Don't get me wrong, I like the story as it is. I find erotism, seduction, teasing, kinkiness, and naughtiness (in real life too) and maybe corruption and degeneration (like in this game) are more provocative than plain sex. Eventually, penetration/intercourse between the opposite sex is just like a movement of a piston moving in a piston chamber, no mystery, just an in-and-out movement
.
However, I have some thoughts about all these sex scenes talk. What if Sophia had a kinky dream or nightmare that she was having sex with XXX (XXX can be anyone or everyone by players chose). So she can wake up with a (by players choice or devs choice) mood. She still stays as a faithful wife.
People will see sex seen and dev doesn't need to change anything related to the story.
Just some thoughts...