My youngest daughter, C, and my sister's youngest daughter, NC, are only a few weeks apart in age. Since birth, they've spent lots of time each week together, and they are absolutely hilarious to watch. They definitely have their own, very specific way of interacting with one another, and sometimes I think they actually speak their own secret language. I guess they are sort of like twins...except that when my sister or I tire of taking care of two babies, we each get to send the other one home to her respective mama.

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