If the Duke Demands — Anna Harrington

A LESSON IN SEDUCTION...
Miranda Hodgkins has only ever wanted one thing: to marry Robert Carlisle. And she simply can't wait a moment longer. During the Carlisle family masquerade ball, Miranda boldly sneaks into his bedchamber with seduction on her mind. Soon she's swept into rock-hard arms for the most breathtaking kiss of her life. But when the masks come off, she's horrified to find herself face-to-face with Sebastian, the Duke of Trent-Robert's formidable older brother.

Shocked to find Miranda in his bed, Sebastian quickly offers her a deal to avoid scandal: He'll help her win his brother's heart if she'll find him the perfect wife. But what begins as a simple negotiation soon spirals out of control. For the longer this reformed rake tries to make a match for Miranda, the more he wants to keep her all to himself.