PS#1. This was going on during dinner last week (hm- a couple of weeks ago, maybe... on the 1st). It was absolutely unprompted and unsolicited. It was, however, encouraged- as I ran to grab the camera as quickly as I could.
PS#2. A bit of James-anese translation:
1. Towards the beginning, after my request to make his sister laugh again- "I'm almost done wiff my sammich."
2. In the end, amid giggles- "Wha-did me DOed?" (pronounced "dude," meaning past of "do"... lol)
I love, love, love how much they love each other.