The Rules of Scoundrels Series Novels

Never Judge a Lady by Her Cover (The Rules of Scoundrels 4) by Sarah MacLean
No Good Duke Goes Unpunished (The Rules of Scoundrels 3) by Sarah MacLean
One Good Earl Deserves a Lover (The Rules of Scoundrels 2) by Sarah MacLean
A Rogue by Any Other Name (The Rules of Scoundrels 1) by Sarah MacLean