My son has always had a fascination with belly buttons. I don't know why. He just seems to think they're cute.
"Mommy, does the dog have a belly button?"
"Yes. Somewhere under all that fur is a belly button."
"Can I look?"
"Have at it, kid. But don't blame me if he nips your fingers."
He searched and searched, but could not find the belly button on our German Shepherd. Maybe he's a mutant. That would explain a lot of things.
"Mommy, what are belly buttons for?"
"What do you think they're for?"
He thought about that. "Well, I know what mine is for."
"It's for pressing. And when I press it, I go 'beep.'"