I'm Mistake or Delusional Junkie! Sometimes I write, sometimes I prowl and leave (nice) comments on stories I like! [They/Them] (pfp credit is hioshiru-alter on DA)
Fluttershy wants to tell her friends some very personal things about herself. After several months of knowing them, she wants to try and explain her..."shyness"...a little bit better.
Everypony knows the story of Nightmare Moon and her period of confinement upon the object of her namesake. What about what actually happened to her during her imprisonment?