Normally when Fluttershy has a dick, it is tagged Futashy.
If you search Futashy or Futashy_(mlp), you get images of regular Fluttershy; I know 96% of e621 doesnt know the FUTAshy tag.
Tag what you see not what you know.
I relize that if the character is female, (HINT: the entire main cast is female), and if there is a dick....it's probably a Dickgirl/Herm.
just my 5 cents
Updated by Halite