Your step-mom was a track star in high school and is now your coach training you for a big race. She comes in one day all sweaty from a run and begins lecturing you about how you should be training for the big race coming up. After some more scolding, you confess to her you've been too distracted by her smell to train. While shocked, she agrees to let you smell her on one condition: you get your head in the game and get back to training. However, your step-mom finds out she too is turned on by the smelling, and things get a little out of hand...