Rivalry — [s4e22] Sibling

: The bingeing eventually catches up with Lois, leading to a heart attack. She is rushed to the hospital for emergency liposuction, which returns her to her original size and ends their "weight-gain" phase. The Subplot: Stewie and Bertram

: Peter finds he is actually attracted to Lois’s new, much larger physique. The two rediscover their spark through what Peter calls "fat sex," and he actively encourages her to continue gaining weight. [S4E22] Sibling Rivalry

: A literal war for "The Hill" at the playground ensues, featuring high-tech weaponry and tactical maneuvers typical of Stewie's sci-fi style. : The bingeing eventually catches up with Lois,

The story of follows two chaotic plotlines: one involving Peter and Lois’s marriage and another centered on Stewie’s battle for preschool dominance. The Main Story: Peter and Lois The two rediscover their spark through what Peter

: After undergoing a vasectomy, Peter loses his sex drive, leaving Lois feeling neglected. To cope with her frustration, she begins overeating.

: Stewie encounters his half-brother, Bertram (born from a sperm bank donation Peter made years earlier), at the playground. The two share the same genius-level intellect and megalomaniacal ambitions.

: The episode includes a shot-for-shot parody of the film Better Off Dead during a drag race scene.