Sperm Named Stanley

 Once upon a time, there was a sperm named Stanley who lived with many thousands of other little sperm. But Stanley was different.
Everyday, he would limber himself up and exercise vigorously while the other sperms just sat around doing nothing.
One day, a fellow sperm came up to Stanley and asked, "Hey Stan, why do you keep working out like this?" To which Stanley replied, "You know Clyde, It only takes one sperm to get a female pregnant, and seeing how there's thousands of us, and only one egg, Well, when that special day comes, I'm gonna be that sperm!"
Not long afterwards, Stan and his friends felt the onrush of excitement as they prepared to be released to perform their great mission in life, and sure enough, at the moment of climax, there was Stanley, fit as a fiddle swimming way ahead of the pack!
Suddenly, Stanley turned around all of a sudden and started swimming back as fast as he could! As he passed the other fellas, Stanley screamed,
"IT'S A BLOWJOB! IT'S A BLOWJOB!!!"