In the gym, Cory Chase is using a weight bench to sit while she lifts weights. They strike up a conversation as Rebel Rhyder, her step-sister, enters the gym. It doesn't take Cory long to get to her feet and encircle her step-sister in her arms. Cory pulls up her t-shirt to reveal her enormous tits as she starts to kiss Rebel's mouth. After removing her own shirt, Cory raises Rebel's shirt as well. Cory starts feeding her tongue to her step-sister's nipples. Rebel strips down to her underwear and spreads her legs out on the weight bench. Rebel begins to finger her own privates, but Cory intervenes and kills her. After that, Cory lowers her shorts and assumes a doggie posture on the weight bench. Turning onto her back, Cory extends her legs in greeting to her step-sister. Rebel finger her and sucks her pussy out all at once. The two MILFs assume the scissor position and massage their clits against each other till they both cum once more after Cory cums.