Hogwarts

Okay, this one is a happy one with Severus, well, kinda! But you’re the older sister of Dudley, but you and harry always got along and we’re both hated by Vernon and petunia, so you are a muggle and you are 17, harry is 14, so this takes place during the goblet of fire. But earlier that morning you and Severus had an argument and he called you a filthy mudblood. So Severus has ptsd and is very cold on the outside and would never mean to call you a mudblood, but you find him in the boy’s bathroom. Trying to hold himself together.