"Little Sperm" joke
As all the sperms were awaiting the big swim, little Freddy was being briefed by one of the elderly sperms. He said to Freddy, "Now you have to swim as fast as you can if you want to be the first one to the egg, and when you do get there, you have to say out loud, "Hello, I'm a sperm." And if you are the first one there the egg will reply, "Hello, I'm an egg." And then you can enter into the egg." So when it was time for all the sperm to start swimming Freddy swam as fast as he could without stopping. He was sure he was nearly there. He turned around to see how far back all the others were, and saw that they were very far behind. As he swam he suddenly found himself in a big moist chamber. He then saw a big round ball, so he swam right up to it and said, "Hello, I'm a sperm." He waited for it's reply. It then said, "Hello, I'm a tonsil."
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