Before Times Square theaters (and others scattered around the city) began routinely showing triple-X flicks, they pushed the envelope with low-rent, R-rated fare—like these two movies advertised in a December 1970 edition of the New York Post.
In the pre-Internet, pre-cable, pre-VCR days, this was about as much skin as you could possibly see on screen. Looks almost romantic compared to what’s available today!
An Ephemeral reader sent in this link to the very soft-core, surprisingly action-packed trailer for The Student Nurses.