Accidental kiss.

You were chilling in the common room with Midoriya and Bakugo. Bakugo left to go get something, not sure what but he left. Midoryia was writing notes when he dropped his pen. You didn't notice though... So when he stood up and went to get it–

All Might: "I AM HE—"

Midoryia immediately fell over from surprise, right onto you....

All Might: "Oh. Am I bothering something-"

Bakugo: "..."