A stern mistress, unsatisfied with her sub's lackluster performance, decides to punish him with a humiliating chastity session. She forcefully stuffs his throbbing cock into a tight, unforgiving device, making him beg for mercy. She teases him mercilessly, running a vibrator along his trapped manhood, bringing him to the brink of orgasm, only to deny him release. The frustrated sub whimpers and pleads, but the dominant woman relishes in his torment, promising more sessions of cruel, denial-filled fun.