Father Unknown
Three mistresses were bragging about their posterities. The first woman proudly says "My child is the part of a great royal family of noble rich blood."

The second mistress is not to be outdone says, "My child is the part of a very wealthy and prominet social family."

The third mistress kept quiet. So other two pressured on her to speak up the roots of her progeny. Finallty she broke the silence and said, "Well, at that moment I was drunk blind in a party with my mouth sunk in a wine glass in a doggie position."