Stiles arched his head back, exposing his neck, when Derek started to kiss and nip at it again. Yes, he definitely would have marks come morning and Stiles would wear them with pride.
There was a breathy groan when Derek reached down and stroked his cock. It caused his hips to buck and a whimper to escape past his lips. "Oh. Good, good. Because I'm definitely a guy. Oh god." Stiles moaned as Derek's mouth travelled down his chest and bit at his nipple. "Fuck."