Last name didn't change after getting married.
I moved two sims in together and when they got married, the female still has the same last name she did before they got married, and their child has her last name.
Forum Discussion
"meggles;12565156" wrote:
@MsPhy I am SO trying this when I get home!! Thank you!
It does work, did that when I got my Sim married back when I first got the game.
