Spikey?

So, today John was sitting on the couch with me while we were watching TV.  He put his hand on my leg.  Usually he is transfixed by the television.  But he looked down for a second and then said, "Why is your leg spikey?"  I laughed and told him it was my hair.  He looked at me funny and said, "But it's spikey."  I didn't know what else to say to that.  Luckily, he went back to being transfixed by the television! :)