Little brother don't you know just how very lucky you are? He takes care of you in so many ways. He is, time and again, your guardian angel. Reminding you of responsibilities; reassuring you most often; loving you always.
To quote your big brother, "Mom, I don't know what I'd do if there was no Casey in my life. He makes everything fun to do. Without him, life would be pretty boring."
A lending spirit and a lucky little one.
Your mama dreams that together you'll always have a life that is anything but boring.