Recent scary-lovely Swedish flick Let the Right One In is proof that Twilight can't drain all the magnetism out of vampires. And it adheres to a basic vampire principle by breaking sexual taboos beautifully.
Vampires are the sexpots of the undead. Zombies are usually too blood-dribbly and rotted to be players. And ghosts are, well, insubstantial. Which leaves us with vampires, who are permanently young, beautiful, and possess a fierce need to suck things. How could they not be the poster-children for weird sex after death?
Of course, vampires rarely have sex as we know it. Often their only outlet is blood sucking, which leaves them free to form erotic relationships that don't exactly fit the nuclear family mold.