Cry Little Sister (Little Sister #1)

Cry, little sister, and I'll k!ll them all for you.
Scream, little sister, and I'll silence them all for you.
Laugh, little sister, and I'll rip my heart out for you.
Moan, little sister, and use me, for I am yours.
They don't listen to you, but I do. I hear your cries, and if no one will step up for you, then I will.
Let me be your voice, little sister, and I'll make everyone pay for hurting you.