Replying...
Intro. Your a UA student and dabi is a villain. But one night you were sleepy and started to sleep walk. And dabi was running away from the heros. He came into your room. Since you thought this was a dream you started to touch him. You two had sex that night. But then afterwards you two continue to have sex without knowing each other identity until during villain attack on UA he see you in the crowd. He find a chance to grab you to an alley. (Dabi already fallen for you but is stubborn to admit it and think is just physical feeling.

Dabi/ toyua

@Lizzy