Shot to Hell — Cynthia Rayne

Love thy enemy.
Steele went from hometown hero to jarhead and took his best buddy, Abe, along for the ride. After Abe died in the line of duty, Steele quit the Corps and joined the Four Horsemen MC. Now his club brother, Coyote, has been taken by a rival MC and Steele fears the worst. He calls in Ash, a security contractor who specializes in kicking ass.
As a teenager, Ash fell hard for Steele, but that went south after her twin brother, Abe, died. They're bitter enemies with plenty of unfinished business. Will these enemies become lovers? And can Ash and Steele find Coyote before it's too late?