At Stiles' confession there it is again, Peter wonders, the rush, the power. He could feel it from Stiles, from his spark. And if Peter is turned on by anything it's power. He's howling inside, his whole body is aching to turn and to claim to hunt and kill... to show everyone he is the Alpha.

"You were powerful, Stiles." he growls, his eyes flashing up red again. "You have the right to like it, to make it yours." his words are half moans, half growls as he's taking out his fingers and pulls Stiles closer by his thighs.