This is honestly sad, if it wasn't for all this forced shit and the sharing stuff this would be the ultimate harem simulator, i would gladly support this if it wasn't for this things.
I agree that this game would benefit from a lot more freedom of choice. Pairing the Rachel path to Gia for instance was a mistake. Honestly the whole Rachel arc has been kind of a mess. Here is how I would fix it. Not that it matters.
Luke should have fucked Rachel about six updates ago because it was obvious that they both wanted it. That first scene that was looking like a Michelle and Rachel threesome and then Luke gets tired and falls asleep should have been the first time they fucked.
After Luke went down on Michelle, she should have left to give Luke and Rachel some privacy and then they should have had there first time.
Then at the Christmas party, Michelle and Rachel should have given Luke a double BJ and Michelle should have tried to kiss Rachel afterward. Rachel feels awkward because she is not sure if she is comfortable with her first time being with a girl to be with her son and his girlfriend.
This would lead Rachel to seek out Gia to get her comfortable being with another woman. This makes sense because they would have bonded over mutual son-fucking. This would also make the Gia arc make a bit more sense in general.
This path could of course be avoided just by giving the option that Luke would rather he and Michelle take it slowly and introduce Rachel to girl on girl in their own way.
This could then lead to a threesome where all three members (Luke, Michelle, and Rachel) are enjoying each other and it would have happened at the point where Luke fucked Rachel for the first time in the real version of the game.
If you are still reading my musings, bless you.
I think this is a much more organic way of introducing Gia since her being needed so Rachel would fuck Luke never seemed necessary other than as a way to drag out the Rachel/Luke payoff, in my opinion.
You should be given a choice whether or not Luke shares Michelle or any of the girls with anyone else, but it seems like that ship has sailed. I'm just hoping we aren't ever forced to share with any non-imaginary guys in this game in the future. The girls talking about it is bad enough.