Carl has a broken leg and his buddy Nick comes over to see him.
Nick says, “How you doin’?”
Carl says, “Okay, but do me a favour mate, run upstairs and get me slippers, me feet are freezing.”
Nick goes upstairs and sees Carl’s gorgeous 19-year old twin daughters lying on the bed.
He says, “Your dad’s sent me up here to have sex with both of you.”
They say, “Get away with ya… Prove it.”
Nick shouts downstairs, “Carl, both of ’em?”
Carl shouts back, “Of course both of ’em, what’s the point of fuckin’ one?”