Written for the prompt: Scott and/or Jackson come over to see Derek and find Derek and Stiles fucking (the rougher, more animalistic, bitey, knotting, etc the better). Scott/Jackson end up secretly watching them, getting totally turned on and jerking off. Bonus if Derek is totally aware they're being watched and puts on a show (preferably, with Stiles unaware).

Nolan knew that - eventually - he’d either have to give up his summer routine or bring Travis in on his secret.