Chapter Text
It was a peaceful night, Izuku was was on a nightly patrol around the city and UA with Aizawa Shota, His Teacher at UA, This was Izukus first patrol with the man.
When Aizawa first came up to him in school asking if he wanted to help him patrol Izuku could say could not say no, this was such a great opportunity. And to be honest, Izuku sees Aizawa as a father figure, considering Izuku never grew up with a father.
Though yes Izuku has All Might, but All Might can't compare with Aizawa. Aizawa was there with izuku through his journey through UA, and now here he is patrolling with him.
They were leaping from building to building looking around below them to spot for anything that doesn't seem right, when from the corner of Aizawas eye, was a villian, he had just robbed a grocery store.
Aizawa signalled for Izuku to follow him, and said man did, they leap down to the ground infront of the villian cornering him.
Aizawa stepped forward in a fighting stance
"Give up Villian"
He shouted
"Theres no we're to run"
He said just as he grabbed his capture weapon, getting ready just incase the villian were to run for it.
Izuku on the other hand was also in his fighting stance, he powered up afo,
The Villian laughed at them, making Aizawa and Izuku confused for just a second, when suddenly before aizawa could use his quirk, the said villians hands glowed a light green colour, one minute they were looking at the villian, and then the next they were on the ground, unconscious.
It seemed it hadn't been to long since they fell unconscious from the villians quirk, but when Aizawa opened his eyes again he was gone.
Aizawa tried to stand up, but ultimately failing and falling over again, he tried to reach his hand up to his head, and to try and refocus his mind, when suddenly he realised he can't.
He looked down to were his hands are suppose to be, when all of a sudden he sees paws, black furred paws.
Aizawa tired to remember what had happened. The villian he and Izuku were after must have had some kind of animal quirk turning Aizawa into some kind of cat? He guessed.
/Wait, where is izuku/ Aizawa thought, he tried standing up again, and tried searching for his student. It felt weird having to walk on all fours but it was surprisingly not that hard. Aizawa tried to scent for izuku to see of he can small him near by, and thankfully he was. Aizawa followed izukus scent till he found him under a cardboard box.
Aizawa removed the box with his snout, and what he saw was undoubtfully a panther Cub, but said panther was a dark shade of green. The cub started to stir, his nose twitching which Aizawa thought was cute.
Aizawa assumed the cub was awake even though his eyes weren't, he wanted to assure his student they were alright.
The cubs nose twitched again, pointing in Aizawa direction
"A-Aizawa sensei, is t-that you?"
He asked, nervously
Aizawa moved his snout down to the cub, Nudging the cubs Cheek to reassure him.
"Yes, it's me problem child"
He reply to the cub, he was surprised, in one ear he can hear what he is saying just fine, but in the other ear all he can hear is chirps from him and the cub, /I guess it's apart of the quirk/ he thought.
"S-Sensei where are you, Why can't I see anything"
He asked again, sounding a bit scared this time.
Aizawa reassured the cub, grooming his ears a little and chirping back in response.
"It's because your a panther Cub Midoriya, and by the looks of you, you seem to be atleast a couple a days old"
He chirped
Izuku didn't say anything in response but chirped back to let aizawa know he understood what he said.
Aizawa wanted to take his cub back to UA, were it would be safer, and yes he said his cub. He gently grabbed behind izukus neck were is scruff was, Izuku instinctly lifting his legs up.
He started off a slow pace, keeping one eye on izuku, and the other on where ther were going, it took a little bit but the made it to UAs gates, he dropped izuku down gently and jumped on his hind legs to put his front legs onto the wall with the buzzer, he pushed it with his snout and await for someone to answer.
Unfortunately no one did answer the buzzer since it was night, so he had to wait it out, he looked down to were the cub was, Izuku was curled up in a ball shaking, most likely because it was cold.
Aizawa moved behind izuku and gently laid down, moving the cub and rest against his stomach fur. Aizawa rested his head on his paws and rested his tail around Izuku, instantly falling asleep.
~~~~~~~~~~~~
Aizawa felt something prodding into side, he thought it was izuku so he was bothered by it, but the prodding happened again, so Aizawa opened his eyes to see Nezu standing infront of him.
Aizawa wasn't sure if Nezu would understand him, but he wanted to try anyways.
"Uhh, Hi Nezu"
He huffed
"Good morning Aizawa, I see you got yourself into a bit of trouble"
Nezu replied with a smile. Just as Nezu had arrived, little chirping noises can be heard. Both aizawa and nezu looked down to the cub that was stirring around Aizawa stomach, Izuku still couldn't open his eyes, but when he heard voices he started to stir against aizawa stomach, waking up, making Aizawa purr.
Izuku gave a little yawn before scenting the air, smelling nezus scent. He perked up at nezu, pointing his snout towards him.
"Is that principle nezu?"
He asked Aizawa, before he could answer his cub, Nezu spoke for him.
"Yes, it's me Midoriya"
He answer with another smile.
"Let's get you too inside before everyone wakes up for class"
Nezu continued his way to the gate, unlocking and opening it before walking inside school grounds with Aizawa and Izuku, Aizawa grabbed Izukus scruff again and trotted next to nezu all the way through the school till they reacted the teachers dorm rooms.
They stopped infront of Aizawa dorm room, Nezu somehow unlocking to door and stepping inside. Aizawa trotted in with izuku and set him down on the scruffy carpet, izuku chirping to aizawa asking what was going on.
Aizawa huffed back saying they were in his dorm room.
"I will let everyone know what has happened to both you and Midoriya, and tell them not to freak out when they see you"
He announced to them
"Aizawa, since izuku can't be left on his own you will have to look after him till this quirk disappears, so you will most likely be spending your time here in your dorm room or out in the common room, as of the food situation, your taste buds have most likely changed so I will have one of the teachers buy you the food that you need, but considering izuku looks to be only a couple of days old, he can't eat solids yet, so I will have a teacher bring him a bottle of milk for him to feed off"
Nezu continued to explain the situation with his class, and that they will have a different teacher for now, and that they will get another room sorted for them. After he explained everything he left the two alone in the room.
Even though it was the system of the day, Aizawa still felt tired, and by the looks of izuku so did he, so aizawa picked up izuku again, Izuku mewling in the process of being picked up, aizawa move over to his bed and jumped up, dinding a good spot to lay down, to dropped izuku gently again on the bed, aizawa having him rest again his stomach and fell asleep.
~~~~~~~~~~~~~~
It seemed to be about the middle of the day when when aizawa woke up, he lifted his head slightly and yawned showing off his big teeth, before looking around them room, he looked down at his paws again, forgetting he was a panther still, He was about to go back to sleep when he felt something prodding into side.
He look over to where izuku was snuggled up to him, when he looked at his stomach he sees a couple of little nipples with izukus mouth attached around one of the buds, suckling as milk flowed into his mouth, his front paws prodding inside his side, it was like a little message for aizawa.
Aizawa realised that part of his body had turned into the part of a female, he figure that would happen considering izuku was a cub that was only a couple of days old. Aizawa purred with delight, as his cub fed from him, he wouldn't have mind if someone were to feed him a bottle of milk, but if felt wrong of other people coming near him and his cub, like he would attack anyone who opposed a treat to them.
He groomed the cubs head, Izuku stirring from the action, letting go of the bud, a bit of milk was left sitting around his snout. Izuku realising what he did and hot embarrassed, trying to move away from aizawa, but he was stopped has aizawa pushed him back with his paw, purring and chirping to him, telling him it was alright.
"Calm down problem Cub"
He chuffed
"Eat if you still hungry"
He said, Nudging izuku back to that same bud, but izuku stopped and shook his head, as in saying he didn't want any more. Aizawa sighed, well at least how a panther would sigh, and rested his head back on his paws, izuku doing that same and snuggled closer to aizawa, giving a cute little purr and fell asleep, Aizawa doing the same.
When they woke up again it was the afternoon, he realised that classes must have finished, so he decided that he better get to the common room and let all the other problematic children get used to his and izukus new form.
He stood up stretching a bit, his limbs a bit stiff from laying down for so long and gently picked up izuku by his scruff, Izuku stirred a but but didn't wake up, his legs instinctly lifting up. He jumped off the bed lifting head head so izuku didn't hit the floor in the process and makes his way to the door which was slightly open.
Aizawa opened the door wider for him to move out and walked down the hall to the stairs, he thought using the elevator would be a hassle, once he reached the bottom of the stairs he moved to the room that was the common room. Once at the door way he could spot of couple of his students lounging around, Iida and Todoroki where sitting on the couch reading, while Kirishima, Denki, Jiro, Mina and Bakugou where sitting on the floor around the coffee table doing homework, Uraraka was in the kitchen getting something to eat.
When aizawa steeped into the room the first to notice him and izuku was Kirishima, he starred in shocked at him, looking terrified that there were 2 panthers in the common room.
"G-G-Guys, t-t-there are two p-panthers here!!!!"
He shouted making everyone look at him and izuku, everyone else in the room also had shocked and scarred faces, trying to back away from them, when Bakugou spoke up.
"Oh Calm down you extras, don't you remember what Principle Nezu said this morning!!!"
He shouted, making Izuku stir from his sleep from the loud noise but not waking up.
"That's Sensei and Dumb Deku, They got hit by a quirk, Remember?"
"Ohhhh yeaaaaaa, I remember now"
Denki spoke up, calming down, along with the rest of the class.
"Oh my Goodness, look at Izu-babe, he's so cute and tiny!!!"
Mina squealed in excitement, Aizawa growling at her for making so much noise to the point Izuku started to wake up, his eyes still couldn't open but you could tell he was opening from the chirps he was making.
Aizawa chuffing and purring in response to calm him down.
Aizawa made his way over to the couch staring at both Iida and Todoroki, testing them to see if they were ok to leave izuku here for a bit while he went and found nezu to get him something to eat.
They seemed to be safe enough to leave him here with them while he was gone, so the reached up and put izuku on Todorokis right side, the side of his fire quirk, Izuku immediately snuggled up his that side. Aizawa went to Kota who was in the kitchen to tell the students where he was going.
"A-Aizawa said that he will be back in a m-minute, he has to go see nezu, and that only Todoroki is to touch Midoriya, a-and that if anyone where to touch Midoriya he won't hesitate to hurt you"
He said nervously to everyone, everyone nodding in understanding.
It hadn't been long since Aizawa left, Izuku was left alone on the couch asleep, everyone else seemed to be on the floor around the coffee table studying, Todoroki still keeping an eye on him, when Monoma entered the common room for some unknown reason, probably the tease and much fun of class 1-A like he usually does, but when he entered he stopped, looking over to where the couch was looking at izuku.
Monoma had hears that Aizawa and izuku got hit by a quirk but he didn't think it was true till now. He walked over to the couch picking izuku up by his neck harshly. Izuku waking up scared that someone other then aizawa was touching him, he mewled loudly, Monoma was hurting his neck, everyone's Attention was now on Monoma and izuku, Izuku continuing to mewl in pain.
Bakugou shot up from his seat on the floor, am angry expression on his face. His quirk going off in small explosions.
"HEY, FUCKING EXTRA, PUT DEKU DOWN, YOUR HURTING HIM!!!"
he yelled at him his expression getting more angry by the second. Monoma laughed, squeezing his hand around izukus neck, making izuku whimper, a tear shedding down his cheek.
"Oh shut up Blonde, What are you gonna do, it's just a stupid panther cub"
He laughed again, making the rest of the students getting annoyed with him.
"Dude that's Deku-Bro, put him down before Aizawa comes back!!!"
Kirishima yells back to Monoma, getting ready to get izuku from him before aizawa comes back.
Aizawa was down the hall from the common room, he had already eaten when he got to Nezu, just was he was about to enter he heard izuku, mewling in pain and whimpering.
Someone was hurting his cub, /I'm gonna hurt who ever touched my cub, there gonna regret ever touching him/. Aizawa ran back I side the common room, seeing Monoma holding his cub in a tight grip, hurting him, just as he was about to pounce on him, Izuku mewled.
"MAMA!!!"
Izuku cried, tears falling down his cheek in pain.
Izuku calling for him was the last straw before Aizawa ran into the room jumping on the couch and giving Monoma a show of his big teeth, The biggest growl anyone has ever heard, his claws digging into the couch.
It scared Monoma so much that when he saw Aizawa he flung izuku across the room, Izuku hitting one of the back walls near the kitchen, when izuku hit the wall, izuku made such a heart breaking cry, he fell to the floor unmoving Whimpering in pain.
Aizawa watched as his cub was flung across the room hitting the wall in pain before laying limp on the floor.
Aizawa eyes turning back to Monoma, his eyes turning red from his quirk activating, and launch at Monoma, the most angry expression he has ever shone.
Before he landed on Monoma something was wrapped around him, it looked like aizawas capture weapon. Shinso had appeared and used his capture weapon to hold aizawa.
"GO MONOMA I CANT HOLD HIM FOR LONG"
Shinso shouted to him. Monoma running away out through the common room and disappeared.
Once he was gone shinso let him go, Aizawa growling to himself.
Running over to his cub, he crouched down infront of him, Nudging him with his snout.
"IZUKU, WAKE UP, PLEASE!!"
Aizawa chirped, he whimpered when izuku didn't respond the first time, but after another nudge from aizawa, izuku started to stir, Chirping and whimpering when he tried to sit up but couldn't.
"Mama"
Izuku cried, making aizawa heart ache, he didn't want to ever see his cub this hurt.
"Yes, Baby, Mamas here"
He chirped to izuku, giving izukus head a slight groom to assure him.
"Mama, my leg hurts"
He cried again, more tears spilling out from his eyes.
When Aizawa looked down to his legs to see what was wrong he could see his left leg was twisted in a weird shape.
Aizawa grabbed izukus scruff gently knowing it would hurt from Monoma and ran the recovery girls office. Once they arrived recovery girl tried to heal izukus broken leg the best she could, he quirk didn't really work on animals, but since izuku was human it worked a little bit, a least enough to put a cast on his leg.
He nodded to Recovery Girl and left her office heading for the teachers lounge. Once he arrived everyone welcomed him, but giving strange glaces at izukus leg.
Present Mic wad the first to speak.
"Uh Shota, why does Midoriya have a cast of his leg"
He asked aizawa but mainly to nezu who could understand aizawa.
"Monoma broke his leg by flinging him across the common room, he hit the back wall, hurting his leg in the process"
He growl to nezu still very angry with that certain blonde. Nezu related what he said to all the staff that was on the room, all of them giving off sad and protective vibes.
"Awww poor Midoriya, he must have been so scared"
Midnight said giving both aizawa and izuku a sad look.
Aizawa ignored all the other responses from the teachers, only paying attention to his cub who was chirping to aizawa, because he was hungry. Aizawa moved over to the desk that was in the room laying down underneath it, giving them some privacy while izuku fed from him.
He placed izuku down, laying behind him and Nudging izuku towards his stomach to feed him. Izuku latched onto one of the buds and started to suckle, the milk flowing into his mouth, making both aizawa and izuku purr.
Izuku ended up falling asleep in the process, he didn't mind though so aizawa decided to fall asleep as well.
~~~~~~~~~~~~~~
He felt someone poking his head, /what is it with everyone prodding and poking him!!/ he thought. He slightly opened his eyes to see nezu kneeling infront on him, a good distance from him.
"I have a room ready for you aizawa, if you and Midoriya would like to go there, if your still hungry there is a good amount of meat and water I the room for you"
He told him, he thought he should probably go there, it's almost night, and he is tired, so the stood up gently hrabbing izuku in the process and followed nezu to the room he said he had for them.
They didn't have to walk far when they came to a door, this door didn't have any door handle, but some kind of sensor. Nezu made some kind of chirp noise and the door opened, Aizawa figured to was noise activated.
They walked inside, the room was big, there was a spot in the room where there was food and water, a door that leads to outside and in the corner of the room was a big pet bed.
Nezu told them that if he ever wanted to leave the room all he had to do was chirp once to open the door and to chirp twice to lock the door. After he announced that, he left the room to leave them be.
Aizawa thanked him as he left and walked over to the bed to lay down, izuku cuddling up to his stomach to suckle again, falling asleep again, aizawa doing the same.
~~~~~~~~~~~~~
There was a knock on the door, aizawa yawning and standing up, stretching in the process and moving over to the door chirping twice to unlock the door, and then chirping once to open the door.
Who stood at the door way was Present Mic, Midnight, Nezu and the villian at used his quirk of aizawa and izuku.
Nezu tells them they looked through the footage of the grocery shore alley and ended up finding the villian that did this.
Aizawa was a bit upset that he had to turn normal again but they were humans not panthers, so the Villain turned them back to normal again, izuku getting a bigger case for his arm.
After that day izuku would always go to aizawa for help for anything and would seek him out.