Penthouse: The All New Pet Workout (1999)

Let’s get physical! The most sensual bodies in the world show you how they stay in shape. Get ready for a steaming-hot, muscle-building, action-packed all-Pet workout that is guaranteed to make you sweat. Watch as these beautiful babes crunch, pump, push, and lift their bodies into shape. Our gorgeous models give new meaning to the word fitness and challenge you to keep up with them. Oh, and by the way, remember that sex is still one of the best ways–and certainly the most pleasurable way–to keep in shape! Time to feel the burn!