'''Airdate: November 25, 2012'''

Lois is not very excited about her upcoming birthday, but Brian reccomends throwing her a surprise party. Lois walks into her house and everyone surprises her. During her surprise party, after Peter reads a poem that lowers Lois excitement even further and [[TearJerker reduces her to tears.]] Because of this, she decides to turn her life around by adopting a different, younger lifestyle with longer hair after a makeover and shopping trip. Her new lifestyle causes conflict within Peter who is not sure about the changes but certainly likes most of Lois' new persona. But her new lifestyle soon begins to wear on him. When he gets tired at a party, he becomes a drag on Lois and she splits off to party with younger girls. Peter complains about her behavior back at home. On television, a report regarding Justin Bieber shows Lois hanging out with teenage girls. Lois then sneaks into the concert with intentions to seduce Bieber but Peter bursts in and beats the tar out of him. After Peter demands that Lois come home, she refuses, and brings up the names Peter called her. After Peter apologizes for acting like a jerkass, he admits that he really likes Lois for who she really is. When Bieber is called back onstage Peter is forced to go out and substitute “Conway Bieber.” Back home, Peter recites his love for Lois, but messes up her age. After she corrects him, he snaps for her to get out.

Meanwhile, Stewie Griffin finds a turtle in a pond in a park and decides to take him back home intending to make a pet out of him and names him Sheldon. Sheldon decides to extract revenge for being removed by ruining the family's life. When Stewie has a close call with Sheldon in the vicinity he begins to get suspicious. Sheldon's attempt at revenge is revealed late one night and Stewie is forced to flush him down the toilet. When he reaches the end of the sewer pipe, he returns for more revenge. Stewie finds Rupert's and another stranger’s head in boxes and vows to get even with Sheldon. After Sheldon bursts into Stewie's room for a showdown, Stewie nearly loses his fight until saved by [[Franchise/SuperMarioBros Mario]] who jumps on Sheldon.

!! "Lois Comes Out Of Her Shell" provides examples of '''(YMMV goes [[YMMV/FamilyGuyS11E6LoisComesOutOfHerShell here!]])'''

* BlondeBrunetteRedhead: Lous and two other girls she hangs out with.
* JerkWithAHeartOfGold: Peter starts out as a {{jerkass}}, but eventually turns into this in the end. Brian was this because he suggested a party and called Peter out on his jerkassery. Lois too.
* ReptilesAreAbhorrent: Sheldon