SCRIPT: It is the mother's birthday and the son has told her that he has a "special surprise" planned for when he gets home from school. The mother has been excited all day, getting all made up and putting on a sexy dress and maybe decorating the house with candles, etc. She's expecting a romantic night, maybe a dinner date and night of passionate love-making after. She is then surprised when the son brings home a classmate he describes as his "girlfriend." He says that he's been wanting to fuck the girlfriend for some time and she's finally agreed to come home with him. The mother, now feeling humiliated and deeply hurt for getting all dressed up, is still desperate to please her son, so she pretends to be supportive. The son expresses gratitude, because he wants his mother to watch him having sex with the girl. The "girlfriend" is just as shocked, but is also submissive in nature. The "meat" of the scene will involve the mother being to watch her son slowly seduce his young classmate. She offers several times to "help out" and comments on how nice it would be to "join in," but the mean-spirited son tells her to "back off" and "just sit there and watch." The mother is still hurt but finds herself turned on by the sight of her son seducing another girl and by the way he takes control of both of them. Eventually, she is allowed to touch herself and blow her son to get him ready for his "girlfriends" virgin pussy. She finds herself instructing the girl how to please her son, telling her to not resist and to take whatever the son wants to do to her. Finally, she's allowed to join in, getting fucked by the son and triumphantly telling the girlfriend "See, THIS is how it's done. This is how you please my boy." The son has a final cruelty planned, however, as he pulls out just before the mom is able to cum so that he can creampie the girlfriend. The mother is envious but also deeply turned on. The scene ends with her narrating how her son cums in the girl and how great it must feel to be "filled up" by him.