Pam's contractions start but she and Jim are determined to wait it out so that they can have more time together, and the rest of the office tries distractions.

Michael waits anxiously for the birth of Pam and Jim's child; back at the office, Erin makes Andy feel jealous after having lunch with a coworker.

Ross seeks advice from Phoebe's herbalist when he's afflicted with a mysterious skin condition on his butt; Monica worries that Pete may propose to her.

Monica must decide her future with Pete when he plans to enter the Ultimate Fighting Championship; Chandler has a problem when his new boss is slaphappy.

While at the beach, Phoebe meets a family friend with links to her past; Ross discovers that Rachel still loves him and must decide between her and Bonnie.

Ross chooses between Rachel and his bald-headed girlfriend Bonnie; Joey, Chandler, and Monica have a perilous encounter with a jellyfish at the beach.

Phoebe believes that her adoptive mother's spirit resides in her new pet cat; Monica goes on a date with Rachel's hunky high-school boyfriend.

Monica caters a party for her mom; Chandler's encounter with Rachel's boss leads to an embarrassing situation; an encyclopedia salesman takes advantage of Joey.

Joey attempts ballroom dancing in order to help Monica and Rachel keep their illegal sublet; Phoebe is attracted to one of her massage clients.

Chandler hits on a woman at Central Perk, not realizing she is Joey's new girlfriend; Phoebe tries to catch a cold because it makes her voice sexier.

LeBron James and super-agent Rich Paul team up with Anthony Davis to prank NBA star Draymond Green with an ultra-exclusive investment opportunity.

Olympic gold medalist Tara Lipinski unknowingly becomes the target of Anthony Davis's elaborate prank; former NFL quarterback Robert Griffin III attends.

Hoping to make a good impression, Leonard offers to do Penny the favor of signing for a delivery when she is unable to receive the package herself.

Once realizing that his future of ever getting close to Penny will never be, Leonard decides to engage in a one night stand with a fellow female scientist.

Christmas becomes a stressful time for everyone as Leonard's handsome colleague starts dating Penny and Sheldon pesters the gang with his gift etiquette.

Leonard and Raj try to help a heartbroken Howard heal by taking him to Las Vegas, leaving Sheldon locked out and forced into bunking with Penny.

A cute comic book artist threatens to put Leonard and Priya's relationship to the test; Sheldon tries really hard to spook the guys for Halloween.

Olympic gold medalist Tara Lipinski unknowingly becomes the target of Anthony Davis's elaborate prank; former NFL quarterback Robert Griffin III attends.