Night night, dogs

Tonight as we got Connor ready for bed he was saying his goodnights.  He said "night night" to Daddy.  Then the dogs came in to say goodnight.  We are dogsitting for Zoe so there were two dogs to say goodnight to.  I told Connor to say goodnight to the dogs and he said "night night, dogs". This was the first time he'd ever combined two words! I can't believe how much he's learning.