Asses getting rammed with hard, pre-Viagra dicks was the innovation that ushered in the vintage male porn of 1970. THE ASSAULT showed Crisco-lubed cock plowing into a hairy, writhing butthole and advanced hardcore sex one more giant step. Zoomed in to screen-filling closeup, there was no beating around the pubic bush with this depiction of real, not simulated, male buttsex. "Guys have been fucking like this long before the camera was invented. Films without ass fucking were no longer considered hardcore!" proclaims our horny naked narrator Fred Halsted.

To the tune of "Ain't Nothing Like the Real Thing" we see a joyous montage of guys finally able to drill their dicks into each others' horny holes. Once all the barriers were down in the early 70s, it was time to add at least a rudimentary story to spice up the nonstop fucking on the silver screen. TARZAN THE FEARLESS was an early epic where the heroic king of the jungle comes to life to grind his gonads with a young fan. Now porn models needed to act as well as they fucked.