His adult stepsister does yoga and stretching at home every day to lose weight. When she asks him to help, the close-up view of her hard nipples and sharply outlined camel toe gives him an instant erection. She pretends not to notice, but soon her breathing grows heavy and sweat and pussy juice soak through her workout clothes. Unable to hold back, he pulls down her pants, penetrates her raw from behind, pounds her hard, and gives her repeated creampies.