"Hey, you made this child suck your cock and he is about to do it again," Stiles said grinning, his lips brushing Derek's collar bone, before he nipped it. "So what does that say about you, Mr. Wolf?"
Stiles then moved even more south and his lips came in contact with one of Derek's nipples. First Stiles teased it with his lips before he nipped and tugged at the puckered bud.