Everypony has their reasons for doing what they do, for wanting what they want. For Fluttershy, her needs and desires are a little bit more complicated than that. She may wish that she could be just like everypony else, that she could feel good about herself by doing what everypony else does, but that's just not her. She's not like anypony else, so why should her dreams be the same as theirs?

In this story, Fluttershy sells herself into sex slavery so that she can do what she felt like she was made to do: to be a nopony. This is her reason.

Commission for Luna 117