Ever had one of those days where everything's just gone wrong, one problem after another?

Of course you have.

Ever had one of those days when you wake up to find you've accidentally switched places with your counterpart in a world where you and all your friends are stallions?

...No?

Maybe that's just Twilight, then.

But the Princess of Magic isn't going to let a little thing like being in the wrong universe ruin her day. She has a schedule - a checklist! - and it matches up with this Dusk Shine's perfectly. Apart from the names and the genders, everything seems to be a match, and Ponyville has seen much weirder things since she moved here.

Being stallions or mares shouldn't make her friends that different. What could possibly go wrong?

Last night, Dusk Shine-favorite student of Prince Helios and newly ascended alicorn-went to bed in a Ponyville where all of his friends were stallions and a major event was about to happen the next day. When he woke up, Dusk Shine had swapped placed with an alicorn mare named Twilight Sparkle. And, all of the friends and ponies that were male in his Ponyville were now female.

But, with the Princes (or is that Princesses?) coming tomorrow, Dusk Shine has no time to figure out what happened or what went wrong. Preparations need to be made and friends need to be consulted to get ready for the event. After all, everything else was just like his Ponyville. Surely it shouldn't be a problem, right?

Right?

A story that is inspired by and runs parallel with One Of Those Days by Taranth.

Proof reading and editing help provided by Door Matt.