Rust or Ride by Autumn Jones Lake

No matter how hard he tries, the road captain of the Lost Kings Motorcycle Club can’t resist falling in love in this captivating installment of the Lost Kings MC series by USA Today bestselling author Autumn Jones Lake.
Dixon “Dex” Watts has traveled a road full of painful twists and turns. He found love young, lost it, and swore to never give his heart to another woman. He’s devoted his life to the only family he needs—the Lost Kings MC.
Emily isn’t just another woman. She’s the best friend of a brother’s wife. Not someone who should spark emotions he thought had rusted out years ago. But when he finds Emily stranded in a cemetery, his hardened heart starts to thaw.
Tragedy has followed Emily like a shadow. She’s committed to protecting and raising her teenage sister on her own. Dating and relationships don’t fit into her carefully constructed world. Besides, no man has ever met her high standards or earned her trust.
But Dex isn’t just any man. He’s obscenely hot, overprotective, and has a moral compass that often points in a gray direction. On the outside, everything about him should scream danger. But Emily slowly discovers the truth is more complicated.
No matter how hard they try, neither of them can ignore their burning attraction. They may be complete opposites with painful pasts and incompatible lives, but once the spark ignites between them, the flames can’t be extinguished.