Where did all the Cheerios go?

It never fails. I am always so impressed by how many Cheerios Marley has eaten. I tell her what I good job she did eating them. I know that some get into Kima's mouth before they even hit the floor (sometimes because Marley drops them, and sometimes because she enjoys handing them to Kima).

But then I pick her up and find where all the Cheerios are.

Honestly, I could see them getting on the side of her legs, but how do they under her legs?

Kima really loves meal time these days.