It's a Good Plan (and it Almost Works) (слэш)

Stiles walks in on Derek having a wet dream and can’t quite manage to tear himself away.
He’s magnificent. Stiles takes in the smooth planes of pale skin stretched over muscle and bone, the powerful strength of Derek’s body evident even in sleep. His nipples are tight in the chill of the early morning and the rippled cut of his abs shift as Derek stirs again, hitching his hips restlessly. Stiles’ gaze moves lower still and oh, okay. Fuck. Derek’s definitely having a dream that’s more of the good variety than the scary.