Lesbiangamers.com has been lucky enough to get an exclusive interview with 'Chief Development Ninja' Nina Kristensen of Ninja Theory. The interview is Heavenly Sword heavy, due to this being a game with two female characters, both of which are awesome:
"There's also a strange thing about Heavenly Sword in that some gamers questioned whether Nariko (the lead protagonist) and her able sidekick Gabrielle.. err.. we mean Kai are lesbians. They're not of course, more adopted sisters, but it interested us that some forums actually brought this into question, given there is nothing in the story other than their deep love for one another that suggests such a thing, certainly nothing sexual is alluded to. Perhaps it was just boys and wishful thinking. Whatever the case there is some sort of Xena / Gabrielle feeling in the subtext, perhaps it's straight female love subtext of a lesbian subtext."