Would I Lie to You? is the tenth book of the Gossip Girl created by Cecily von Ziegesar. It is the second ghost-written book in the series. It was released in October 2006.

Plot Summary

Serena and Blair become fashion muses for famous designer Bailey Winter. Upon arriving, they discover that he has hired two foreign models to imitate their every move. But the fakes get sick of being Blair and Serena's lackies so they start to pull little tricks that turn out to be harmful. They also find out that Nate is Bailey's neighbor: Dan and Vanessa become roommates because Vanessa's sister kicks her out of their apartment. Vanessa gets a job as a nanny to twins. She then goes to the Hamptons to be their nanny while they are on vacation. One day she gets sick of working and decides to look for B&S but Bailey makes Vanessa his new muse and she accepts. Dan gets a job at a bookstore were he meets Greg. Dan becomes gay but then decides that he loves Vanessa. Nate didn't receive his diploma so he starts to work for his lacrosse coach so he can earn it. B&S get sick of being muses so they tell nate to take them home. They end going to Serena's house in Manhattan. They then decide to go to her house in Connecticut for a party thrown by her brother. Blair and Nate get back together causing Serena to get jealous. Serena then leaves a note in Nate gloves department confessing her feelings. But Blair finds the letter first and rips it up.