Dangerous Temptation by Christine Glover

Peyton Lockwood is about to launch a new online game’s 3D concept and to celebrate, she pushes her anxiety aside and goes out of her comfort zone—by asking the hot new accountant for a date. What she doesn’t count on is finding out the sexy new co-worker is actually a highly skilled undercover agent hired to stop a terrorist group targeting her company’s game. When he clears her as an accessory to the crime, he takes her on the run to protect her and discover the truth.
Spencer Caldwell is in a hell of a mess. He needs to help CRUSH, a secret agency, to find out who’s behind a foolproof plan to kill and destroy many lives. But to do that, he needs Peyton’s help—the adorable gamer who makes his heart flip in his chest. After his fiancée betrayed him, Spencer has made a vow not to get emotionally entangled again—especially with a client. But Peyton’s sweet ways make him forget about his own rule, and if he doesn’t stay laser focused on this mission, thousands will die—including her.