Protecting His Girl

This is a alpha male, sisters best friend/enemies to lovers instalove story.
Colt:
When fiery redhead Mabel storms into my bar, I find myself craving her, but how can I crave my little sister's best friend.

Mabel:
I just want to be left alone, but Colt is one determined alpha male and I might just let him have his way.

In a town where loyalty is everything and secrets can be deadly, will Colt and Mabel's passion be enough? Or will their differences get in the way?