Karen, in a mood to educate, corners her naive stepson Trevor in the hallway. She explains that a good education includes knowing one's body and that of others. With a sultry smile, she leads him to her bedroom, locking the door behind them. She teaches him about desire, showing him how to touch her breasts and pussy until she's dripping wet. Then, she guides his hard cock into her, teaching him the rhythm of fucking as she moans in pleasure, leaving him a changed, well-educated man.