i'm not sure how you get them to move in with a sim that you don't actually control! I
had the same problem and it was only after my sim's g.f got pregnant that the option
appeared to ask her to move in!

little late huh? XD maby u just have to spend time with them? o.o? idk ill keep looking
ill say if i find anything lol

After my sim fell in love with the uncontrollable sim a box popped up and said something
like this: your sim as a good connection with ...... do u want to move in with .....

Eh i think if you get married you automatically get the choice to move in. Unless you've
already slept with her before that and have a kid with her. Otherwise try making your
relationship good with her and maybe a conversation topic of asking her to move in will
pop up.

im having trouble too. my sim's wish is to MOVE IN WITH HIS G.F not he other way around.
thier relationship is really high and she's pergnet. but it wont let me

You have to go to the town and click on your main family, then merge family with your
girlfriend's but just take the girlfriend. It's less interactive but it's easiest.

ALL OF THESE RETARDED *** ANSWERZ!!!!!! *** YOU ALLLLLLLLLLLLLLLLL BIOTCHES!!!!!!!!!!!!!

ALLL U MOTHER FUKCERZ IZ *** AZZ H ELL YALL POST DIS SHIOT