Was perusing an old copy of the Decameron by Boccaccio which is similar to the Canterbury Tales by Chaucer. People often outsmart themselves in those tales and it reminded me of a story with a comparable ending. You'll have to read it to compare.
Sue Ellen is unhappy that her very first train ride is going to be spoiled because her brother Tom has to chaperone her. Sue Ellen's garden is lush and fertile and needs seeding. Tom is from sturdy farmer stock and has plenty of seed. Who'd have thought a train ride could result in such a bumper crop? / (Reviews)
A woman attends a mask orgy. Everything's fine until her next sex partner turns out to be her own father! And her girlfriend becomes a second lover to both of them.
Sam is fifteen and she is thinking a lot about sex. She doesn't trust boys her own age but there is someone she trusts completely and utterly: her father.
A young father with a curious daughter, are left together after his wife deserted them. That was 5 years ago, and they are only now returning to normal life.