His father had raped Draco's ex-girlfriend – Draco's friend – in order to turn her into some sort of fucking broodmare who would produce an heir to replace Draco. It was sick. Sick and horrible and Draco wanted to rip the knowledge out of his head; wanted someone to obliviate him so that he wouldn't have to go through every day of the rest of his life knowing that he was his father's son, and all that entailed.