I don't want to fuel the debate about whether or not certain themes should be included (which was mentioned earlier), but as the colleague above mentioned, if you start to follow people's wishes too much, the game can become a mess and end up far removed from what you planned, making it difficult to complete.
If your goal is a vanilla game, stick with it and finish it. If you'd like to spice it up a bit and include NTR (which I would love), my advice is to make it completely optional.
And let's be honest, most people who complain about this in the game don't even pay for it. I'd like to support it, but I can't (personal reasons), but I also don't argue whether or not it's to add some fetish to the game.
Anyway, be true to what you'd like to include in the game.