Best Friend's Sibling
When someone falls for their best friend's brother or sister, creating delicious tension between loyalty and desire — with family dynamics and friendship boundaries making everything beautifully complicated.
Discover 19 romance books featuring best friend's sibling.
19 of 19 books
Restitution
Leigh Rivers
Kade wages war to reclaim his girl — but can Stacey break free from the monster who stole them both?
When Alec Met Evie (Appies, #6)
Jenny Proctor
A newly divorced mom crashes with her childhood hockey crush — her best friend's older brother — after her rental floods
Sleeper
Kayley Loring
An insomniac movie star can't sleep unless his best friend's sister — the temp nanny — is in the house.
His to Protect: A Bodyguard Bad Boys/Masters and Mercenaries Novella
Carly Phillips
A brainiac scientist on the run turns to the sexy bodyguard — her best friend's brother — she once pushed away.
Dangerous Games (Tempting SEALs, #2)
Lora Leigh
A deadly Navy SEAL must protect his best friend's secret DEA sister — and resist the explosive chemistry between them.
Crave Me (The Good Ol' Boys, #4)
M. Robinson
Four small-town bad boys. Four messy, complicated love stories. One angsty collection.
Soldier Boy
Donna Alam
Her best friend's annoyingly hot soldier brother shows up needing a place to stay — sisters before misters, oops.
Married to the Grumpy CEO: A Small Town Off-limits Clean Romance
Ann Smith
A grumpy CEO needs a convenient wife — and his late best friend's little sister needs a lifeline.
Forbid Me (The Good Ol' Boys, #2)
M. Robinson
He swore he'd stay away from his best friend's sister — but some lines are made to be crossed.
Saddle Broke
Darah Lace
She knows his darkest kinks — and she's back in town to prove she can handle every one of them.
This Summer Will Be Different
Carley Fortune
Every summer she promises herself she won't end up in her best friend's brother's bed. Again.
Going Nowhere Fast
Kati Wilde
A road trip forces enemies together — but the real danger is the secret she's keeping from him.
Vicious (Sinners of Saint, #1)
L.J. Shen
A cruel, obsessive lawyer tracks down the girl he bullied — and wants her back at any cost.
Romancing Mister Bridgerton (Bridgertons, #4)
Julia Quinn
She's loved him for years in secret — but her bigger secret could destroy them both.
The Art of Pretend: A Complicated Summer Romance Novel of Toxic Friendship and Forbidden Love
Lauren Kuhl
She falls for her toxic best friend's golden-boy brother — and knows Etta can never find out.
My Cone and Only
Susannah Nix
He's loved his best friend's little sister for years — but wanting her could cost him everything.
Grumpy Fake Boyfriend
Jackie Lau
A reclusive writer fakes a relationship with his best friend's little sister at a couples' beach getaway — feelings not
Her Best Friend's Brother
T.J. Dell
She's been in love with her best friend's older brother since she was seven — and he's finally noticing her.
99 Percent Mine
Sally Thorne
She's been 99% in love with her brother's best friend since she was eight — now he's staying in her house.