Carrie is desperately lonely in Paris as Petrovsky is spending so much time on his new exhibit. The chemo treatments are killing Samantha's sex drive. Miranda must take care of Steve's mother after she has a stroke. Charlotte and Harry try to adopt a baby. Big finds Carrie in Paris and says the words she's been waiting six years to hear.

After learning of Big's engagement, a freaked-out Carrie tries to cope with the ramifications. Miranda sleeps with Steve for the first time after their breakup. Charlotte tries to overcome her fear of horseback riding. Samantha dates a guy who's "Mr. Too-Big", determined to overcome his over-endowment.

Carrie is reluctant when asked to be a celebrity model in a high-profile fashion show. Miranda gets a lesson in confidence when a buff guy at the gym asks her out. Charlotte works up the courage to look at her "depressed" vagina in a hand-mirror. Samantha immortalizes herself by having nude photographs taken.

Carrie is shocked to find out that Big is moving to Napa, California and plans to give him a New York send-off. Charlotte begins dating another recent divorcé. Miranda prepares for the new baby as her delivery date nears. Samantha suspects Richard may be cheating on her.

Carrie's laptop crashes, and when Aidan tries to help, she pushes him away. Miranda's mother dies unexpectantly, but at the funeral, her family is more upset by her single status. Charlotte becomes the "Martha Stewart of funerals". Samantha "loses" her orgasm.

Before joining the Russian in Paris, Carrie has one last dinner in New York with Samantha, Charlotte and Miranda. However, life in the City of Light doesn't live up to her expectations. After being told-off by Carrie before the dinner, Big goes to girls for advice; they tell him to go to Paris and find their girl.

Carrie struggles to find the right time to tell Aidan about her affair. Miranda tells a guy she's a stewardess in hopes of getting a date. Charlotte has her dream wedding and marries Trey MacDougal—even after attempted late-night tryst reveals Trey's serious shortcomings. Cunning linguist Samantha sleeps with Trey's Scottish cousin, despite being unable to understand him.

Berger returns, but then breaks up with Carrie with a Post-It note. Miranda finally loses all her baby-weight and rediscovers her "skinny jeans". Charlotte decides she wants a small wedding. Samantha is reluctant to be labeled as Smith's "girlfriend".

Carrie unexpectedly runs into Mr. Big—and his new 27-year-old girlfriend, Natasha—at a Hamptons party. Miranda tries in vain to have some mature fun in the Hamptons. Charlotte pretends to be in her twenties so she can date a cute 26-year-old. Samantha's 25-year-old ex-assistant is hired to throw a big Hamptons party using her Rolodex for the guest list.

Carrie dates a hunky comic-book store owner who still lives with his parents. Miranda gets braces. Charlotte is shocked when she catches the supposedly impotent Trey masturbating. Samantha's latest client is Jenny Brier (Kat Dennings), a 13-year-old Jewish-American princess, planning her million-dollar bat mitzvah.

Carrie is reluctant to tell Aidan that she had an abortion when she was 22. Charlotte discovers she only has a fifteen percent chance of getting pregnant naturally. Miranda finds out she's pregnant by Steve, and debates whether or not to keep the baby. Samantha gets Lucy Liu as a client and tries to use the relationship to her advantage.

Carrie meets fifty-something Russian artist, Aleksandr Petrovsky (Mikhail Baryshnikov), at a gallery. Miranda's boyfriend Robert says "I love you" but she cannot say it back. Charlotte is delighted to discover she's pregnant — then devastated when she miscarries. After finding one gray hair down under, Samantha dyes her pubic hair with shocking results.

A frustrated Carrie tries to get Big to make time to meet the girls. Miranda meets Steve Brady, a cute bartender who wants to be more than a one-night stand. Samantha dates an incredibly wealthy man in his seventies with a sumptuous lifestyle and a pocket full of Viagra.

Carrie is horrified when Big casually tells her he's moving to Paris for seven months. Miranda dates a man who only wants to have sex in places where they might get caught. Charlotte meets Buster, a high-end shoe salesman with a serious foot fetish. Samantha introduces the girls to a hot new S&M restaurant.

Carrie continues her affair with Big, and tells Samantha after a girly night and Miranda after a drink on their cocktail night. Charlotte finds out by accident, when she bumps into them on the street together. No longer meeting in hotels where nobody knows them in to avoid getting caught,Natasha comes home early from the Hamptons catching Carrie in Big's apartment. She chases Carrie out, falls down the stairs and cracks her tooth. Carrie takes her to A&E where she tells Big "they are so over they need a new word for over". Miranda tries continually to get Carrie to end her affair. Charlotte hires stylist Anthony Marentino to help her find the perfect wedding dress. Samantha meets the "male version of herself", but he refuses to sleep with her because she hasn't had an HIV test.

Carrie and Aidan have a huge fight over the clutter in her apartment after Aidan moves in. Charlotte and Trey have a huge fight when he brings home a cardboard baby as a gag gift. Miranda goes on a date despite being pregnant. Samantha finally gives in to Richard's romantic overtures.

Carrie finds that a casual fling with Harry's best man is a pain in the neck. Miranda is scared of meeting Steve's new girlfriend. After Harry accidentally sees Charlotte in her wedding dress before the big day, she is convinced their wedding is cursed. Self-sufficient Samantha struggles without a man around.

Carrie finds Aleksandr's old-world romantic attention a little overwhelming. Miranda prepares for her non-traditional wedding to Steve. Charlotte and Harry's romantic French dinner leads to a night of the runs. Samantha considers a breast augmentation and receives some unexpected news.

Carrie meets with Big for the first time since his marriage ended. Miranda gets frustrated when she thinks the Chinese take-out girl mocks her stay-at-home lifestyle. Charlotte moves back into her old apartment and gets an up-lifting visit from Trey in the middle of the night. Samantha feuds with the raucous transsexual prostitutes who conduct business outside her apartment at two in the morning.

Aidan proposes to Carrie. Charlotte discusses adoption with Trey, but hits a wall when Bunny finds out that the baby could be Chinese. Miranda tells Steve she's having his baby. Samantha starts sleeping with her boss, Richard Wright.

Carrie finds time away from stay-at-home boy Aidan with a gay Aussie shoe distributor at the exclusive Bungalow 8. Charlotte and Trey separate permanently after their apartment is photographed in House & Garden. Miranda accidentally outs her co-worker after he tells the office gossip that she's pregnant. Samantha tells Richard she loves him while high on ecstasy.

The girls attend the Hamptons wedding of an over-the-hill socialite and a lounge singer whom they all thought was gay. Carrie encounters Jack Berger again. Charlotte goes public with her relationship with Harry. Miranda gets more comfortable with the baby and with her role as a mother. Samantha throws a huge party at Richard Wright's Hamptons house.

Carrie's shoes are stolen at a party; the hostess (Tatum O'Neal) not only refuses to apologize, but shames her for her extravagant footwear — and lifestyle choices. Miranda gets chicken pox, and she flirts with the handsome black doctor who just moved into her building. Charlotte must adjust to living with Harry (and his tea bags) in her pristine apartment. Children misbehaving in nice restaurants annoy Samantha.

Petrovsky hosts a dinner party for Carrie's inner circle, and makes a shocking announcement. Later, the death of an old party friend (Kristen Johnston) helps Carrie reach a big decision.

Carrie's relationship with Mr. Big has been going on for long enough that it is becoming less physical, especially after she farts in bed. Charlotte is dating a man who isn't interested in sex anymore thanks to the side-effects of Prozac. Samantha discovers that not having sex can be erotic. Miranda realizes that she hasn't had sex for months.