It's the height of summer, and humanized Twist is heading out to a remote swimming hole. Once she gets there, she discovers a couple of boys have beaten her there. They're skinny dipping. Twist decides to take off her clothes and join them for a dip.
Fluttershy may be a timid lovable pony on the outside, but she has a more sinister secret. Fluttershy lives a double life as a professional dominatrix. She finds pleasure from the humiliation and whippings of another pony. What happens, though, when her secret leaks out to her friends? Hilarity and saucey encounters ensue.