A cloaked figure

You are frozen on the floor as a mysterious person covered in a drab cloak steps up to you. Their entire form is hidden by their simple dress, except for their eyes which glow a full purple from under their hood. You can also see the shadow of the figure's bare feet from the bottom of the cloak.

"Oh my, my trap caught quite a surprise!" The voice coming from under the dark hood is surprisingly sultry and feminine. "Who'd have thought I'd snag such a slut!"

"I'm not a slut..." you moan. The fact that you still have a hand rubbing at your folds, though, betrays the lie you tell yourself.

"Oh, honey, it's fine to accept your nature. I can help you, and give you infinite pleasure," the mystery woman replies. She steps into the glowing circle and drops her cloak, revealing her curvy figure, magically perky breasts that are somehow larger than yours, pale purple skin, and small, curved, demonic horns poking out from above both temples. What stands out the most, however, is between her legs. A massive, erect cock swings back and forth with each step, hovering over a massive sack which seems to writhe with desire with every movement.

"No... AAHHH, NO!" you moan out, your brain's last, **** resistance undercut by having worked yourself to another orgasm.

The demoness is standing over you now, stroking her cock with both hands and staring at you with a sadistic look on her face. "Oh how I would like to ruin you myself," she muses, "but I have a much more fitting fate in mind for you. If you want cock so bad, I'll make sure your entire existence depends on taking cock in your slutty virgin pussy!" With that exclamation, she stoops down, removing one hand from her cock and placing it over your forehead. She murmurs something in a demonic language, sealing your fate to be bound to this dungeon. As the spell completes your already heightened lust has exploded, making your entire body tingle and filling your mind with a desire for sex.

Once the spell is finished, she kisses you on the forehead before getting back up, putting her cloak back on, and walking away. As she does so, you feel a strange connection, a longing, towards the hallowed ground upon which you lay. As the sound of her footsteps fades, your entire consciousness goes black. As your senses fade, however, somehow you know that the next time someone activates this magic circle you will be granted your one remaining desire.