Special Exercises For My Stepsister

A muscular gym instructor decides to get his stepsister, Sara Taylor, in shape, since she never exercises. She refuses to join him at the gym because she feels uncomfortable with everyone staring at her, so he becomes her personal trainer and teaches her a workout routine she can do at home. However, between squats, posture corrections, and physical contact, they get so turned on that they end up giving their private parts a workout.