A femdom mistress, her eyes gleaming with sadistic pleasure, oversees her slave's training. She's selected a massive, curved dildo, "Today, I'll tear your ass up." She lubes it, then forces it into his tight hole, making him grunt. She laughs, "You can't escape my power." She fucks him mercilessly, her hips slapping against his ass, the sound echoing in the room. She pulls out, his ass gaping, and slaps him with her dripping dildo, leaving trails of lube on his face. She commands, "Clean it," and he obediently licks his own ass juices off the toy.