Derek nodded at Stiles' acceptance and then turned around fully, facing the boy, and moving to stand in front of him. "First. I don't mind if you ask questions. You're learning. But I do mind when you question my judgment, and blatantly disobey a direct order." Which, whether or not the slave was aware, he had just done. Twice.
"Second. You're a virgin--or near enough to it to count--so you'll have to forgive me if, in addition to teaching you how to give pleasure to please someone else, I want very much to teach you how to be pleased, and what brings you pleasure." He reached out, cradling Stiles' face with one hand. "Okay?"