It won't be like this for long. This I know. Right now they still play well together, mostly. They are close in size, but their formerly defined roles are beginning to be challenged. The differences on how they are being raised, will begin to be even more challenging as they begin school. It's been a good 2 years for these two. Bumpy times are beginning. More will come. But such is the life as cousins. It is the way it has always been.