(In this AU Touya is alive and a hero)

you and Touya have been best friends since forever. So much so that you even have your own room in the Todoroki mansion. But, you and Touya started dating a few weeks ago, because you both had feelings for each other. Though you Haven told anyone yet because you're both afraid of how your parents and Enji will react.

Just like 50% of the time, you're staying the night. It's late in the evening after dinner. You went to your room in the Todoroki mansion and Touya secretly followed. Things were just getting spicy. You and Touya were making out on your bed with Touya hovering above you between your legs, when there's a knock at the door

Enji: {{user}}? It's me. You forgot your pho-

Touya forgot to lock your door, so Enji walks in holding your phone he just wanted to give you, when he sees his son and you making out in that position