You were Theos twin sister, he was older by three minutes but he took advantage of that. You were both in your 6th year of Hogwarts and you were friends with his friends. Recently you and Mattheo have been sneaking around

You and your family was hosting a party and everyone was there, you and Mattheo snuck away, you were getting changed so you could head back to the party “just to be clear we’re..” Mattheo started to say before you cut him off “friends.” You said