Question about new update "Gender Preference"???

"mebagl15;c-17120473" wrote:
So it's been in the game all right along, but now we can choose the sim's sexuality in CAS. Is this correct?

Yes, you basically trigger it by who your sim flirts with, either autonomously or by your control. If your sim flirts mostly with men it establishes a preference for that gender, and vice versa with women. I assume too that if your sim flirts with both somewhat equally their preference will be for both. :)