After losing her family in a fire, Sunset wanders the streets of Canterlot, doing what she has to do to survive. She finds a fellow filly on the street and the two work survive together.
After being defeated at the Fall Formal, Sunset is one hundred percent convinced she's going to be the most hated girl at school. If only she knew how wrong she was.
Lyra and her crew help Starlight and Trixie as the two other unicorns discover a plot to destroy Equestria. The humans turned ponies work to save one of their own.
After making a lewd remark, Trixie is blasted into the human world by Starlight Glimmer alongside Princess Luna. And now the two are fillies. It must be saturday.
Chrysalis’s second invasion was an incredible success—Equestria has fallen, and it seems like there isn’t anypony left to save it. But when Chrysalis stumbles across a mirror in Friendship Castle, it might not be ponies she has to worry about.
Twilight accidentally over-shot a spell, which went straight through the portal and by pure chance hit Sunset. Well, so much for band practice. Hooves aren't exactly made to play guitar.
Now that Sunset Shimmer is able to be a pony whenever she wants she is excited to start her new life with her friends by her side. Now though she has to deal with how others will react and learn just how poorly she has thought this life choice out
Sunset Shimmer goes to sleep one night just casually wishing that she wanted to be a pony again, but the next morning she finds that her casual wish has come true. Now she has to wonder if she can turn back and more importantly does she want too?
Sunset Shimmer has been distant lately, spending time with Starlight Glimmer. Twilight doesn't know how to feel, except jealous. When she gets a call from Sunset, asking her to come over, she doesn't know how to feel, except hopeful.
An accident with the Mirror Portal ends up with Twilight stuck as a small pony in the Equestra Girls' world. Her friends can't get over how cute she is.
The humane 6 have taken to using the term "pony up" when they transform to have their pony ears and manes (and wings). So what happens when it the transformation doesn't stop at ears and manes?