originally planned as a bigger pic or an alt pic which I may do in the future, which turns out to be a dream that one of the fillies is having… question is… who’s having it?
 
Sweetie Belle who finally realized how to humiliate Diamond Tiara after being pushed to far as to drug her drink and take her back to Rarity’s who happens to have a bondage dungeon in her basement? To torment the little filly until she herself is satisfied with her new found play thing?  
or  
Diamond Tiara fantasizing a hidden fetish that she keeps to herself, waiting to be abused and humiliate by one of the CMC mainly Sweetie Belle (who she calls Sweetie Dom) to punish her for all her bullying which is why she bullies them so much wanting to be punished for her misdeeds.
 
YOU DECIDE!!

imported from https://derpibooru.org/images/894375