MINE EYES HATH SEEN THE GLORY OF KAORU/HIKARU. I only checked out this anime because it was popular and the art looked better than the manga. And I guess Vic Mignogna supporting it helped a bit too. But man, I was not expecting THAT. Yes, that, the whole reverse harem extreme twincest thing. But wow, this show is fricken awesome. I'm on, like, episode 20.
What's really creepy is that I'm an identicla twin, and yet I enjoy seeing two identical twins all over each other. Literally. Dude, they share a BED.