Shouta smiled as he watched his brother destroy another robot. 52 points.

The three years of training from Shouta, Toshinori (After three years and Toshinori basically becoming Izuku's father, they're on first-name basis) and Toshinori's old mentor, Gran Torino has really paid off.

Izuku did get a head start as he was the only one who ran when the gates opened and no, this wasn't Shouta's fault it was Hizashi who let that slip.

The exam was going well but everyone knew what was coming next. This will truly show who was hero worthy.

Shouta stood back analysing every student. Running, running away.

He wasn't surprised.

...

...

...

...

...

That was until he saw his brother charging straight at the massive robot, knocking it away with a single punch

Shouta facepalmed. Of course, of course, his brother would do that.

Shouta lay his head in his hand for a minute more before looking up. Now he could see why his idiotic brother charged at the robot, to save a girl who was trapped. Of course.

Shouta smiled before walking away.

-A week later-

Shouta stood beside his partner as they stared at the bundle of sunshine called Izuku Aizawa, as he lifted a weight in his hand and stared off into space. The boy had been like this since the exams ended.

"I wish we could tell him," Hizashi whined.
"You know we can't," Shouta answered.
"Yeah, but it's upsetting to see him like this." Hizashi pointed.
"How do you think I feel, he's my brother," Shouta responded.

The two heroes continued to watch Izuku until they heard the light flutter of the mail flap.

Hizashi looked towards his partner, leaning in to whisper in his ear.
"I think it's here."
"Go get it and put the boy out of his misery." Hizashi nodded and headed towards the door to soon return with the letter.

The adults watched as Izuku dragged himself to his room. They were left to wait.

Five minutes later a ball of sunshine came running down the hall and into the arms of his brother and partner.

"I got in! I got in!" Izuku chanted over and over. Hizashi and Shouta smiled, they knew, they always knew.

At one point Izuku activates his quirk from pure happiness without realising it. He lifted both grown men like they were a handful of grapes. Both men were surprised before they laughed with the crying Izuku. Tears of joy.

-April-

Shouta lay sleeping inside his bright yellow sleeping bag. He was getting as much sleep as possible before he had to meet his new class of brats.

He felt someone poke his right cheek softly.
"Shouta," Hizashi whined.
"What," Shouta grumbled back.
"You have a class you need to get to." The cockatoo poked.
"Let me die here," The black cat responded.
"Nope." Hizashi said, popping the 'p'.

Shouta then felt himself being lifted up. Turning his head he could see the smiling face of Hizashi.
"Come on you sleeping caterpillar, you've got a class!" Shouta sighed and let Hizashi carry him to classroom 1-A.

After a little while in Hizashi's arms, he felt a pause.
"Sounds like your class in here," Hizashi whispered. Shouta could hear the chatter, this will be fun.

Hizashi silently put down the overgrown caterpillar without being noticed before leaving.

Shouta let the three students finish talking before he himself spoke.
"Go somewhere else if you want to play at being friends." Shouta groggily spoke, still half-asleep.

Shouta then found himself wide awake when he saw who the middle student was, Izuku Aizawa. Nezu has placed his brother in his class.

Shouta understood why. He was one of the few teachers to fully know about Toshinori's quirk, which meant Izuku's quirk. Doesn't mean he'll go easy on him.

He watched Izuku's face go from shock to amusement just as the two other students noticed him.

"This is the hero course." Shouta unzipped his sleeping bag a little to suck on his juice pack he had. As he drank he watched the faces of the brown and blue-haired students morphed into horror but his brother tried to suppress his laughter.

Shouta got himself up and began to unzip his sleeping bag.
"It took eight seconds before you were quiet," Shouta spoke as he stepped out of the caterpillar suit. "Time is limited. You kids are not rational enough."

The children's faces still expressed absolute shock except one. That one was fighting his laughter.

"I'm your homeroom teacher, Shouta Aizawa." Shouta's eyes washed over his class as he held his sleeping bag by its head.

Every one of them had a mixture of shock, horror, and fear. Except for Izuku.

It was silent for a minute before Izuku lost his battle with laughter.

His classmates were left perplexed as to why the small green boy was dying from laughter.
"Aizawa, this is no-" The blue-haired boy froze mid-chop, realising something.

"Izuku, could you not die on me on the first day," Shouta asked.
"S-sorry, I-it's just, you, you ac-actually use it," Izuku said, wiping tears from his eyes.
"Of course, comes in very handy." Izuku nodded, a large grin plastered on his face. "Now put these on and go out into the field." The man reached into his sleeping bag and pulled out a P.E uniform.
"Ok, Mr. Aizawa." Izuku smiled.
"No, don't call me that, it sounds weird coming from you and that it makes me feel so old when you say it," Shouta complained.
"Ok, Brother dearest!" Izuku grinned.
"Stop that," Shouta grumbled.
"Nope!"
"You do realise teasing me will not get you anywhere, I'm going to go easy on you," Shouta warned.
"Don't," Izuku responded.

The little lamb and black cat turned towards the class. Being greeted by a myriad of confused faces and a very angry Pomeranian.
"I think they want an explanation," Izuku said. Shouta sighed.
"My name is Shouta Aizawa, this problem child is my brother Izuku Aizawa. Now get changed and get onto the field." With that, he left.

Shouta smiled. This was going to be a fun year.

-Bonus-

"You better hurry up, don't want to be late for Nezu's lesson," Shouta said.
"He's been teaching me for two years, I think I know," Izuku responded. "Though, I do have a question."
"Shoot but be quick," Shouta said, taking out a juice pack.
"How did you get to the classroom in your sleeping bag?" Izuku asked.
"Hizashi carries me." There was a pause before Izuku was on the floor laughing.

The End

And that's is the end of 'Big Brother Shouta' I can't believe it's over. Sorry for the late upload, my family decided to have an improve outing, forcing me along but here it is. You have no idea how much I had to fight myself to keep the Chapter on schedule and not post it Early. I don't plan on making a sequel but I might write some one-shots set in this au, I don't know we'll have to see. Thank you to everyone who read this silly little au I wrote out and left comments. Thank you. Anyway, hope you enjoyed.