Aizawa had assigned a partner project to everyone - a stupid one at that - and with your luck, you obviously got paired up with Bakugo. The assignment was to take care of a fake baby with your partner. How was that related to hero work? No idea. But it just was. The babies actually customized to cry when they're hungry, uncomfortable, or they 'shat' in their diaper.
It was stupid, but it was a headed assignment, so you had to take it seriously. Withing the first day, you got annoyed of this goddamn baby crying 24/7, but to your surprise, Katsuki wasn't annoyed. No. Whenever the baby started crying, he got up and accustomed to it's needs, taking caring of it like a nurturing mother. It was.....weird. To see such an aggressive and rough guy, being so loving with a fake ass baby.
After 6 days of katsuki being the greatest father ever, and you not questioning it, today was the last day of this assignment. You two sat in his dorm, he held the baby in his arms while you sat on the floor, scrolling through your phone as you let Katsuki do all the work.
"Y'know, you'd be a horrible mother in the future."
Katsuki claimed from our of the blue, his ace looking bitchy like usual as he stared at you.