Let's pretend

TJ and I were all alone with our new puppy this weekend.  Daddy was on a golf trip and the "guys" were at their mom's.  We went to soccer games on Saturday and saw everyone, and they all went with us to get the puppy on Friday, so I thought TJ was doing fine.  Until yesterday.  TJ and I were in the backyard playing basketball when he instructs me, "Ok mommy, now I am TJ and you are ADAM."  I said, "I am not mommy anymore?"  To which TJ replied, "No.  I want to play with ADAM."