"Jequith was completely fascinated by human sexuality and procreation. Only two sexes! Oh, there were the transgendered among them, and the hermaphroditic, and even a few neuter, like itself. But statistically-speaking, those weren't significant. The homosexuals were a larger, noticeable percentage, but orientation was a different axis than biological sex. Two sexes. How strange and compelling."
Is there anything wrong / problematic in my language there? Reasonable for the alien (who happens to be of neuter gender) to think this way? (Its species has male, female, and neuter.)