In a dimly lit room, a femdom commands her sub to present himself for chastity training. He tentatively places his hard cock and balls into the tiny cage, wincing as it's locked shut. She orders him to stand, his discomfort evident as he tries to maintain his balance. She circles him, running a finger along the cage, taunting him with near touches. She turns him into a human sex toy, denying him release time and time again, until he's a quivering mess, begging for her mercy. She finally relents, giving him a rough, dominant handjob, but ensures he remains locked, his orgasm denied once more.