Idk if this is above your boundaries or not but hear me out on somnophilia with kyutters/butkite. So like imagine Human kite flies up to Butters bedroom and sneaks in through Butters' window into his bedroom. Human kite takes Butters pjs off along with his own pants/trousers, he slifts up Butters' leg onto his shoulder before slowly pushing into Butters' hole. He procedures to softly fuck Butters while he sleeps and mumrmers abt his Uncle Budd. Eventually Kyke finishes inside Butters and leaves. Butters wakes up confused, naked and full of cum 😋 (sorry if this is not in your boundaries btw I just needed to get some fanfic ideas off my chest)