What is the difference 
between girls aged: 
8, 18, 28, 38, 48, 58, 68?  
At 8 - You take her to bed 
and tell her a story. 
At 18 - You tell her a story 
and take her to bed. 
At 28 - You don't need to tell her a story 
to take her to bed. 
At 38 - She tells you a story 
and takes you to bed.
At 48 - You tell her a story 
to avoid going to bed.
At 58 - You stay in bed 
to avoid her story. 
At 68 - If you take her to bed, 
that'll be a story!!