Which Best Friend Unrequited Love Books Feature Slow-Burn Romantic Build-Ups?

From Best Friends To Secret Lovers!! Rory and Todd have been best friends for thirteen years. They thought they knew every secret between them but a playful dare unlocked a lifetime of hidden feelings. It strips away the pretense and leaves only a burning, undeniable truth: They’re in love. But now they have to battle the outside world that is desperate to keep them as ‘best friends’

"I want you to take my virginity," I tell my best friend. He chokes on his drink. His eyes go wide, blinking at me like he misheard me. "Dawn." "Not now, obviously. Just promise me you won't let me turn twenty still a virgin," I say, biting my lower lip. He stares at me like I just sprouted two horns. His eyes move slowly across my face. His lips part. He says nothing. "Dawn," he whispers like a plea. For so long, I have loved him. I wanted all my firsts to be his. Instead, I end up in his brother's bed. Killian. I should stay away from him. I shouldn't want him. Not only is he cocky, arrogant — he's the bane of my existence. Yet when he touches me, it feels like I'm the most precious thing in his life.

Mistakes? I’ve made plenty. The biggest one? Falling head over heels for Brian Lockwood—my brother’s best friend and the captain of the school’s basketball team. For years, I lived in the shadow of my one wish: for him to see me as more than just Simon’s little sister. But how could he, with Lyla, his perfect girlfriend, glued to his side? Then everything changed. Lyla cheated, Brian’s heart shattered, and he was desperate for a distraction. That’s when he came to me with a deal—a no-strings-attached arrangement where we could give each other exactly what we wanted. I saw my chance. I thought I could make him fall in love with me. But I didn’t account for how messy things could get—how keeping it all a secret from Simon would twist everything. And when Brian crossed a line I couldn’t forgive, I knew it was time to let go of my high school crush. Fast forward three years. I’m over him. Or so I tell myself. Except now Brian’s back, no longer the heartbroken boy I knew but a leading basketball star with one goal: to win me over. I swore I wouldn’t fall for him again.

Anna Parker has always been the invisible best friend, no one ever chooses. But senior year is her chance to rewrite the story. One reckless choice pulls her into a dangerous web of lies, betrayal, and forbidden attraction, where popularity comes at a price and every secret has consequences. Because the fastest way to ruin a friendship is to want what was never yours

He shouldn’t have imagined her lying naked on his bed. She shouldn’t have imagined his devilishly handsome face between her legs. But it was too late. Kiara began noticing Ethan's washboard abs when he hopped out of the pool, dripping wet after swim practice. Ethan began gazing at Kiara’s golden skin in a bikini as a grown woman instead of the girl next door he grew up with. That kiss should have never happened. It was just one moment in a lifetime of moments, but they both felt its power. They knew the thrumming in their veins and desperation in their bodies might give them all they ever wanted or ruin everything if they followed it. Kiara and Ethan knew they should have never kissed. But it's too late to take that choice back, so they have a new one to make. Fall for each other and risk their friendship or try to forget one little kiss that might change everything. PREVIEW: “If you don’t want to kiss me then... let’s swim.” “Yeah, sure.” “Naked.” “What?” “I always wanted to try skinny dipping. And I really want to get out of these clothes.” “What if someone catches you... me, both?” “We will be in the pool, Ethan. And no one can see us from the living room.” I smirked when I said, “Unless you want to watch me while I swim, you can stay here.” His eyes darkened, and he looked away, probably thinking the same when I noticed red blush creeping up his neck and making his ears and cheeks flush. Cute. “Come on, Ethan. Don’t be a chicken...” “Fine.” His voice was rough when he said, “Remove that sweater first.”

My best friend had one rule: stay away from my brother. But what he didn't know was that his brother kept me up all night. Wren Mercer had spent years being just Ross's best friend. Fine with holidays at the Calloway house, years of watching Dani, Ross's older brother, move through life like nothing could touch him, fine with the fact that he never once looked at her like she was worth the trouble. So she did what any sensible girl would do, she found someone else. Blake Hendrix was everything that made sense on paper. Charming, attentive, and most importantly, not Dani Calloway. She told herself it was moving on. She told herself it was working. What she didn't know was that Blake had his own reasons for getting close to her, ones that had everything to do with the brother she was trying so hard to forget. When Ross invites her to move into their off-campus apartment, she tells herself it's still fine. She has Blake. She has a plan. Dani barely registers her existence anyway. She can handle proximity. She's wrong. Because Dani does notice her. He always has. What starts as tension becomes stolen moments, a secret neither of them planned, and the slow terrifying realization that this is the most real thing either of them has felt in years. But Ross is right there. Blake is closer than she thinks. And secrets don't stay hidden forever. She fell first. He fell harder. And what breaks between them might not be fixable.