Sinclair Brothers Series by Melanie George

Gray Sinclair has spent a lifetime doing exactly as he pleases--and women are one of the things that please him the most. Fiery Scottish lass Bonnie MacTavish has no intention of being seduced by a black-hearted English scoundrel--and she's determined to show him that indulgence has a price, and it's time for this handsome libertine to pay.

When her old schoolmate Jules Thornton invites her to London for the season, fiesty Sheridan Delaney meets her match in dashing rogue Nicholas Sinclair, who is Jules' uncle, and together they embark on a romantic romp through London society. Original.