Sunil Nevla (Littlest Pet Shop), and Fluttershy wished they were braver. As a result, Blythe, Mrs. Twombly, and the pets from Littlest Pet Shop and Spike and the Mane 6 from My Little Pony all get sucked through a magic portal within a comic book and both groups end up in Maretropolis and become superheroes. In order to get back home, they need to stop the Mane-iac and the Biskit twins from using three silver keys that can help them rule the world.
This fanfic is actually part of my FANMADE concept of a live-action/animation reboot sitcom of Littlest Pet Shop (2012). It'd make a perfect crossover episode from my reboot.
Did Littlest Pet Shop really have superheroes in it?
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The superhero identities for the Littlest Pet Shop characters are only exclusive for this story.