Bound to Fight by A.D. Ellis

Bar and grille owner Cody Parker is the no-nonsense leader of a weekly gathering of the leather community—a powerful, respected man guaranteed to make all the bottom boys beg. He sees red at even the mere mention of Kennedy Marks.
Having escaped a terrifying childhood, Kennedy Marks is now a beloved Blueridge Junction police officer. Until recently, Kennedy has never questioned his role in intimate relationships. He knows Cody hates him, and the feeling is very much mutual.

Neither man can explain why they despise each other. But when an unexpected kernel of desire takes root in Kennedy’s mind, that ever-present animosity begins to waver. Can the two allow themselves to explore the reasons behind their hatred and cross that thin line between love and hate?