I've had to be careful to say "younger sister" instead of "little sister" when I talk about her. She came to the college when I was in the Miss Andrew Pageant (I didn't win... came in fourth runner-up) and I walked up where she was sitting in the auditorium. I forget who I was with, but I introduced her as my little sister. She stood up, looked down from her 5'4" to my 5'2" (and I think she might have had on heels) and said, in a sneery sort of way ;-), "Little?" Okay, okay.... I learned my lesson.
She's surprised me by coming to my home on several birthdays and, most recently, this past Christmas she and my b-i-l drove down for the day before. We've never been able to spend Christmas itself together... or any part of Christmas... since she married, so that was a very special treat for me.
Although we live hundreds of miles apart, she's still my sister... blood of my blood... and I love her. I wish we were closer in distance, but I don't know that we could be closer in heart. And, for now, that's enough.
I love you, sis, and hope you have the greatest of birthdays.