While working on their wedding vows, Monica reveals the truth about her visit to Chandler's room while the group was in London. Meanwhile, Joey gets ordained as a minister through the Internet so he can officiate the wedding.
Joey starts to get uncomfortable with protecting Monica and Chandler's secret, especially when it places him in embarrassing situations with the rest of the group.
Phoebe and Rachel catch Chandler getting into a car with a blonde woman and think he's having an affair. It turns out that the woman was Monica and Chandler's realtor, and the two are buying a house in Westchester.
Monica obsesses about anybody damaging her best china. Amy, who is self-absorbed and can't remember anybody's correct names, thinks that if Rachel and Ross die, she will then get custody of Emma, but Rachel and Ross tell her that Monica and Chandler are going to get Emma.
While babysitting Emma, an ovulating Monica wants to become romantically intimate with Chandler but their privacy is compromised because they can't leave the infant alone or she'll scream bloody murder.