SEX

A four year old boy asked his Grandmother, who could not believe her ears, "What does sex mean?"  She was flabbergasted and decided to be cautious,  "Why do you ask?"  

He replied "My teacher in nursery school is always talking about it.".   The Grandmother was horrified and decided that something must be done about its but she needed to find out more..  "How often does the teacher use this word?"  He replied "she uses it every day -sometimes more than once".

By this time the Grandmother was getting very anxious and started taking notes.  "How does she use the word?" 

"Well she often goes out of the room and tells us to behave ourselves because she will only be away for 2 secs".