A middle-aged couple had two stunningly beautiful blonde teenage daughters.
They had been married for a number of years, but finally decided to try one last time for the son that they always wanted.
After months of trying, the wife became pregnant and sure enough, nine months later she delivered a healthy baby boy.
The joyful father on hearing the news rushed to the nursery to see his new son.
He took one look, and was horrified to see the ugliest child he had ever seen.
He went to his wife and said that there was no way he could be the father of that child.
“Look at the two beautiful daughters I fathered” he said.
Then he gave his wife a stern look and asked, “Have you been fooling around on me?”
The wife just smiled sweetly and said to him, “Not this time……”
Image used under a Collective Commons License from: https://www.flickr.com/photos/adam_jones/42869645732