My father's older brother passed away shortly before my birth. Cancer took him at an age when it shouldn't have.
I have three younger brothers and we had our fair share of sibling arguments growing up. My father would always say to us, "These are the only brothers (and sister) that you will ever have."
As a parent, I have said this to my girls. (Believe me when I tell you that you will repeat at least one thing that your parents said to you to your own children. You think that you won't. But you will.) When they are grumpy and fighting with each other over something absolutely ludicrous, such as "a kid Little People" I will say, "These are the only sisters you will ever have and you are so lucky to have each other so let's not fight over a toy. Okay?"
I tell the girls how I always wanted a sister and how great it is that they have two sisters. When I was younger, my brothers didn't want to play doll house or Barbies with me. My girls always have someone to play with. (Except when they are fighting over toys. Or having their alone time.)
Allie has asked me why I don't have a sister. Hmmm, I can't really explain that one but find it interesting that she is asking.
As a mother, I love witnessing that bond between them. Watching their closeness.
They will always have each other.