It's the most heteronormative thing that exists on this planet outside of organized religions. Well, I mean, the author is Mormon, never mind. But yes, it's so straight that they set up one guy with a female baby rather than leave him dangling so that he might be tempted to ~steal Bella or accidentally find a nice man or something. A baby.
Yeah the fanfiction is pretty gay. And some of it is surprisingly good. You're better than that, Twilight fanfiction authors.