Yet another endearingly flawed, contemporary London career girl comes down the pike in this latest novel by British writer Green (Jemima J). Libby Mason, 27, enjoys her fashionable career in PR, but is determined to marry a rich, "gorgeous" man who will support her in sumptuous style and allow her to join the class of ladies who lunch. Her previous relationships have proven unsatisfactory on all fronts, but then she meets Nick, who happens to be "gorgeous," smart, funny, sensitive and unparalleled in the sack, but unfortunately also a struggling writer who lives in a "grotty" (but clean) bedsit. Libby decides to have fun in bed with Nick and not fall in love, because he's not rich and she doesn't like his left-wing, blue-collar friends. They do have lots of great sex, until Nick breaks up with Libby because he is too attracted to her and isn't ready for a relationship. Libby turns for comfort to her best friend, Jules, who is happily married to the "gorgeous" Jamie. On a girl's night on the town, Libby meets well-known financier Ed McMahon, who is very rich and very eligible, but not "gorgeous"—he is older, pompous, boring and the worst lay she has ever had, but when he proposes Libby accepts, as she sees her dream of becoming the idle rich at last coming true. Despite an annoying overuse of the word "gorgeous," Libby Mason manages to garner reader sympathy and even a cheer or two. There are no surprises here and a few loose ends dangle (allusions to Nick's hidden upper-class roots are never explained), but Green has a charming way with dialogue and sex scenes, making this a cheerful summer read. 3-city author tour. (June)