Fastest Sperm
Joe Sperm decided to get in shape, so when the big day came, he could be the one to find the egg. Every day, he ran long distance sprints, lifted weights, and anything else he thought would keep him in shape. The other sperm all laughed at him.
Finally, the big day came. Joe was off like a flash, and very soon, the other sperm lost sight of him. They all thought they had lost, when suddenly they saw Joe coming back like a bat out of hell, yelling, “Get back, you guys, it’s a hand-job!”