A "sweet sixteen" party ends up with him deflowering his daughter and her best friend, and screwing another teenager that weekend. In the second chapter, they all join a swinger's group for non-stop weekend sex. The third chapter features their latest member, a fourteen-year-old nymphomaniac with a sordid past as a "sex slave" to two men.
It's the disco era -- the Golden Age of the gay lifestyle. You're a psychologist making a study of that, but be careful -- don't let yourself get sucked too far in!
A Story in the Gate of Worlds Universe
A group of heroes are recruited to steal an artifact that could destroy an empire, but all is not as it appears, and doing the right thing may lead to their deaths.