Frampton, Megan, 1964- Hazards of dukes #3

Thaddeus, the new Duke of Hasford, holds his new title reluctantly, but his sense of duty is strong. Task number one: find a wife and secure an heir. He thinks he's found the perfect choice in Lady Jane Capel-until her sister, Lavinia, bursts onto the scene. Vivacious, rebellious, and strikingly beautiful, Lavinia is determined to keep him away from her shy, sweet sister. And she's also determined not to think so much about his broad chest and strong thighs. When Lady Lavinia and Thaddeus end up in the most compromising position, witnessed by Lavinia's mother and nearly everyone at a party, they're forced to get married to protect their reputations. With no love between them, but with an heir to conceive, they strike a bargain in bed. Only Lavinia demands passion, and Thaddeus complies, with both of them realizing this marriage of convenience may turn into much more

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