The submissive, bound and gagged, is ordered to masturbate by his mistress, who watches with a mix of disgust and arousal. He tentatively starts, his cock growing hard in his hand, eyes locked on her commanding figure. She taunts him, telling him to go faster, harder, until he's panting and on the edge. Then, cruelly, she makes him stop, leaving him teetering on the brink. She repeats this cycle, each time bringing him closer to release, until finally, she allows him to cum, directly into a glass she holds up. She makes him drink every drop, smirking at his debasement.