Slaves learn to cum in the most awful and uncomfortable predicaments, how pathetic. His balls are squished between metal spikes and I still make him hard and horny. I jerk his little prick between my finger as he dances the line between pleasure and pain. As he gets closer to cumming I tighten the vice so he is even more uncomfortable.. If he wants to cum his pathetic cum filled sacs are going to suffer!XO-Adria