Luke is sitting up on his own

Luke is almost 6 months old. We took the boys to a WIC appointment yesterday and Luke weighed 20 lbs and is 27 1/2" long and Noah is 40 lbs and 37 1/2" long. I have big boys! They are so handsome though :0) Luke just started sitting up on his own, I love it and Noah is completely potty trained! Yay! I'm so proud of my growing boys!
Noah loves Lukes bumbo seat. He also loves to hide, so every chance he gets he'll do it. Here he's hiding under the bumbo seat and he didn't know I could see him, he was calling "mommy, where am I? I'm hiding!"