Everybody thinks Monica is pregnant, but her denial quickly shifts the focus to Phoebe, who claims she is pregnant to cover for Rachel, the one who is expecting. When Monica realizes it is Rachel, she and Phoebe have her take an additional test to confirm it. Phoebe initially says the new test is "negative" causing Rachel to be sad and disappointed by the different result. Phoebe then says it is positive and that Rachel now knows how she truly feels about having a baby. Chandler surprises Monica by having taken dance lessons for their wedding reception, but his slippery shoes leave him with two left feet. Joey tries to impress Mrs. Bing's date, a Broadway director. Ross meets a beautiful woman named Mona at the reception. He switches his seating number to her table, but mixing up the number, he ends up at the children's, then has to dance with the little girls, which impresses Mona.

Special appearance: Elliott Gould as Jack Geller

Chandler and Monica are about to leave for their honeymoon as Rachel prepares to tell Ross they are having a baby. Phoebe and Joey try to get into Monica and Chandler's apartment by telling Mr. Treeger there is a gas leak. However, Treeger, who could not find the spare key, instead calls firefighters who break down the door.

Phoebe dates a guy who works for Monica, causing a problem when Phoebe wants to dump him on the same day Monica plans to fire him. Chandler's co-worker thinks his name is Toby. Rachel goes on a date with Joey's costar, Kash (Johnny Messner) despite being pregnant, and much to Ross' annoyance. Ross meets Mona again while at the coffee shop.

At Monica and Chandler's Halloween party, Phoebe runs into her sister's fiance, Eric (Sean Penn). Phoebe becomes attracted to him as they bond over Ursula's lies and bad behavior. Ross and Chandler arm wrestle ineffectually. Ross laments that his goofy "Spudnik" outfit makes him look like feces. Rachel, feeling maternal, asks to hand out the candy to trick-or-treaters, only to realize she is less maternal as she thought.

Chandler hires a maid to help Monica, but she soon suspects the maid is stealing her clothes. After getting Chandler to inspect a pair of jeans she is wearing that she thinks are hers, Rachel returns Monica's borrowed clothes. The maid quits, believing Chandler is a pervert. Eric wants to date Phoebe, but he is too reminded of Ursula. Ross attempts to secure the apartment of a dying Dutch woman for Rachel, while Joey wants Rachel to continue living with him.

Special Guest: Sean Penn as Eric

Monica invites a high school friend, Will (Brad Pitt) to her Thanksgiving dinner. Rachel finds out that Ross and Will (who was fat and is now slim and gorgeous) started a rumor during their senior year about Rachel having both male and female "reproductive parts". Joey tries protecting the Tribbiani "family legacy" by eating an entire turkey. Chandler and Phoebe sit on the couch, watching a game to avoid helping Monica with the dinner clean up.

Phoebe determines through tea leaves that she will soon meet the man of her dreams. This leads to a disastrous date with a disturbing man, then a pleasant meeting with a charming one at the dry cleaners. Rachel invents a crazy work problem to reduce the awkwardness of hanging out with Joey since his confession about his feelings for her. Ross tries to retrieve his 'faded salmon' shirt from Mona's apartment.

Special Guest: Alec Baldwin as Parker

Monica botches an attempt at giving a heartfelt speech for her parents' 35th anniversary party. Phoebe dates Parker (Alec Baldwin), who is overly-enthusiastic about everything which ultimately annoys the entire group, including herself. Ross and Rachel have to pretend they are married while at the Geller's anniversary party; Ross' "wedding toast" stirs feelings in Rachel.

Phoebe and Monica prepare for Rachel's baby shower and forget to invite Rachel's mother. During the shower, Monica tries desperately to seek forgiveness from Sandra, but to no avail. Rachel realizes she has no idea how to look after the baby after the birth, so her mother insists on staying with her for eight weeks, much to her and Ross' annoyance. Ross eventually gives Rachel the confidence to be a mom and Monica lets Sandra know she's furious at her spitefulness. Joey auditions for a job as a host for a new game show called Bamboozled that makes absolutely no sense, and Chandler and Ross help him practice.