"At least I have a mum," Malfoy shoots back. Harry slaps Malfoy’s arse sharply in retribution and Malfoy jerks away from it, but then lets out an unmistakable moan. Harry pauses. Last time, he thought maybe he’d misread Malfoy’s reaction to the slap. The memory practically lives in his Pensieve – how his eyes had gone wide and a little cloudy. At the time, Harry thought it was fear, anger, but clearly –