Sibling Rivalry

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Family Guy - Season 4 - Episode 72 - Sibling Rivalry

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About this Family Guy episode:

Family Guy - Sibling Rivalry is the 22nd episode of the Family Guy Season 4.

In this Family Guy episode, Peter gets a vasectomy after a pregnancy scare from Lois, which puts a kibosh on their sex life. Lois begins overeating and gets fat, which spices things up between them. Lois suffers a heart attack and her fat is reduced from her body, returning her back to normal. Meanwhile, Stewie's equally-malicious sperm brother from "Emission Impossible" is born and battles Stewie for control over the playground. Stewie eventually wins the battle at the episode's climax.