These files did nothing to solve the loop. So, in this version of the game, I'm going to assume that
anytime we choose ntr option is like flipping the ntr switch "on" even though any non-ntr choice doesn't turn ntr off afterward. It's too bad really. But I'm going to go back to the parents' sex scene and select to not watch it. I believe you mentioned that was the case, but I didn't want to believe it was such a rigid, one-way switch since I had managed to somehow get to the KatieLiveInConversation and beyond in my original playthrough. So, anyway... back to the ol' grindstone/grindgame.
I'm also plotting to just go ahead with the ntr version and see if the mother can live up to her fantasy of getting completely stuffed again.
There is one thing I don't understand, though. Why are there 2 KatieLiveInConversations (an A and B version) but there's absolutely no change in the text displayed in those conversations? Is that a bug, or is one of them a placeholder for additional content?