South Park S11 E02 Cartman Sucks

"Four boys. One f**ked-up town."

Butters' dad sends him off to special camp to "Pray the Gay Away" when he believes that his son is bi-curious after catching him in a compromising position with Cartman. Meanwhile, Cartman does his best to retrieve a photo of him in that compromising position before too many people find out about it.