I Fell For My Best Friend's Brother, And Our Secret Is About To Ruin Everything

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For years, Louis was just my best friend's older brother, until one stolen kiss turned into a secret, passionate affair we couldn't stop. Now we're caught between our forbidden feelings and our loyalty to her, and we have to decide if confessing the truth is worth destroying her trust forever.

age gaptoxic relationshipsecret relationship
Chapter 1

The Summer Barbecue

The familiar scent of charcoal and freshly cut grass hit Terri the moment she stepped through the side gate into the sprawling backyard. Laughter from a dozen conversations mingled with the sizzle of meat on the grill, a soundtrack she’d known every summer for the past ten years. Margaux’s family barbecues were a staple of her life, as comfortable and predictable as her own reflection.

“You made it!” Margaux detached herself from a huddle of aunts and threw her arms around Terri’s neck. “I was about to send out a search party. My cousin Daniel is already asking about you.”

Terri laughed, hugging her back. “Give me a chance to grab a drink first, at least.”

Her eyes scanned the yard, a sea of familiar faces, but they didn’t stop until they landed on the man commanding the large, smoking grill. Louis. He’d always just been Louis, Margaux’s older brother. A fixture. Sometimes annoying, sometimes funny, mostly just… there.

But something was different today. Or maybe she was.

He was wearing a simple grey t-shirt, the cotton stretched taut across the broad, solid line of his shoulders as he expertly flipped burgers with a long metal spatula. The muscles in his back and arms moved with an easy, practiced strength. He turned his head to say something to their uncle, and a genuine, unforced smile lit up his face. It wasn't the teasing smirk he usually gave her and Margaux, but something warmer, more relaxed. It crinkled the corners of his eyes.

Terri’s stomach did a strange, slow roll. It wasn’t the flit of a simple crush; it was a heavy, sinking heat that pooled low in her belly, confusing and immediate. She’d seen him a thousand times, in sweatpants on the couch, in a suit for a wedding, in swim trunks by the pool. He had never, not once, registered like this. She found herself watching the line of his jaw, the way a few strands of dark hair fell across his forehead as he focused on his task. He looked solid. Capable. He looked like a man, not just her best friend’s brother. The realization sent a jolt through her, a sharp awareness that was both thrilling and deeply unsettling. Her mouth went dry. What the hell was wrong with her?

Shaking her head to clear it, Terri forced a smile as Margaux was pulled away toward the volleyball net. Left to her own devices, she made a beeline for the giant blue cooler resting in the shade of an oak tree, needing a cold drink to quiet the sudden, unfamiliar heat under her skin. As she bent to lift the heavy lid, another hand reached it at the same time.

“Allow me.” Louis’s voice was deeper up close, a low rumble that vibrated right through her. He lifted the lid for her, his arm brushing against her shoulder. The contact was brief, insignificant, but it sent a fresh wave of warmth through her.

“Thanks,” she managed, her voice steadier than she felt. She grabbed a can of soda, the cold aluminum a welcome shock against her palm.

He pulled out a beer for himself, twisting the cap off on the edge of the cooler. “Surviving the annual inquisition?” he asked, leaning back against the tree trunk. His eyes, a shade of brown so dark they were almost black, held a hint of amusement.

“Barely,” Terri admitted, playing along. “Your cousin Daniel seems to think I’m his soulmate.”

Louis chuckled. “He thinks that about every woman under forty who makes eye contact with him. It’s a family curse.”

The easy banter was familiar, but the way he was looking at her wasn’t. He wasn’t looking through her, or past her. His gaze was direct, focused. The playful light in his eyes faded, replaced by a weariness that settled in his features, pulling at the corners of his mouth. He took a long swallow of his beer, his throat working.

“Everything okay?” she asked, the question slipping out before she could stop it.

He seemed surprised by her noticing. He stared down at his bottle for a moment, rolling it between his hands. “Just work shit,” he said, his voice dropping a little. “We lost a big pitch this week. One I was leading.”

Terri leaned against the tree next to him, their shoulders not quite touching. “I’m sorry. What happened?”

He sighed, a heavy, frustrated sound. “The client changed their mind last minute. Went with a safer, bigger firm. I just… I feel like I let my team down. We put in months of late nights for nothing.” He wasn’t just complaining; he was dissecting it, the words coming out quietly, edged with a frustration that felt raw and real. “It’s the kind of project that could have put our firm on the map. Now it’s just… gone.”

She didn’t offer a useless platitude like ‘you’ll get the next one.’ Instead, she found herself saying, “It sounds like you were invested in it for more than just the money.”

He finally looked at her again, and the surprise in his eyes was unmistakable. He seemed to see her, really see her, for the first time all day. “Yeah,” he said, his voice soft with something that sounded like relief. “Yeah, I was.” The noise of the party, the shouting from the volleyball game, the distant music—it all seemed to recede, leaving them in a quiet bubble of their own. He was no longer just Margaux’s brother; he was a man with ambitions and disappointments, and he was sharing them with her.

The moment hung between them, a fragile bubble of understanding in the midst of the party’s cheerful chaos. He didn't move away, and for the first time, Terri didn't feel the urge to fill the silence. She just watched him, taking in the tired lines around his eyes and the quiet strength in his posture.

The sun began to dip below the horizon hours later, painting the sky in shades of orange and deep purple. The crowd had thinned, leaving only close family and Terri, who always stayed to help clean up. The air grew cooler, carrying the scent of citronella and dampening grass. Armed with a trash bag, Terri moved through the yard, gathering paper plates and plastic cups, the familiar rhythm of the post-party cleanup a strange comfort.

Louis was doing the same, clearing the main table where serving dishes and leftover salads sat. She worked her way toward him, their paths destined to cross. She reached the table just as he did, their shared goal the large, heavy ceramic platter that had held a mountain of corn on the cob.

“I’ve got it,” they said at the same time.

Their hands met over the cool, smooth ceramic. It wasn't just a brief, accidental brush. Her fingers grazed the back of his hand, and for a split second, his hand covered hers, his palm warm and slightly calloused against her skin. A sharp, undeniable current shot up her arm, straight to her chest, where her heart gave a heavy thud. It was a jolt so potent it felt like a physical shock, making the breath catch in her throat.

His fingers tightened ever so slightly over hers, a silent, deliberate pressure that held her in place. It was a question and an answer all at once. Slowly, she lifted her gaze from their joined hands to his face. His expression was stripped of all pretense. The easygoing smile was gone, replaced by an unguarded intensity that mirrored the heat coiling low in her stomach. His dark eyes searched hers, and she saw the same startled awareness she felt reflected back at her. The air crackled, thick with everything that had passed between them all day—the long look by the grill, the vulnerable confession by the cooler, and now this. This undeniable, terrifying touch. His lips were slightly parted, as if he were about to speak, but no words came. There was no need. His gaze said everything, acknowledging the shift, admitting to the pull that was now a tangible force between them.

“Terri! You leaving without saying goodbye?”

Margaux’s voice, bright and oblivious, sliced through the heavy silence. The spell shattered.

They pulled their hands back as if the platter were suddenly red-hot. Louis straightened up abruptly, turning his head toward the house and clearing his throat. Terri’s cheeks burned, a hot flush of guilt and adrenaline creeping up her neck. She couldn’t look at him. She stared fixedly at a stray napkin on the table, her pulse hammering in her ears. The space between them, once charged with unspoken desire, was now filled with a sharp, panicked awkwardness. The line had been there, and for one breathless moment, they had both leaned right over it.

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