His Courtesan Bride (Brides of Mayfair #3)
Michelle McMaster

Serena stirred Darius’s passions as no other woman ever had. Even as he kissed her that night at the Mayfair ball, he knew he could never make her his wife, for he was pledged to another. Now, years later, Darius is free at last and cannot forget the passionate, auburn-haired miss that still fires his blood. The wealthy Lord Kane makes Serena an offer she can’t refuse, to share his bed as his exclusive courtesan.
But as Darius and Serena begin a journey of unbound pleasure together, they soon learn that the most dangerous emotion of all isn’t passion, or desire… but love.
“Michelle McMaster knows exactly how to keep readers entertained with the perfect mix of romance and laughter. She is a historical romance author to love!” –USA Today bestselling author, Julianne MacLean