Eternally Theirs: An MFM Romantasy Novella

by Jack Whitney

Drifter’s Island has always been a place where folklore and magic seem to collide with reality. At least, that’s what the stories say. The most popular one weaves a tale about the Rumpus Brothers—demon twins who come to the island every winter to cause mischief.It’s just a legend. Right?

Wrong.

Three days ago, I didn’t believe in fairy tales.

And now, they’re standing in front of me. Brothers with magic beyond anything I ever thought possible, even demon forms that I’ve only ever seen drawings of.

But that’s not even the craziest part.

Since they came into my life, weird things have started happening around me—stalking shadows, birds dropping, even strange guests at my bar. The twins have a past to confess, and I learn that if I want to be with them, I’ll have to make the ultimate decision before time runs become theirs or risk dooming the entire island.

267 pages, Kindle Edition

Published December 21, 2025

About the author

Librarian Note: There is more than one author with this name on GR

Reviews

[Bethany Cooper · Rating 5 out of 5]

I AM SO MAD that I devoured this book as fast as I did. Two hot demon brothers and a curvy green haired FMC are the perfect ingredients to make something chilly and delicious.

The only downside of this book is that I need more of it.

[Diana Rose · Rating 4 out of 5]

Blaze and North Are Utter Perfection

I NEED more of this story, I really hope Jack Whitney isn't finished with them.
Blaze and North are the grown up sexy versions of Heat Miser and Snow Miser ; demons who bring the Christmas snow and Icycles , the brothers whose controled chaos make wintertime magic on Earth. Their lore is oral tradition in the small NC island in the Outer Banks , and our FMC Juniper Holly doesnt believe in Magic until them.
What you get with this 🌶🌶🌶 novella:
Twin sexy demons Blaze has a forked tongue.
They both have horns.
Blaze has a sad past : his mother the Wicked Queen of the Nether realm killed the last and only mortal he fell in love with..and he lost his magic strength.
I just kept hearing Snow on the Beach playing in my head..
Our FMC is a curvy girl a little bit of a black cat who has sadness and grief she is overcoming.
The yearning is palpable from these men.

It ends with the trio running from their mother, but I would love a trip to the Nether Realm, with Juni standing up to their mother maybe with powers of her own.

This novella was pure magic to the very last page. 4.5 ⭐️ I needed a full length novel with these characters!

[Kat · Rating 3 out of 5]

My Spicy Rating: 3.5🌶

❄️ARC REVIEW❄️

Eternally Theirs by Jack Whitney
Blaze, North & Juniper

AVAILABLE NOW

Paranormal Romantasy
Erotic Novella - 272 Pages
MFM - Twin Demons
Plus Size FMC
Fast Paced

I've read 6 other books by this same author and unfortunately this one didn't do it for me. I don't ever read fantasy and I really wanted to give it a chance but unfortunately I wasn't a big fan of this book. I didn't vibe or feel any connection with the characters or the story. I enjoy paranormal romance but this book is more fantasy and it just didn't catch my attention. I struggled to finish it. It took me too many days to get through it. Still a good read for those that like twin demons with horns and forked tongues. It is very spicy (involving said forked tongue) and there is a protector dog enjoying her life.

Either way, I appreciate the chance to ARC read this book and I will continue to support and read this author's work.

[Lemonnyyy · Rating 4 out of 5]

❄️🖤Eternally Theirs by Jack Whitney🖤❄️

272 Pages

A Nether Realm Erotic Romantasy Novella

Well this was a perfect little holiday read to get to in the mood... for 2 demons to uplift your life, in the best way.

I would honestly read anything by Jack and this was the perfect way to really get into the christmas spirit, and im pretty sure Juniper would agree.

I would love to see more from this universe in the future,
I would highly recommend this little novella to anyone after something short, sweet and festive! For fans of MFM, Festive Reads, Small Town Folk Lore, Plus Sized Baddie FMC, and some delicious Spicy goodness.

[Bookishkfae Fae · Rating 5 out of 5]

This is so much more than “just” an MFM holiday novella! This novella has magic wielding outcast demon brothers who fall in love with the same human woman and need to protect her from their evil mother. It also has trolls, sprites, fae, and a bad ass side kick dog, and cat. I am the biggest fan of Jack Whitney’s writing. And even. So o was still blown away by how she created a folklore story turned romantasy that captured my imagination so thoroughly in so few pages.

[balayageandbooks · Rating 5 out of 5]

There are always three things for certain whenever I read a book by Author Jack Whitney.
* One, this book is going to have a plot unlike anything l've ever read before, the stories are always so unique and a breath of fresh air.
# Two, I know that it's going to have this incredible
spice, to go with the equally incredible plot... she's the queen of spicy suspense!
And finally third, I know that it is going to rewire my brain and permanently life rent free in my head.
* This little beach town, that has this quirky little folklore.
And then add these two deliciously dark and dangerous demon brothers and ..... sold! When can I move there ?!
* Then add in this FMC, who is a total bombshell but is slowly rebuilding her life after tragedy.
** These three have this connection that is raw and so intense it's almost catastrophic...but in all the best ways.
#*-And of course all of the suspense...to go with the spice.
** And lawd have mercy the spice...because let me tell you what the heat these three create could melt the North Pole!
*I loved the HEA for now, and I hope that we get more of these characters, but even of we don't I loved how it ended.

[Brin Leah · Rating 4 out of 5]

I hope to see more of these characters!

I loved these characters and I truly hope there are more installments coming! Normally I would care that there are some typos and a few editing issues but I just treated them like my ex's red flags and fell in love anyway.

I wish this was full length and more fleshed out but the fact that I loved such a short book is a testament in and of itself. And the spice 🤌🏻🫦

[Brittny · Rating 5 out of 5]

Spectacular, give me 14 of em!

I loved this so much! The overly romantic / never been in love twin combo was 🤌🏼💋 I was SO happy with Juni, for being bold and sarcastic, teasing & funny. Although she never made them wait for long, there were boundaries set and she stuck to them. I would love to see more from these three in the future!!

[Jessica · Rating 5 out of 5]

Two demons with the Salvatore brother vibes (but also Jack Frost/Heat Miser) and a lovely, badass plus sized FMC who wins their hearts. Even though this one was shorter, there was so much depth of feeling and background stories included that I felt so deeply involved in their happiness. Plus, the spice was spicing!

I received an advanced reader copy for free and am leaving a review voluntarily.

[Amber Simon · Rating 5 out of 5]

This was a great winter novella! Blaze and North are spicy demon brothers who have met their match in Juni. This read was short and spicy and had a great amount of lore to create some really interesting world building that I'd like to see more of. I just love Whitney's writing! Overall, great festive read.

[Dani · Rating 5 out of 5]

⭐️⭐️⭐️⭐️💫

I ate this up! It was wicked and fun. Truthfully very low stakes, even if it did touch on some sensitive topics. Who doesn’t want twin holiday demons for solstice? I sure do.

[Anna Hoke · Rating 5 out of 5]

I need moreeeeee! What is going to happen next!??? I literally LOVED this storyline so much.