Silly Adult Humor.....

***WARNING***
The following joke is a little adult in nature.

The newly born sperm was receiving instructions in conception
from the instructor: "As soon as you hear the siren, run for
the tunnel and swim in a straight line until you get to the
entrance of a damp cavern. At the end of the cavern you will
find a red, sticky ball which is the egg. Address it and say,
'I'm a Sperm. She will answer, 'I'm the Egg. From that moment
on you will work together to create the embryo. Do you
understand?"

The sperm nodded affirmatively, and the instructor said, "Then,
good luck!"

Two days later, the sperm is taking a nap when he hears the
siren. He wakes up immediately and runs to the tunnel. A
multitude of sperm swim behind him. He knows he has to arrive
first. When he nears the entrance to the cavern, he looks back
and sees that he is far ahead of the other sperm. He is able
to swim at a slower pace but does approach the red, sticky ball.

When, at last, he reaches the red, sticky ball, he smiles and
says, "Hi, I'm a sperm."

The red sticky ball smiles and says, "Hi. I'm a tonsil."