Who are you writing to?
This is really high level meta shit that you can safely ignore unless it is your actual job to sell these games.
So, the next step of "know your audience" is to actually go beyond the game. Who is this character REALLY aimed at, the person behind the computer screen?
It's straight males. Straight up. By volume, the vast majority of the people who play porn games are males who identify as straight. Their deeds in-game do not matter -- they could blow three dozen minotaurs one after the other and they will still be straight males in real life, subject to a straight male's desires.
What does this mean?
It means that writing a male character is an order of magnitude more difficult than a female one. There will be people who write him off simply for being male because they don't have any interest in men, and this is normal. This can be easily prevented -- make him an effeminate, non-threatening, boyish, and cutesy.
Now you've actually gone all the way around, funnily enough, and straight males love him again. By pounding the fuck out of his bubbly butt, they are asserting their manhood over his -- and it's reinforced by the fact he loves it. Does this make him less of a good character? No. You can even invert the trope (as Berwyn does) and have him be a bratty dominant if you prefer.
It also means that "male writing" is omnipresent. This is not simply just men writing the way men write, but also men writing what men enjoy (not necessarily to the exclusion of what everyone else enjoys, but they are not the focus).
It means that when you write a lesbian character, you are probably not even writing it for lesbians (which are a vanishingly small percentage of the porn game population). You are probably writing it for a straight male who wants the lesbian experience.
This may be disheartening to read but I suspect that most of the writers who write gay stuff already knew. The reason they were writing in the first place is likely because they felt the other content wasn't catering to them… because it wasn't.
This may make no difference to you whatsoever, or you might find yourself wondering why this matters. If that's the case, good -- it probably doesn't.\