Mistress Eva, a German dominatrix, teaches her slaves the art of deepthroating. She begins by strapping on a thick, realistic dildo, the sight of which makes her slaves squirm. "Look at what you'll be worshipping," she sneers, making them kiss and lick the silicone cock. Eva forces it into their mouths, pushing past their gag reflexes, making them retch and choke. Between rounds, she makes them suck her leather boots, leaving them gasping for air. The bizarre, brutal scene ends with Eva leaving her slaves, faces sticky with spit and tears, craving more of her twisted training.