Homer becomes a minister after Springfield legalizes gay marriage (to boost their damaged reputation for tourists) and Patty comes out of the closet, much to the shock of her sister, Marge, who was naive to her sister's sexuality.

!! Tropes:
* ComingOutStory: Patty comes out of the closet.
* {{Content Warning|s}}: In America, this became the first episode to open with a "Viewer Discretion Advised" card (usually reserved for Creator/{{Seth MacFarlane}}'s cartoons, some of the racier episodes of ''WesternAnimation/BobsBurgers'', and ''WesternAnimation/SitDownShutUp'') before the opening, due to homosexual marriage being a hot-button issue with most U.S. viewers.
* OhCrap: Bart once he realized who he and Milhouse were pranking at the beginning of the episode.
* OnlyInItForTheMoney: The reason Homer became a minister. In fact, [[HypocriticalHumor he was holding a sign reading "Death Before Gay Marriage" before learning a minister can get $200 for each marriage he celebrates.]]
* TransparentCloset: In the words of Patty regarding her sexuality, "You could see it from space!"