Aiden is 4 months old

My little man is growing bigger and smarter everyday. He talks and laughs and smiles all the time. He is soooo content (until it comes time to sleep), but when he gets to sleep, he sleeps 12 hours at night. He loves loves his sister and thinks she is so funny. He's sitting up assisted and holds his head all the way up when he's on his belly. He rolled over the other day but he had a pillow under his chest. He's a joy and a blessing to all three of us.