Story about Story.

At the age of 8 - You need to tell her a story at bed.

At the age of 18 - You need to tell her a story to take her to bed.

At the age of 28 - You need not tell her any story to take her to bed.

At the age of 38 - She will tell you a story to go to bed.

At the age of 48 - You need to tell her a story for not going to bed with her.

At the age of 58 - If you go to bed with her, it will be a story.