The Smart One and the Pretty One — Claire LaZebnik

Smart, successful Ava Nickerson is closing in on thirty and has barely had a date since law school. When a family crisis brings her prodigal little sister Lauren back to Los Angeles, Lauren stumbles across a forgotten document--a contract their parents had jokingly drawn up years ago betrothing Ava to their friends' son.

Frustrated and embarrassed by Ava's constant lectures about financial responsibility (all because she's in a little debt. Okay, lot of debt), Lauren decides to do some sisterly interfering of her own and tracks down her sister's childhood fiance. When she finds him, the highly inappropriate, twice-divorced, but incredibly charming Russell Markowitz is all too happy to reenter the Nickerson sisters' lives. And always-accountable Ava will soon realize just how binding a contract can be...