The girls wrestle with the onslaught of 20-something girls when they are invited to a beach party in the Hamptons. Charlotte suffers a nasty punishment for passively lying about her age: her even younger toy-boy Greg gives her crabs. Sam fires her assistant Nina, only to find she is hosting the A-list party in the Hamptons using Sam's contact list. Carrie has an eager young writing admirer in Laurel and a bigger admirer in doctor Bradley Meego. Her weekend is ruined, however, when she finds Mr. Big there, back from Paris, with a new 20-something girlfriend, Natasha.

Three of the girls deal with loved ones from their past. For Carrie it's trying to become just good friends again with Mr. Big, who now is with Natasha and even tells her they are already engaged. For Charlotte it means the pony Taddy which threw her off as a child, or a substitute horse. For Miranda it's becoming friends again with barman Steve, but then they get physical again... Samantha however finds by chance a new, huge hunky man who seems about as cocky as she is, and proves he has a cock of matching (record) size which even she may not be able to handle.

Charlotte gets depressed just by reading all women in "The New York Times" Sunday edition wedding announcements are younger then our quartet, but stumbles on Carrie's nightmare: Mr. Big's marriage to Natasha - her answer is to spend a fortune in order to outshine the bride to be. Miranda's new cleaning lady, Magda, makes her feel guilty not to be more of a housewife and for having sex toys. While Charlotte feels nasty just being naked in an all-female health spa, Samantha books an extra massage when told Kevin also gets intimate, but ends up being thrown out for taking the initiative.

Miranda and Steve are finally feeling comfortable together, until she watches the laundry. Samantha has hot nights with a doctor, and decides to follow his example taking Viagra purely for recreational purposes. Charlotte is inspired by a book to start looking for a fiancé more methodically, and commandeers a wedded friend of hers, allegedly the ideal ally, to tell his friend Phil he is supposed to become her dream date - when he stands up the all too eager would be-bride at the opera, she goes with Carrie, who was just getting comfortable with Aidan but suddenly crosses glances with Mr. Big.

Now that Miranda and Steve have fallen out of love over parenthood, they painstakingly live apart in the same flat... At Aidan Shaws's design fair, Carrie bumps into Mr. and Mrs. Big. Later, a drunken Big blurts out to Carrie that he not only wants a divorce but also wants her back. Then, when Aidan generously starts improving her apartment, the noise drives her to a hotel... Charlotte is convinced Trey is ready to propose and is presented to his mother Bunny MacDougal. She seems to control him masterfully. Later, Charlotte uses Bunny's sleeve rubbing trick and makes him thoughtlessly accept a wedding proposal by her. She instantly regrets it because it lacks the romance she desires... Sam likes giving blow-jobs, but her present lover, Adam Ball's sperm tastes really bad.

Charlotte's wedding planning panic is easily solved when Sam refers her to gay stylist Anthony Marantino, 'the Italian mother she never had'. Paranoid Miranda worries about a 'scary' man in a restaurant's sandwich-suit saying "eat me" in a 'woman-unfriendly way'. When Samantha finally meets her male sexual counterpart Tom Reymi, eagerness to 'do it' in his swing makes her overcome an old pathological fear for aids-tests. Carrie is torn between sweet Aidan and exciting adulterous Big who wants to come out, but when Natasha returns early...

Upset by a hateful glance from Natasha who saw the quartet in a restaurant, Carrie loses her way and gets robbed of not just valuables but, far worse, her favorite designer sandals. When she files a report, the NYPD detective and Miranda immediately fall for each other. Now that Charlotte has lost all hope in Trey's potency, her lust wanders off to the McDougal's hunky bare-chested gardener; when her lips follow, the family accepts it, even Trey, but she can't handle this emotional neglect. When Samantha gets calls for another Sam Jones who gives a mega-party, she takes Carrie there to finds it's a virgin boy who lusts for her at first sight.