Brave Merida genderbend by Maby-Chan. I usually don't like gender bending. Actually I don't. But this is very well done, not how I'd see Merida, but a beautiful piece of art nonetheless. Thats all I see the gender bent princes and princesses as. Interesting and a different take on a character that leads to good art.
To an extent this kind of sounds more sex-repulsed ace than simply ace. Asexuals *can* get aroused/enjoy the touching of fiddly bits, and don't have to be scared of it, but they don't seek it and certainly don't experience arousal at the sight of an individual. See: donut analogy.