Talking to dh and dd2 about the the 4B Korean movement and I recalled a film I think the 80s or 90. I thought either Bill Murray or Steve Guttenberg but couldn't see it on their imdb pages.
It's the future and 2 guys arrive there (forget how) there is only women no men exists its alll very sterile. At one point he carreses a small girls face abd asks where are your parents and a whole load of girls cling to him wanting caresses as this is not given i this "future" the film is about the guys trying to work out how men got eradicated. At the very end they have fallen in love and are discussing if they can repopulate men. So they end up putting their stem into the areas where they are "making girls" and the very end scene is a woman who is automatically putting a nappy on a conveyor belt of girl babies. Then sherlock down and screams.. (as the baby is a boy) and that's the end.