Odin and Thor had argued about which of them was the most virile, and set off to Earth to find a couple of willing maidens. Thor found a nice young Viking girl, who didn't waste time talking, and all night long, time after time, Thor kept on, without stopping, until the girl was so happy and exhausted, she could go no more. The following morning, realising that the girl would be well impressed at making love to a god, he decided it would only be polite to introduce himself, and with a big grin, he said, "Good morning, I'm Thor!" "You're Thor!" she exclaimed, "You think YOU'RE Thor? Lithen mate, I'm tho Thor, I can hardly pith!"