Agatha Pennybrook is desperate to regain control of her life. In order to avoid another arranged marriage, she's set on learning to be the most skilled mistress in London.

Sebastian St. Claire, a bastard by birth, has grown up in his mother's brothel. He might think he's seen it all, but nothing has prepared him for the curvy and bold young widow seeking his mother's advice.

But who better to teach the virgin widow the art of seduction than himself. When Agatha finds out she's nothing more to Sebastian than a pawn in his plan of revenge, she's heartbroken because not only did she give him her innocence, she also gave him her heart.