When beautiful but rebellious 18-year-old Maddie disobeys her strict, sexually conservative parents by wearing a revealing G-string bikini to the beach, she is spanked and paddled nude not just by both parents but by her siblings as well, including her younger sister, Renee. Later, however, the tables are turned when she catches Renee in a compromising position with her boyfriend and persuades her to take a spanking from her instead of telling their parents what she was up to.

Subsequently, Maddie comes to realise that the idea of being spanked by a guy her own age is a really big turn on, and this leads her to join a spanking forum where she makes contact with Seth. Things move quickly and it's not long before she's over Seth's knee for a spanking that she actually enjoys, as well as what comes naturally afterwards...