Possessed by my Demon: A Short and Spicy Demonic Romance

by X. Callisto

I thought I knew everything about exorcisms. Latin rites, holy water, confidence, I had it all for my first solo case.

I was so f*cking wrong.

Instead of casting the demon out, I pulled him INTO me. Now Maxphas, an ancient possession demon, is trapped in my body, experiencing every sensation through my flesh. Every touch, every taste, every ache of desire that builds between us until I'm going insane.

But when he manifests physically, dark and demanding and desperate, I realize the I didn't fail the exorcism. I completed it perfectly.

And now I belong to a demon who knows my every secret fantasy.

"You pulled me into you, little priestess. That makes you MINE."

I thought I was saving someone else's soul. Turns out I was damning my own. Best mistake I ever made.

Genres: Short Stories

33 pages, Kindle Edition

Published September 7, 2025

Reviews

[Kelly · Rating 5 out of 5]

This one was pretty darn fun. An exorcist taking care of a little demon possession problem *accidentally* pulls the demon into herself and bonds with him. While Sylvie tries to convince herself it was her inexperience that caused the issue, Maxphas (who can read all the thoughts and desires running through her mind) points out that the demon romance she read recently and her desire to be possessed (in a sexy way, I'm guessing?) miiiight have been the real reason.

As in, Sylvie wanted to experience some good demon lovin'.

Fortunately for her (and Maxphas), these two are pretty well suited. Sylvie is down to try all sorts of things and Maxphas gets to experience them in a very real sense.

Fast, fun, and sex-ay. Demon lovin', AMIRIGHT?!?!

-Kelly @ Reading the Paranormal

[Rachel · Rating 3 out of 5]

The start of spooky month can only mean one thing. Demon smut.
In this case, this was the perfect hour read with exactly that and nothing more. I thought the idea of the FMC being an exorcist apprentice really just added another layer to the taboo vibes and made it that much harder.

Another win for X Callisto being the perfect smutty read!

[Nina Diab · Rating 5 out of 5]

"Oh, this is precious." The voice coming from the sixteen-year-old's throat could have been centuries old. Male, definitely male, with an accent I couldn't place. "They send me a baby exorcist. Tell me, did you even bring the right kind of salt?"
He laughed. The sound was too big for Tommy's throat. "Your Latin is shit, by the way. I can hear you thinking the words and half of them are wrong... Were you sick the day they taught pronunciation?"

I loved this book. A fun and to-the-point quick read. I loved both Sylvie and Maxphas. She was not prepared for the exorcism she had to perform, and the demon prince was bored- gleefully criticizing her Latin and freaking her out- causing her to mess up her incantation, and trap the demon in her own mind instead. I laughed more than not reading this book. I loved Maxphas' personality from his first page and I love this dynamic between them. I wish this was a much longer book! 5 stars

P.S.- I LOVE this cover so much!!

[bunny · Rating 3 out of 5]

This was quick, a little dirty, and honestly fun. The whole setup of a rookie exorcist botching her first solo gig and ending up with a demon in her head cracked me up. Maxphas was cocky from the start, mocking her Latin like a smug tutor who also happens to be stuck in your body. Their banter made the short length fly by, but it also left me wishing there had been more room to let the tension simmer. The details felt rushed, which made some scenes blur together, but the humor and heat kept it entertaining. It’s basically an extended spicy moment with a plot excuse, but it worked for what it was.

[Renee · Rating 5 out of 5]

a little bit more story

Again don’t come for the story come for the heat.

C. Callisto is someone I didn’t expect to start reading so voraciously but here I am.

The story is short, but I kinda like the concept of a botched exorcism that ended up with a demon mate.

Let just say they don’t perform at the typical human level but alas is a demon can’t expect the same lol.

Story: ✨✨✨
Spicy: 🌶️🌶️🌶️🌶️🌶️🌶️🌶️🌶️🌶️

[Jamesa Brown · Rating 5 out of 5]

very satiating

This was about 75% spice and 25% romance, which has its own time and place as a fun story in my opinion. Thankfully, the demon that was written in this short was funny as well as endowed, so he was endearing. The FMC was curious and funny in her way too, so this was satiating.

[Debbie Benson · Rating 4 out of 5]

I received a free copy of this book via Booksprout and am voluntarily leaving a review. I liked this steamy short where an error leads Sylvie mating with Maxphas. I liked how they cooperate to make her very successful.

[Andi Downs · Rating 5 out of 5]

Just love these demon shorts by this author and this new collection is just as much fun and erotic. This is Sylvie and Maxphas's story in Possessed. :D I received a free copy of this book via Booksprout and am voluntarily leaving a review.

[Nicole Deanne Veracruz · Rating 3 out of 5]

Facebook is basically pierce my Rose story. I just finished another book by this author and absolutely loved it. But this one just didn't hit right for me.

I received a free copy of this book via Booksprout and am voluntarily leaving a review.

[Jessie B · Rating 3 out of 5]

Short, spicy and gripping

I didnt think I would enjoy this, but I did. 3.5⭐️

Only 36 pages (bonus) there was a lot of spice, and very very well written.

Will be reading more of these books

[Mindy · Rating 3 out of 5]

Very quick and dirty read. This is more of a prolonged sex scene, as opposed to an actual story. Entertaining, but that's about it.

[Sif · Rating 3 out of 5]

short, spicy, and sweet

this was a cute short, spicy, and sweet read

it felt cliched and typical of this genre but it kind of hit the spot

[Mindi · Rating 3 out of 5]

Different

Well this was different. Not bad, just different. Had a couple chuckle lines. Wouldn't say I'd recommend unless this is your wheelhouse. On to the next!

[Kels · Rating 5 out of 5]

So good for such a short story perfect quick read looking forward to doing the rest!!

[Tempest · Rating 5 out of 5]

I need a few hundred pages of this. Matter of fact a whole series. Premise is hilarious - a botched exorcism where the demon gets trapped inside a rookie priestess.

[Manda · Rating 3 out of 5]

Short, to the point, a love story, and amusing. Chili 🌶's were fairly decent though 😏

[Adéla Alonsová]

I love demon love stories. This was spicy as hell and quick read!

[Holly Homer · Rating 3 out of 5]

A short story that hit the spot. Fast paced and lots of fun! 😈