I think I've mentioned (a million times!) that Preston and Spencer love each other. Like a lot. As soon as P was crawling at 5.5 months, Spencer all the sudden became very interested in him and wanted to play. And Preston loves chasing her and cracks up when Spencer does pretty much anything.
I took this video like over a month ago and meant to share it earlier - I can't watch it without smiling. Nothing like a boy and his dog!