At 18 months apart, these two are two peas in a pod. They spend a lot of time together and miss each other when they aren't together for a few days. Sara is very motherly toward Caleb and Caleb returns that affection quite well! He loves to kiss Sara on the cheek and will randomly tell her that he loves her. I know he's going to miss hanging out with her next year when she's in kindergarten. What's a boy to do?!