My Beautiful Sin - Saints and Sinners, #2

Everything Ellie thinks she knows is about to change. Despite his dangerous past, billionaire Devlin Saint finally has Ellie Holmes in his life-and in his bed. Yet shadows still cling to Saint, obscuring his dark secrets and the confidences he swore never to reveal. An investigative reporter, Ellie is certain the man she loves hasn't told her everything. And when she starts receiving anonymous warnings about Devlin, she vows to investigate.
Soon it becomes clear that Devlin isn't the only one with things to hide, and the more Ellie learns, the more she realizes how dangerous it is to love Devlin Saint. His touch is her sin.