Taking A Woman To Bed

What is the difference between

girls/woman aged: 8, 18, 28, 38, 48, 58, 68, and 78 ?

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 --

She tells you 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!

At 78 --

What story??? What bed??? Who the hell are you???

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