Tarnished, Tempted and Tamed (Harlequin Historical Series #1249)

No Man's Mistress! 

After being kidnapped by highwaymen, Fiona Chapman is a tarnished woman, or so the gossips have it. Nevertheless, she's not about to succumb to the seduction of her rescuer, the beguiling Major Luke Wolfson. After all, isn't he one of her abductors' cohorts?  

Yet when her new role as governess is retracted, Fiona is greatly tempted by Luke's offer to make her his mistress. But she won't submit—not unless he's prepared to make her a much more honorable proposal…