Recently rewritten. Contains occasional adult humor and violence.
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On a request from Princess Celestia, Twilight Sparkle and the rest of the mane six explore an abandoned mansion located deep in the woods. While doing so, they unwittingly stumble across an enchanted mirror that scrambles their DNA and pops out three brand new bouncing baby ponies. Hilarity and drama ensue as the mane six must cope with being suddenly thrust into motherhood, as well as protect their new foals from a dark god that wishes to use them for his own sinister gain.

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Fanart:
The three foals. by Freefraq on Deviantart.

What would you do, if you met a pony who was at once your brother, and yet not? Applebuck wishes to reunite with his 'Cousin JayJay', and braves the dimensional divide to reach his goal. But being a small foal, how will he deal with a world in which everything is flipped? His friends, his family, and even... himself?

Twilight and her five friends are transported during a botched spell, across dimensions to... Ponyville, Equestria? But not the same one that they knew. Sitting on a bench is Harpsy and Babar. The Doctoress avoids apples from an aspiring Applebuck. And in a library across town, six stallions join their forces as they try to decipher the appearance of filly look-alikes of themselves around Ponyville!