You don't think the "So You Want to Be A Wizard" books are YA? If so, they're mid-grade, not adult.

According to the folks on the YA panel I did at Armadillocon, the "fuck" taboo's been thoroughly broken in YA. (When Elsewhere was published, I had to take out a joke with "fuck" in it for the YA hardcover; it went back in for the Tor paperback.) And no one ever complained about the gay guys in Elsewhere having their own room. At least, not that I know.