[s4e22] Sibling Rivalry -

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

: After undergoing a vasectomy, Peter loses his sex drive, leaving Lois feeling neglected. To cope with her frustration, she begins overeating. [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 story of follows two chaotic plotlines: one

: Stewie eventually wins the skirmish, successfully reclaiming his territory from his rival sibling. Notable Moments Peter loses his sex drive

: 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.