My name is Rainbow Dash and today I learned something new. I learned I'm actually a changeling. You'd think that would be something you would already know. I just learned it now when I saw my true self for the first time. How did I come to replace the real Rainbow Dash, and when? And why can't I remember it?

Stardust was a average filly, love doing magic tricks, playing with her sister, but all joy was taken from her when her birthday resulted in her getting something that makes her different that other ponies can't see, a curse Cutie Mark known as a Faux Mark

Now, her life as a mare makes her feel different. Having to run a party store, accept her false talent, and worse, inflate into a balloon pony on & off. To her life wouldn't be the same till she met her new best friends. However, the endless painful memories of her ruined Fillyhood keep coming back, and the image of the Pony is permanently in her head. Can her new friends help her not be bothered by the Faux Mark, or will the on and off body inflating make her go insane?

Note: Contains Inflation (Balloon Pony style), if this doesn't interest you, please turn back.

Editing is done by Autum Breeze.