Mazzy Grace, a slim blonde with small perky tits and visible arm tattoos, starts by straddling her bound personal trainer on the gym floor. She strips fully nude, teasing his thighs with her feet before kneeling beside him and running her hands over his body. Mazzy Grace strokes her own pussy then mounts him, grinding while touching her clit and his chest. She leans down to perform sloppy wet blowjobs on his erect cock, taking him deep with her face pressed close. Mazzy Grace then straddles the trainer again and rides his dick hard in cowgirl, her tight pussy sliding up and down his shaft. Close-up shots show his thick cock stretching her vagina from behind, her anus visible as she bounces. The intense gym sex continues with Mazzy Grace fucking him vigorously until the very end.