The slow start was good. It gave him a change to get used to the feeling. The thrusting was different coming from a machine than another person. He could definitely feel the power.

His hips moved in circles, riding the thrusting toy like he would another man. His range of motion was smaller with the restraints on, but he did the best he could. Soft moans and gasps escaped him as he found a rhythm and settled into it.

Eyes still closed, his head tipped back and he groaned again. Wished he could touch himself, but Nathaniel made sure that he wouldn't be doing that. Kind of a turn on, really, to know that his eventual pleasure would either be at Nathaniel's hands or because he was fucked so completely by the machine that he came without being touched.