Trama

When Phoebe finds out about Monica and Chandler, she and Rachel attempt to get them to confess their relationship.

When Phoebe discovers Monica and Chandler's relationship, she and Rachel try to mess with them. But chaos intervenes when Monica and Chandler find out what they're up to. Ugly Naked Guy is moving out, and Ross tries to get his apartment, but he has serious competition.

Ugly Naked Guy is moving, and Ross is trying to get his great apartment. While Rachel, Ross and Phoebe are in the apartment, Phoebe looks through the window and sees Monica and Chandler kissing. Joey is relieved that they can finally tell them that everyone knows about their relationship, but Phoebe and Rachel don't want to tell them, and have their fun by messing with them. Phoebe makes a pass at Chandler, and Rachel gives them all her laundry when Monica and Chandler go to "do laundry". Ross tries to bribe Ugly Naked Guy with muffins, but so many people want the apartment that his bribe looks trivial by comparison. Monica figures out that Phoebe knows about them, and that she is trying to freak them out by showing an interest in Chandler. Monica wants to mess with Phoebe and Rachel now, and gets Chandler to pretend he is attracted to Phoebe as well. Ross is looking for a way to bond with Ugly Naked Guy. Chandler invites Phoebe over so she can feel his bicep and "more" - therefore Rachel and Phoebe realize that Monica and Chandler are only messing with them, so Phoebe accepts Chandler's invitation. Ross visits Ugly Naked Guy and bonds with him by eating muffins with him naked. Chandler and Phoebe both wait for the other one to back down, but neither does, and they kiss awkwardly before Chandler gives up and yells out that he loves Monica. Now everyone except Ross knows officially. Ross gets the apartment, and sees Monica and Chandler through the window and freaks out.—Anonymous

The gang observes that "Ugly Naked Guy", who lives across the street from them, is moving out (he is packing his stuff in boxes and ironically most of the boxes are labeled as "clothes"). Ross (David Schwimmer), who has lived in Joey (Matt LeBlanc) and Chandler's (Matthew Perry) apartment since his botched wedding with Emily, wonders if he should try to get Ugly Naked Guy's apartment. He, Rachel (Jennifer Aniston) and Phoebe (Lisa Kudrow) visit it, and Ross is enthralled, but while he goes for an application, the girls see Chandler and Monica (Courteney Cox) having sex in Monica's apartment. Though initially shocked, Phoebe calms down after Joey and Rachel reveal the two have been together since hooking up at Ross's wedding. Toegther they distract Ross, so he doesn't see Monica and Chandler having sex. Joey, who has been keeping the secret for several months, is relieved that almost everyone knows. However, Rachel and Phoebe want revenge, and decide to mess with the duo by having Phoebe pretend to be attracted to Chandler (she squeezes his biceps and then laughs out loud at his silly jokes.. She says she hasn't been with a guy for far too long and didn't realize what she wanted was right in front of her). Chandler later informs a skeptical Monica that Phoebe was flirting with him.

Upon discovering that Ugly Naked Guy is subletting the apartment himself, Ross attempts to bribe him with a basket of mini-muffins. However, many people have bribed him with extravagant gifts such as a pinball machine and a mountain bike. Ross eventually acquires the apartment after he and Ugly Naked Guy share the mini-muffins whilst nude.

Monica overhears Phoebe flirting with Chandler (pHoebe pinches Chandler's butt), and realizes he was telling the truth. However, she also realizes that Phoebe knows about their relationship and is just trying to mess with them. They confront Joey, who inadvertently reveals Rachel knows as well. Chandler and Monica decide to turn the tables by having Chandler reciprocate Phoebe's advances; to which Rachel and Phoebe realize what the couple are doing and proceed to up the stakes. The game of chicken between the two culminates with Chandler and Phoebe going on a tense date in Chandler and Joey's apartment while Monica hides in the bathroom and Rachel and Joey eavesdrop in the hallway. After Phoebe and Chandler share an awkward kiss (Joey advises Phoebe to show Chandler her bra, as she is scared of them and cant work them), Chandler finally breaks down and reveals he is in love with Monica. Monica reveals that she is also in love with Chandler, shocking Phoebe who thought they were only in a casual relationship. Joey is relieved that he no longer has to keep their relationship a secret. However, the others inform him that they still have to keep it a secret from Ross, much to his chagrin.

In the credits scene, Ross shows his new apartment to his boss, Dr. Ledbetter, to try convince him that he no longer suffers from anger management issues. However, he then sees Monica and Chandler kissing through the window, causing him to angrily yell "Get off my sister!"