Sienna

The sound of the Car’s front door clicking shut cut through the garage like a gunshot.

Jaxon and I froze.

We were still pressed close, sweating profusely and breathing hard. Our skin was damp from what we’d just done.

Not a mistake.

Not an accident.

A choice.

A terrible, perfect, irreversible choice.

“We have to move,” I whispered, chest heaving.

His jaw clenched. He gave one sharp nod.

We scrambled. I yanked up my jeans, fumbling the button with shaking fingers. He dragged his shirt over his head so fast it caught in his hair. The garage light buzzed above us, throwing shadows over the mess we’d left; clothes on the floor, my bra by the toolbox, his belt near the workbench.

The heat from minutes ago was gone. Fear took its place. Sharp. Electric.

“Go,” he ordered in a low, urgent voice. “Your room. Now.” he ordered

“What about you?”

“I’ll stay here. I’ll say I was grabbing something from the car. It’ll look normal.”

Normal.

The word almost made me laugh. We were so far from normal it hurt.

I just nodded, snatched up my bra, and bolted for the side door. My heart hammered loud enough I swore they could hear it.

The hallway inside was warmer than the garage. Shadows stretched across the stairs. Every creak in the wood felt like a gunshot. I held my breath, moving fast, two steps at a time, until I finally slipped into my room, shut the door, and locked it.

The click of the lock was my first real breath. I slid down the door, my back pressed against it, the cold wood grounding me.

My body was still buzzing. Every nerve alive. My lips swollen from his kiss, my thighs sore from his grip, my chest tight with the echo of his voice whispering my name like it belonged to him.

But the fear… oh god, the fear was worse.

Downstairs, voices floated up. My dad’s and Jaxon’s mum were asking about homework, dinner plans, Jaxon answered like nothing had happened. Then the conversations continued.They were calm and normal. Too normal I couldn’t make out the words clearly, and that made it worse. My imagination filled in the blanks. I heard Jaxon smiling with my dad over their continued conversations … like he hadn’t just been buried inside me against a garage wall.

My phone buzzed in my hand.

A text message

Jaxon: Are you okay?

My thumbs hovered. Was I?

No. I wasn’t okay. I’d just had sex with my stepbrother in a dusty garage under a bare bulb and nearly got caught. My hands were still trembling. My chest wouldn’t stop rising and falling like I couldn’t get enough air.

Me: I don’t know. I can’t breathe.

The dots appeared instantly as another message dropped.

Jaxon: Come to my room. Now.

My stomach flipped.

Me: Are you crazy? They’re right downstairs.

Jaxon: They’re watching TV. They won’t move for hours. Please. I need to see you.

Please.

The word made my pulse skip.

I stared at the lock. My brain screamed stay. But my body… my body was already moving. The thought of leaving things unfinished, of ending it with panic and silence, was unbearable.

I turned the lock slowly, eased the door open, and slipped into the hall.

It was quiet. The faint sound of a laugh track drifted from the living room. My heart pounded with every step down the hallway, like the house itself could hear me sneaking toward his room.

When I reached his door, I froze. My hand hovered on the knob. One breath. Two. Then I pushed it open.

Jaxon sat on the edge of his bed, the glow of his phone lighting his face. His eyes snapped up, found me instantly. Relief flickered in them, sharp and raw.

He patted the space beside him.

I closed the door behind me, crossed the room, and sat. The mattress dipped under my weight.

Silence wrapped around us. Heavy. Charged.

“I can’t believe we did that,” I whispered.

“I can’t believe we didn’t do it sooner.” His smirk was faint, tired.

I swallowed hard. “What are we doing, Jaxon? What is this?”

“I don’t know.” His eyes didn’t leave mine. “But I can’t stop thinking about you.”

“Same,” I admitted, voice breaking. “It’s driving me insane.”

His hand slid over mine, fingers weaving through like it was natural. “Don’t lie to me. Don’t lie to yourself. You felt it. The way you look at me… fight me… want me. It’s all part of it.”

“Part of what?”

“Part of us.” He squeezed my hand. “This messy, screwed-up, perfect thing.”

And then his hands were on my face again, pulling me into a kiss that was the opposite of the garage. Slow. Lingering. Deep. His mouth tasted of want and defiance.

I melted. Completely.

“I want you again,” he murmured against my lips. “Here. In bed. Where I can take my time.”

My body answered before my mind could catch up. I tugged at his shirt. He pulled me onto the bed, the sheets soft, the room warm, dim, safer than the garage but no less dangerous.

This time, there was no rush. My hands traced his chest, my mouth pressed to his skin. His breath caught when I slid lower, filling my mouth with him.

“Sienna…” My name tore out of him, desperate. His hands tangled in my hair.

I moved back up, lips swollen, kissing him hard. His hips rocked against mine, slow, steady. He rolled me onto my back, his weight pressing me into the mattress.

His fingers slipped inside me, curling, stroking. My moans spilled into his mouth, muffled, needy. My body arched under him as his other hand squeezed my breast, his teeth grazing my neck.

“God, you’re dripping for me,” he groaned.

“Jaxon…” My voice broke, high and helpless.

He pushed inside, slow, deep, deliberate. Every thrust unhurried, like he wanted to brand me from the inside out.

“This isn’t just sex,” he whispered, forehead against mine. “This is us.”

“Wrong,” I gasped, even as my body clung to him. “So wrong…”

“Then why does it feel so right?”

The rhythm built, his hand working my clit as he thrust deep, steady, relentless. Pleasure tangled with fear, shame, hunger until I couldn’t separate them.

The orgasm came softer than the garage, but deeper. My body trembled, breathless, tears stinging my eyes. His name tore out of me as he groaned into my neck, releasing with a shudder that rocked through both of us.

We collapsed tangled, my head on his chest, his heart hammering against my cheek.

“We can’t do this again,” I whispered when I could finally breathe.

His body stilled. “What?”

“If we get caught, my dad will lose it. This is insane.”

His jaw tightened under my hand.

“Is that what you really think? That we just… stop? Pretend this never happened?”

“No! I just…” My throat closed. “I’m scared, Jaxon. I’m so scared.”

“So what? We’re supposed to go back to fighting over dinner? To acting like nothing’s there?” His voice cut sharp. “That’s not happening.”

He shoved off the bed, sheets ripping away with him. His eyes burned, hard and angry.

“Jaxon..”

“No.” His voice was low, final. “You wanted fire, Sienna. Now you live with the burn. There’s no turning back. Not for me. Not for you.”

He yanked on his sweatpants, jaw locked, and stormed out, the door slamming behind him.

I lay there in his bed, body wrecked, heart racing, his words burning holes into me.

No turning back.

Sienna

The room still smelled of him when I slipped out of his bed. My legs trembled as I pulled on my clothes, skin still humming from where his hands had been. The sheets clung to my thighs like they wanted to hold me there, but I forced myself to move.

I paused at the door, my chest rising and falling too fast. What had we just done? My lips still tingled, swollen from his kisses, and every step I took down the hall carried the weight of a secret I had no idea how to bury.

The house was quiet. The kind of silence that makes every creak in the floorboards sound like thunder. I pressed a hand to my chest, trying to calm the wild beat of my heart. No one could know. Not now. Not ever.

I slipped into my own room before dawn had even softened the sky. My fingers brushed my lips again, and I shut my eyes, replaying everything. The way he pulled me close. The way I couldn’t say no. The way I didn’t want to.

When morning came, I forced myself to act normal. To wash my face, fix my hair, and sit at the long dining table like nothing had happened in the dark hours before.

I stirred the food on my plate without tasting it. The clatter of cutlery from the kitchen made me jump. I told myself to breathe, to smile, to pretend.

And then I saw him.

Jaxon.

Walking toward the dining room with that same quiet intensity, his gaze sweeping the room before locking onto mine. My stomach twisted, heat rushing up my neck.

I gripped the edge of the table, praying no one else could see what passed between us in that split second.

Jaxon

“I should feel satisfied,” I muttered into the dark, palms dragging down my face. “But I’m fucking starving.”

The bed was cold without her. Sheets smelled like her skin, my hands still smelled like her hair, but she’d slipped out like what we’d done was something dirty like I was something dirty.

She ran.

Not just from my bed. From me.

And that wide-eyed, guilty look she’d left behind burned hotter than her mouth ever had.

By morning, the house was too damn quiet. My old man hummed while flipping pancakes, Sienna sat at the table clutching her mug like it was a shield. And me? I wanted to drag her upstairs and remind her what she’d done. What we’d done.

Instead, I dropped into the chair across from her.

She didn’t look up. Not once. Not when my leg brushed hers under the table. Not when I let my phone drop just to make her glance. Nothing.

“Morning, you two,” Lena sang as she walked in. Sunshine, small talk, fake ease.

“Morning, Mom,” I said flat.

Sienna’s voice was smaller. “Morning, Lena.”

Lena frowned. “You two are quiet. Everything okay?”

Sienna forced a smile. “Just tired.”

I let the corner of my mouth twitch. “Yeah. Long night.”

Her eyes shot to mine with a flash of panic then darted away so fast it almost made me laugh. Almost.

“Jaxon, phone down,” Lena said gently.

I tossed it aside, leaned forward. Finally, her gaze collided with mine for a split second. Wide. Guilty. Terrified. Exactly like last night.

She bolted up. “I need some fresh air.”

And just like that, she ran again.

But she had no clue, I was already following.

Sienna

The air outside was sharper than coffee. Cleaner than guilt. I pulled my jacket tight and walked, anywhere, nowhere, just away from that kitchen, away from Jaxon’s eyes cutting into me like a blade.

“Why’d you leave?” his voice came, low, behind me.

I spun. He stood by the trees, hands in his pockets, dark eyes burning. Watching me like a predator watching prey.

“I’m not letting you run again,” he said.

“I’m not running,” I lied, breath unsteady.

“You ran last night. You ran at breakfast. You’re running now.” He started forward, slow. “You can’t handle this, Sienna. But you started it. Now you finish it.”

“I didn’t start anything,” I snapped. “You came into my life and wrecked it. Don’t twist this on me.”

“Don’t twist it?” His voice rose, hard. “Who touched me first? Who climbed into my bed? Who begged me not to stop?”

My throat went tight. “That’s not fair.”

“Life’s not fair,” he shot back.

He was close now. Too close. The pine scent of him filled my head, made my knees weak.

“I am scared, Jaxon. You don’t get it. What did you think would happen? That we’d just sneak around, pretend nothing’s wrong, and live happily ever after?”

“Yes.” His answer was steel. “Because that…us…last night…that was real. The most real thing I’ve ever had. And I’ll be damned if I let you throw it away.”

He was inches away, and my traitorous eyes dropped to his mouth.

“I can’t,” I whispered, hating the way my body betrayed me, heat pooling low, memories of his hands all over me flashing.

His fingers caught my chin, forcing my gaze up. His eyes locked mine, fierce, unrelenting.

“Yes, you can,” he growled. “Stop fighting me. Stop fighting us.”

I trembled as his lips brushed my ear, his breath hot.

“I know a place,” he whispered. “No one will find us. No pretending. Just you and me.”

“Where?” The word left me before I could stop it.

“The lake house,” he said, voice dark with promise. “An hour away. Empty. Ours.”

My stomach twisted. Every alarm screamed no. But my body screamed yes.

“I can’t,” I said, weak, trembling.

His grip tightened. “Then tell me no. Look me in the eye and tell me you don’t want me. That you don’t want to go. Say it and I’ll walk away for good.”

I opened my mouth. Nothing came out. Because it wasn’t true.

Silence hung heavy between us, his lips so close, my body shaking with need.

And then…

“Sienna? Jaxon?”

We both froze.

Kendra’s voice. Sweet, curious. Deadly.

She stood on the lawn, smile painted innocent, but her eyes lingered. Too sharp. Too knowing.

“What are you two doing out here?”

My stomach crashed to the ground. She’d heard. She’d seen. She knew.

And if she opened her mouth, everything was over.

Sienna

It didn’t start with love. Or even lust.

It started with hate.

I hated him.

The day Dad brought him home, the hallway felt too small. Like even the walls were holding their breath.

Dad was grinning like he’d just closed some big business deal. His arm was wrapped around Lena, his shiny new wife. She wore a soft cream sweater, pearl earrings, hair in a neat bun that looked like it had its own security system. Perfect. Fake.

And then there was him.

Jaxon Carter. Nineteen. Taller than I expected. Lean muscle under a black T-shirt. Not smiling. Not frowning. Just looking at me in this slow, measuring way. Like he was deciding if I was a threat… or prey.

“Sienna, this is Jaxon,” Dad said, all cheerful, like he was introducing me to some distant cousin I should be thrilled about.

I gave the smallest nod possible. “Hey.”

He nodded back. Not one word. His eyes flicked down at my ripped jeans, the band tee I’d slept in, then back up to my face. His gaze had weight.

Lena’s smile was too sweet. “We’re all going to get along just fine.”

Sure. And hell was about to freeze over.

The new “family rules” appeared that night, taped to the fridge. No slamming doors. Chores split evenly. Dinner together every night at seven.

I stared at the list. “Looks like prison.”

Dad’s smile faltered. “It’s about respect, Sienna.”

Jaxon leaned against the counter, arms crossed. “Don’t worry. I’ll stay out of your way.”

His tone said the opposite.

It started small. His towel left on the bathroom floor. My trash mysteriously “forgotten” on the curb. The remote hidden under his thigh with a smug look when I searched.

Every night felt like a standoff.

Then came Tuesday.

The shower steam was still clinging to my skin when I stepped into the hallway, wrapped in a towel, hair dripping down my back. I was halfway to my room when his door opened.

He stepped out. Shirtless.

I froze.

He didn’t. He walked toward me like the hallway wasn’t narrow, like my bare shoulders and wet hair weren’t something to avoid.

“Is there a problem?” His voice was low.

I shook my head. “No.”

His gaze moved over me, slow enough to trip my pulse. “You sure?”

“Yes.” My voice cracked.

He stopped close enough that I could smell his soap. Clean, sharp, but darker underneath.

His eyes locked on mine. “Good.”

For a second, I thought he might touch me. His hand twitched like he almost would. Then he stepped back, brushed past, and disappeared into the bathroom.

I didn’t move until the door clicked shut.

After that, everything felt different.

We weren’t just avoiding each other. We were circling. Testing.

The next few days were filled with little jabs; a brush of his fingers when he passed the salt, a smirk when he caught me staring.

I told myself it was still hate. That was safer.

Then one morning,

I was halfway down the hall when Jaxon stepped out of his room, towel slung over his shoulder, toothbrush in hand. His eyes locked on the bathroom door, the same one I was already reaching for.

“Move, Blake.” His voice was flat, casual, like it wasn’t even a question.

“I was here first.” I planted my hand on the knob.

He tilted his head, smirking like it was funny. “Doesn’t look like it from here.”

“Don’t be a jerk.”

“Don’t hog the bathroom.” He leaned closer, close enough that I could smell his soap from last night’s shower. “I take five minutes. You take… forever.”

“That’s because I actually wash my hair, caveman.”

His smile sharpened. “You’d be surprised what people like about me not washing my hair.”

I rolled my eyes, gripping the doorknob tighter. “Ugh, you’re disgusting.”

He leaned his shoulder against the frame, blocking me without even trying. “Ladies first?” he said, pretending to be polite.

For a second, I almost believed him until he added, “Oh wait. That doesn’t apply to you.”

My jaw dropped. “Excuse me?”

“Bathroom’s mine. Step aside.”

“Over my dead body.”

We shoved at the same time. I was trying to twist the knob, him blocking me with his stupid arm. Our shoulders collided, our voices overlapping.

“Back off, Jaxon!”

“You back off!”

“I’m not moving!”

“Neither am I!”

The sound of footsteps on the stairs cut through our bickering.

“What’s going on here?” Dad’s voice, sharp and tired.

Lena appeared behind him, holding her coffee like it was a shield. She glanced at us. I was gripping the knob like it was life or death, Jaxon smirking like he’d already won.

Dad pinched the bridge of his nose. “Seriously? Fighting over the bathroom? You’re not five.”

“Tell her to move,” Jaxon said smoothly.

“Tell him to quit being a controlling psycho,” I snapped.

Lena sighed, sipping her coffee. “Jaxon, let Sienna go first. She has school. You can wait.”

His jaw flexed, but he stepped back. Slowly. Deliberately. Like he wanted me to know this wasn’t over.

“Fine, princess. Enjoy your mirror time.”

I shoved past him, heart hammering louder than it should for a stupid bathroom fight.

Because underneath the bickering, under Dad’s frustrated sigh and Lena’s forced smile, I knew the truth.

It wasn’t just about the bathroom.

It was about winning.

And neither of us wanted to lose.

Then came Kendra’s party.

The music was too loud. The beer was warm. I regretted saying yes before the night even started.

“Truth or dare,” Kendra announced, eyes glassy.

“Dare,” I said, because I’d rather eat glass than spill truths in front of these people.

She grinned like a wolf. “I dare you to kiss your stepbrother.”

The room went quiet.

I didn’t turn my head. I already knew where he was. Leaning against the wall, beer in hand, eyes fixed on me like he’d been waiting.

“No,” I said.

Kendra pouted. “Chicken?”

My pride flared. “Fine.”

I stood. Every step across that room felt like a choice I couldn’t undo.

When I stopped in front of him, his mouth curved. “It’s just a game, Blake.”

I leaned in, planning a quick, meaningless kiss. But the moment my lips brushed his, his hand came up, fingers curling around the back of my neck.

It wasn’t quick. It wasn’t meaningless.

His mouth moved against mine with careful hunger, like he’d thought about this for a long time. My hands curled into his shirt before I realized it.

When he finally pulled back, his forehead rested against mine. His breath was warm. “You crossed the line,” he whispered.

I didn’t trust my voice to answer.

Headlights flashed through the window. Someone shouted, “Party’s over!”

Jaxon’s hand slid away, slow. He stepped back. “We’ll talk later.”

I didn’t get the chance to ask what he meant.

Later came faster than I thought.

That night, the house was too quiet. I was brushing my teeth when his door opened.

“Come here.”

I almost laughed. “No.”

He leaned on the doorframe, arms crossed. “Scared?”

“Of you? Please.”

“Then prove it.”

My heart was a drum. Still, I walked toward him.

He stepped back into his room. I followed.

The air inside felt warmer. He closed the door with a soft click.

“You’ve been looking at me,” he said.

“You’ve been imagining things.”

His smile was slow, dangerous. “Seems like you want more than that kiss.”

“Seems like you want more than that kiss.”

Heat rushed up my neck. “You’re delusional.”

“Am I?” He moved closer, every step shrinking the air between us. “Because the way you walked in here doesn’t look like hate to me.”

I lifted my chin, trying to sound steady. “I came in because you dared me.”

“No, Blake. You came in because you wanted to.” His voice was low, threaded with something I couldn’t name. “And now you don’t know what to do with yourself.”

My pulse was a hammer. I stepped back, but his hand brushed my wrist lightly and deliberately. Not enough to trap me. Just enough to remind me he could.

“You should open the door,” I whispered.

“Say you don’t want this, and I will.” His gaze pinned me. “But if you lie, I’ll know.”

Silence stretched too long. My throat was dry. I couldn’t say the words, not without choking on them.

His smile curved, slow and knowing. He leaned down just close enough that his breath skimmed my jaw. “Thought so.”

My chest ached from how hard I was breathing. I hated that he was right. Hated that part of me wanted to lean closer instead of pulling away.

“This is wrong,” I said finally.

“Maybe.” His lips almost brushed my ear. “But wrong’s never stopped you before, has it?”

I stiffened, my pride sparking. “You don’t know me.”

“Not yet.” His voice was a promise.

I should’ve shoved him, stormed out, slammed the door. Instead, I just stood there, body betraying me with every nervous inhale.

And then…

“Sienna!”

Lena’s voice, sharp, carrying up the stairs.

We both froze.

“Dinner’s ready!”

Jaxon’s eyes stayed locked on mine, unblinking. “Go,” he said, his tone rough.

I exhaled, shaky, stepping back toward the door.

His smirk returned, faint but dangerous. “We’ll finish this later.”

I didn’t answer. Couldn’t. My legs carried me out into the hallway, but my head was still inside that room, spinning, my heart still beating like it belonged to him.