Credit goes to Klotzilla
Follow-Up to this
https://www.furaffinity.net/view/34860818/
Done by someone else, because artist wasn't interested.

This is the aftermath of after being used and clean from Mercury and Kimo. Don't let those smiles fool you, except for Jr. He thinks he's wearing a fancy diapersuit. After being a diaper for few days, they'll eventually morph into diapercritters permanently. Bowser's putting on a bright face to and practicing baby talk for when he grovels to Pampaku, only he can reverse the effects with his inhale. Its either swallow his pride or be the laughing stock of his minions.

Bowser and Bowser Jr. belong to Nintendo.