The pronoun debate is dumb because in Japan, first and third person pronouns don't strictly define one's gender in the first place. Some men use "watashi" and some women use "boku/ore" regardless of their biological sex or gender identity.
tl;dr Kris is a they/them, their gender is whogivesashit

>>531939081
He based them off of Spy vs Spy which has mostly subtextual homoeroticism. He wanted you to ship them that doesn't mean he's gonna make them smooch onscreen.