i thought of this months ago i think. well, actually, i thought of an idea for a little story, basically Celestia & Luna are int he middle of a battle with an enemy of some sort which ends with them for some reason them getting turned into fillies, the mane 6 find them after or during the transformation & they set out to get them back to normal again. i don’t know what the others would be doing but i think Fluttershy would most likely tend to the little princesses & comfort them during the difficult time.
 
not really sure why i ain’t drawing/writing it out now. little motivation, i guess & i know very little about story telling.