Forbidden Flesh (1968)

Daring, revealing exposé of life in the big cities!

The hottest girl in the hills and her best friend have just met a traveling salesman. Trying to hold off on these vicious virgins, he begins telling different bizarre sexual stories of the big cities he's been to, which of course gets the two nymphs all worked up. He finally succumbs to their advances only to be interrupted by a mama welding a shotgun.