But no one has actually seen the movie, unless you went to the theater on the three days in August 1973 when it was playing.
Wait...not every woman likes big muscles, and not every man likes big breasts. Sometimes it's the other way around. Physical attractiveness is primarily a matter of cultural norms.
Anthropologists thought it was ridiculous, but the back-to-nature set grabbed copies as fast as they could be printed, creating the first anthropological bestseller since Margaret Mead's Coming of Age in Samoa.
It seems to be about two college student (Johnny Crawford, Victoria Principal), who get all horny with each other and hang out naked, while a psychiatrist (John Hillerman) explains their behavior as cave-people grunting. There are trippy animated sequences. Robert Ito of Quincey plays a samurai. Davis Olivieri of The New People is in there somewhere. Since it was produced by Hugh Heffner of Playboy, I doubt that there is any gay content.
Maybe it's for the best. After seeing the nude frontal of Johnny Crawford so often for so many years, what movie could live up to the expectation?