What's the difference between female at the ages of 8

What's the difference between female at the ages of 8, 18, 28, 38, 48 and 58? 08 - You take her to bed and tell her a story. 18 - You tell her a story and take her to bed. 28 - You don't need to tell her any story and take her to bed. 38 - She tells you a story and takes you to bed. 48 - You tell her a story to avoid going to bed. 58 - You stay in bed all day to avoid her story.