Sister of Hummel

Everyone knows Kurt Hummel, wether they like him or not. But there is something that he has hidden for a while that is about to be unleashed. His little sister Riley.
Now Kurt has always kept her a secret from others for her protection. But what happens when she follows Kurt to school and his secret is out?

I do not own Glee but it would be awesome if I did. I only own Riley and others people I put in the story.