One day God came to Adam for a brief discussion. 
 
 "I've got some good news and some bad news." God said.
 
 Adam looked thoughtfully at his maker and replied, "Please give me
 the good news first."
 
 Smiling, God explained, "I've created two new organs for you. One
 is called a brain. This organ will allow you to be very
 intelligent, create new things, and carry on productive
 conversations with Eve. 
 
 The other organ is called a penis. It will allow you to reproduce
 your intelligent life form and begin populating the planet. Eve 
 will be very pleased that you are now equipped with this organ as
 she will be able to conceive children."
 
 Adam, very excited, exclaimed, "These are great and wonderful
 gifts you have given me. What could possibly be bad news after
 such great tidings?"
 
 God then looked upon Adam, and said with great sorrow, "The bad
 news is I only gave you enough blood to operate one of these
 organs at a time."