.

Saying nothing, Kaminari was gone with a flash, Bakugou chasing after him and threatening to blow up Denki’s phone.

Mina leaned over to Sero with a confused gaze, “What photos?”

Sero waved a hand lazily, “I’ll send them to you later.” He promised.
_____________________________________________________________________________________
Midoriya’s screams seemed to echo through the dorms of 1-A, inside there was total chaos.

“Deku, please just go to sleep!” Uraraka whined, patting her baby classmate on the back soothingly while he screeched in her ear.

Iida, who had serious bags under his eyes, looked at the clock and sighed desperately, “It’s 1 in the morning and he’s still pitching a fit. Maybe he wants to play?” he questioned, taking Izuku out of Uraraka’s arms and lifting him upwards and then downwards with robotic movement. “Baby goes up! Baby goes down! Baby goes-!”

Izuku continued to scream, his face scrunched up and red with both anger and sleepiness, his little legs kicking.

Jirou snatched the screaming child from Iida in alarm, “Stop Iida, you’re making it worse!” she shouted.

“Then what do you suppose we do?” Iida asked over Izuku’s crying.

Tokoyami listened from the darkness of his bedroom, shaking his head with his eyes closed, “A true banquet of darkness, indeed.” He said to himself, Dark Shadow nodding in agreement.

“Does he need to be changed?” Ojiro suggested with a shrug, but only received a head shake from Tsuyu.

“We already checked for that, kero.”

“We checked his diaper, he’s not hungry, he’s doesn’t want to play, I checked for teething, but that’s not the problem, he’s just cranky! The fever must be bothering him.”

Mina listed hopelessly, slumped on one of the couches in the living room, where everyone was currently situated.

Kirishima, who was on the verge of tired tears, let out a shaky cry, “Bakubro, can’t you just sing to him or something? He likes you the most.” The suggestion earned him
a smack across the head as Bakugou snapped at him to shut up.

“A lullaby could work.” Shoji stated with a yawn.

Denki perked up at the suggestion and snapped his head to look at Jirou who was trying to calm the poor baby down, “Jirou, that’s it! Sing him a lullaby! That’ll have to calm him down!”

Jirou blushed at the idea, but sat down on the couch anyways, cradling Izuku softly. “Alright, Izuku, please let this work.” She whispered to herself as the rest of the classmates went quiet, watching as Jirou softly began to sing a song, her beautiful voice starting to be heard as Izuku went silent and stared up at Jirou with a look of wonder.

Jirou smiled down at him and continued on with her song, making sure to tenderly rock Izuku to the song.

Once she was finished with the song, she saw that Izuku was fast asleep and looked up to see that the rest of her classmates were asleep as well. Everyone curled in on each other on different couches or on the floor.

“Really, you guys?” she asked, knowing that no one would answer and went to work with putting Izuku to bed without waking him up and trotted off to her room with a satisfied smile, now she could get a goodnight’s sleep and with a bit of luck everyone else would too.
_____________________________________________________________________________________________________________________________________________________________________
After about 2 days, Izuku had recovered from his fever and the students had finally started back on school from their short break, which meant that the teachers would have to keep watch of Izuku for the next couple of days at school.

“Aaaaaahhh!” Midoriya screamed out, his eyes blinking excitedly at the bright yellow rattle that Toshinori was shaking in his face.

Aizawa, who was beginning to leave the teachers’ lounge, made a distasteful face as he looked over his shoulder at the duo, “So noisy.” He growled, “It’s too early to be this noisy.”

Mic laughed out at his sleepy friend, “Oh, please! I bet you think that Midoriya’s just the cutest thing!”

“No, I think that problem child has just become even more of a problem child.” He grumbled out, dragging his sleeping bag with him and disappearing to go teach his class.

Mic turned back to look at the playing duo and smiled fondly, “I’m amazed that our small listener isn’t very scared of you, Toshinori-san. He’s so cheery and energetic!”

Toshinori nodded in agreement, handing the rattle over to Izuku and watching him stuff the handle of the rattle into his mouth to gum and drool all over it. “Yeah, he doesn’t seem to mind my looks too much.” He stated, yelping when Izuku got a hold of his bang and yanked it, trying to put the golden hair into his mouth.

“Ah! No, Young Midoriya! You shouldn’t!” he gasped out, gently unwinding Izuku’s strong grip from his hair.

After being given his bottle, burped, and set down for his mid-morning nap, everything had quieted down. Mic had left for a random break and Toshinori was collecting his papers, getting ready to teach the class, meaning that Aizawa would be left alone with Izuku.

Loud, smelly, drooly, baby Izuku.

Aizawa grunted in annoyance, clearly not happy with how this turned out. Mic obviously left for some random break so that he would be left alone with problem child, that loud bastard was probably off somewhere laughing with Midnight or something, he could feel it.

Toshinori smiled down at the infant sleeping securely in his All Might bean bag, bending down to gently stroke his soft, messy hair before leaving.
Now Aizawa was alone with the problem child. He could only hope that Izuku would stay asleep so that he could stay asleep too. He could only hope.
_____________________________________________________________________________________
Aizawa’s hope didn’t last too long because soon Izuku was back awake and crying, making Aizawa unzip himself out of his sleeping bag and walk over to the crying infant with a tired sigh.

Unhooking Izuku from the bean bag, he realized that Izuku needs of diaper change and grabs the necessary supplies needed for the task at hand. He lays his de-aged student on his changing pad and quickly changes him, throwing away the wet diaper and making sure to wash his hands afterwards. He silently thanked Midnight for teaching him how to change a diaper beforehand. He definitely would’ve been lost otherwise.

Now that Izuku is awake, Aizawa sees that he’s ready to play as Izuku keeps trying to grab at his black locks with an excited smile.

“I don’t really want to play, problem child.” Aizawa admits to his student, hooking Izuku back into his bean bag and handing him the yellow rattle from before, watching Izuku stuff it right back into his mouth, drooling all over it. Aizawa squints his eyes down at Izuku with a ghost of a smile, “Gross.”

He hears the door open just as he sits down at his desk to get some paperwork done and glances over to see Shinsou looking around the room and landing his eyes on Izuku.

Aizawa rolled his eyes tiredly, “What is it?” he asked his student, already knowing that he’d probably heard about Izuku from his other students.

Shinsou shrugged, “I just heard that Izuku was turned into an infant a couple days ago and that you were taking care of him… I’d never thought I’d see you taking care of an infant.” He smirked teasingly, walking over to Izuku, “I mean, I know you’ve got a soft spot for kids, but I never thought that you-“

“Shut up.” Aizawa threatened half-heartedly, “I’m only doing this because I have to. Since you’re here, why don’t you keep him occupied while I do some paperwork?”

Shinsou didn’t answer, already sitting down in front of Izuku and poking one of his cheeks with a hum. He would never admit it out loud, but he had a somewhat love for babies, I mean, come on, babies are adorable, even if they are gross. “I wish I could’ve caught you playing with him, that would’ve been great blackmail. Denki showed me some photos of Bakugou holding Izuku. Never thought he could be so gentle.” He rambled, smiling softly as he got Izuku to laugh by gently running a blanket over his face.

After some time, Aizawa looked at the time and took out a bottle and held it out to the purple-haired teen, “Would you like to do the honors?” he asked him and Shinsou squinted his eyes at him.

“Do you want me to burp him too?” He received a nod from the tired teacher and smirked again, “Why? So I can get spit up on?”

“Yes. I don’t have any back up shirts and I wear all black. White throw up on a black shirt is very noticeable.” He concluded. “And I’ve got papers to grade anyways.” He added.

Shinsou shrugged indifferently, grabbed the bottle, warmed it up, and awkwardly picked Izuku up before sitting down in a chair. He could see the hunger in Izuku’s eyes as he started to give him the bottle and chuckled as the infant practically chugged down the warm formula.

“When is he going to turn back?” He asked Aizawa, draping a small towel on his shoulder and starting to pat Izuku’s back gently.

“Who knows, though Recovery Girl stated that he shouldn’t be like this for more than a month at most, he might turn back tomorrow. We don’t really know.” Aizawa explained, “And pat him harder.” He instructed, smirking when he heard Shinsou begin to pat Izuku’s back even harder.