What we have here are five orgies, enlisting the services of 20 depraved starlets voraciously pursuing their quest for cock, from the BEST of the "Bottom Dweller" series.
Several orgies (one of them all female), most built around the somewhat goofy plot of women who have paid to be tossed into an orgy in order to learn how to enjoy sex. A few of them clown around about being reluctant but most just dive in.