Stroke his cock

"I'd like to stroke it for you." You tell the demon, and a pleased little grin slides across his face.

"As you wish, girl." The incubus replies, pushing out his hips and gently thrusting his cock towards you. He holds it out for you by the base, and as you shift in bed to grab it from him, his hands fall behind his back, letting you take sole hold of his shaft.

It's warm and rigid to your touch, his skin soft and supple, gliding gently back and forth as you toy with it in your hands. Wrapping your fist around his cock, you stroke firmly up and down, rubbing your thumb and forefinger over his tip at the peak of your movement.

The incubus seems to be enjoying your efforts, his green eyes are half closed and every so often you squeeze a moan and a droplet of precum out of him.

After a few more strokes, he begins to thrust gently into your hand, his chest heaving slightly as he pants in pleasure.

"Ah, girl, you know how to work a cock... Mmmf... You're going to make me cum" The demon moans, his sentence paused each time your hand slides down his shaft.

Enthused by the knowledge you've got him close already, you grasp his cock with you other hand as well, stroking his large cock up and down with both hands, squeezing it firmly and twisting it gently. Precum wells at his tip, and he groans loudly before his orgasm causes him to sharply go quiet. Your two handed motion practically milks his cum out of his balls, thick ropes of his hot demonic seed splattering you across the face, neck, and chest.

Once his cock stops shaking and you let go of him, he relaxes, sitting down on your bed as if you've sucked out his ability to stand as well. He seems to be lighter than he appears, as he barely makes a depression the bed.

"Ah, you're very good at that, mortal." The demon tells you. He pauses for a moment, regaining his composure, and a fang-filled grin reappears on his lips. "You've passed the first trial."

"The first trial?" You ask him.

"Yes, the first proof of your commitment to sin."