Dangerously Big - Executive Toy, #3

Working for Romeo, Hawthorne, and Slade is a challenge, but the dominant men give Lindsay exactly what she needs. Even though Hawthorne continues to drive her insane, she's happy with her new life. But when a stranger with a gun steps out of the shadows, Lindsay realizes that happy is dangerous. Happy will get her killed. A woman with Lindsay's past doesn't have the luxury of waiting for a knight on a white horse.
She'll have to settle for an arrogant, condescending billionaire. one whose goal has always been to get rid of her. Desperate women don't get easy choices. This is a billionaire menage office romance.