A New Best Friend?

As you know, Timber and AJ are the best of friends.  Well, I think Porter is getting a bit jealous of all the attention that Timber gets from AJ because he made an appearance today while we were in playtime.  It's very rare for Porter to get too close to AJ, but today he came in close enough for AJ to pet him.  I'm hoping to see this more often and for Porter and AJ to share the love that Timber and him have.