Beta's Cub For A mate

Cadons is now beater of the Cyclo pack
When he was in his early teens he was best friends with his now Alphas younger sister Alex aswell as her protector who was and still is practically a cub..
What happens when she returns back after a few years after just starting school and his inner wolf who is now consciousness tells him something is up and.maybe more.....his need and diser to protect her and ensure shes safe is stronger than.usule. Is it just protective of her as she is the Alphas sister an hier to protect in his blood due to her tiitle or is it something more?
Can he keep it a secret and will he be abel to keep him and his littel mate together from her brother, the Alpha.
Guys the story has some ish but I wanna get around to editing it but brows as you wish for now