Sibling Rivalry
| Episode Number | 22 |
|---|---|
| Season | 4 |
| Aired | 2006-03-26 |
| Overview | 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. |
| Runtime | 23 minutes |
| Absolute Number | 72 |
| Finale Type |