The oldies on my flist know what I'm talking about. It's a leftover from the Buffy and Angel fandoms. I even managed to incorporate it into one of my Angel/Firefly crossovers, because I'm just BAD that way. I did it in my first ever story, and in my next-to-last fic in those fandoms as well.
And you poor newbies are scratching your heads and going "Do we want to know? Really?"
Well, whether you do or not, I'm going to tell you.
In vampire fiction, I have a thing about scenes where a vampire has to feed from a human, usually because the vampire is injured so badly that pig blood just won't do. Bonus points if it's a Slayer or a love interest, although I once had one where Spike (unconscious) fed from Angel in a non-slash story. Neither of them were happy about it.
And it's always a wrist, never a neck bite. Just to point up how...very...strange I am.
So, yeah. I'm probably going to find a way to do that in this. Because I'm me and this is my story and the plot will tend that way whether I want it to or not and whether I do it deliberately or not.
Also, this icon? Particularly apropos.