Q. What is the difference

Q. What is the difference among girls aged 8, 18, 28, 38, 48, 58 & 68?
At 8: you take her to the bed & tell her a story.

At 18: you tell her a story & take her to bed.

At 28: u don’t need to tell her a story to take her to bed.
At 38: she tells u a story & takes u to bed.
At 48: u tell her a story to avoid going to bed.
At 58: u stay in bed to avoid her story.
At 68: if u take her to bed, that will be a story….!