I think Flo made the bigger mess, but given GG's age, and the amount of effort that the kid put into filling out his poofy diapey so well, he has Flo beat by a mile. The smelly squishy diaper alone, is enough to let Flo know that GG is the king. And so Flo regretfully crowns the young cub as the stinky king, thus granting him his well-earned diaper change, while Flo sits in his own humiliation