Derek mutters a curse under his breath because oh dear god, Stiles is an amazing kisser. Each little lick draws a noise from Derek's throat, arousal sparking like electricity up his spine.

But Stiles is the one who's supposed to be teased here. So he flips them over and spreads Stiles out beneath him, fingers twining with the teen's to pin his hands back against the mattress as he fucks into Stiles' mouth with his tongue.