When you're all alone
And feeling down
You need someone
To change your frown.

She'll make you laugh
When you want to cry
You have to tell her the truth
Because she'll know if you lie.

You can count on her
And she can count on you
When she says "I promise ..."
You know that it's true.

She is there by your side
No matter what you do
Your sister's more than family
She's a friend through and through