Book 2 of the Unexpected series. Check out Book 1: Unexpected Rescue.
Special Agent Hugh Cranford, better known as Sport, is conducting an off-the-record investigation. He's after Danny O'Sullivan, a spy rumored to have assisted in the ambush of Sport's former SEAL team. Danny claims he and Sport are on the same side, and the real traitor is the man Sport is working for. But Danny is a master manipulator. He's also the most seductive man Sport has ever met. Sport can't help being attracted to him, but that doesn't mean he's willing to trust him.
In his quest to bring down a few highly-placed traitors in the US government, Danny O'Sullivan has been keeping tabs on Sport. When Sport comes looking for him, Danny decides to bring Sport in on his secret mission and into his bed. Sport may not trust Danny, but he wants him. As the two men risk their lives to complete Danny's mission, they discover neither is as strong as they like to pretend.