It was suggested that I come here to share my incident with the "incest" bug. This incident happened in the first week of September.
-The brother and sister were both teenagers and have 90-100% friendship, full green bar.
-First the sister got into a relationship with a (non-relative) boy, they became boyfriend and girlfriend. (both teens)
- I left that family to go play another family for a little bit, when I came back, the brother and sister were in a chat just with each other, and I noticed the heart ++ between them. So I checked and sure enough they had a romance bar and their relationship said romantic interest...with brother/sister still labeled in their relationship panel.
- I took my mods folder out and reloaded the game from restart. Nothing changed.
- I decided to go into console and did the cas.fulleditmode cheat and in CAS, checked the relationship there. It did say they were siblings. But I reselected it to see if it would do anything, and when I went back into live mode, there was no longer any option to flirt between the brother and sister. However the relationship bar still indicated romance, I just had to be patient and let it decay. That was the only thing that helped for me to get them to quit having the romance option and random flirting.
Just to add about the mods, I do have some CC that is hair and a few clothes items.
And I have 5 script mods (I think that's what they are) that I regularly check for updates with every patch: Faster eating an less musical chairs, no children at night clubs, no autonomous hand washing, and darker progress circle.
