South Park — Episode 10: How to Eat with Your Butt

You are watching the episode How to Eat with Your Butt Cartman has finally gone too far when a prank involving Kenny's sweet cheeks results in him blowing a "funny fuse." After a photo of Kenny's better side finds it's way onto the side of a milk carton, an unusual couple arrives in South Park to claim their missing child. Much ass kissing ensues.