Family Guy Season 4 Episode 22
Sibling Rivalry
Peter gets a vasectomy and loses all his sex drive. Lois begins to gain weight, and as a result, Peter's regains his interest in his wife. When Lois' habits get out of control, she has a heart attack. The surgeon must remove Lois' fat to reach her heart, returning her to her normal weight. Meanwhile, Stewie's half-brother Bertram returns to confront him, where they have a war for control over the playground.
4 - 30Stu & Stewie's Excellent AdventureMay. 21, 2006- 4 - 29Bango Was His Name-OMay. 21, 2006
- 4 - 28Stewie B. GoodeMay. 21, 2006
- 4 - 27The Griffin Family HistoryMay. 14, 2006
- 4 - 26PetergeistMay. 07, 2006
- 4 - 25You May Now Kiss the... Uh... Guy Who ReceivesApr. 30, 2006
- 4 - 24PeteroticaApr. 23, 2006
- 4 - 23Deep ThroatsApr. 09, 2006
- 4 - 22Sibling RivalryMar. 26, 2006
- 4 - 21I Take Thee QuagmireMar. 12, 2006
- 4 - 20Patriot GamesJan. 29, 2006
- 4 - 19Brian Sings and SwingsJan. 08, 2006
- 4 - 18The Father, the Son, and the Holy FonzDec. 18, 2005
- 4 - 17The Fat Guy StranglerNov. 27, 2005
- 4 - 16The Courtship of Stewie's FatherNov. 20, 2005
- 4 - 15Brian Goes Back to CollegeNov. 13, 2005
- 4 - 14PTVNov. 06, 2005
- 4 - 13Jungle LoveSep. 25, 2005
- 4 - 12Perfect CastawaySep. 18, 2005
- 4 - 11Peter's Got WoodsSep. 11, 2005
- 4 - 10Model MisbehaviorJul. 24, 2005
- 4 - 9Breaking Out Is Hard to DoJul. 17, 2005
- 4 - 88 Simple Rules for Buying My Teenage DaughterJul. 10, 2005
- 4 - 7Brian the BachelorJun. 26, 2005
- 4 - 6PetardedJun. 19, 2005
- 4 - 5The Cleveland–Loretta QuagmireJun. 12, 2005
- 4 - 4Don't Make Me OverJun. 05, 2005
- 4 - 3Blind AmbitionMay. 15, 2005
- 4 - 2Fast Times at Buddy Cianci Jr. HighMay. 08, 2005
- 4 - 1North by North QuahogMay. 01, 2005
