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Disaster Bi Design #1
Harmonious Hearts
Sometimes, opposites don't attract — they collide.
Mitchell Sullivan was supposed to be the ultimate uncomplicated distraction…until Roxy finds out the friends-with-benefits she didn't realize she was falling for is also benefiting from his best friend, Ian Summers.
Ian, who barely tolerates her.
Ian, who watches her like he’s just waiting for her to trip.
Ian, who steps in to protect her when she least expects it—and never quite steps back.
Suddenly, Roxy is entangled in a connection she never sought between two men with a history of their own and a growing interest in her.
Mitch wants more, and Ian wants in, but Roxy doesn’t know who she is when she’s not guarding her heart
Caught between past wounds and a future none of them planned for, Roxy has to decide if she’s brave enough to stop running and strong enough to hold onto something real.
Book One in the Disaster Bi Design series, Harmonious Hearts, is an erotic why choose (MMF) novella with a pretty cover and filthy guts.
Mitchell Sullivan was supposed to be the ultimate uncomplicated distraction…until Roxy finds out the friends-with-benefits she didn't realize she was falling for is also benefiting from his best friend, Ian Summers.
Ian, who barely tolerates her.
Ian, who watches her like he’s just waiting for her to trip.
Ian, who steps in to protect her when she least expects it—and never quite steps back.
Suddenly, Roxy is entangled in a connection she never sought between two men with a history of their own and a growing interest in her.
Mitch wants more, and Ian wants in, but Roxy doesn’t know who she is when she’s not guarding her heart
Caught between past wounds and a future none of them planned for, Roxy has to decide if she’s brave enough to stop running and strong enough to hold onto something real.
Book One in the Disaster Bi Design series, Harmonious Hearts, is an erotic why choose (MMF) novella with a pretty cover and filthy guts.
115 pages, Kindle Edition
Published December 26, 2024
About the author
Darby Quinn
5 books76 followersDarby Quinn writes spicy romances with heart, humor, and heat...emphasis on the heat. With a soft spot for morally gray characters, obsessive MMCs, and villains who get the girl, she crafts stories that will leave you breathless and begging for more.
When she's not writing, Darby is likely drinking a crisp Dr. Pepper, playing cozy video games, and wondering if the new story idea she just had is too wild.
Follow her for more stories that will make you laugh, swoon, blush, and rethink reading in public.
When she's not writing, Darby is likely drinking a crisp Dr. Pepper, playing cozy video games, and wondering if the new story idea she just had is too wild.
Follow her for more stories that will make you laugh, swoon, blush, and rethink reading in public.
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Displaying 1 - 30 of 196 reviews
March 7, 2026
This was honestly so sweet but also very kinky and yummy. Definitely deep and a little dark but I loved that shit.
Big character emotions and development (in less than 150 pages), & even BIGGER smut scenes 🤝
It’s literally just 3 people hashing (and banging) out their immense feelings. Don’t expect a high fantasy. It was still deep af. At least, I felt seen lmao.
Do note, the beginning of this book says THIS IS MOSTLY SMUT. Do not be surprised when you walk in the front door and they already be f*cking. Jfc.
Sometimes reading TW pages and such would really go a loooooong way.
Big character emotions and development (in less than 150 pages), & even BIGGER smut scenes 🤝
It’s literally just 3 people hashing (and banging) out their immense feelings. Don’t expect a high fantasy. It was still deep af. At least, I felt seen lmao.
Do note, the beginning of this book says THIS IS MOSTLY SMUT. Do not be surprised when you walk in the front door and they already be f*cking. Jfc.
Sometimes reading TW pages and such would really go a loooooong way.
January 27, 2025
Oh roxy, you lucky gal you 🙂↕️
I absolutely fricken’ LOVED this book.
Only complaint was that I need more, it was perfect to binge read, and will definitely read again.
I absolutely fricken’ LOVED this book.
Only complaint was that I need more, it was perfect to binge read, and will definitely read again.
February 13, 2025
Got really frustrated with this book. It’s mostly spice but there was so much build up about this guy’s large appendage. She must be a snake if she can fit it in her mouth but it was soooo tight elsewhere *eye roll*. Then the MM part at the end was just thrown in for fun? It wasn’t paced right for me.
July 16, 2026
Roxy gets jealous and insecure when her friend-with-benefits, Mitch, starts benefiting from his own best mate, Ian. However, Ian also wants benefits with Roxy but keeps his distance because she’s, well, a bit angry. Eventually, after much meddling from Mitch, they all benefit harmoniously… in the absolutely-not-walking-the-next-day and definitely- gonna-have-a-sore-throat in the morning harmony 😬🥵. A quick, filthy MMF novella — decent enough if you just want something chaotic and smut-heavy with, well, no plot 😁. It is what it is. Onto the next one. 🤫🤫
April 29, 2025
Well, this was my first time reading this author but I loved every second of it. It was basically 100 pages of pure delightful, hot and heavy, filth. But it was also so much more than that! In such a short span, the author managed to fit in such a range. I swooned, I giggled, I melted, it tugged on my heart and I felt pride for characters we barely knew! Roxy and Ian are two ends of the very same spectrum when it comes to their pain. And they're both criminally misunderstood. The tension between those two was palpable. Mitch was the catalyst and bridge for connecting them. It was a perfect read and I recommend it to everyone who wants a quick and easy, yet extremely fulfilling (and filthy) read mixed with MM action! Oh did i mention, they're both dominant MMCs? If you're thinking about reading it, as Mitch and Ian would both say, stop thinking and just let go. Read it! You won't regret it!
July 18, 2025
DNF at 17%
I'm sorry, but first of all there was no getting to know the characters or what they even work with (or how they know each other.) And then she gets groped by a bunch of guys and nobody stands up for her or confronts the guys??? Not to even mention that she tells Mitch "no" to sex when she notices he's drunk and he tries to convince her otherwise????
I do not like that, nor that this book has zero plot - I've read fanfiction smut better than this.
I'm sorry, but first of all there was no getting to know the characters or what they even work with (or how they know each other.) And then she gets groped by a bunch of guys and nobody stands up for her or confronts the guys??? Not to even mention that she tells Mitch "no" to sex when she notices he's drunk and he tries to convince her otherwise????
I do not like that, nor that this book has zero plot - I've read fanfiction smut better than this.
January 19, 2025
3.5/5 rounded up to 4
Short read, novella length and mostly sex but enjoyed the dynamic between the three with their issues to work out and the power dynamics in the bedroom. It was interesting to see Ian and Roxy work out their insecurities before and during the bedroom scenes especially and the dynamic of the two kind of differing dominants, one more assured and one a bit softer. Generally books that are more focused on sex only aren’t my thing so I’m probably not the target audience but it was a fine read.
There’s some errors where sentences are missing a word at the end or things like wrong word form used, which did pop me out of the flow when reading a little.
However, overall a fun, fast, hot little read - if you’re looking for a quickie read with fun dynamics I think this is worth picking up.
Short read, novella length and mostly sex but enjoyed the dynamic between the three with their issues to work out and the power dynamics in the bedroom. It was interesting to see Ian and Roxy work out their insecurities before and during the bedroom scenes especially and the dynamic of the two kind of differing dominants, one more assured and one a bit softer. Generally books that are more focused on sex only aren’t my thing so I’m probably not the target audience but it was a fine read.
There’s some errors where sentences are missing a word at the end or things like wrong word form used, which did pop me out of the flow when reading a little.
However, overall a fun, fast, hot little read - if you’re looking for a quickie read with fun dynamics I think this is worth picking up.
February 21, 2025
Today I learned I’m into ⚔️
Shit this book is straight up filthy, beautiful smut and I loved every minute of it 🥵🥵
Also the author made her own cover?? What the hell? Girl HOW are you so talented?? Can’t wait to read more of your work.
Shit this book is straight up filthy, beautiful smut and I loved every minute of it 🥵🥵
Also the author made her own cover?? What the hell? Girl HOW are you so talented?? Can’t wait to read more of your work.
July 4, 2026
I need everyone to understand that I went into this thinking “okay cool, established relationships, a bit of jealousy, we love a messy dynamic 😌”
WRONG.
This was not messy. This was… silent chaos.
Three.
Chapters.
Of.
NOTHING.
No dialogue. No communication. No thoughts worth grabbing onto. Just vibes. And not even good vibes. Just… people existing aggressively near each other while I sat there like HELLO??? DOES ANYONE SPEAK IN THIS UNIVERSE???
I was flipping pages like I’d accidentally muted the book.
And the jealousy??? WHERE. It’s just implied tension floating around like a ghost that refuses to actually haunt anything.
There is no plot. I don’t even think there’s a whisper of a plot. If there was a plot it packed its bags, left the country, and sent no forwarding address.
I
just
…
No.
WRONG.
This was not messy. This was… silent chaos.
Three.
Chapters.
Of.
NOTHING.
No dialogue. No communication. No thoughts worth grabbing onto. Just vibes. And not even good vibes. Just… people existing aggressively near each other while I sat there like HELLO??? DOES ANYONE SPEAK IN THIS UNIVERSE???
I was flipping pages like I’d accidentally muted the book.
And the jealousy??? WHERE. It’s just implied tension floating around like a ghost that refuses to actually haunt anything.
There is no plot. I don’t even think there’s a whisper of a plot. If there was a plot it packed its bags, left the country, and sent no forwarding address.
I
just
…
No.
January 11, 2026
Was looking for a novella on social media earlier today and came across this one with a pretty cover and a fun name. Did I read the blurb about the book beforehand? No. Was I upset to find this was a bi-MMF book? Also no. I actually genuinely liked the characters & would have loved more of a story about them. However, as is the case with novellas, it was rushed and truthfully, just about sex & insecurities. 🤷♀️
May 22, 2025
In this short, spicy, quick debut read from Darby Quinn, you have Mitch, Ian, and Roxy all trying to figure out the sparks between them. It will all come to a head at Mitch's promotion party and the spice gets hot! 🔥 This is a spice-heavy, low plot book. I loved it and will definitely be reading the next one in the series!
February 22, 2025
Speechless
I've forgotten what words are, I've been left in a puddle on the floor.
This is one of those books with the cutesy covers in the streets and a big hard spice in the sheets!
I've forgotten what words are, I've been left in a puddle on the floor.
This is one of those books with the cutesy covers in the streets and a big hard spice in the sheets!
March 7, 2025
And she said there was no plot!
Darby is a liar! This book has plenty of plot (enough to get you in your feels and a little choked up) and ALL of the spice! This love triangle quickly turns into a throuple and it was amazing!
Darby is a liar! This book has plenty of plot (enough to get you in your feels and a little choked up) and ALL of the spice! This love triangle quickly turns into a throuple and it was amazing!
March 28, 2025
Wow! For a short and sweet spicy book I wasn't expecting as much story as there was!! I've seen less story in a book that's 500 pages! fab writing, it was enticing and what a perfect way to portray a mix of pain and pleasure that all party's involved enjoy x
Definitely recommend
Definitely recommend
October 30, 2026
Color me Surprised
I never ever thought I'd enjoy 1.A novella 2. A novella unashamedly about the smexy times.
I was pleasantly surprised I enjoyed both aspects of this book and although the author said not to expect much plot aside the sex, it really was a well written piece of work. I will definitely be picking up the next book.
I never ever thought I'd enjoy 1.A novella 2. A novella unashamedly about the smexy times.
I was pleasantly surprised I enjoyed both aspects of this book and although the author said not to expect much plot aside the sex, it really was a well written piece of work. I will definitely be picking up the next book.
February 23, 2025
“Stop means stop. No means no,” I say simply. “That’s it?” Ian says, his eyes wide. - Yeah me too, Roxy
July 23, 2025
4⭐️
Mitch just did not need to be here i’m sorry
Mitch just did not need to be here i’m sorry
September 6, 2025
spicy
This was both sweet and spicy. Why choose when you can have them both! The MCs all want each other and they finally decide to get there! This was short and spicy.
This was both sweet and spicy. Why choose when you can have them both! The MCs all want each other and they finally decide to get there! This was short and spicy.
September 12, 2025
Zero plot, all filth 😮💨
January 26, 2026
Great quick and easy smutty read, read it in 2 hours to get me back into reading after a reading slump took over
March 3, 2026
Para ser tan corto y sin trama, esa pequeña introducción tan dramática y sincera, que qué pasión y tensión entre ellos
October 27, 2026
No real plot. Just smut. Which is fine lol. But here’s your warning! 😂😂
October 22, 2026
Weirdly messy? I don’t mind all smut no plot but this didn’t hit like it could’ve.
June 7, 2025
A quick, fun, super spicy read! I loved it! Full of spice but also full of heart, made me feel things everywhere!
can't wait for this author's next work!!
can't wait for this author's next work!!
October 18, 2026
Steamy!
This was so hot and intense that I was out of breathe the whole time!!! I felt like I was going to pass out!, 😩while wishing I was this girl 😳🤣🤣😜! I’m trying to find this town with a flashlight lol and I’m tryna see if there is another set of besties ready to treat me this way 🤨🤨❓🔥🔥🔥🥵🥵🤯😱!!!!!yes I will definitely be finishing the series 😜🔥🤣🤣
This was so hot and intense that I was out of breathe the whole time!!! I felt like I was going to pass out!, 😩while wishing I was this girl 😳🤣🤣😜! I’m trying to find this town with a flashlight lol and I’m tryna see if there is another set of besties ready to treat me this way 🤨🤨❓🔥🔥🔥🥵🥵🤯😱!!!!!yes I will definitely be finishing the series 😜🔥🤣🤣
October 20, 2026
All smut no plot. Do not recommend. No one proofread this thing I think.
October 18, 2025
No plot. All smut. Easy fast read. Cant complain!
January 25, 2025
A quick read that’ll knock your socks off
If I ever thought about writing a book, this is the exact book it would be. It was the exact amount of filth I want in a book. I loved it so much. It was a very quick MMF read (120 pages). The dirty talk starts on page 2. I absolutely fell in love with the characters. 🌶️🌶️🌶️🌶️🌶️/5
It even had a little twist of events toward the beginning, to get the ball rolling, that I didn’t expect. Well done!
If I ever thought about writing a book, this is the exact book it would be. It was the exact amount of filth I want in a book. I loved it so much. It was a very quick MMF read (120 pages). The dirty talk starts on page 2. I absolutely fell in love with the characters. 🌶️🌶️🌶️🌶️🌶️/5
It even had a little twist of events toward the beginning, to get the ball rolling, that I didn’t expect. Well done!
September 10, 2025
We’re going to categorize Harmonious Hearts as dark erotica. It’s a very steamy MMF romance novella with strong biromantic elements. And since it’s MMF, yes — the MMCs cross swords. The dynamic here is Grumpy × Sunshine × Himbo, with the FMC as the black cat of the group. Personally, Himbo MMF is one of my favorite setups, and Quinn leans all the way into it.
There isn’t much plot - this novella is essentially chapter after chapter of them all getting dicked down, with the opening couple of chapters serving only as a warm-up before the nonstop spice begins. They work out their feelings through sex, which wouldn’t really fly in the real world, but in fantasy land it makes for a fun, indulgent read. Ideally, they would have talked out their emotions and then jumped into bed, but I can’t exactly complain about characters deciding to hash out their issues while having mind-melting orgasms.
Summary: Harmonious Hearts is pure, unapologetic dark erotica. If you’re looking for heavy plot or emotional depth, this won’t be your book. But if you’re craving relentless spice with a fun MMF dynamic and a cast that feels like trope archetypes come to life, then it’s absolutely worth the read. I gave it 4/5 stars for delivering exactly what it promises: heat, humor, and plenty of himbo energy.
There isn’t much plot - this novella is essentially chapter after chapter of them all getting dicked down, with the opening couple of chapters serving only as a warm-up before the nonstop spice begins. They work out their feelings through sex, which wouldn’t really fly in the real world, but in fantasy land it makes for a fun, indulgent read. Ideally, they would have talked out their emotions and then jumped into bed, but I can’t exactly complain about characters deciding to hash out their issues while having mind-melting orgasms.
Summary: Harmonious Hearts is pure, unapologetic dark erotica. If you’re looking for heavy plot or emotional depth, this won’t be your book. But if you’re craving relentless spice with a fun MMF dynamic and a cast that feels like trope archetypes come to life, then it’s absolutely worth the read. I gave it 4/5 stars for delivering exactly what it promises: heat, humor, and plenty of himbo energy.
April 7, 2025
This book is more of a 2.5/2.75 than a 3 star for me. I know this book was more of a "novella", but I thought there was going to be some sort of build up to the sex part. The book was 75% smut, and the pacing just wasn't my cup of tea. I wanted to know more about the characters and it was like the author just wanted to write smut and not an actual story, which is fine, but not what I was expecting this to be.
It was recommended to me when I searched for "sword crossing" MMF books, and even then, there wasn't as much of the MM part as I was expecting. The MM part was minimal, and just kind of thrown in there at the end. They weren't as involved with each other as I wanted them to be. The dirty talk was good, but there were parts that just read cringey to me.
The writing style was very repetitive, using the same words and phrases over and over again to convey the same thing happening. There wasn't a lot of variety in the character movements or dialogue. It was boring for some parts, and took me longer to read than it should have for how short it was.
It was recommended to me when I searched for "sword crossing" MMF books, and even then, there wasn't as much of the MM part as I was expecting. The MM part was minimal, and just kind of thrown in there at the end. They weren't as involved with each other as I wanted them to be. The dirty talk was good, but there were parts that just read cringey to me.
The writing style was very repetitive, using the same words and phrases over and over again to convey the same thing happening. There wasn't a lot of variety in the character movements or dialogue. It was boring for some parts, and took me longer to read than it should have for how short it was.
Displaying 1 - 30 of 196 reviews