Most of the time the "mind control" is just the device for the plot to initiate the sex, but yes, even in the ones without it the story is always boils down to "we had sex and my dick is so amazing now this incredibly attractive woman completely devoted to me as my personal cock sleeve".
Not all of them are "becomes slut after the first Dicking". Some of them have some build up like Big Boobie Boss Blackmail or Elf Wives cheat to ride my meat. Havent played this one yet but if its like previous hypnosis ones, its all about the woman not knowing she is being hypnotized and thats contrasting of when she is.