A powerful femdom takes her slave through a rigorous training session, focusing on orgasm denial and chastity humiliation. She orders him to pleasure himself with his hands while she watches, enjoying his squirming discomfort. The device around his cock and balls ensures he cannot disobey her commands, and she uses this to her advantage, pushing him to the edge of ecstasy before cruelly denying him release. She humiliates him further by making him clean her boots with his tongue, all while he's hard and desperate for relief. The scene is shot in a pov style, allowing the viewer to experience the slave's frustration and the mistress's cruel pleasure.