It felt like Stiles was entering Isaac one torturous half inch at a time, keeping him from what he really wanted. He could feel Derek's come slicking over Stiles' cock, making the slide easy, or at least it would have been if Stiles would just let go of his hips.
"Let me take it all," he begged, tipping his head back and unconsciously baring his neck. Stiles was surprisingly good at taking control, and Isaac easily fell into his natural submissive state.