Gustin is four months old today! And, what does the busy four-month-old do is his spare time these days? Well, he holds onto his toes. He's just recently discovered them and they are the most fascinating things. He can lay on his back and hold onto them for minutes at a time. But, the best is when Mommy folds his legs so he can get his toes all the way up to his mouth. That's guaranteed to elicit squeals of delight and some of the most precious moments in Mommy's day.