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Ruin Me, Brother
Ruin Me, Brother
Author: Moonbunnie

1

Author: Moonbunnie
last update Last Updated: 2025-08-08 21:35:59

Celeste

I never wanted a new family.

Especially not one with glass walls, a private chef, and a stepbrother who looked like sin wrapped in designer clothes.

The Monroe mansion sat on top of the hills like a crown. Its white walls sparkled under the perfect blue sky. I stared at it from the back seat of the fancy car, holding my old, worn suitcase tight against my chest.

It was the only thing I had left from my old life. The only thing that still felt like mine.

Mom sat beside me, smiling so wide I thought her face might crack.

“Don’t look like you’re going to a funeral, Celeste,” she said, checking her makeup in a small mirror.

“Don’t act like we just won the lottery,” I shot back.

She gave me that same disappointed look she’d perfected my whole life, but said nothing. She was too happy, too caught up in her fairy tale ending.

And why wouldn’t she be?

She’d married Richard Monroe. The man who owned half of California. The man with billions in the bank and a face that still turned heads, even with gray hair. Her dream had come true. Poor girl marries rich man. Rags to riches. Cinderella story.

For me? It felt more like a nightmare dressed up in designer clothes.

The car came to a stop, and my stomach twisted into knots.

The front door opened before we even reached it. A woman in a perfect black and white uniform stood there, smiling like she’d been practicing in a mirror.

“Welcome home, Mrs. Monroe,” she said to my mother. Then she turned to me. “Miss Morgan. Mr. Richard is waiting inside for you.”

“Darling!” a deep, smooth voice called from inside.

Richard Monroe walked down the steps like a king coming to greet his subjects. He probably closed million-dollar deals with that same confident smile and a sharp knife hidden behind his back.

He kissed my mother, and she giggled like a teenager. The sound made me cringe, but I couldn’t look away as I stood there, clutching my suitcase tightly.

“Celeste,” Richard stated, turning to me. His smile was warm. “You look beautiful, sweetheart.”

“Thank you, sir,” I replied quietly, staring at the floor.

“Sir?” He laughed like I’d told a joke. “We’re family now. Call me Dad.”

My stomach twisted. The word Dad didn’t belong to him.

This man? He was just the guy who married my mother for reasons I didn’t want to think about.

“Call him Dad, Celeste,” Mom said sharply. “Don’t be rude.”

Rude. She thought I was being rude. This woman, who never cared about my feelings before, never asked if I wanted to move, if I wanted a new family, if I wanted any of this.

“Dad,” I finally said.

“Good girl,” Richard muttered, looking pleased with himself. “Jace will be home soon. But first, let’s get you settled. Maria, show them to their rooms.”

Jace.

My new stepbrother.

I hadn’t met him yet, only saw one picture on Mom’s phone when she was showing off her new life to her friends. He was tall, with broad shoulders, dark messy hair, and a tattoo peeking out from his collar.

He looked like the kind of boy mothers warned their daughters about.

And now he was my brother.

The word made my skin crawl.

The inside of the mansion was even more overwhelming.

Shiny marble floors that reflected everything like mirrors. Crystal chandeliers hanging from impossibly high ceilings. A staircase so wide and grand that an entire wedding party could walk down it side by side.

Everything screamed money, power, and status.

Nothing felt like home.

I followed Mom as the maid took us upstairs. “Your rooms are on the third floor,” Maria explained. “The family wing.”

Family wing. It felt like we were truly a family, like we belonged here.

She opened a set of double doors to reveal my new bedroom.

I stopped breathing.

It was huge. Bigger than our entire old apartment. Cream-colored walls with gold decorations. A bed so big I could probably fit five people on it. A chandelier hanging from the ceiling. Windows from floor to ceiling with a view of the whole city.

And a closet. A whole room just for clothes. It was bigger than my old bedroom.

I dropped my suitcase on the floor. The sound echoed in the space.

“So this is where you dump me,” I hissed.

“Celeste, please,” Mom sighed. “Can you just try? For me? Just this once?”

I stared at her, really taking in her appearance. She was dressed in a designer dress, adorned with expensive jewelry. Her hair was styled impeccably, and her makeup was flawless.

She looked like a stranger.

“This is the best life I could give us,” she responded softly, like she was trying to convince herself. “I did this for you, for us. Can’t you see that?”

I wanted to scream and tell her that I never asked for this. I was happy in our small apartment and didn’t need fancy rooms, designer clothes, or a stepfather with billions of dollars.

I just needed her to care about me. To ask what I wanted. To see me as more than just a burden she had to drag into her new, perfect life.

But I didn’t say any of that.

“Why do you even care what I think?” I asked instead, my voice shaking. “You never cared before. Not once. You never asked if I wanted to move. If I wanted a new family. If I wanted any of this.”

“Everything I’m doing is for you,” she said, and she actually looked hurt. Like she believed her own lies.

“Sure it is.” I laughed, even though nothing was funny. “Keep telling yourself that, Mom. Maybe one day you’ll believe it.”

Her expression turned stern. “This is your room. I need to go find Richard.” She uttered his name like it was something precious. “Unpack, make yourself at home, and try to be grateful.”

She walked out without another word. The door closed behind her with a soft click.

I was alone.

I fell back onto the huge bed and stared at the ceiling. The silence was thick and heavy, pressing down on me like a weight.

I was on the verge of tears, but my anger was too intense to let them fall.

I hadn’t even started unpacking when I heard heavy footsteps in the hallway.

Then my door opened.

No knock, no warning, just opened.

“Are you kidding me?” I snapped, sitting up fast. “Do rich people not know how to—”

The words died in my throat.

He filled the doorway like he owned it, and everything beyond it.

Six feet of solid muscle wrapped in a tight black shirt that showed every line of his body. Gray sweatpants hanging low on his hips. Messy dark hair that looked like he’d just woken up. Sharp cheekbones that could cut glass. Full lips that curved into a cruel smile.

And eyes. Dark, dangerous eyes that looked at me like I was something he wanted to destroy.

Jace Monroe.

My new stepbrother.

His eyes lingered on my body, moving slowly and hungrily, as if he was savoring every moment. It felt like he was committing every detail to memory.

A rush of heat flooded through me, causing my skin to tingle and my heart to race.

I hated it. Hated the way my body reacted to him. Hated that some part of me recognized something in him.

“You’re in my room," he announced, his voice deep and rough, like gravel and honey mixed together.

I blinked, trying to find my voice. “Excuse me?”

He stepped inside and shut the door behind him. The click of the lock sounded impossibly loud.

“This used to be my room,” he muttered, walking closer. Each step was slow and deliberate. Like a predator stalking prey. “Until your gold-digging mother moved in and took over my house.”

Fire shot up my spine. “Watch your mouth,” I snapped, standing up.

“Or what?" He stepped closer, so close that I could see the green flecks in his dark eyes. I could even smell his cologne, something clean, dark, and expensive that made my head spin. “You’ll run crying to your mommy?”

“I’ll kick your ass,” I said, lifting my chin.

He laughed; the sound was cruel, cold, and joyless. “You? You’re barely five feet tall. I could break you with one hand.”

“Size doesn’t matter when you know where to hit,” I shot back.

Something dangerous flashed in his eyes. Something that made my stomach flip.

“This is my house," he said softly. “My room, my life. You and your mother? You’re nothing but parasites who moved in and ruined everything.”

“Oh, I’m sorry,” I said, my voice dripping with fake sweetness. “Sorry for the inconvenience, Your Royal Highness. I didn’t realize you were such a spoiled prince who throws tantrums when things don’t go his way.”

His jaw tightened. “Don’t talk to me like we’re equals.”

“Don’t talk to me like I begged to be here!” I shouted, all my anger spilling out. “You think I wanted this? You think I wanted to move into some stranger’s mansion and pretend to be part of his perfect family? I didn’t ask for any of this!”

He stared at me. Then he moved closer. So close I had to tilt my head back to look at him.

“Here’s a rule for you, little stepsister," he murmured in a low, almost whisper-like voice. “Stay the hell away from me. Don’t talk to me. Don’t look at me. Pretend I don’t exist. If you get in my way or try to play happy family with me, I will make your life a living hell.”

I should have been scared, backed down, and apologized. But I didn’t.

“You came into my room,” I said, my voice steady even though my heart was pounding. “You approached me. So maybe you should follow your own advice.”

His eyes flashed. “I’ll walk into whatever room I damn well please. This is my house.”

“Then next time,” I snapped, meeting his stare head-on, “knock first. Or I’ll scream loud enough to wake the whole neighborhood.”

His lips curved into a cruel smile. “Scream all you want, bitch,” he said, leaning down until his lips were inches from my ear. “Nobody’s going to save you here. Nobody cares.”

“What’s that supposed to mean?”

He pulled back and looked at me again. This time with pure disgust.

“You’re not even pretty,” he said slowly. Each word was meant to hurt. “So flat. So boring. So plain. I don’t know what game you and your mother are playing, but it won’t work on me. I see right through you.”

The words stabbed into me like knives.

He looked at me like I was nothing. Like I was dirt on his expensive shoes. Like, I didn’t deserve to breathe the same air as him.

And for one horrible second, I almost believed him.

Before I could say anything—before I could think of a comeback or defend myself—he turned and walked out.

The door slammed so hard the windows shook. Picture frames on the walls rattled.

I stood there, frozen, my hands shaking, heart racing, and body feeling like it was on fire.

What the hell just happened?

My skin was still buzzing from how close he’d been. From the heat of his body. From the way he’d looked at me—like he couldn’t decide whether to kiss me or destroy me.

This wasn’t just tension between step-siblings.

This was war. And I wasn’t planning to lose.

Moonbunnie

He was off-limits. I should hate myself for the way my heart raced whenever he looked at me, but I couldn’t. I wanted him. I wanted him so badly that I’d do anything to keep that desire buried… until it became impossible. Welcome to my first forbidden stepsister-and-stepbrother romance. I hope you’ll join me on this journey—comment, like, and share what excites you. Your support means the world to me. Thank you!

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Latest chapter

  • Ruin Me, Brother   85

    Jace“Welcome home, son,” my father greeted, and I nodded.The maids served dinner. I went upstairs to change clothes, then came back down to eat. I was starving.I was halfway through my meal when Celeste’s mother approached her.“I need to see you after dinner,” she said.“Okay, Mother,” Celeste replied quietly.“She’ll be coming with me,” I murmured, standing up. “As my personal assistant, there are files she needs to handle.”“Why?” Father asked. “Can’t those files wait until tomorrow?”“No, Father,” I responded. “I have an early meeting tomorrow. The files need to be organized tonight.”“Son—”“Are you not the one who asked me to teach her how things work in the company?”“You’re right,” her mother interrupted, smiling widely. “Celeste has so much to learn.”I didn’t need anyone to tell me what she was thinking. She probably believed Celeste would have access to my laptop and could steal whatever she wanted.“Let them work, Richard,” she added. “I’ll talk to Celeste tomorrow. Let

  • Ruin Me, Brother   84

    Jace“So, brother,” Celeste asked as soon as we got in the car. “Can you tell me what was wrong earlier?” I ignored her and started driving.“Brother,” she called again, but I kept my eyes on the road.“Jace.”“What?” I finally snapped.“I’m only worried about you,” she spoke softly. “Can you tell me what happened?”“It’s nothing,” I replied. “You don’t need to worry.”Silence filled the car after that. I should have enjoyed the peace, but I couldn’t. My mind kept replaying what I’d seen. Aria and Damon kissing. Their hands intertwined. The lies they’d told me.I started humming under my breath, trying to push the images away. But they wouldn’t leave.“Are you sure you are okay, Jace?”I slammed on the brakes and pulled over to the side of the road. I turned to face her.“You have a problem, Celeste,” I said, my voice rising. “What is your problem?”“I’m only worried—”“Why are you so worried about me?” I shot back at her. “You… everyone, I hate all of you.”“You hate me?” she gasped,

  • Ruin Me, Brother   83

    Jace“I’m fine,” I buzzed, my voice rough from crying. “Go do what you came here to do.”“You don’t look fine, brother,” she said softly, taking another step closer. “You were crying. What happened?”“Stop calling me that,” I snapped. “I hate it when you call me brother.”“Jace,” she tried again. “Please tell me what happened.”“It’s none of your business.”“Maybe not,” she admitted quietly. “But I still care about you.”What could I do with this stubborn girl? “I’m fine. You can leave now.”But she just stood there, watching me like she could read my thoughts, until Mina walked back in.“What are you doing just standing there?” Mina yelled at her suddenly. Why was she screaming at C

  • Ruin Me, Brother   82

    JaceI couldn’t sleep, no matter how hard I tried. Every time I closed my eyes, I saw them - Aria and Damon - together, kissing.I kept scrolling through our photos on my phone. Pictures of Aria smiling at me. Pictures of us being happy. All lies.How could she do this to me? Why? What did I do wrong that made her betray me with my best friend?This betrayal felt like a knife twisting in my chest. First my father. Now her.I stared at my phone screen, my jaw clenched. Everyone who betrayed me would be punished. I’d start with my father. Then her.I got out of bed, stripped off my clothes, and headed to the bathroom. When I looked at myself in the mirror, I barely recognized the man staring back.Dark circles under my eyes. Dull skin. I looked exhausted and broken.I turned on the shower and let the hot water run over me, but it didn’t wash away the pain.After bathing, I dried myself, applied some cream, and put on a dark suit. I needed to look strong even if I felt hollow inside.I w

  • Ruin Me, Brother   81

    Jace“Sir,” Mina called, trying to get my attention.But I couldn’t stop staring at Celeste. She was sitting at the desk outside my office, working on something on her laptop. How could I get rid of her? How could I make her leave?“Sir,” Mina called again.“Yes,” I finally replied, tearing my eyes away to look at her. “What is it?”“Sir, about the new girl...” Mina paused, glancing at Celeste through the glass. “What exactly is her position?”“She’s nobody,” I said coldly. “Just treat her like she doesn’t exist.”“But you said she’s your personal assistant,” Mina said carefully.“Did I formally introduce her as one to you?” I snapped. “Do your work, Mina, and stop questioning me.”“Sir, I just thought—”“Shut up.” I slammed my fist on the desk. “Enough.”“Okay, sir.” She looked startled but nodded quickly. She was about to leave when I called her back.“Since she’s taken your desk, get another one for yourself,” I muttered. “And she’s in charge of all your duties until she leaves.”“

  • Ruin Me, Brother   80

    Celeste Then she started kicking me. My stomach, my ribs, and my back. I curled up, trying to protect myself, sobbing uncontrollably. “I’ll do better tomorrow, I promise!” I cried. The pain was unbearable. If she didn’t stop, she might kill me. “I promise you, Mother! Please!” She finally stopped and bent down. She pushed my hair away from my face and whispered coldly, “You better try harder tomorrow. Or else I’ll make you suffer even more.” With that, she left my room, slamming the door behind her. I lay there on the floor, crying silently. Everything hurt. My face. My body. My heart. I wished I could run away, but I couldn’t. She was watching me, observing all my moves. The next morning came too quickly. I hadn’t slept at all. The pain kept me awake all night. Every movement hurt. I forced myself to get up and walk to the bathroom. When I looked in the mirror, my heart sank. My face was red and swollen, with bruises covering my arms and body. My scalp throbbed from where sh

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