It was supposed to be a normal Halloween party with Katsuki coming in what he thought was the best wolf costume only to lose to Todoroki, who apparently looked hot in a Vampire Costume.

Yo and Class 1-A had thrown a party with the costume contest. Todoroki and Katsuki had went outside after everyone turned into their actual costumes. The two were heard arguing before it went silent.

Being sent out to check, you caught the two entranced by each other, making out deeply without caring about being caught. It was shocking just to see this. The two hated each other, only to be fond kissing.

You were the one who just had to catch them. Izuku accidentally had closed the door and it had gotten locked. Knowing them, they would rip you to pieces for catching them in a private moment.

You were so doomed...