I am obsessed with slash and yaoi/shonen-ai/BL.
My the most favourite pairing is Kaoru/Omi from BL anime Gakuen Heaven. I adore Kaoru Saionji as Queen of Bell Liberty and his Knight Omi Shichijou!
Then I love very much fox demon Yoko Kurama from anime Yu Yu Hakusho (he resemble a lot Kaoru Saionji, I mean) and novels Nightrunners (4) by Lynn Flewelling. I like anime Kyou Kara Maou and manga/anime Tactics, too.