Sanguines: The frothy mix of blood and spit, that is sometimes the byproduct of neck penetration.

The only other thing I wish I could do as a vampire, is spread the disease, make my companion a vampire, townsfolk vampires, even Jarls as vampires. Then mayhem would spread everywhere as vampires take over the land of Skyrim.

Vampire transformation as well, would be pretty sweet. If infected with the vampire disease, the player should be able to initiate a limited amount of time to sprout wings and fly to higher heights, to cast spells or shoot arrows, as well as undergo a temporary physical transformation

I also don't understand why Vampires attack the main character, even if the player is infected with Vampirus Sanguines, shoudn't the fellow vampire recognize the new gentical identity?