S and C-4 months old

S weighs 16 lbs., 11 oz. (80th percentile) and is 26 3/4 in. long (95th).
He loves to babble and laugh. He also loves to watch and smile at his siblings.

C weighs 18 lbs. 11 oz. (97th percentile) and is 28 in. long (off the charts).
He loves to smile and roll over. He rolls so much that we had to get separate cribs to protect
his brother from getting steamrolled.