Sarah Jessica Parker has signed on to star in the comedy, A Family Affair for New Line Cinema.

The script was written by Sahara Lotti and will have Sarah Jessica playing a real estate agent who has a one-night stand with a distinguished older man. Variety adds after becoming engaged to someone else and heading off to meet her fiance's family, she discovers her future father-in-law was her bedmate.

There's no production schedule as of yet for A Family Affair.