My Brother My Mate?

Ariel is a werewolf, she lives in the Raven Hail Pack. She was an only child for five years of her life, but that all changed when mommy and daddy brought a boy home claiming he is now her older brother. He isn't exactly the ideal big brother, his name is Xavier. He seems to be the kind of kid you want to avoid in school. Yet, when he tries he does everything perfectly, when he isn't pulling pranks on other kids and teachers.

The more he aged the closer they become, but what about Ariel? She is almost exactly the same, she came up with the plans while Xavier took action. That's how it worked all through elementary school, middle school, and now high school. The thing is, Xavier is becoming more overprotective of Ariel, she is about to find her mate! But Xavier doesn't like the idea of Ariel leaving him for some guy.