Well, thanks for the advice !
It seems this kind of niche content like NTR leads to a lot of burning debates on this forum. And since it's not my personal cup of tea, I will probably stay far away from it.
Happy to be of help.
I would honestly suggest only to do things that are within your own cup of tea, since you are the one who has to make it. (and you don't want to get stuck making content you don't like and even hate).
Ignore the demand and offers of money too.(only accept if it is something you actually want to do, although if it is somethign controversial ).
A good question to ask yourself is "Would I play this?" (and if you can think of yourself as the different demographics you're going for, or the one demographic you are going for if it is that simple).
That all being said, I would highly suggest, you put somewhere things you won't ever add (both here and on patreon), just so that you don't get people constantly asking for them.
And maybe add a future tag list too while you are at it (have a good think about it, mull it over and such).
Bonus: Would also be careful how you handle fictional char's that have a pre-establish relationship in cannon that is very beloved. e.g. Yor, Kaguya, Nagatoro etc. (since the players who are in those fandoms likely won't enjoy feeling like they are stealing those characters and ruining something they like so much about the source material.)
A possible solution to get around that, is have them be from an alt-verse where the ML of those stories never existed. (i.e. since this is a porn parody, and they are 18+ them still being single and having not had a serious relationship would be obvious evidence that they are from an alt-verse, like why would they be a virgin at 18 still if the ML existed in their universe, that one doesn't work for Yor tho :S).