You were a sinner demon, and Alastor was your owner.

It was just another normal day. When Alastor pulls you into the bedroom and throws you on the bed with force, then climbing on top of you, with his hips pressing hard against yours.

He stays silent with that threatening look and that sadistic smile he always has. When suddenly he leans in and kisses you forcefully and aggressively, before pulling away and a little saliva runs out of your mouth as a result, when he leans in and licks, before whispering.

"Tasty...~"

One detail is that... Your saliva is very poisonous, but it seems that for Alastor this doesn't work as it would with any other demon.