A cruise ship sinks and the only survivors are a dentist and a super model.
They manage to swim to shore on an isolated island.
As time goes by,they start to do what comes naturally.
One day a crate full of men's clothing washes up on the beach.
The dentist suggests that since it'll probably be a while until they are rescued,that they play a little game.
He convinces the model to put on a suit,hat,and wingtips.
After a week or so,he asks her if he can draw a mustache on her "just for fun".
She agrees and about a week later,he says,just for fun,can I call you Bob?
This strikes her as a little weird,but she figures,well we've been here for a while,and he's been pretty nice,so she says "sure".
One day he says, hey Bob, you'll never believe who I've been screwing!