I have given this a lot of thought actually. Initially I wanted them to be strictly exclusive. But I went back on that a bit. I don't think, nor do I want to make a path where you can have them all at once, that makes complete sense in the story. I can't think of a way to do that anyway, at least not one that's not straight up a mental brainwash.
So my current idea is - MC gets confronted by Kate if he's on both paths(had sex with Kate and kissed Hannah) and talks his way out of it in some 'we are demons' manner.
Then the player gets presented with a choice - the choices being Kate, Hannah, neither (Emily) and All of them with an asterisk and the asterisk being that the relationships within the story won't make sense and that I will not bother with it making any sense, leaving this completely up to the player. A cheat-mode so to speak.
I will probably lock this option behind a variable in the settings (Harem mode), to make doubly sure that people understand it's not vanilla intended and don't bother me with complaints that it doesn't make sense.
Alternatively I could just make the harem mode bypass the whole confrontation scene and any subsequent scene of the same nature and let the girls at the house be oblivious to each other, same for Nora and her mom, etc.
Either one of those options I personally feel like are the best solution I can come up with, that satisfies everyone.
Well, I guess I made the right choice then by rejecting Kate.
I used the gallery though and I admit, scene with her was probably one of the hottest Milf-scenes I've ever seen so far.
But yeah, from my perspective (the one who is interested in Hannah) it wasn't very nice, I mean, on a date with Hannah, if we tell her that Kate flashed us she literally asks not to do any shady things with her mother (at least as far as I remember). And yeah, I know that MC fucks around on the side, but banging girls outside the house is one thing, and fucking her mom right after she asked not to felt like a total dick move.
Not sure explanation "I am a demon, what did you expect..." makes up for it
But that's only me)
And yeah, totally agree about the story not making any sense on harem route.
I will never understand how collecting all the girls in a game can compensate the fact that this way game doesn't make any sense. But, oh, well.
Also wanna say that I like your game very much, and can't wait for it on steam. Hope everything goes well with that.
Oh, and the last but not least - Lilith, Hannah and Vivienne are