Maybe make a story about a tiger mom whose son, tired of her dealings, uses a book/science to slowly transform her into his whore. He even uses a spell to create 3 copies, each in different forms that she had as an adult, a teenager, etc., which also transform with her sluts.
-It could all start because the protagonist started going to a BDSM nightclub and he becomes the boss using the power of the book/science of the place, using it to corrupt women.
-It could be some sister of the protagonist, I don't know, I'm just saying.
-The mother could be the boss of an office where 90% are women and then the son corrupts them and the office ends up being something like JAV SDDE 522.
+IT'S JUST AN IDEA