|The biology professor was discussing the high glucose level of semen when a blonde co-ed raised her hand.|
"Are you saying there's a lot of sugar in male semen?"
"Correct," responded the professor, adding more statistical material.
The same girl raised her hand again, "Then why doesn't it taste sweet?"
The entire class burst out laughing, her face turned bright red, she said not a word, picked up her books, and walked straight out of class never to return.
As she left, the professor added with a straight face, "It doesn't taste sweet because the taste buds for sweetness are on the tip of your tongue, not in the back of your throat!"