Brother and sister

Here they are, two peas in a pod. There is no doubt that they are related. Harper is very interested in his big sister, laughing and smiling whenever she is around. Abby is equally enamored with her little brother, constantly bringing him toys and favors to keep him occupied. Of course they are different too, Harper is out-pacing Abby's growth. In a few weeks he will be one half her current weight. I'm wondering if this will encourage Abby to eat more… — Cathy