Tied to the altar, I could barely see her as she walked into the room, but I could see enough to know that she was a priestess of this insane cult, her deep red robes made that clear.

I wasn’t sure what sort of sacrifice I had been prepared for, but they’d taken their time preparing me: stripping me of my clothes, washing me, then fitting me with a brief loin cloth.

She busied herself around the room, shifting a simple wood lectern near the altar, lighting a ring of candles, spreading careful lines of salt between and around them.

Finally she left the room, bringing back a heavy book and placing it on the lectern before returning to the doorway.

She looked at me, catching my eye before undoing her robe, slipping it off her shoulders and revealing that underneath the robe she was wearing a black lace negligee, almost completely transparent, with nothing underneath that.

She was a thin girl, fit, with freckles peeking out above the neckline of her negligee.

She caught me peeking and shot me a grin that was equal parts nervousness and excitement. It told me that whatever was going to happen next, she was as ready as she could be, which was nowhere near ready enough.

She carefully walked to the lectern, squatting for a moment to seal the salt lines behind her.

A tattered bookmark poked out of the book, she opened it at that page, carefully reading through it, looking around after each line as she checked her preparations.

She re-read it, then read it a third time, checking, double checking and triple checking her preparations in the room.

Finally she raised her arms, drew a deep breath and threw back her head:

“Omnium magnum percolis dei machina. Posside corpus diem gloriosum!”

Lightning cracked outside, the lights in the room dimmed, suddenly the air seemed chilly.

She continued:

“Posside corpus diem gloriousm!”

She repeated that, over and over, until finally she trailed off in the middle of the sentence, dropping her arms as her eyes closed and her head fell forwards.

She straightened, almost like she was putting on a coat, before opening her eyes.

Something had changed: her gaze had a fire and presence that the thin young woman hadn’t possessed a moment ago.

She growled, looking around the room, before walking to the salt rings, reaching over them before drawing her hand back as if it had been burnt.

“FOOLISH MORTALS, DO YOU THINK THIS IS ENOUGH TO HOLD ME?”

Her voice had a deep guttural note and practically shook the room, even though she had barely raised her voice.

She paced around the circle, testing it at various points before finally turning to look at me.

“AH, AN OFFERING. YOUR LIFE FORCE WILL SUSTAIN ME UNTIL I CAN LEAVE THIS CIRCLE.”

She gracefully walked over to me, with a predatory look in her eye, almost like a cat stalking it’s prey.

“YOU WILL DO NICELY MORTAL. THIS FORM IS WEAK, BUT YOU HAVE STRENGTH, STRENGTH I’LL USE TO BIND THIS FORM TO ME AND POSSESS IT ETERNALLY.”

She ran her fingers down my chest before grabbing my loin cloth and ripping it away, tossing it across the room.

In a single fluid motion, she climbed the altar, straddling me.

She bent down to listen to my chest for a moment, then sat back up with a smile.

“THESE FOOLISH MORTALS THINK THEY CAN CONTROL ME. I WILL SHOW THEM HOW WRONG THEY ARE.”

She rocked her hips back and forth, lubricating my shaft, making me hard.

With an evil smile, she reached down and slid me inside her.

I gasped and her smile turned to a grin of victory.

“YOU ARE MINE NOW MORTAL. I WILL HAVE YOUR ESSENCE.”

She slowly, deliberately, slid her hips backwards and forwards, riding my cock, she closed her eyes in concentration as her movements got faster, more frantic, squeezing me, milking me.

The corner of her mouth curled upwards as I groaned, then opened into a dark cackle as I came. She wiggled her hips, keeping me going as she screamed:

“YES! YES! YES ….”

Worry flashed across her face.

“WHAT … IS … HAPPENING? THIS FORM IS FIGHTING ME … HOW?”

The expression on her face changed: the fire in her eyes softening as her grin turned from victory to triumph.

“Yes! Yes! It worked!”

She sat upright, sliding off my cock before climbing off the alter.

“I feel The Power flowing through me!”

She turned to me.

“I’m sorry, you should be fine. We needed the Succubus to extract your energy for the next part of … The Ritual!”

She walked back to the podium, snapping the book shut.

“So Much Power! Oh, I will bind this world to our will, smite the disbelievers, erect monuments to our power. We’ll be UNSTOPPABLE!!!”

I freed myself from the ropes holding me down, sliding to the edge of the bed before standing behind her.

“No you won’t. Remember?”

“Wait, no, how?”

I tapped her forehead and she melted into my arms, dropping the book as she fell back into trance. I laid her down on the bed, sweeping the ropes out of the way.

I grabbed the book she’d dropped, a thick dictionary, putting it back on the podium.

I sat on the bed next to her.

“The fantasy is over. You’re no-longer a priestess, and are back to normal power. Do you understand?”

She mumbled a “yes”

“Waking up, back to your normal self, feeling refreshed and remembering everything you did and everything that happened to you in Three, Two, One, Eyes open, wide awake.”

She opened her eyes, stretching then rubbing her eyes.

“Why can’t I keep the power?”

“Because you’d try to take over the world and it wouldn’t work, because it’s not real.”

“I know, but it feels real and that feels exciting!”

She slipped a hand between her legs for a moment.

“And it always makes me .. mmm .. sooo wet.”

“You’re an absolute demon.”

“Because I am one … well I’m possessed by one … believe I’m possessed by one.”

We laugh.

“Wow. I need a shower, demonic possession really works up a sweat.”

I help her to her feet and she flows into my arms for a hug.

“Thanks, I think that’s one of my favourite fantasies. Mmmm, it never gets old.”

She grabbed my cock, leading me towards the shower.

“Clean up later, I still need you.”