A guy is shipwrecked on a celebrity cruise and he wakes up stranded on a desert island with Nicole Kidman.
Anyway, after a few weeks they are having passionate sex. This is all fine and dandy for a bit, but the guy starts getting a bit depressed. Nicole comes up to him on the beach one day and says, "What's the matter?"
He says "Well, it's wonderful, I'm on a tropical island with a beautiful woman who I love, but...but... I miss my mates. I miss going down the pub with them."
She says, "Well, I'm an actress. Maybe if I get dressed in some of those male clothes which were left behind in the trunks, I can pretend to be one of your friends, and you can talk to me as if you were down the pub."
It sounded a bit weird but he thought he would give it a try. So she gets into the mens' clothing and they sit down next to each other, And the guy goes "Hey Joe, You'll never guess who I've been fucking."