Slave Boy by Snowtigra
m/m sex, slavery, voyeur, AU
Zabusa/Haku, Orochimaru/Haku, others?
Not as bad as the title makes it out to be. xD Zabusa is Orochimaru's bodyguard, and snakeman is given Haku as a payback gift. o_O Insert maaassive UST on Zabusa's part for a few chapters, before, yay, lemon.

Unnecessary Things
Contentedly Ever After
by Harukami
m/m sex, AU
Sweet, fix-it fic in which Zabusa and Haku don't die because Zabusa isn't out to take over the world. :D