I was going to write an in-depth comment on this until I went on FA and realized you are very smart.
You understand your game is very small, with proof-of-concept level of content, and that it needs, and will need a lot of work. I agree with everything you said there and I'm surprised with how aware of things you are.
From your wording on FA you seem to know this already, but I'll develop on it anyways:
With the way most porn games go out nowadays, they are either subsidized by donations whilst in-development, or go out for free and the artists plug their stuff and ask for donations in the end. Unless your game is really shiny or has a lot of content already I doubt it'll work with a price tag. And I don't think this is what you want to do, seems to me you want to add an optional price tag, which I agree on as being the best solution. I just want to say this that if you do a normal price tag. 7-8 months from now the game's activity might get so cold that you won't get enough traffic of people that'd be willing to pay for it and that you'd be better with donations.
You can see this as the crazy ramblings of a person who does not want to pay for porn. Or a guy that saw the amount porn game devs get paid on patreon before they started hiding it.
Your game is 3 days old and has 5 stars and many reviews, I really don't want people months from now to go and say "I'm not paying $5 for a RPG maker game", when they you'd gladly donate because they enjoyed the hypno stuff. Besides it's not like F95 wouldn't just leak the game.
You can do optional prices, as it seems you will do, or even open a patreon now if you wanna take it a bit more serious and get donations mid-development. (If you already have a patreon link it on the main page!)
You seem to like writting, so I hoped you enjoyed reading my wall of text lol
Also, whatever choice you make, good luck with the game and remember to have fun with it! You make dialogue not boring, and god is it horrible to read dialogue in porn games, so thank you for that. I even will replay the game next week, to kill everyone and get every line of dialogue, there's also a sprite in the IMG folder I haven't gotten so I'll search for that.