Korra and Asami from "The Legend of Korra" is one of my favorite couples. I totally thought there was something between them while watching the show (started off as a joke in season 2, but got serious about it in season 3), and was genuinely excited when it was confirmed in the series finale. And even though the comics imply that they only kissed during their Spirit World vacation, there's no way to be sure this didn't happen in between panels! (And, hey, the previews from the upcoming comic really do seem to imply that, well.... oh, they fuckin'.)