How They Mock Us

My oldest two have a new favorite game these days. One of them (let's say my daughter) will start by counting to some random number.

She: one, two, three, four, five, six, seven...SPANKING!
They both laugh hilariously.
He: one, two, three, four...SPANKING!
Both laugh hilariously again.
She: one, two, three, four, five, six, seven, eight, nine, ten, eleven...SPANKING!
More hilarious laughter.
He (faster now): one two three four five six seven eight...SPANKING!
Rolling on the ground laughing.
She: one...SPANKING!

This goes on until they're tired of laughing. Even my youngest laughs because she likes to copy them. Well, at least they're united and not fighting like usual.