Key Key!

My son was in his high chair this morning, just finishing breakfast, when he started saying, "I play key key!"  I was trying my hardest to figure out what toy sounded like "key key," and even thought that he might try to be saying his sister's name.  He was getting more and more frustrated as I struggled to understand him.  I finally noticed that he was pointing to his belly while saying this to me, and then I got it!  "You want to play nakey?"  "Yes!  I play key key!"  So he's been running around the rest of the morning with just his pants, no shirt, while he plays.