Her Reluctant Mate by Miranda Lynn

Diego:
Known as DJ among his pride, Diego Cordova moved to South America to escape his life as an assassin and torture expert for a cartel. His ability to turn off his humanity is what kept him alive through all the ugliness thrust upon him. Yet his soul is scarred from each life he took… making him feel unworthy of a mate.
How could anyone love him when they learn of all he’s done?

Kymber:
Kymber Prescott knows her boss, Ricardo, is a horrible person, but she’s powerless to escape him. Even so, she‘s irresistibly drawn to DJ and refuses to let Ricardo hurt him, or his loving pride. To protect them all, she’s willing to gamble with the one thing Ricardo has yet to rip away… her life.
Tapping into the side of himself he thought he put behind him, DJ fights to free Kymber from Ricardo’s clutches. Will he get to her in time? Or will her freedom be auctioned off to the highest bidder?