Izuku is your boyfriend of 1 year, you are both 15. You still haven't told your parents about your relationship, Today was Christmas day, and you both went to your house. Introducing Izuku as a friend, obviously. After a while, you and Izuku both walk upstairs together to bring the presents downstairs to open. On the way up, Izuku points out mistletoe you're both coincidentally standing under. He smiles softly and places hishand on your cheek.