The option to turn erotic content on/off was actually me testing how to implement different toggles for different fetishes, but I never ended up fleshing it out because: 1) I wanted to keep the dev scope of my 1st game simple; 2) The scenes in the game are decently avoidable; 3) I wanted to focus on other areas of development first. Also, if I only implemented one type of toggle (i.e. bestiality) then other players would require additional toggles, thus I would have to make one for people who are not fans of futanari, vore, insect, etc, meaning I would have to acount for most if not all erotic scenes in the game to have individual toggles.
While the request is reasonable enough and fetishes toggles is something that I support, the implementation is not exactly trivial. So I guess what I'm saying is that if I'm able to finish all the other remaining priority dev tasks before my predicted release date, then I will look into this feature. Otherwise, this might be something that I'll maybe leave to an after release update.