It's a game you can play once you're bored with watching how far some brute can stick his forearm up someplace it was never meant to be, so let's go shall we?
Surprisingly, one of my faves, In the Drivers Seat, still is waiting for someone (you maybe) to make it. On the other hand, I was amazed to find another one, Under the Big Top, was not only produced, but done so quite well by the genius director Kristen Bjorn
and stars the creamy dreamboat, Max Veniziano.
Also another title I'm quite fond of, Grease Pit, is still unrealized, although a search for that term turns up some real doozies, including, but not limited to Grease Guns (1 and 2)
and the close-but-no-cigar Grease Pit Daddys. That may be an improvement, I'm not sure.
Plus Low Hanging Fruit is also inexplicably available and, again, searching for that reveals some candidates that have been cranked out that I am not even going sully my blog with by repeating.
Pretty much any common phrase is a likely candidate. In fact Common Phrase could be a great choice, the story of a randy English teacher and his naughty pupils, although I suppose it requires one to know that "common" not only means vulgar, but once upon a time was used to refer to one who was sexually knowing. Ooh, ooh, and Sexually Knowing would be another and a shout out to the Who's Quadraphenia to boot. And what would lend itself to this better than To Boot? Why do I have to do all the thinking around here?
The great thing about smut titles is that not only do they provide the name of the film, but the plot as well, and, frequently, most of the dialogue. You come up with Daddy's Home and, boom, you're pretty much done with writing. Or "writing." And also, again, searching for that gem leads you down a rabbit hole of ouveres you probably don't want to know about, although Daddy Ike Is Collecting the Rent sounds like it might be amusing.
Sorry, I gotta go, I have tons more research to do.