JOKE

A little boy was visiting his grandmother and the young boy asked his grandmother,"grandma, how old are you"? She replied, "you shouldn't ask me questions like that". A few minutes past and the young boy asked his grandmother another question, "how much do you weight"? The grandmother replied, "you shouldn't ask me questions like that"! The following week when the little boy went back to school he told his friends about the coversation he had with his grandmother and how he was unable to get an answer from her. The little boy's friends advised him to look on her drivers license, all the information will be there. The next week when the little boy was visiting his grandmother he told her he knew how much she weighed and how old she was. The grandmother didn't believe him until he told her,"you weight 130lb., and you are 65 years old". Then the little boy in a bashfull way wispered to his grandmother, "I also know you got an F in Sex".