SHAME ON YOU, Mrs. Smith!
No kidding, Jenny Smith and Julien Cooke were part of a welcome wagon to a new sim's home in my "real" (non-story) game. Apparently, they got bored. XD
After this I visited the Smith home and checked Jen's memories. Yep... she had a memory of "had an affair with Julien."
Still, I was SHOCKED. O_o