: Stewie eventually wins the skirmish, successfully reclaiming his territory from his rival sibling. Notable Moments
: 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
: One famous gag features the letter "Y" being mocked by other vowels for only being a "semi-vowel". Family Guy S4E22: "Sibling Rivalry" Recap - TV Tropes : Stewie eventually wins the skirmish