One day Bill Clinton and Al Gore are pissing in the same bathroom. Bill notices that Al has a huge dick. "Shit", he says; "how did you ever make your dick that big?"

"Well", Al tells him, "Every night before I go to bed, I beat it on the bedpost fifty times. This also works wonders before sex..."

So, that night, Clinton sneaks in late, and starts beating the bedpost with his dick. Hillary rolls over and says "Is that you, Al?"