Does anybody knows how many different paths this game has and how the point system works? From what I see the number of relationship points you have with the different girls is irrelevant for now. Having variables that don't have any impact on the game is stupid.
Probably too early to tell truth be told. I mean there's an argument to be made that you could have a path for every woman, although it makes more sense some of these will just be.... dalliances the MC can partake in whilst working on another path.
The current girlfriend will be a main path I think (although I've no idea why), the step sister will be a main path and I suspect Vicky and Chloe will be another one. I can't see the step-mom being a main path simply because I'm not sure how that would work within the confines of the plot. I don't see the step sister being happy to continue to work with the MC when he's riding her mom.
So girlfriend, step sister, Vicky, Chloe, cousin, maybe one where you cock up and end up with no one and all the other girls are people you can just interact with maybe.