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Reunited and it looks so cute!

Teen Mom star Amber Portwood and daughter Leah, 2, are once again living under the same roof -- and only Us Weekly has the pics of their emotional Dec. 6 reunion in Anderson, Ind.

Back in October, Portwood, 20, decided with Child Protective Services that little Leah should live temporarily with dad Gary Shirley, Portwood's ex. (Portwood's apartment had been besieged by photographers and curious neighbors.)

But now Portwood has a brand-new three-bedroom home in Anderson, and "is so excited to have Leah back," a source tells Us. "She has a bedroom all set up."

Portwood herself told Us last month, "I even bought a desk where she can sit next to me while I'm doing work. I can be near her all the time."