Carrie obsesses about her perfect relationship when Aidan suggests she meet his parents. Miranda enjoys her intimate life with Steve. Charlotte gets upset when a married friend won't set her up with his bachelor buddy. Samantha tries Viagra while sleeping with a doctor.

Carrie runs into Big who confesses that he misses her and can't stop thinking about her. Miranda gets annoyed with Steve's childish habits when he suggests they have a baby together. Charlotte falls in love with Trey after only a few weeks of dating and is convinced he's "The One". Samantha believes she's hit menopause when her period is a week late.

Big tells Carrie that he's leaving his wife. Miranda deals with her breakup and Steve moving out of the apartment. After meeting the MacDougal family matriarch, Charlotte maneuvers Trey into making an "alrighty" proposal. Samantha is upset when dating a hot guy with "funky spunk".

Carrie feels guilty and wants to quit her affair with Big. Miranda enjoys phone sex with a co-worker from Chicago. Charlotte negotiates the terms of her prenuptial agreement with Trey's mother, Bunny. After celebrating her move to the new apartment in the exclusive Meatpacking District, Samantha's bout of the 'flu gives her a pessimistic outlook on life.

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.

Carrie meets with actor/producer Matthew McConaughey in LA to talk about optioning her columns to make a movie. Miranda wrestles with the level of open sexuality in Los Angeles. Charlotte uses the Internet to deal with Trey's impotence problem. Samantha meets a dildo model.

Carrie meets a publicity agent for celebrities who shows her the perks of the rich and famous in LA. Miranda meets an old friend from New York who's lost his East-Coast edge. Charlotte comes to LA after getting fed up with Trey's sexual problems. Samantha meets her idol, Hugh Hefner, and gets the girls invited to a party at the Playboy Mansion.

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 teaches at The Learning Annex—only her course on "How to Find Love" is as successful as her own love life. Miranda dates one of Carrie's ex-boyfriends (known as Mr. A--hole), whom she meets at the funeral of a dead never-met blind-date. Charlotte gets sexually frustrated with her sex life with Trey. Samantha gets in a fight with Charlotte about her attitude toward sex.

Carrie decides, after a broad-daylight Manolo mugging, that she must clear herself of bad karma and decides she needs to talk with Natasha about her affair with Big. Miranda dates a gorgeous NYPD detective and becomes self-conscious about her own looks. Unhappily-married Charlotte struggles with her lust for a hunky gardener; she and Trey decide to separate. Samantha meets another Sam Jones, who turns out to be an NYU student and desperate virgin.

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.

Carrie thinks about men and the future when no one shows up for her birthday party. Miranda confronts her married friends about her single life. Charlotte tries to deal with her separation from Trey. Samantha tries to seduce a celibate monk. The girls make a pact that they are soulmates, and men are nice guys to have fun with.

Carrie meets a jazz musician while on a pseudo-date with Big. Miranda tries to get more comfortable using the bathroom in front of her date. Charlotte is dismayed that Trey only wants to have sex in places where they can get caught. Samantha meets Maria, a lesbian painter, at Charlotte's gallery, and questions her own sexuality.

Carrie continues to date Ray King, the jazzman, but finds he has an ADHD problem. Miranda substitutes chocolate for sex. Charlotte deals with Trey getting a little too overconfident in bed. Samantha tells the girls she's in a relationship with Maria and is now a lesbian.

Carrie gets an invitation to the opening of Steve—and Aidan's—new bar, Scout. Miranda thinks she has a ghost in her apartment. Charlotte butts heads with Trey's mother, Bunny, when redecorating their apartment. Samantha's girlfriend Maria gets fed up with the many, many men from Samantha's past.

Carrie realizes she wants to get back together with Aidan. Miranda gets a surprise when she sleeps with "marathon man". Charlotte and Trey decide to start trying to have a baby. Samantha uses fake nipples and attracts a man who uses "baby-talk" during sex.

Carrie is dragged to Aidan's country home in Suffern, New York. Charlotte visits the MacDougal "compound" in Connecticut. Miranda yells at Steve when he tells her he has testicular cancer but has no clue about his condition. Samantha gets annoyed when her dates keep asking her what she's doing "next weekend".

Carrie invites Big up to Aidan's country home to talk. Charlotte tries to discuss her and Trey's infertility problems. Miranda sleeps with Steve to cheer him up after he has one of his testicles removed. Samantha tries to get the PR position for hotelier Richard Wright.

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.

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 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 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.

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.