S4E11 · The One With Phoebe's Uterus

Complete story — includes the ending

Chandler has not had sex with his girlfriend, Kathy, ever since they got together due to the former’s fear of not being able to “fill Joey’s shoes”. Monica and Rachel then offer Chandler some advice on improving his bedroom performance, leading to Kathy expressing her endless gratitude to Monica. Ross lands Joey a job as a tour guide at the museum, which ultimately results in the latter’s disappointment when he witnesses an existential class divide within the museum. His friendship with Ross becomes strained when the latter is not willing to sit with him in the lunch room due to their designation differences. Guilt-ridden by the lunch incident, Ross decides to make amends to Joey by rectifying the class divide in the museum the next day. Phoebe's brother, Frank Jr., and Alice have eloped and tried to conceive naturally many times, without any success. The couple then asks Phoebe to carry their baby. Phoebe’s birth mum decides to give her puppy to Phoebe for a few days to help the latter make her decision. Phoebe eventually decides to fulfil Frank Jr.’s and Alice’s wishes.