In the gym, a blonde teen Mistress spots a new girl, muscles gleaming, and decides to introduce her to her world. She marches over, her big ass commanding attention, and orders the teen to stop her workout and follow her. In the locker room, she commands the teen to strip, revealing her own powerful form. She makes the teen worship her, licking her sweat, kissing her toned stomach, then forces her to her knees, smothering her face in her big ass. She makes the teen lick her pussy through her shorts, then orders her to fuck her, hard, in the gym, making her a true gym sex slut. The teen, humiliated but aroused, obeys, her muscles contracting as she pounds the Mistress' pussy against the weight bench.