He's Mine

Prologue

This chapter (so far) will be the only one told in 3rd Person btw!
~~
(They're 4 according to wiki)

"Enough Kacchan! You've already made him cry! Stop it! I won't let you!"

"So Deku, the quirkless wonder, thinks he can play Hero, eh?"

Izuku was already in tears, but still standing up against Katsuki. He was doing the best he can.

"Leave him alone, Suki." A voice came from behind the trio. Y/N stood behind them, blue h/t hair in a ponytail, with a stern, menacing look resting on his face. (Hasn't come out yet) The kid, to any other adult, would confuse them. Y/N wore a tank top, shorts, mid-shin high socks and blue high tops, with his hands in his pockets.

"Oh yeah?? What the hell are you gonna do about it?" The blonde turned around to face Y/N, along with his friends.

"Suki. Scram." The kid gave his best glare to the blonde, his e/c eyes piercing him. And that's all Y/N had to do, before Katsuki scoffed and put out his flame.

"Fine, you win." Katsuki grumbled, a blush forming across his face, then him and his friends walked away, his friends in shock from how easily their friend got defeated. Y/N waited until they were out of sight before rushing to his brother and that kid he was standing in front of.

"Are you okay? Are you hurt?" Y/N put his hands on his brother's shoulder, making sure he was okay.

"I'm fine, Y/N. Thank you." Izuku said, whipping away his tears. "I tried, I really tried Y/N" The boy shuddered out a sob before collapsing into his twin's arms.

"I know. It's okay."  Y/N did his best to consul Izuku. "C'mon, let's go home, okay? Let's see what Mom made for dinner."

"O-okay."

"Let's go." The older twin pulled away and gave him a smile, ruffling his green hair.

~~
(They're going to be around 8? ish)

"Mom?" Y/N peeked through the door to Inko's room. It was late, way past the twin's bed time, although, Inko was still up.

"Yes, sweetie, what's up?" Inko looked up from what she was doing and gave Y/N a smile, as he walked over to her bed and sat on the edge of it.

"Mom, I-I have to tell you something."

"What is it sweetie?"

"I-I think that I'm a boy. I feel like a boy, Mom."  Inko looked at Y/N, he seemed embarrassed. Ashamed.

"Honey, it's okay. I will love and support you no matter what." Inko smiled and opened her arms so her son could give her a hug. "I'm here to help you with whatever you need."

"Okay, Mom, thank you."

- The Next Morning -

Y/N was still fast asleep when Izuku arose to greet the day.  Inko was already awake and was in the process of making breakfast for her boys.

"Good morning Mom!" Izuku yawned, before giving her a hug with a grin on his face.

"Good morning, Izuku. Sleep well?" Now would be the perfect time to explain what's happening with Y/N.

~Inko explains, I'm not writing that out right now~

"Oh?" Izuku sat there with a slight confused look on his face, before smiling. "I get it! Y/N, he's a boy in a girl's body!"

"Yes, that's what you're brother is going through right now."

"That's okay! I love him! I want to help him!" Inko smiles and ruffles her son's hair.

~~
(They're 12)

Y/N sat nervously on the table in the doctor's office. Izuku and Inko sat in chairs next to the table. Both were excited, although Inko was extremely nervous as well, she tried her best to hide it from her sons. Y/N tapped his foot nervously against the table. No words were exchanged, but Y/N's nerves were obvious. Then, a knock was at the door, and the door opened. It was a nurse, she was smiling, holding a tray with a needle and a small canister of liquid. Y/N's face lit up.

"Hello." The nurse greeted them with a smile. Inko stood up as the nurse explained how to prep the needle and prep the leg and all that yadda yadda. Y/N sat there, exchanging glances with Izuku. Izuku was giving Y/N reassuring looks, which was helping Y/N slightly. The nurse then turned to Y/N.

"Y/N, for this, it is very important that you don't tense your leg, your leg needs to be relaxed. With your leg relaxed, the shot will go a lot easier." The nurse said with a smile. "Can you lift your short. leg?"

"Mhm." Y/N mumbled, pulling up his shorts leg.

"Okay, so the alcohol swab is going to be cold." The nurse ripped open the package and started rubbing Y/N's thigh. "Can you make a muscle for me? Thank you." The nurse proceeded to explain to Inko how to do the shot. Tears started to well up in Y/N's eyes, as the anticipation built up. Izuku noticed and sat down next to his elder twin and put out his hand, offering it to Y/N to hold, which he gratefully took. Y/N took a deep breath and whipped away his tears. "Can you relax your leg, Y/N?" And with that, the shot was over.

~~

Aaaand that's a wrap on the first little bit of this story :)

Word Count: 913

Hope you enjoyed~
-oliver <33