When John Radderson ended up as an anthropomorphic alicorn Princess Twilight Sparkle, she set off a chain reaction that transformed her classmates into her pony friends.
Did I have a massage the other day? I did wake up early in the dark. In a Chrysalis, that is. There is no recollection of who or what I had been before I went to bed, though. Now I am an Anthro Pony
That's what happen, when you go out on a limb, slipping out into the ever so dark forest, never to think ahead. Now I had slipped out of Equestria, to not even Discord knows where. It's on the other side of the gate?