All Chapters of Brother-in-Law, I’m Your Dirty Secret: Chapter 21 - Chapter 30

92 Chapters

CHAPTER 14 PART 1

Jia's POVMy heart was hammering against my ribs as I walked up the stairs toward Marcus's study. Every worst case scenario was already playing out inside my head like a horror movie on repeat. Liam found out about us. Liam saw something. Liam knows. The words bounced around my skull so loudly I could barely hear my own footsteps on the carpet.I pushed the study door open without knocking. Marcus was standing behind his desk with both hands pressed flat against the dark wood surface. His sleeves were rolled up. His tie was loosened. The lamp on his desk cast a warm golden glow across his sharp jaw and the tension lines carved into his forehead."Close the door," he said quietly.I closed it. The soft click of the latch echoed in the silent room."What did he find out?" I asked immediately, my voice tight. "Tell me right now, Marcus. How bad is it?""Calm down." He straightened up and crossed his arms. "He has not found out about us. Not directly."The relief hit me so hard my knees a

Last Updated : 2026-08-28

CHAPTER 14 PART 2

JIA'S POVHe looked away from me. His hand gripped the edge of the desk behind him. "I mean that I do not just think about touching you anymore, Jia.I think about you when you are not in the room. I listen for your footsteps in the hallway. I check whether your car is in the driveway before I come home.That is not just physical. That is something else entirely. And that something else is what makes this dangerous."My eyes burned. Not from sadness. From the overwhelming feeling of being seen by someone who actually cared enough to look. No man had ever spoken to me like this. Not Liam. Not anyone. Marcus Collins, the coldest and most powerful man in the country, was standing in front of me admitting that he could not stop thinking about me."I look forward to seeing you every day," I admitted, my voice barely holding steady. "Every single morning I come downstairs hoping you are already at the table. And I know that is not right. I know what we are doing is wrong. But I cannot stop,

Last Updated : 2026-08-28

CHAPTER 15 PART 1

Jia's POVMy brain was working faster than my mouth. Liam was standing in that doorway with suspicion written all over his face and I had exactly two seconds to make this look normal."I was looking for the medical liability report Marcus mentioned at dinner last week," I said, holding up the random book in my hand like it was proof. "He said it was somewhere on these shelves. I wanted to review it before my meeting with the hospital board tomorrow."My voice came out smoother than I expected. Calm. Casual. Like I had rehearsed the lie a hundred times even though I had pulled it straight out of thin air.Marcus did not even look up from his desk. He flipped a page in his leather folder with the laziness of a man who had been doing paperwork for hours. "I told her to check the third shelf. She has been in here for less than five minutes, Liam. Did you need something?"The delivery was so perfect it almost scared me. No hesitation. No nervousness. Just cold, bored authority. Like his yo

Last Updated : 2026-08-28

CHAPTER 15 PART 2

JIA'S POVThat afternoon, Marcus arrived at the hospital for a quarterly board meeting. I saw him walk through the main lobby in his dark suit, surrounded by two assistants carrying folders. Our eyes met for a fraction of a second. Then we both looked away. Strangers again.But twenty minutes later, I was standing outside my office talking to Nathan about a patient case when I felt it. That heavy, burning stare that I could recognize with my eyes closed. I glanced past Nathan's shoulder and saw Marcus at the far end of the corridor.He was holding a folder, pretending to read. But his eyes were not on the paper. They were locked on Nathan's face with the sharpness of a blade being pressed slowly against skin.Nathan said something funny. I laughed. Marcus's folder twitched in his grip.I filed that reaction away for later.After Nathan excused himself, I found Marcus alone in the empty corridor near the administrative wing. He was standing by the water fountain, adjusting his cufflink

Last Updated : 2026-08-28

CHAPTER 16 PART 1

Mia's POVSomething was seriously wrong with Jia and it was making me lose my mind.I sat at the breakfast table this morning and watched Liam do everything he usually does. He kissed my forehead in front of her. He called me beautiful. He talked about the expensive dinner we had last night and how amazing the wine tasted. He even put his hand on my thigh under the table and squeezed it while looking directly at her face.Nothing. Absolutely nothing.Jia sat across from us chewing her toast like she was watching paint dry. She did not blink. She did not flinch. She did not even glance at Liam's hand on my leg. She just wiped her mouth, picked up her coffee, and said she had surgeries to prepare for.Three months ago, that woman would have been drowning in tears by the second sentence. I used to watch her eyes fill up with water every single time Liam said my name in front of her. I used to see her hands shake under the table. I used to hear her crying through the walls at night. It wa

Last Updated : 2026-08-28

CHAPTER 16 PART 2

"You are seriously telling me to focus on Jack?" My voice came out sharper than I intended. "You are the one who keeps calling me. You are the one who brings me to your bed three times a week. You are the one who kisses me in front of your own wife. And now you want to throw Jack in my face?""I am just saying you cannot blame Marcus for not paying attention to you when you are not even his responsibility.""Jack does not even call me anymore, Liam." I crossed my arms over my chest. "He has not looked at me in six months. He left the city without saying goodbye. The only person in this entire family who has ever actually looked at me is you. So do not sit there and tell me to go running back to a man who does not want me."Liam said nothing. He just stared at the ceiling with that annoyed expression he wore whenever a conversation stopped being fun for him.I lay back down and pulled the blanket over my chest. My mind was spinning too fast to sleep. The anger was chewing through me li

Last Updated : 2026-08-28

CHAPTER 17 PART 1

Jia's POVSomething was off with Mia and I could feel it in my bones.She smiled at me this morning. Not her usual sharp, mocking smile that dripped with venom and fake sweetness. A real, warm, friendly smile. She even offered to pour me a cup of coffee at the breakfast table. She asked me how my work was going at the hospital. She complimented my earrings.Mia never complimented my earrings. Mia never complimented anything about me unless she was setting up an insult right behind it."Those little studs are so cute on you, Jia," Mia had said brightly, stirring sugar into her tea. "Simple things suit you best. Not everyone can pull off expensive jewelry, but you make basic look charming."There it was. The buried blade wrapped in silk. But even the insult felt different this time. Softer. More calculated. Like she was playing a longer game instead of going for the quick kill.I did not trust it. Not even a little bit. Kindness from Mia was like a mouse trap covered in chocolate. The s

Last Updated : 2026-08-28

CHAPTER 17 PART 2

JIA'S POV"I am not upset." I kept my back to him, running my fingers along the spines of books I had no intention of reading. "Why would I be upset?""Because Mia sat next to me at dinner and touched my arm and you have been clenching your jaw for the last forty five minutes."I turned around. He was leaning against the closed door with his arms crossed. His sleeves were rolled up. His dark eyes were watching me with that quiet intensity that always made my pulse do something stupid."She is your wife, Marcus." The words tasted bitter in my mouth. "She has every right to sit next to you and touch your arm and call your wine special. I have no right to be jealous about any of it.""You are jealous anyway.""Of course I am jealous." The honesty came out faster than I could stop it. "She gets to sit next to you in front of everyone. She gets to use your last name. She gets to sleep in the same house as you without sneaking through hallways and checking for footsteps. She has everything

Last Updated : 2026-08-28

CHAPTER 18 PART 1

Marcus's POVI did not know exactly how much Mia knew. That was the part that kept me awake at night. If she had seen something small, a look, a moment, a door closing too quickly, then she was dangerous but manageable. If she had seen something real, then every single plan I had been building in silence was about to collapse like a house made of wet paper."We need to assume she is watching us," I told Jia, standing in the library with my voice barely above a whisper. "Every move. Every look. Every second we spend in the same room. From now on, we operate as if Mia has eyes on us at all times."Jia's face was pale. I could see the fear sitting behind her eyes even though she was trying hard to hide it from me. She nodded slowly but did not speak."I will handle this," I said firmly. "But you need to trust me. Can you do that?""I trust you," she whispered. "But I am scared, Marcus. Not for me. For us."That word nearly broke my chest open. Us. She said it so naturally, like we were s

Last Updated : 2026-08-28

CHAPTER 18 PART 2

MARCUS'S POVThe truth was, I knew everything. I knew about Mia in his bed. I knew about the hotel nights and the secret phone calls and the disgusting way he paraded her in front of Jia. I knew all of it. But I was going to keep pretending I was the only person in this house who did not see what was happening right under my roof. Because the moment I revealed what I knew, every card would be on the table. And I was not ready to play my hand yet.That evening, I found Jia in the garden. She was sitting on the stone bench near the fountain, staring at the water with her arms wrapped around herself. The setting sun painted her face in warm gold and soft orange. She looked beautiful. She also looked terrified.I sat down beside her. Close enough to talk. Far enough to look innocent."What if Mia exposes us?" Jia asked quietly, not looking at me. Her voice was thin and fragile. "What happens then? To you? To me? To everything?""If the secret comes out, I will deal with the consequences."

Last Updated : 2026-08-28

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