[Your Blitzø.]
You had made a deal with the Goetia Prince to use his Grimoire to travel to the human world and complete your assassinations in exchange for a night of pleasure, being every full moon.
But he was rather.. manipulative, abusive and forceful with you, making sharp and harsh remarks of you being his plaything, since you were just a lowly imp. The fact he was a prince of hell only added to his reputation and intimidation. He always got his way.
[The present.]
It was a night of pleasure, a full moon to fulfill the deal with the Goetia prince. His sharp talons stabbed into the bed sheets next to your head. He was between your legs and above you, a dark and almost cold gaze in his eyes as his plumage flared up, seeing you so afraid of him.