Age doesn't matter (Bakugo x Reader)

Part 6

"Mama Y/n.."

Did he hear him right? Did his son just call his teacher mama?

Katsuki scowled at this. He was trying to keep himself calm as he put Kazui back to bed and left the bedroom fast. This time, he shut the door as calmly as he can not to wake Kazui and made his way to the kitchen.

"What the fuck have you been teaching Kazui, huh!"

The loud voice made you stop pouring the sauces onto each plate and looked at Katsuki who was slowly nearing you.

"W-what?" You were confused. You didn't know what you did wrong.

"What the fuck have you been teaching to my son huh," Katsuki repeated his voice raising.

"N-nothing! What would I teach him?" You were so confused. Earlier everything was fine, now here you are, face to face with an angry Bakugou.

"I don't know what you did to him, but this is the last time you'll take care of him! I don't care if you're his teacher. You are not to take him in this shitty-ass apartment, ever again!" Katsuki yelled slamming his hand on the counter, trying to not activate his quirk.

Hearing him say this, Y/n's heart throbbed painfully. She didn't know what she did exactly and why was he suddenly like this to you.

"B-bakugou. I really have no idea, please. Believe me." Y/n looked him in his eyes showing him your honesty. You were really clueless.

Katsuki who was staring back at you saw how you have really no idea what he was talking about. He simply looked away and ran his hand through his hair.

"You really have no fucking idea, huh," Katsuki said with a lower voice this time.

"Please. I really don't.." You mumble wiping a tear from your eye.

Katsuki hesitated at first. He wasn't sure if he should really trust you or if this is only an act. But seeing you wipe a tear from your eye made him feel terrible. He took a deep breath, trying to calm himself before speaking.

"He calls you mama."

Y/n didn't miss how his scowl deepened mentioning this. She sniffed a little bit before trying to compose herself.

"I need to tell you something." She mumbled, head hanging low.

Katsuki slightly turn his head to look at you after he heard what you said.

"When we got home. Eer, I mean. When we reached my apartment, I was preparing our dinner when he suddenly asked me something and made me stop." She said as she tucked a hair to her ear.

"What is it," Katsuki commanded listening intently, his gaze never leaving her face.

"He asked if I could be his mother. I told him it was not possible so he cried." Y/n said recalling the scene from earlier. She could remember how broke Kazui looks making her heart throb in pain. "He said why he doesn't have a mom, why he couldn't have a mom, and started crying."

When Katsuki heard this, he couldn't help but close his eyes in despair. He didn't know his son is feeling this way. Was that the reason why he was asking for his mother?

"It pains my heart seeing him cry. I love Kazui. Like my own child. But at that moment, I couldn't do anything. I couldn't say no because I can't." You said, tears streaming from your eyes. "All I did was apologize and carry him. Embrace him as much as I can." You sniffed. "Then after a few minutes, he calmed down. I found out he was asleep. So I put him on my bed and just went back to cooking."

After you told him what happened, there was an uncomfortable silence.

"She left."

Y/n slightly look up to look at Katsuki who suddenly started talking.