He pulls back, slowly setting on a rhythm that gradually builds, watching Stiles as he does so and this really isn't as difficult as he thought it would be. Stiles tastes like him, or at least not too differently from himself. Salty, a little bitter, but it's not nothing Derek can't handle. Its a much better taste than a lot of things he had tried in his wolfy childhood and one he really wouldn't mind trying again and again.

He hums around Stiles' as he takes him deep into his mouth before pulling back again, not expecting the teen to hold on much longer and kind of hoping he won't, even with as much as he's enjoying this.

Derek's pretty sure this will lead into another very serious discussion with himself later but for now, this is fantastic.