"Fit StepMom" asks StepMom to assist her son by helping him with his big boobs. So, stepmom tells him that she needs a little help because her fat belly makes it uncomfortable for her to perform any of the exercises their fitness video recommends. StepMom is very disappointed, but finds a solution for him. She gets a large pair of curvy panties, and replaces her malnourished belly with a shapely set of rock-hard abs. The next day, her son steps into the bedroom completely disheveled and overweight, and informs his mother that he can no longer perform the exercises on his hard-board because his fat belly makes it uncomfortable..