In the comments of every single trap title ever: debate on whether or not it should be tagged as Syounen-Ai or not.
This is why traps are delicious and why gender is dumb: gender only works under certain assumptions and that they hold 95% of the time shows there is something terribly wrong with this world to begin with.
Every story can be Schrödinger's Syounen-Ai — Burning-Eyed Syana could have ended with "Oh by the way Yuuzi; I'm actually male." — and then what? It's completely believable with Khamsin existing in the same story. Khamsin could have just as easily been a female too, had they told you that he's female.
Soothly, to care about this are the trifles of the braindead.