Pretty Lies by Bethany-Kris

Pretty things always tell lies …
Cory Rossi isn’t what you would expect the youngest son of the Chicago mob’s underboss to be. Despite what everyone thinks, he can actually do what he’s told. He just does it his own way. The problem with that is every tattooed- and leather-covered inch of him screams one thing to Della Costello—total heartbreak. It’s all men like him do, right? One hook-up, when he didn’t even know her name, was all she could afford.
Their one-time encounter should have stopped there. But an ex that causes problems for her business—and the mob’s—and Cory becomes her new shadow until the bullets quiet in the streets. It gets harder and harder to stay out of his bed.
They’ll walk a fine line.
And there is no mercy in this tragedy.
For love and lost blood, once more, Chicago will rage.