Once in a while, a creator of something may want to give their fans a bit of Fanservice. He or she does so, and waits to see their fans get turned on...
...oops. Turns out it did the opposite.
A case of Dude, Not Sexy!
can happen due to the art style
, a fetish used that the creator thought would turn their viewers on as well
, the character(s) used, or maybe the fans wouldn't think fanservice would be appropriate for the story.
This is NOT Fan Disservice
, where the creators purposefully
turn their viewers off.