When I was pregnant with Ivy people would say, "Oh, you'll love having two so close in age! They'll play together all the time and be the best of friends!" All of the smacks in the face, being dragged across the floor, having toys taken away, and getting hourly pokes in the eyes (all Sophie's doing, although Ivy's getting pretty good at gauging eyes) made me wonder if the girls would ever play together, much less be best friends.
Yes, yes, I know. Patience. Now that Ivy can sit up by herself and scoot around a bit (she started going forward today), she's more than a doll to Sophie.