Rape ‘joke’ On Family Guy/Simpsons Crossover Episode [VIDEO]

A joke in the crossover episode of Family Guy – in which the Griffins from Family Guy meet the Simpson family from The Simpsons – is already causing controversy.
The line “your sister’s being raped” as a punchline, has drawn criticism from conservative commentators in the US.
The line is featured in a scene in which misbehaving son Bart Simpson teaches Family Guy’s Machiavellian infant Stewie the art of prank phone calls.
Bart calls Moe’s Tavern, the frequent target of such calls, and asks for a patron “last name Keybum, first name Lee”. The tavern’s owner, Moe Szyslak, then asks his patrons: “Do I got a leaky bum?”
Stewie, misunderstanding the structure of prank calls, then redials Moe’s. “Hello, Moe?” Stewie says. “Your sister’s being raped.”
A spokesman for the conservative group, The Parents Television Council, said his organisation was “troubled” by the joke, which was featured in preview material and a trailer for the episode.