Coup Deville.Lil is invited to a party with all of the popular kids from school, provided her brother does not come with her, as the kids believe he is “socially inept” and “hygienically challenged”. Lil begins to pull away from Phil, even though he tries to remain close to her. When Phil and Lil are partnered together for a science project, Lil freaks out and angrily reminds everyone that she and Phil are separate individuals and not a single person, and embarrasses Phil. When their parents, Betty and Howard, arrive home excited for their family vacation trip to 'Nick and Dick’s Twin Canyon Resort' Lil refuses to go. Knowing how unhappy Lil became, Betty allows Lil to move into their family’s office/workout room to give her a space of her own. However, Phil struggles to deal with the changes and misses having Lil in his life, despite Dil’s attempts to become Phil’s new twin. When Lil goes to her party, her new friends begin to make fun of Phil, which makes Lil upset and then realise how close to her brother she really is and she leaves the party after telling off the popular kids. In the end, Lil made up with Phil and agree to go to ‘Twin’s Canyon’ together...