In this intense BDSM encounter, a stern mistress trains her eager slave to obey her every command. With him securely bound and gagged, she teases him mercilessly, bringing him to the brink of ecstasy but denying him release. 'You will not cum until I say so,' she orders, her voice laced with power. She alternates between caressing his hard cock and slapping it, her eyes gleaming with sadistic pleasure. The slave, desperate for her approval, struggles to maintain control, his body trembling with effort.