Once both boys were back at the house, they made up this fantastic game which served the dual purposes of a) burning off some energy and b) making their mother very happy to see them getting along so well. Believe me, not every interaction between my sons looks like this; if it did, I would not have pulled out the video camera. But they're able to play together well more and more often these days, and they remind me of a couple of energetic little puppies.
The fun continued when they were called upstairs to lunch and Baxter agreed to help Lyle wash his hands (often a bone of contention). As I passed by the bathroom door I heard Lyle declare happily, "Baxter? You are my big, fancy brother!!"
Here are the two fancy brothers having a great time together in the play room (adult supervision highly recommended):