A mother is  driving her little girl to her friend's house for a play  date..

' Mommy ,' the little girl asks, 'how old are  you?'

'Honey, you are not supposed to ask a lady her age,'  the mother replied.
'It's not polite.'

'OK', the  little girl says,
 'How much do  you weigh?'

'Now really,' the mother  says,
 'those are  personal questions and are really none of your  business.'

Undaunted, the little girl asks, 'Why did you and  Daddy get a divorce?'

'That's enough questions, young lady!  Honestly!'

The exasperated mother walks away as the two  friends begin to play.

' My Mom won't tell me anything about  her,' the little girl says to her friend.

'Well,' says the  friend,
 'all you need  to do is look at her driver's  license.
 It's like a  report card, it has everything on it.'

Later that night the  little girl says to her mother,
 'I know how old  you are. You are 32.'

The mother is surprised and  asks,
 'How did you  find that out?

'I also know that you weigh 130  pounds..'

The mother is past surprised and shocked  now.
'How in Heaven's name did you find that  out?'

'And,' the little girl says  triumphantly,
 'I know why you  and daddy got a divorce..'

'Oh  really?' the mother asks.. 'Why?'

'Because you got an F in sex..'