My girls are very social creatures! The weekend of the wedding, they got to meet another set of twins, who happened to be YOUNGER! The four of them played and played and played. I had spent the better part of a week worrying about how they would all get along because Kali and Sylaris can be... um... well, girls. And they LOVE, LOVE, LOVE to be in charge! But they all got along really well.
My girls didn't even fight... I was a little shocked and a lot amazed.