Books like Slightly Dangerous by Mary Balogh

London society buzzes as the reclusive Duke of Bewcastle is set to attend the season's most glittering social event. Rumors swirl around his cold reputation, yet he finds himself captivated by Christine Derrick, the only woman in the room who does not try to impress him. When the Duke invites her to become his mistress, Christine’s independent spirit and witty perspective challenge his rigid views on men, marriage, and morality. As they navigate their forbidden liaison, a fragile bond forms. The Duke, once convinced he would never lose his heart, confronts the possibility of genuine affection. Christine, who has always ridden on her own terms, discovers a deeper connection that both forces and comforts the aristocrat. Their disparate backgrounds and stubborn natures create tension, yet also the potential for an unexpected match made in defiance of social norms.

First publish date: 2004