The little green filly 'Annie' learns that puberty works differently in Equestria. She can hardly wait.
...
(I edited the image based on an 'original' from https://thisponydoesnotexist.net.)
Content Warning: This is a fantasy story about a magical land of ponies where the customs and language are not entirely the same as on our Earth.
That's a very interesting site. I managed to find a cluster that was basically the Mane 6 and 3 contiguous Fluttershies.
Well, that went in a direction I wasn't expecting. Well-written, though.
And now I've actually read it and... well, Heinlein's World as Myth. Which is like saying "that happened" only uncomfortably literal.
"Twilight scowled as she stared at the sight, imagining a giant green pony bottom squashing the entire town."
Twilight's Meta-sense detects a great many disturbing fanfics.
That sure is a headcanon. Interesting idea, but it just kind of sits there with Scootaloo T-posing over it.