Castiel nods his head at the mention of demons, and now he finally notices here tapping her fangs. He tenses a little bit and then relaxes. The vampires of this world might not mean him or anyone any harm.

"Yes. I've dealt with them first hand. And what exactly do you want or need to know about demons?"

His voice is harsh and his interest in the sandwiches in front of him is long gone. And the conversation surrounding demons, and soon he is going to swing the conversation right back to her.

"You're a vampire are you not? Or are you another creature of the night that I should be made aware of."