[rockrabbit]

7,17,27.37,47,57,67,and 77.

At 7,You take her to bed and tell her a story.

At 17,you tell her a story,and take her to bed.

At 27,you don't need a story to take her to bed.

At 37,she tells you a story and takes you to bed.

At 47,she tells you a story to avoid going to bed.

At 57,you stay in bed to avoid her story.

At 67,you take her to bed,that'll be a story.

At 77,what story,who's bed,who are you?