Wanting to further herself in the study of magic, Twilight decides to go to her old mentor in an effort to learn more about transformation spells. Not wanting to turn her student away, Celestia agrees to have a study session with her. Of course sometimes the most simple of spells can backfire on even the most talented of ponies and when Celestia accidentally switchs bodies with Twilight, the younger princess decides to take advantage of the situation and decides to punish the newly switched princess with a punishment.

A kinky punishment.

A little gift for TittySparkles

Edited to a more satisfying plot.