 While most child characters on the show are foul @-@ mouthed , Kenny is often even more risqué with his dialogue . Parker and Stone state that they depict Kenny and his friends in this manner in order to display how young boys really talk when they are alone . While Kenny is often cynical and profane , Parker notes that there nonetheless is an " underlying sweetness " aspect to the character , and Time magazine described Kenny and his friends as " sometimes cruel but with a core of innocence " . He is amused by toilet humor and bodily functions , and his favorite television personalities are Terrance and Phillip , a Canadian duo whose comedy routines on their show @-@ within @-@ the @-@ show revolve substantially around fart jokes . Kenny is shown to desire intercourse in the episode " The Ring " , when Kenny gets a girlfriend and is overjoyed to find out that she has a reputation as a slut . Kenny is also lecherous , and often portrayed as being eager to do and say disgusting things in an attempt to impress others or earn money . Conversely , his alter @-@ ego Mysterion is seemingly mature , principled , and serious @-@ minded , the only exception being one instance in " Mysterion Rises " in which he takes delight in irritating Cartman . As Mysterion he convinces his parents to take better care of themselves and their children , as seen by their reaction when he questions them about the cult of Cthulhu . He also uses his disguise to protect his sister Karen ( who refers to Mysterion as her " guardian angel " ) , as revealed in " The Poor Kid . " Despite his character flaws in all of his guises Kenny is usually depicted as being uncommonly selfless , even dying for the sake of others . 
