Han and Sokka. There's some mild molestation and a touch of non con, nothing too graphic though. The mature is just to be safe.

Yeah, I have no idea why I'm so obsessed with this pairing, especially since I hate Han's chin (yes that of all things), but it won't leave me alone. ... That, and I love the idea of Sokka's necklace being a purity necklace a little TOO much.