you changed dustin back to his original form and made it so nobody remembered his previous change and then you start thinking of the best ways to get back at him.
suddenly you get an amazing idea
whaat if you made him more feminine
*****
after deciding how to get back at dustin you turn yourself invisible and followed dustin around waiting for the perfect time to steike. until finally that time areived.
dustin was in the locker room after his PE class and completely naked as he was in the showers and you knew all the guys could see his naked body. you wanted everyone to be aware of the change so dustin would feel absolutely humiliated and embarrassed