I created a family in CAS: mom, dad, 2 teen girls and 1 teen boy. The teens are showing up as children to each of the adults (mom and dad) but the mom and dad are roomates. (wth?) I didn't realize ...
Hello Try using the last cheat in the relationships section of this cheat guide link and see if that helps. http://simsvip.com/sims-4-cheats-codes/#Relationships