I can never get him to do this for people on demand, so I caught it on video tape! This is my 19 month old. He's been doing this for a couple months now. I asked him where his cheeks were, and he thought I said teeth because that's what he pointed to. And yes he is sitting on the back of our couch. He's a dare devil.
And might I add that it is taking quite a long time to post this video!