Mating Rituals of the North American WASP by Lauren Lipton

Flap copy:
New Yorker Peggy Adams is upset when she wakes up next to a strange man after a night in Las Vegas she can't remember...but she's horrified when she discovers she has married him! Luke Sedgwick is WASP royalty, the last of the New Nineveh, Connecticut, Sedgwicks. He might also have been perfect, if Peggy weren't already "pre-engaged" to her live-in boyfriend (with a promise ring to prove it). Peggy and Luke agree to get an annulment ASAP—and then receive an offer they can't refuse.

Luke's eccentric Great-aunt Abigail offers the two the chance to make millions on the family estate: All they have to do is stay married for a year. Peggy is soon pretending to be one-half of the perfect couple among New England's WASPy set on the weekends, while keeping her marriage a secret in New York during the week. But she isn't prepared for what might be her worst mistake of all: Falling in love with her soon-to-be ex-husband.

OK, so the plot falls nicely into the realm of "only in a chick lit book", and most of the confusion and conflict in the book could have been eliminated if the Luke and Peggy simply had an open and honest conversation about anything at all- I enjoyed this book regardless. Great-Aunt Abigail was a wonderful character, one whose poignant characterization helped carry this book to a four star rating. Lipton's writing is wonderful and at times the book is laugh-out-loud funny. A great escapist fantasy about why what happens in Vegas doesn't always stay in Vegas, this book should be a must-read for your summer vacation.