My baby only likes it when i hold him!!

When someone else wants to hold him hes content for a couple minutes, realizes it isn't me and starts fussing. They give him back to me and he stops within a few seconds.
Hes only a month in a half old. Do babies just always want mom and is it normal for him to act this way? I don't hold him all the time

Totally normal.

my niece is like that, too. Moma is the best!

Completely normal to him. Your voice/touch/smell is comforting to him because he was in your tummy for 40ish weeks. They're hard wired to be like that with the momma bear.  

babies know there MOMMIES   they have listened to yo voice for a while and they know ur smell   enjoy it while it lasts my DD is 3 and she would rather be with anybody elts lol im very excited ( im due in less than 2 weeks with DD #2)