Me too

They follow each other around all day long.  Since neither of them can talk...I have to imagine what they are thinking-

"Mom's taking your picture?  So not fair.  Okay...here I am..."

"Are you going to sit in that chair?  Then I will too...wait...you're getting out...okay, me too."

If I want Olivia to get dressed, I just dress Isabelle.  Not to be outdone, she brings me her clothes right away and sits in front of me.  If I change Liv's diaper...here comes Isabelle.  I've discovered that a little healthy competition can make my life easier.