Nina Nova tries on a new leotard for gymnastics, and her stepmom, Penny Barber, is unexpectedly aroused by how great it looks on her. Nina innocently asks for Penny's help with stretching to make sure the leotard doesn't rip or bunch and, after brief hesitation, Penny agrees. But as Nina stretches with Penny's help, Penny becomes more and more horny. Nina eventually notices and becomes cheeky, making the stretches even sexier until Penny finally caves and they have lustful sex!