This is a sorta science fiction film set in some distant future where marriage and love are illegal, but it's implied that everyone screws like an endless orgy. A group of rebels break the law by screening old movies from the time of marriage, love, and 'morals'. We watch a movie within the movie, about the last three virgins on a college campus, who decide they're ready to give it up.
The Curious Female was rated X, but by present-day standards it's not really a porno, and only occasionally even sexy. It's more like How to Stuff a Wild Bikini without the bikini. All the boinking takes place off-screen, because the movie was made in 1969, and released in real movie theaters.
So it's a so-so movie with tits, but what surprised me is, it's a movie. It's not a *good* movie, but it holds up better than Gidget or any number of other films of its time. It's only slightly sexist, not racist at all, and subtly portrays an omnisexual 'LGBTQ is AOK' future. It handles some serious matters far too fleetingly - the lecherous uncle, the honeymoon disappointment - but such elements are not played for laughs. There's a plot, it's directed, and all three of the virgins are portrayed with actual acting, something you no longer see in X-rated movies.
Verdict: MAYBE.