An affair with a notorious heiress
(Book)

The son of a duke and an infamous mother, Alistair Mabry, Marquess of Rexton, fought his way to respectability. Now, the most eligible bachelor in London, marriage-shy Rexton will take only a wife with an impeccable reputation, good breeding, and a penchant for staying out of the gossip sheets. But when he strikes a deal to be seen "courting" a sweet young debutante whose notorious older sister has blemished her chances for marriage, Rexton is unexpectedly drawn to the highly inappropriate, calamitous Tillie, Lady Landsdowne herself.