Man, I want to like this game so bad, but the MC is such a wimp. I don't understand what the dev is trying to do here, because none of this makes any logical sense at all. Especially when you consider the fact that, as everyone else has already pointed out, most of the women have absolutely no issue with him jumping their bones. As a matter of fact, the vast majority of women in the "sexual aquarium" are practically throwing themselves at him. So, what is the developer trying to do here? Are they trying to say that a guy shouldn't have sex with a woman even if they've been given the okay by the woman themselves? I understand that the MC doesn't have much experience with women, but this is not the way to show it. Seriously, the MC is acting as though that if he so much as asks for a blowjob, he'll spontaneously combust and the universe will literally implode on itself. It really isn't a very appealing thing to watch, considering that this is supposed to be a harem game about a dude getting his dick wet in an "alien" town called "HaremVille" for christ's sake.
C'mon dev, I know you can do better than this. The potential is there but you're just not exercising it.