Little Sister...with dreamy eyes.
"Curtis, if you were exploring an enchanting forest,
looking for the fairy godmother
how far would you wander in?"

Older brother...with a tease.
"Half way."

Sister.
"Oh...I'd wander in farther than that."

Brother.
"No. You wouldn't."

Sister.
"Would too."

Brother.
"Would not."

Sister.
"Why not?"

Brother.
"Because after you wander in half way...
for the rest of the way you'd be wandering out."