A femdom mistress takes a slave through a rigorous training session, focusing on orgasm denial and chastity. She begins by locking his cock in a steel cage, then makes him perform a humiliating handjob on her, all while he's denied his own pleasure. The mistress delights in his torment, pushing him to the edge of orgasm only to cruelly deny him, again and again, until he's left a quivering, desperate mess, begging for her mercy.