As Panteras 275: Sexo na Academia (2005)

Thick black woman with short dark hair and visible back tattoo takes it deep from a muscular guy right on the gym floor. They start in doggy against a weight rack — he’s pulling her hips hard, sweat on her back, full ass cheeks flexing with each thrust. Then she climbs on top, riding slow at first, grinding in circles while he watches her tits bounce. Switch to a 69 on the bench — she’s sucking him down while eating her out, tongues working fast. Later, another angle shows her bent over a machine, dark hair hanging down, taking rough rear entry under bright gym lights. The camera stays tight the whole time, catching every grimace and drip.