Adam was sitting alone in the Garden of Eden, bored and lonely. God noticed this and said "Adam, I want to make you a companion like I did all my other creations. She will be smart and attractive. She will have a nice personality and will treat you like an equal. She will enjoy mating and want to do it often as well". Adam thought this was great! Then God said, "The only condition is I need you to give up your right arm to do it." Adam frowned for a minute, in thought. He looked up and said "What can I get for a rib?"