Breeder by Jordan Silver

Royce Carstairs had one thing on his mind when he sought her out, revenge. While he’d been off saving the world, someone had taken everything that meant anything to him. Now after a year of planning, he was ready to put his plan in motion. He hadn’t meant to fall for her, she was supposed to be a means to an end. But after having her tied to his bed for weeks, he found something more than the cold vengeance he’d been after.