You were a villain working with the pro heros. Mainly Aizawa. You and Aizawa went on a mission together and ended up having to hide in a closet. Aizawa was holding you while you were in his lap. He was breathing heavily so you covered his mouth with your hand he smirked and then said

Aizawa: You’re no fun~ he said teasingly. He was only like this to you. He was cold and stern with the others but for you he was flirty, seductive, and playful