It's hard to know for sure, I usually get request to make long animations but I like to stick with 10 to 15 loops cause when I work too long with a single character I and up losing interest, imagine working years on the same project.
Why would the Dev add extra hours of work just to please a small percentage of players and risk lose part of his public?
If the Dev is doing the game as a hobby he will probably only add whatever he likes, and if he's doing as a job he will go for something that is popular.
There's a lot of other tags that can come with NTR like corruption and Blackmail, and a lot of people like to view themself as the one corrupting so you don't have to specifically like NTR to enjoy a game with it.
It's hard to recommend something without knowing what you like.
Finished Death's Door recently, is a beautiful game, with a challenging and fluid combat and Great Soundtrack.