I think I might have bite and be bitten rules. It might be original like Dracula stuff. And in True Blood you have to be drained to death. Yeah because he sucks the vampire venom out of her doesn't he? So I don't think she even needs to drink his blood. When we read Carmilla a couple of years ago that was the, it was a similar thing where like a vampire could suck you dry and then you would die and then become like just like a vampire zombie later after you had died already.