The filthy secret affair between Stiles and Derek had only gotten more intense over the last few days.

Every chance they got, they were on each other. Quick, rough fucks in the laundry room while Lydia was cooking. Stiles sneaking into his room at 2 a.m. and riding him until she had to bite his shoulder to stay quiet. Derek bending her over the bathroom sink in the middle of the day, one hand over her mouth while he pounded her from behind and whispered, “This pussy is mine when they’re not looking. Say it.”