I will address this tomorrow, but I feel like this comment needs to be addressed now, just because I feel like there is a good point here, and I want to put my perspective out there.
That is exactly the problem, nowadays every Dev of a harem game says fuck it all girls are bi and fuck each other even before they are part of the harem.
This game doesn't contain bisexual harem, the girls are not bisexual. The main and only focus of the harem is MC, and it will always be that way.
When I started to play AVNs my tolerance for that was higher but not anymore if the girls fuck each other behind the MCs back I'm not interested in them anymore, if it's an already existing lesbian couple the MC feels like a third wheel and I'm not interested in them anymore.
Britney and her family are something else. MC is not a third wheel and that will be shown pretty soon. Let me explain. Every character in the game and any other piece of art where a story is involved has a story of their own (past, present, and future). When writing and designing the characters, I and other devs need to come up with their characteristics that may or may not have an influence on some aspects of the story. If we don't do that. it feels like they are not alive when MC is not around and there can't be any character development.
This next sentence was rewritten at least ten times, please bear with me. The reason why one part of the story is written might not have sense for now, but in the future, it will open many doors. With how Britney's family members are, questions like "Why did John leave?" arise. And the big contradiction that will lead to some good character development is "What happens when the Matriarchate family goes head-to-head with OP MC who has his own harem?". To write my story I have to look five steps ahead, but players can only see what's currently happening. I think that this represents the big issue between my own thinking and the thinking of a casual player.
If the MC needs another lesbian incest couple to convince one of his family members that it's ok to fuck each other why is he the MC.
You're missing the crucial part, it's not just an incest family, they represent something bigger. And if I did something along the lines of having Emma and Susan fall in love with MC on their own, I would get comments about how that is so unrealistic because they didn't see him for years and 100 other comments. I could've gone for the route of a younger sister that has always been in love with MC since they were kids and some of the most used stories, but guess what, I would be called out for that too. I don't say this kind of writing is bad, I like it myself even though sometimes it can be a cliche. There is no situation in which I don't get a comment where people think I did everything perfect
