"The world doesn't revolve around you, Malfoy," she said cheerily, leaning over him and looking at Zabini across the table. "I'll buy you a firewhiskey at Hog's Head, Zabini. You like firewhiskey, yes?" As she spoke, she had been secretly working her fingers at the back of Malfoy's neck, stuffing her damp knickers into the collar of his shirt.