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Step Brother Bear: A Bear-Shifter Love Story

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Her step-brother is an animal, and she is his prey.

Isabella has always hated her unruly step-brother, Derek. Luckily for her, he spent most of their lonely upbringings at a boarding school for troubled kids. Now that she’s an adult and back in her childhood home, she hates the tattooed, moody man even more. Mostly because he’s right next door, set on making her life miserable and behaving like a literal animal. Things get even worse when her mom and step-dad leave town and task her to care for the beast and his newly acquired gunshot wounds. Their close quarters reveal heated secrets with monstrous consequences. There’s more to Derek than meets the eye, leaving Isabella to excavate terrifying and confusing feelings.

Can she see past the claws, or will she decide the two are just entirely different species?

217 pages, Paperback

Published June 18, 2026

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About the author

G.M. Fairy

17 books694 followers
G.M. FAIRY is a #1 best-selling, romance author who dabbles in Fantasy, Sci-Fi, and all things whimsical. She's best known for Get In My Swamp and Pounded by Produce. Her specialty is taking the stories we all know and love and ruining them in the best way possible.

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5 stars
131 (26%)
4 stars
197 (40%)
3 stars
117 (23%)
2 stars
34 (6%)
1 star
9 (1%)
Displaying 1 - 30 of 223 reviews
Profile Image for cat (slow).
330 reviews131 followers
Review of advance copy
June 5, 2026
well… this was certainly different

if you’re into paranormal romance and don’t mind a little (okay a lot of) taboo, this is a super quick and easy read. the whole dynamic basically boils down to “he’s mean to you because he likes you.”

Derek and Isabella had a surprising amount of chemistry, and even though the stepbrother aspect definitely pushes the taboo factor, their banter and tension kept things entertaining.

And yes… there is a washing machine scene. ironic really for the stepbro theme. I actually had to put my face in my hands for a second. But considering the title, cover, and general vibe of the book, i probably shouldn’t have been surprised.

Overall, i had fun with this one. it’s not a book i took very seriously, but it was easy to fly through, gave me a few laughs, and kept me entertained from start to finish. if you’re looking for something short, weird, steamy, and unapologetically over-the-top, this might be worth checking out.

things to know about the book ↓

🐻 bear shifter
🐻 paranormal
🐻 stepbrother
🐻 taboo
🐻 forced proximity
🐻 mates
🐻 single POV (hers)

spice rating: 🌶️🌶️🌶️🌶️
→ chapters: 7, 9, 10, 11, 12, 13, 16, 20
swearing: yes

Thank you Luna Literary, publisher & author for this arc in exchange for an honest review. All thoughts and opinions are my own.

─────────
・❥・⁀➷ 🐻💋𝕡𝕣𝕖-𝕣𝕖𝕒𝕕

what was i thinking when i requested this...
giving you full permission to judge me rn
Profile Image for kat.
64 reviews16 followers
July 13, 2026
This was kind of a fun read? Idk it was terrible but it wasn’t great.
Profile Image for EmJustReading.
48 reviews5 followers
June 22, 2026
Obviously this is a taboo relationship, so it’s important to accept that going into this!

There was a TV show about step siblings that had chemistry (which the dedication seems to nod at) and funny enough that show is why I liked the name Derek, and ALSO why I wanted to read this book.

This was a very quick read, and I was so captivated I read it in one day. The desire between the two was clear, but honestly I wish the “fun” scenes would’ve been more dragged out. It seemed like a lot of work to be done within a page or two.

The ending really made me smile. I liked the teasing about how the relationship’s title changed, and it was very ironic how things worked out for the ex-boyfriend, as well as the best friend (I did predict that outcome lol)

I received this as an ARC

Profile Image for Britt.
658 reviews73 followers
June 20, 2026
G.M. Fairy brought together monster romance and the step sibling trope and I could not have been more excited to read this one!!

Let’s start with that cover. Ummmm, can I be held lovingly yet manhandled by a bear shifter?!? Where would I meet said bear shifter as a daughter of a couple still married (thanks a lot guys…)? Gorgeous and deserving of all your attention without a word even noted yet, that’s what the cover is.

I appreciated watching Isabella come around to her stepbrother, in both forms. As someone who had also dealt with less than stellar treatment from her blood parent, I loved watching her fight to keep him safe from his father when stuff started taking a dark path.

I felt so bad for Derek. He was basically not allowed his mate for so many years, he was abused by his father, and he was obviously highly distressed worrying about Isabella, especially around his shifted form. I loved how he finally got his HEA 😊

I love how these two fought their sexual tension, often stopping mid hookup when they came to their “right minds”. But when they finally gave in and just let everything happen? AMAZING!! I love the step sibling trope and the fuck it moment so much!!

Thank you to G.M. Fairy and Luna Literary for the eARC! The thoughts and opinions expressed above are honest and my own.
Profile Image for thebookish.dragon.
331 reviews36 followers
June 23, 2026
Format: 📱
Spice: 🥵🌶️


This was my first G.M. Fairy book, and I was so nervous to start. Step Brother Bear was everything I was hoping for in a spicy taboo novella - fast pacing, the spice was spicing, and just a dash of monster romance (my current obsession thanks to CM Nascosta)!

We have enemies (step-enemies?) to lovers, forbidden attraction (what are you doing, step bro?? 😅), bear shifter, alpha aggression, fated mates, and a sort of second chance romance.

This may have been my first G.M. Fairy story, but it won’t be my last. I’m looking at Scream For Me as my next foray 😏



I received this eARC from Luna Literary Management and author G.M. Fairy as an opportunity to read and give my honest review.
Profile Image for kelsie.
539 reviews29 followers
June 25, 2026
i, too, do the darndest things if someone tells me i won’t

this was bad but i will say the storyline did kind of surprise me
Profile Image for Lynn_G.
1,216 reviews28 followers
June 7, 2026
Returning to a parent’s home at twenty-three after a breakup is never easy, but Isabella’s ordeal is made even more humiliating when she must share a wall with her brooding, hostile-to-her stepbrother, who also happens to be a tatted, hulking hunk of a man who tormented her all through middle and high school. He’s careless about the volume at which his preferred self-gratification videos are played, and he sends her mixed signals all. the. time. When her ex shows up charming the (almost literal) pants off her mother and stepfather, her stepbrother goes from contemptuous to unbearable, pun intended.

Recovering from a GSW, Derek’s already a growly ball of irritability, but when Isabella comes to stay, her presence is like gasoline on his barely contained pyre of desire and rage at the impossibility of their situation. A father who tried and failed to beat his ursine nature out of him, and a grasping stepmother who’s embarrassed by him at best have made for a rocky convalescence, and they continue to try to pit him and Isabella against each other even as his inner voice screams at him that she’s his mate.

I am a big fan of GM Fairy’s writing, the humor and the drama alike. While this was a good read, there were a couple of things which if expounded upon would’ve made for a great read. As an example, the interactions between Isabella and Derek especially in the first third of the book were basically them telling each other “F@€k you”, not really in a sexy way, just a juvenile way for a couple of twenty-something’s. Additionally I would’ve liked to know more about Derek’s father’s relationship with his birth mother, why he hated his son so much, especially.

Fans of shifter and bully romances will enjoy this one. Be sure to read the TWs if you are a sensitive reader; not all the characters survive this one, btw. (The MCs do!)

I was graciously furnished an advance reader copy from the author, and I’m sharing my honest review.
Profile Image for Emma Bookish 📚.
173 reviews6 followers
June 7, 2026
This book follows Isabella and her Life With Derek, her stepbrother who’s also a bear shifter. The entire book can basically be summed up as Derek being a jerk and jerking off or talking about jerking off. And I enjoyed every moment!!

Derek put into words a character type I’ve always loved but never knew how to describe: “I was and am eager for any attention you’ll give me, even if it’s negative.” Give me every MMC who is so obsessed with his woman that he’ll gladly accept her irritation, annoyance, and outright hatred as long as she’s paying attention to him. The man is starving for crumbs and somehow it’s the hottest thing imaginable.

Isabella’s life is turned upside down. Losing her relationship and her job, forcing her to move back in with her mom and stepdad. Not realizing that Derek is also staying there in their childhood home. They spent years hating each other or apart, so sharing a house again should be a disaster. Instead, it becomes something neither of them saw coming. Aka them both cumming several times.

Thank Luna Literacy and G.M. Fairy for the opportunity to be an arc reader!
Profile Image for Paige Ottaway.
169 reviews3 followers
June 12, 2026
This is hilarious and brilliant, I can’t decide what parts funnier; the fact it’s her step brother or the fact he’s also a bear shifter. This is of course absolute fire as I would expect from a GM Fairy book and the plot is a damn good time. Our FMC Isabella is gorgeous, I think I actually fell for her rather than our moody, bear shifter MMC Derek. I actually found the use of a knot bloody hot 🥵 (which is not usually my thing) highly recommend this to anyone who wants a fun smutty time ❤️
Profile Image for Mandy Robitaille .
2,359 reviews26 followers
June 28, 2026
4.5 🌟 this was so good. Love when the line between love and hate is so thin, plus the step-siblings, plus he's a bear shifter! Ate this up!
Profile Image for Sarah-Louise.
223 reviews
June 20, 2026
I'd like to start by thanking the author and Luna Literary for providing me with an advanced copy of this book. All thoughts and opinions shared are my own.

This was fun, fast paced and everything I have come to know and love from G.M.Fairy's writing! Forced to return to her childhood home, Isabella is lost after losing her job and being dumped but she uses this as motivation to push herself to find something new and leave the home she doesn't feel right in. However, her stepbrother Derek is home and keeps making her existence feel even worse than it is. Throughout the story we explore the love/hate relationship between them and swoon at the tension that exists as they both figure out what exactly it is they feel for the other.

The spice in this book is insane, it feels primal and passionate, they really do just want to devour each other in those moments and feel everything good in the world from one another. I am actually obsessed because Derek was everything that Isabella needed and didn't know she wanted, and I was ready to hunt down my own bear shifter. Especially as bear related moments occur, that added to the experience... ALSO KNOTTING MY BEAUTIFUL PEOPLE!!! WE GOT KNOTTING AND I LOVED IT!

Overall this was a great read, and I highly recommend picking it up if you get the chance and want something fun and a little different!

What to expect:
🐻 Step Siblings
🐻 Enemies to Lovers
🐻 Knotting
🐻 Forced Proximity
🐻 Bear Shifter
🐻 Touch Her and Die
🐻 Plus Size FMC
🐻 Masked spicy scene

Quotes:
🐻 "I'm dangling by a fucking thread. I'm trying my best to drown you out, but goddamit, you make it near impossible."
🐻 "It doesn't matter if you're an animal. Even if you become more feral every day, I want to be with you."
🐻 "Eyes on me. I want to watch as you fall apart, remember it whenever I see that prick."
🐻 "We've both been dealt a shit hand when it comes to examples of love, but we have each other to rewire our brains and show what real love looks like."
🐻 "Be a good girl, shut up, and let me fuck and knot you until you forget I'm your stepbrother."
🐻 "Why do you hate me so much?" "Not because I hated you. I wanted to see if you'd get jealous." "Why?" "I was and am eager for any attention you'll give me, even if it's negative."
Profile Image for Meredith.
627 reviews5 followers
June 20, 2026
Love, love, love GM Fairy’s writing! So I knew going in and I would be happy. And I was right!

This was so much fun of a stepbrother romance, starring Isabella - a young adult FMC who returns home after losing her job and her boyfriend in NYC to live with her narcissistic mother and stepfather. And her stepbrother Derek is there, recovering from a gunshot wound. They’ve always hated each other… but maybe they didn’t? Maybe it was masking attraction all along?

Also, he’s a bear.

This isn’t a spoiler. It’s in the title. You should have known.

This is spicy, sometimes violent (because BEAR and things happen, ok), often absurd and always fun. Single POV, and Isabella’s voice is perfect. A bit of snark, a lot of righteous disgust with her “parenting influencer” mother and Lewis, her ex. And really so much fun! It’s fast paced and you’ll enjoy it. Trust me.

Perfect for both fans of taboo romance who haven’t yet ventured into the world of knots and for experienced shifter readers!

Thanks so much to Luna Literary and the author for the review copy.
Profile Image for Maddie.
160 reviews6 followers
June 22, 2026
4.5 ⭐️’s!!

GM Fairy delivers again!! I can confidently share that Derek & Isabella will be rent free in my mind for the foreseeable future. The plot is deliciously messy and the taboo nature made it all the more intense. And their connection? Hotter than a sizzling pan of Chili’s fajitas. HIGHLY recommend!!

SBB has definitely hit my top 3 GM Fairy stories!! And the extra .5⭐️ is for an incredibly satisfying ending!!

Check out Step Brother Bear if you like:

❤️‍🔥 forbidden love
🐻 shifter with knotting
❤️‍🔥 SPICY AFFFF
🐻 Phil Collin’s Brother Bear Soundtrack
❤️‍🔥 taboo romance
🐻 secret hookups
Profile Image for Katie Welder .
170 reviews6 followers
June 20, 2026
Her Step-brother is a beast...

Isabella is almost at her lowest. Having to move back home, jobless and single. And just when she thinks it can't get any worse...her pain in the butt stepbrother is also there. Little does she know where it leads....

This was such a quick, fun, and spicy read. Poor Derek really was pining forever. So much grump and you just wanna cuddle him. Don't worry Isabella takes care of that for us.

Things got INTENSE! I'm just gonna let you find that out on your own. Definitely a perfect little pallet cleanser that leaves you satisfied.
12 reviews
June 20, 2026
Thank you for the ARC.

Once again, G.M. Fairy has managed to positively delight me with her newest book, Step Brother Bear.

Isabella is having a terrible time; her boyfriend left her, she lost her job, and now she has to move back in with her mum and stepdad. Worst of all, her stepbrother Derek is there too, and he's a freaking bear...shifter.

G.M. Fairy has worked a fantastic plot into such a short book. The tension between the MCs is incredibly hot, and the steamy scenes are incredibly knotty ;) I adored the pair of them instantly, and we can all agree their parents are the worst.

The ending was adorable, as I have come to expect from G.M. Fairy after reading half of her available body of work. Highly recommend this to anyone who wants a smutty read with depth and relatable characters.

Also the Goldilocks reference made me cackle.
Profile Image for Chloe (BrunetteBibliophile).
398 reviews90 followers
June 21, 2026
*Thank you to the author for providing me with a digital ARC. All thoughts and opinions are my own.*

Overall, this is not my favorite book from G.M. Fairy, but I do want to continue to see what other crazy retellings we get in the future. She does remain an author I go to for so wacky books, like this one.

I was not a big fan of the characters. It was as if one moment they were enemies and the next they were having sex without ever talking over the conflicts. I also didn’t feel like we got enough explanation about the shifter plot.

It kept me entertained enough, therefore it is a 3 star read for me.
Profile Image for Tara Malta.
265 reviews15 followers
July 8, 2026
What a quick, taboo, stepsiblings shift romance. I loved both Isabella and Derek! I love the hate to love, but he always wanted her dynamic. My heart broke for how Derek had to grow up. I absolutely loved the ending and everything wrapped up so perfectly!

Thank you to G.M. Fairy & Luna Literary Management for the early e-copy to read and review!
242 reviews16 followers
June 29, 2026
“I’ve never experienced anything as glorious. If I survive this, I fear I’ll become addicted.”

Hehehe this was a really hot time. I loved how their tension absolutely exploded! Definitely a really fun and spicy read! I laughed out loud multiple times and then got to explain EVERYTHING to my innocent hubby.
Profile Image for alexis.
231 reviews5 followers
July 2, 2026
This was so much fun. I love a little taboo and then mix in some paranormal shifter fun in there and I am having a great time. Its a quick easy read with amazing spice, I wish there was more in the end about how the ended up etc but overall a fun, quick paranormal romance
Profile Image for The Book Ssirren.
5,765 reviews147 followers
July 6, 2026
This was fun in all the right ways. Step siblings. She can’t stand her brother. He’s an unruly beast. Literally a bear shifter. Isabella ends up coming home because she’s broke and jobless. Just her luck, her brother Derek is also there. Licking his newly acquired gunshot wounds. And guess who had to take care of him? Yep, Isabella. But the second these Terri start spending time together, oh my! Things heat up so fast. I loved this spicy and hot read of these two. It was exactly what I needed.
Profile Image for Sam.
360 reviews36 followers
June 21, 2026
Kinda mad at my parents for staying happily married. A stepbrother shifter sounds fun.
Profile Image for Amanda.
383 reviews7 followers
June 22, 2026
Shifters, fated mates, enemies to lovers, taboo, some gore, some spice... it had a little bit of everything all wrapped up in a quick and fun little read!
Profile Image for eli.
181 reviews15 followers
July 2, 2026
oh how i didn't want to give nor expect to give this book five stars but, I cannot remember the last time I had this much FUN with a book, absolutely adored it.
Profile Image for Kaylah.
217 reviews17 followers
July 3, 2026
My first ever book by G.M. Fairy and I ate this UP!! The Life With Derek inspo was 🤌🏽 this book was hottt.
Profile Image for Erin | the.gremlin.reader.
332 reviews36 followers
July 16, 2026
I feel very neutral about this one but I also feel like it was exactly what it said it was going to be?
Profile Image for Britney Jean | JeanInTheHeatOfBooks.
342 reviews9 followers
June 30, 2026
The tension between the two main characters is impossible to ignore in this one. Step siblings with true enemies to lovers vibes plus it’s short and sweet.

- Touch her & die
- Taboo
- Shifter romance
- Knotting
- Enemies to lovers
Profile Image for Zahra (Bookish_Platypus).
312 reviews19 followers
July 6, 2026
I love a trope where both adult step siblings have to return home!

I was definitely endeared to both of the main characters. I felt bad that Isabella's mom was so awful and inconsiderate to her but Derek's dad was somehow even worse.
There was definitely some shared trauma going on!

This was such a short, fun, and spicy taboo read with some monster/shifter mixed in. I had a blast with it!


Thank you to the author and Luna Literary for the ARC.
Profile Image for Ariday Books.
341 reviews99 followers
June 15, 2026
My God!! 🥵 We started strong. For a moment, when he challenged her, I thought she wasn’t actually going to do it… but this girl was definitely not shy 😂

Okay, okay, being serious for a second, this book was really entertaining and fast-paced (which is perfect for me). The author doesn’t over-explain things that are already perfectly clear through the narration 👌🏽. There was one chapter where I almost DNF’d because the author made me think he was with another woman in his room, but then in the very next paragraph, it turned out to be just an adult movie 😂 I laughed at myself and kept reading like nothing happened. I’m so glad I did because it only got better :)

———
Thank you so much, Luna Literary, for the ARC 💗

Tropes:
🐻 Shifter romance
🚫 Forbidden romance
🌾 Small town
🪢 Forced proximity (knotting)
💌 He falls first

Isabella 🍯:
After breaking up with her long-term boyfriend, Isa is forced to move back in with her parents, whom she absolutely can’t stand. She’s desperate to find a new job so she can leave her hometown as quickly as possible. Especially when she has to sleep in the room right next to her stepbrother’s 🙈

Derek 🐻:
Growing up as a bear shifter in a family that never really wanted him was incredibly lonely. He was constantly sent away, and whenever he was home, he could barely control himself around Isa 😳

Story 📝:
When Isa returns home after years away, she thinks her stepbrother has finally matured and will stop making her life miserable. She couldn’t have been more wrong because now that their bedrooms are right next to each other, he won’t stop blasting loud music and making way too much noise with his nighttime activities 🫣😳. She tries to stay away from him until their parents leave them alone for a few days… and things get way too hot 🔥

Safety Warnings ⚠️:

* Possessive MMC
* Knotting 🪢
* Celibacy? No, but after they reunite, neither of them is involved with anyone else.
* OW drama: Her ex comes back wanting to win her over, and she considers giving him another chance before realizing she’s being foolish. Also, a guy at a bar asks her to dance, and she accepts.
* OM drama: Not exactly, but one of her former friends reveals that she hooked up with the stepbrother years ago because he wanted to make Isa jealous.
* Separation? Only for a few hours.
* Happy ending? Yes.


Español💌;

My god!! 🥵 empezamos fuerte. Por un momento, cuando el la retó pensé que no lo iba hacer perooo esta chica no fue nada tímida xd
Bueno bueno, hablando enserio, el libro está bastante entretenido y va a paso rápido (perfecto para mi) la autora no sobre explica cosas que quedan perfectamente claras con su narración 👌🏽. Hubo un capítulo que casi lo abandono porque la autora de hizo creer que el estaba con una mujer en su habitación pero luego en el siguiente párrafo resultó que era solo una película para adultos 😂 hahaha me reí de mi misma y luego seguí como sin nada y que bueno que lo hice porque se puso mejor:)

———
Thank you so much Luna Literary for the ARC💗

Tropes:
🐻 shifter romance
🚫romance prohibido
🌾small town
🪢proximidad forzada (nudo)
💌he falls first

Isabella 🍯:
Después de terminar con su novio de años Isa se ve obligada a volver a vivir con sus padres a los cuales detesta. Está desesperada por conseguir un nuevo trabajo para salir de su pueblo de más rápido posible y más cuando tiene que dormir en el cuarto de a lado al de su hermanastro 🙈

Derek🐻:
Creciendo como un cambiaforma oso en una familia que no lo quería para nada fue bastante solitario para él. Lo enviaban todo el tiempo lejos y cada vez que estaba en casa apenas y se podía controlar cerca de Isa😳

Historia 📝:
Luego de que Isa volviera a casa después de años, pensó que su hermanastro ya había madurado y dejaría de hacerle la vida imposible. Pensó mal porque ahora que tienen la habitación una a lado de la otra , el no deja de poner música muy fuerte y hacer demasiado ruido con sus actividades nocturnas 🫪😳. Trata de mantenerse alejada de él hasta que sus padres los dejan solos unos días y todo se pone demasiado hot🔥

Safety warnings⚠️:
-mmc posesivo
-nudo 🪢
-célibes? no, pero después de que ambos se volven a ver ninguno está con nadie
-drama OH (otro hombre) el ex de ella vuelve para recuperarla y ella piensa en darle una oportunidad, al final se da cuenta que está siendo tonta, also un chico en un bar la invita a bailar y ella acepta

-drama OM (otra mujer) no como tal pero la ex amiga de ella comenta que se metió con el hermanastro hace años porque el quería darle celos a ella

-separación? unas horas
-final feliz ? Si
Displaying 1 - 30 of 223 reviews