South park bunny: please help me find this

Butters and Lilianna "Marjorine" refuse to help Cartman with his plan to hurt Kyle, Pip & Tweek. So Cartman finds blackmail on the Stotch twins  (he discovers they are constantly  abused by their  parents & grandma and are raped by  uncle Bud (uncle Bud lives with them after Aunt Nellie dies) and he over hears them  tell Bebe, Wendy, Pip, Tweek & Kyle about their crushs on Kenny (butters) and Mysterion (Lilianna). Cartman post it on school boards after he tells the whole school. The twins just walked into the cafeteria but no one noticed them (apart from Bebe who quickly runs after them but isn't able too catch them, they go to an abandoned cabin in the woods)