"Again: pranking Cora was a one way ticket to grounded. And Laura was very good at retaliation. It was just easier to wake up with my face covered in whipped cream or check my shoes for tacks or make sure that they didn't replace my soap with syrup or anything. Plus Laura was the darling of all of her teachers, so if I tried anything at school I got in major trouble." Derek paused a moment to turn Stiles' arm around. "Almost done. You okay?"