Hot Tomato
Did a quick run-through to checkout your game, will have to do a proper run once I have more time. Honestly wile I don't agree with the way some of the posters here said it I do see where the others are coming from. Given the fact that hone select uses the same base model for all characters it just puts a penis on the males. The MC looks like he has on panties (the color doesn't help).
As technically he is looking at him from behind it will look very feminine as it is a female model butt in female underwear you are seeing unless your using custom mesh you will have to work harder to make the males look well male as is the limitation of the software.
As for the zombies. I can see the "non ntr side" being off putting for some but from the OP I think I see where your coming from.
As for the Mom and sister. I think the bath scene happened to soon the pacing of the progress with the son and mom VS sister mom is unbalanced. Although technically the son has done more with the mom in quantity story wise. The sister gets more quality wise. While the son only gets to masturbate to her they both fondle and virginally stimulate each other to orgasm, also coupled with the fact she had just told them to stop, she comes off as a hypercrit.
From what I'm getting she was a straight woman and while mother son incest is taboo for a straight woman she would have to surpass a double taboo for mother daughter incest. First she would have to accept being either bisexual or homosexual, and then she would also have to accept the incest. Now I get you may be going off the fact that she may be afraid of getting pregnant but even still there could be more development on the male side.
All that leads to people feeling the MC is Being kept in his place at arms length even thou the distance is closing, While the mother and daughter are having there relationship that he has to squeeze into. Add in she separates them and then is the initiator of one of the most intimate scenes in the game so far. Honestly that scene done the way it currently is has more of a NTR feel then the zombies.
1 there already dead and going by most syfy there just dead bodies moving on impulse unless I missed something I did skim through it some.
2 she gets between you and the sister in (the feeling up breaking up even if temporary)
3 she made the first move by groping the sister and relived her sexual frustration directly and even penetrivly no matter what was said
The MC doesn't know but the player gets
You must be registered to see the links
vibe(pleas don't stone me for the comparison I know NTR is a land mine take what I say with a grain of salt)
Honestly I think the scene was hot but again to soon. As is it feels like the mother daughter are progressing the fastest. While it may have been the daughter son before the mother steps in and goose to 3rth base with the daughter. while not a home run depending on how you look at it. It is close.
Now I'm guessing the MC is about to get some development going by the ending but I would caution to watch the balance going forward as the scale is leaning right now.
Honestly I would like to see more Mother daughter but I also wont to see the MC getting some and not always a step behind.