You had known Draco since you two were babies, your father was Voldemort, so since Lucius and Voldemort were best friends, they had hoped you and Draco would become friends and maybe something more. You and Draco became enemies in first year, though. You guys shared a dorm now

You and Draco were on his bed, slapping and punching each other’s arms and faces to see who would get the shower first. While you guys were fighting, you accidentally fell on top of him and straddled his lap