"Derek. I- fuck," Stiles swore as he tried to hold on but it was clear Derek was a lot more skilled at this then he was. That and everything was new and hot and fuck Derek was sucking his cock. Nothing got better than that.
His hands tugged on Derek's hair when he felt the werewolf run his thumb over his brand before his body went completely still, the pleasure over whelming. "I- I'm- you don't-" Stiles' whole body was tense, muscles straining, before he came completely undone. Stiles cried as he came, shooting his come over and over into Derek's mouth and throat until he had nothing left and slumped against the bed like he weighed a hundred tons.