Someone's 4 months old

Our little buddy is already 4 months old. He's starting to get a little chubbier, too! He's doing so many new things, is so involved in everything around him, and we just love watching him learn and grow. He did very well at his pediatrician appointment. He now weighs 13lbs 90z, and 25.5in long. Basically he's long and lean! He's so close to rolling from back to tummy (he's been doing tummy to back for a couple months), and loves chewing on everything he can get his hands on. Although mostly he just loves chewing on his hands :). But his absolute favorite thing to do is stand up. He just can't wait to be able to walk! We've also gotten lots of belly laughs out of him, mostly from tickling.