These two have so much fun together.

This cutie flip flops between laughing with them and wandering off by herself.

It's so interesting to see their interactions with one another and also how the dynamics differ when one sister is missing. It will be fascinating to see how Jesse fits into the mix as he becomes more vocal and mobile. For now, he does a lot of observing - and occasional singing - from the bouncy seat (which hopefully lasts a few more months before it sighs to the ground from its inhabitant exceeding the weight limit).