I've never seen this before and thought it was quite funny. My mother sim and her girlfriend were conversing and suddenly the mother started talking about some other man, obviously someone she found attractive because hearts were flying out. The entire time, the youngest daughter was in the room and when she saw her mother's expression over this other man, she suddenly started pointing at her mother and got this absolutely evil grin on her face. When I click on the daughter, it said "Shock". I didn't think shock quite described the look on the daughter's face, it was more like, "I've got a dirty little secret about you and I'm telling daddy!"
I haven't seen that yet, but I hope to! New twists and turns around every corner in NL! It's funny that the spouses don't seem to notice, though. I have a married couple with good chemistry, but the wife also has good chemistry with her husband's brother, who lives with them. They swoon over each other all the time, but the husband doesn't seem to notice. I wonder if the kids did?