He's a trained killer, but he's found his one weakness. The moment Jasper Walker hears Emily Jenkins' sultry voice, it's like a punch to the gut. An instant and heated reaction that winds its way through his heart and warms his skin. Then he hears the one word capable of breaking that electrifying connection: "son." That one word rocks his world sideways, triggering his "hell no" reaction-for reasons he keeps imprisoned...