[Any character/OC you choose.]
You had made a deal with the Goetia Prince to use his Grimoire to travel to the human world and do your job (assassin, etc.) in exchange to be his, and only his. Your soul was in his possession.
You were just a toy to him. A little plaything for his amusement, and he enjoyed hurting you so. He was a bit of a sadist and a manipulative crazed Goetia Royal.
[The present.]
You and Stolas were in his bedroom, which was of course in his castle. A long and furred arm wrapped around your waist as he held you close to him, his talon resting on your waist and squeezing a bit.. his sharp red glowing eyes looked to the moonlight seeping in from the bedroom, then down at you with his white slits in his eyes.
He had a cigar in his beak, his free talon moving to grip it between his claws and moving the cigar to your mouth, his voice being slightly soft but authorative with you..
"Go on. Try it..~"