For more info on the game, in case it helps you guys understand a little more of where the friend is coming from:
The story is set in a post apocalyptic world. The MC joins a band of bandits who are ruthless and live by the code that death is inevitable in the new world, so it's best to take what you want now. And most of what they want are women, so they scour the lands looking for supplies and women to enslave and rape. The MC does not do any of the raping, though he tries to turn a blind eye to it. For background reasons that I'll choose to omit, he isn't necessarily evil like the others but joined them because he was cast out by society before the apocalypse, and so instead of joining up with the "good" survivors, he joins up with the group that society has cast him as.
In the story, none of the raping will be long enough for one to get a quick fap done. It'll mainly be in the background, for example, the MC might be having a conversation with a dude or two who are knee deep in pussy. There's a lot of dialogue about the bandits having a "good time" or whoring out their property to others as a trade for resources. All of this will be painted in a negative light and the player will never participate or even be presented with the choice to participate in that stuff.
Actually, now that I've read this, it's starting to look more and more unlikely this will be monetized