Therin of Andor wrote:
Fan fiction also has andorians requiring 4 genders to procreate
No, that's the pro fiction
from Pocket Books. The most famous fanfic about Andorians has three
Correction, I know that fan fiction has Andorians with four genders because I written some. Even worked out exactly who does what to whom, and in what order. I seek out Andorian fictions. When the gender is part of the story, which isn't always, the number is usually four. Although I have read sories with just two genders. Writers choice of course.