Why?

It's here...the dreaded "why?" question.

Where we going, Mommy?
To the park.
Why?
To exercise with Maggie and Jessica.
Why you exercise, Mommy?
Because it's good for you.
Why it good for you, Mommy?
It gets your heart pumping.
Why, Mommy?
It gets your blood flowing.
Why, Mommy?
Because.
Oh, okay. (brief pause) Where we going, Mommy?