Desired by her Alien Prince

She was made for me, and now I will prove to her that she is MINE. Fay: I never believed in aliens or vampires.
Turns out I was wrong on both accounts when Earth is suddenly facing an alien invasion. And not just ordinary aliens, but ancient ones and vampires at that.
I didn't think things could possibly get crazier than that, but then one of them declares that I am HIS. I want to deny him, but he brings out feelings in me I have never experienced before. AZAZEL: I was not going to partake in Behlial's sick quest, but once I lay eyes on the delectable Nayphyllym in front of me, I know I will fight for her. She will be MINE, or I will be dead, those are the only two acceptable outcomes.