They've warned me in hushed tones that my new boss is a "profoundly complex man." It takes me approximately twenty minutes to establish that billionaire Ethan Kingsley is as straightforward as they come. He's a walking, talking textbook on dysregulation. Its title? How to Lose Friends and Alienate People. In the space of a year, he's burnt through one marriage and three executive assistants, and he's well on the road to messing up the only real thing in his his relationship with his teenage son. He works too hard, and he numbs himself harder. His anaesthetics of choice? Workouts. Alcohol. Sex. The more hardcore the better. You get the idea? This is where I come in. I work for Seraph, an elite agency that places the most accomplished, beautiful women in the world with men who require a "full service" solution from their executive assistants and are willing to pay through the nose for it. I can numb men with the best of them. I set about milking this guy until he's human jerky. With the way he looks, it's no hardship at all. Handling him in Hot Asshole mode is a piece of cake. But as I work my fixer-upper magic and the true Ethan emerges from the ashes of his Dysfunctional Era, it becomes clear my Vulnerable Era is only just beginning...Vivacity is a billionaire, single dad, grumpy sunshine, workplace romance with a big HEA. It can be read as a standalone or enjoyed as part of the Seraph series.