I just created an account to share my thoughts about this. I've realized that Chinese erotica loves a slow burn story, I've read a couple of short story, but it felt lacking. Chinese erotica feels like they want readers to be invested in the Characters and the overall story, and in terms of Mother-Son incest, they really draw out the relationship between the Main Characters in the story which is the mother and son, it would take so many Chapters before the main characters get to it, which makes it really satisfying when it happens. I like the depiction in different relationships especially in the family, where the children has to be filial, the type of discipline they get from their parents, especially mothers, where the son has to come up with schemes to win over the mother or at least, get to that phase. Because of this thread and the stories you provided (yes, I've read my first Chinese erotica from this thread, and because I found it interesting, I even created my own translation engine so as not to westernize the story and keep what makes it Chinese erotica).