One of my son's pitchers has been a great reference for him. They aren't friends off the field, and don't go to the same high school.
They are now both being recruited by the same college.
I don't know if I would describe it as a bond, but there are catchers that pitchers prefer. My son is a very good blocker, but not flashy. Calls pitches well. Pitchers have always liked throwing to him.