by 
Okay, confession time: I’m a sucker for brother’s best friend romances.
There’s just something about the forbidden and the familiar colliding that makes my heart race!
Maybe it’s because I’ve always loved the idea of a long-time friendship blossoming into something deeper—especially when it’s with someone who’s been right under your nose the whole time.
Whether it’s the tension or the inevitable ‘will they or won’t they’ drama, these stories never fail to deliver.
If you’re looking for some books that will make your heart skip a beat (and your cheeks blush a little), these 10 brother’s best friend romances are just what you need.
Trust me, I’ve devoured my fair share of them, and now I’m sharing my favorites with you!
1. To Love Jason Thorn by Ella Maise
Olive Taylor has always had a crush on her brother’s best friend, Jason, but after years of heartbreak, she’s ready to move on.
Now a bestselling author, Olive is forced to work with Jason, who’s a famous actor starring in the movie adaptation of her book.
Old feelings resurface, but this time, Jason’s in her life for more than just professional reasons.
Can Olive handle her past with him, or will the friendship and chemistry between them ruin everything?
2. The Bookworm’s Guide to Dating by Emma Hart
Kinsley Lane is bookish and introverted, not looking for love, but when her brother’s best friend, Josh, helps her navigate the dating scene, sparks fly.
The more time they spend together, the more Kinsley realizes that Josh might be the one she’s been searching for all along.
Can she break free from her insecurities and see him as more than just her brother’s best friend?
3. Sleeper by Kayley Loring
Shane Miller’s life is a mess until his best friend’s little sister, Willa, steps in to help care for his kids.
Willa, a quirky grad student, becomes his only source of calm, and Shane quickly realizes he’s falling for her.
But can Shane handle the tension of falling for his best friend’s sister while keeping his family together?
4. Mr. Wrong Number by Lynn Painter
Olivia Marshall starts a steamy text relationship with a wrong number, only to discover it’s her brother’s best friend, Colin.
When they’re forced to pretend to be a couple, the sparks between them grow undeniable.
Can Olivia and Colin move past their history and see each other as more than just friends?
5. Bad Habit by Charleigh Rose
Briar’s been in love with her brother’s best friend, Asher, for years, but after a kiss that ruined everything, they went their separate ways.
Now, Asher is back in town, and Briar can’t help but be drawn to him again.
Will they be able to work through their past and make things right?
6. Flirting with the Frenemy by Pippa Grant
Ellie Ryder hires Grady Rock to pretend to be her boyfriend, but things get complicated when her brother’s best friend, Wyatt, steps in.
The chemistry between them is undeniable, and Ellie must decide if their fake relationship might turn into something real.
7. Come to Me Quietly by A.L. Jackson
Jared Holt has spent years avoiding Aleena Moore, his best friend’s younger sister.
When they reconnect, old feelings resurface, but Jared fights them, believing he doesn’t deserve love.
Can Aleena break down his walls, or will Jared’s past ruin their chance at happiness?
8. Fair Catch by Kandi Steiner
Tate Fanning’s forced to share a room with Zeke Collins, her brother’s best friend.
What starts as a simple arrangement quickly turns into something more as they realize the attraction between them.
Can they fight their growing feelings, or will their friendship—and their secrets—destroy everything?
9. Could Have Been Us by Corinne Michaels
Stella has been in love with her brother’s best friend, Jack, for years.
After a brief kiss, Jack kept his distance, but when they reconnect, old feelings reignite.
Can they face their pasts and build a future, or will their history tear them apart?
10. Twisted Love by Ana Huang
Alex Volkov is a billionaire haunted by his past, and he has no interest in love—until he’s forced to take care of Ava, his best friend’s little sister.
As the chemistry between them grows, they must face dark secrets and decide if their love is worth the risk of everything falling apart.
11. Fix Her Up by Tessa Bailey
Georgie Castle wants to prove she’s not just her family’s “clown” by transforming herself, and enlists the help of Travis Ford, her brother’s best friend.
What starts as a fake relationship to help both of them gain respect turns into something real as they both begin to confront their feelings.
12. Rebel Roommate by Jeannine Colette and Lauren Runow
Stacy Brightmore moves in with her brother’s best friend, Wesley Knight, and finds herself tangled in a battle of attraction.
Despite their history of teasing each other, living together brings out new feelings, and the brother’s best friend rule becomes harder to follow.
13. 99 Percent Mine by Sally Thorne
Darcy Barrett has always had a soft spot for Tom Valeska, her brother’s best friend.
When Tom comes back into her life to help fix up a house, Darcy’s feelings for him reignite, but she has to compete with the fact that he’s always seen her as just his best friend’s sister.
14. Her Brother’s Best Friend by Hannah Jo Abbot
Emily Franklin finds herself falling for Cole Sanford, her best friend’s older brother.
As the best man in a wedding Emily is planning, Cole is off-limits due to their connection, but their undeniable chemistry threatens to turn their relationship into something more than just friendship.
15. The Off Limits Rule by Sarah Adams
Lucy’s brother forbids her from dating his best friend, Cooper James, but that doesn’t stop her from being attracted to him.
Despite her brother’s rules, Lucy and Cooper start exploring their chemistry, breaking all the “off-limits” rules in the process.
16. When the Time Is Right by Aly Martinez and M. Mabie
Alexis has known Hudson Bradley, her brother’s best friend, for years, but recently, things have started to change.
Despite their past, Alexis can’t deny her feelings, and with Hudson’s complicated situation, she’s determined to make him hers, even if it means breaking the unspoken rules.
17. Once Upon A Wild Fling by Lauren Blakely
Roxy Sterling knows better than to fall for her brother’s best friend, Miles Hart, but when he asks her to be his date to a reunion, the attraction between them becomes impossible to ignore.
As they share moments of undeniable chemistry, both must decide if they’re willing to risk breaking the rules of friendship.
18. Power Plays & Straight A’s by Eden Finley
Foster Grant has one job: keep an eye on Zach, his brother’s best friend, and absolutely don’t flirt with him. Easy, right? Not so much.
Foster has enough on his plate with hockey and dreams of going pro, but Zach’s nerdy charm makes sticking to the rules harder than expected.
On the other hand, Zach has always found Foster confusing—and now that they’re spending more time together, things get even messier.
Between Zach’s inexperience and Foster’s attempts to stay focused, they’re skating dangerously close to crossing the line from friends to something more.
19. Burnout by CoraLee June
Blakely knows falling for Decker Harris, her brother’s best friend and her teacher, is all kinds of wrong.
But living in the same house makes it impossible to ignore their chemistry. One minute Decker is distant and untouchable; the next, he’s pulling her closer.
It’s a rollercoaster of emotions, and Blakely can’t stop obsessing over the “what ifs” of their situation.
Eventually, she realizes love isn’t about fate—it’s about choices. And Blakely is ready to choose Decker, no matter how complicated things get.
20. Tempting the Best Man by J. Lynn (Jennifer L. Armentrout)
Madison has always had a soft spot for her brother’s best friend, Chase.
When they end up spending more time together for her brother’s honeymoon , the attraction between them becomes impossible to ignore.
Both must grapple with the consequences of crossing the line, especially when their emotions deepen into something more.
Which of these brother’s best friend romances are you dying to read?
Share your thoughts in the comments below, and let’s chat about the one you’re most excited about!
Don’t forget to check out my other posts on irresistible romance tropes, like friends to lovers or fake dating – they’re just as swoon-worthy!
