Once upon a time there was a sperm named Stanley. Stanley was a very healthy sperm. Hed do push ups and somersaults and limber himself up all the time while the other sperm just lay around on their fat asses not doing a thing.

One day, one of them became curious enough to ask Stanley why he excersised all day.

Stanley said "look pal, only one sperm gets a woman pregnant and when the time comes,I am going to be that one"

A few days later, they all felt themselves getting hotter and hotter, and they knew it was getting to be their time to go. They were realeased abruptly and , sure enough, there was Stanley swimming out of sight of all the others.

All of a sudden, Stanley stopped, turned round, and began to swim back with al his might. :Go back! Go back!" he shouted "Its a blowjob!"