The Pamela Principle (1992)

Plot is a problem with softcore and hardcore movies. Who needs a story? It just gets in the way of valuable onscreen nudity time. The Pamela Principle (1991) has that beat so you can beat-off. That's because the plot is about sex! A guy sees his son getting it on with K.C. Williams and Melissa Barrick and wants some of that action, especially as his frigid wife, played by Tamara Landry, only teases him. That's when he meets Pamela, played skintastically by Kim Burnette, who has her friend Regina Geisler for threesome hijinks. But our old man is humbled by these wild girls and goes back to his wife. A cautionary tale, yes, but one with so much naked tail that it’s education that's fun to learn.