A slave's ultimate surrender: prostate milking until the very last drop. Bound wrists and ankles, he's spread-eagled, his ass presented for his mistress's pleasure. She teases him, running her fingers along his crack, pressing against his tight hole. She inserts a thick, cold dildo, twisting and pushing deep until she finds his prostate. She works it, rubbing and pressing, drawing out his seminal fluid. His cock twitches, desperate for release, but she denies him, milking him until his balls are dry and his cock is sore, leaving him gaping, empty, and thoroughly used.