Kneeling, hands bound behind her back, the submissive slave gazes up at her stern mistress. Her mouth, however, is not bound. The mistress, sadistic and hungry, teases her slave with a teasingly close hard dick. She smirks, pushing the slave's head forward, commanding, "Suck." The slave obeys, her lips parting, taking in the throbbing cock. Meanwhile, a vibrator buzzes against her clit, keeping her aroused and distracted. She sucks diligently, her tongue swirling, her head bobbing, as the mistress watches, pleased.