My Alpha Got His Brother’s Mate Pregnant

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I walked out of the examination room, clutching my infertility report. I saw my Alpha pinning another woman against a hospital bed, caressing her swollen belly. His child.

That woman was his brother's mate.

He once said I was his only Luna in this lifetime.

But the next second, he was choking me by the throat, forcing me to my knees to apologize. All for her sake.

That's when I finally understood: the cruelest betrayal isn't a change of heart. It's his gamble that I would never leave.

The smell of disinfectant in the corridor stung my nose. But the cold report in my hand was even harder to bear.

"Extremely low conception probability."

I, Amelia, Luna of the Ironclaw Pack, had been sentenced to death once again.

To bear an heir for my husband, Alpha Leo, I had swallowed countless bitter medicines over the past three years. Enduring one painful attempt after another.

I took a deep breath, stuffed the report into my bag, and prepared to leave.

Just as I reached the VIP ward, I found the door slightly ajar. I caught Leo's familiar scent of pine, but now it was tangled with another's. A cloying rose fragrance that made my stomach turn.

That was Grace's scent.

The mate of Leo's late brother, and the former Luna of the Ironclaw Pack.

I froze in place. Through the gap in the door, the scene before me made my blood run cold.

Leo had Grace pinned against the hospital bed, his large hand possessively stroking her prominently swollen pregnant belly.

He lowered his head, kissing her neck with fervor, drawing breathy moans from Grace.

"Leo... be gentle."

Grace purred coquettishly as she wrapped her arms around his neck and whispered in his ear. I could clearly see the triumphant gleam in her eyes.

"If Amelia saw us like this, she'd definitely be jealous. She's still desperately hoping to conceive your heir. Aren't you afraid she'll cause trouble?"

Leo let out a cold laugh, his tone dripping with contempt I'd never heard before.

He nuzzled Grace's neck with his nose.

"She doesn't need to know. And even if she did, so what? She's a useless Luna. I've given her more than enough time. If she dares to cause problems for you and our pup, I can reject her anytime and make you my Luna, fair and square."

My heart felt as though an invisible claw had crushed it. My wolf cried out in anguish.

This was the man who had once knelt before me, vowing to love me forever?

I touched my flat abdomen, my heart aching.

Images from these past months flooded my mind unbidden. All the humiliation.

Back then, the Council of Elders had pressured me relentlessly, citing "the pack needs an heir."

And when Leo decided to hold a marking ceremony with Grace, he had held me tight, his eyes red.

"Amelia, I only love you. Marking Grace is just to satisfy the Council of Elders, just to produce an heir for the pack. You'll always be my only Luna."

I had believed him.

From that point on, Leo frequently stayed overnight at Grace's place, barely spending any time with me.

Whenever Grace used the mind-link, he would drop everything and rush to her side.

He even brought her to pack gatherings, as if Grace were his Luna.

I had complained to him many times.

But each time, he gave me the same excuse. Everything he did was to ensure Grace bore the pack's heir quickly, nothing more.

I kept telling myself he was just fulfilling his duty as an Alpha.

I firmly believed our mate bond remained solid.

Now, not only had he successfully gotten Grace pregnant, he was even ready to strip me of my Luna status at any moment.

My grief receded, replaced by complete clarity.

I, Amelia, was no one's doormat.

I pulled out my phone and dialed that familiar number.

"Father."

I took a deep breath.

My father's low, authoritative voice came through.

"My princess, you've finally contacted me. Has that idiot from the Ironclaw Pack been mistreating you?"

"You were right. He doesn't deserve my devotion. I want to break the mate bond with Leo."

I stared coldly at the two people still entangled in the hospital room.

"Dad, I want to come home."

"Good. The Princess of the Silver Crescent Pack doesn't need to waste time on trash. I'll send our finest guards to bring you back."

I hung up the phone.

Leo soon followed the pack doctor to another office to review ultrasound images.

Grace, using the excuse of needing the restroom, emerged from the ward.

After they disappeared down the corridor, she walked straight up to me, her pitiful facade instantly vanishing.

"Amelia, you don't need to hide anymore. Did you enjoy the show?"

Grace crossed her arms and looked down at me with the arrogance of a victor.

I stared at her expressionlessly, saying nothing.

My silence seemed to infuriate her. She suddenly snatched the follow-up report from my hand.

"What a useless Luna!"

Grace glanced at the report and laughed mockingly.

"I knew it! An Omega like you, picked up by Leo from some rogue pack, doesn't deserve to carry noble Alpha blood! You'll never bear an heir in this lifetime!"

She spoke while flaunting her pregnant belly with exaggerated caresses.

"See this? This is Leo's true offspring. Every night he whispers in my ear about how much he loves me, how much he's looking forward to this pup's birth. And you? You're just a Luna in title only!"

"Shut up."

I glared at her coldly, my wolf beginning to stir from her provocation.

My claws itched to tear her apart.

"What? Did I touch a nerve?"

Grace's mocking smile grew wider.

"Amelia, if you know what's good for you, get out of the Pack now. Stop clinging to the Luna position and embarrassing yourself. You barren-"

Smack!

I'd had enough. I raised my hand and slapped her hard across the face.

The crisp sound echoed through the corridor. Grace's head snapped to the side, her cheek instantly swelling red.

"How dare you hit me, you lowly she-wolf?!"

Grace shrieked. Then her eyes rolled cunningly, and she deliberately staggered backward, slamming herself against the wall behind her with a piercing scream.

Blood immediately began flowing from her forehead.

"Ah! My head... my belly... help!"

Almost instantly, a powerful and violent Alpha pressure swept through the entire corridor.

Leo charged over like an enraged beast, shoving me aside. His large hand clamped around my throat, slamming me hard against the wall.

"Amelia! Have you lost your fucking mind?!" Leo's eyes blazed red as he roared at me, his voice deafening. "You dared to hurt Grace and my pup?!"

He choked me until I could barely breathe. My back slammed hard against the wall, the pain making me gasp.

Grace lay on the floor, clutching her belly, crying pitifully.

"Leo, don't blame Amelia... I just told her about my pregnancy. I thought she'd be happy for you, but she probably thought of her own inability to conceive and lost control for a moment. I'm fine, as long as our pup is safe..."

The more she spoke this way, the more Leo's fury blazed.

Before I could react, Leo grabbed my shoulder and hurled me against the wall.

My spine hit the concrete floor hard, sharp pain radiating through my battered body.

I gasped, tasting blood, my wolf whimpering from the impact.

The Alpha command struck me like a hammer.

"Kneel and apologize to Grace immediately! Otherwise, I'll reject you in front of everyone today and strip you of your Luna status!"

I looked up at him in shock, blood slowly trickling from my split lip.

Before I could speak, Grace let out a pitiful whimper.

"Leo, please don't punish the Luna. It's all my fault. As long as my pup survives, it doesn't matter if she beats me to death to make herself feel better."

Tears streamed down her face.

Leo's face contorted with rage as he glared at me viciously.

"Amelia, I command you to kneel and apologize to Grace," he ordered. "Then you will beg her forgiveness for attacking her and my pup."

I struggled to breathe, looking at this man I'd loved for years, finding him utterly foreign and repulsive.

"Leo..." I gritted my teeth, enduring the sharp pain in my neck, and said slowly. "I. Will. Never. Apologize."

Leo froze, apparently not expecting me, who had always been so submissive, to resist like this.

Tears burst forth, streaming down my cheeks as my entire body trembled with rage and heartbreak.

Seeing my tears, for a split second, remorse flashed across his face, and his tone softened slightly.

"Amelia, listen... just do as I say. Apologize properly, and I'll consider letting this go. As the pack's Luna, how could you attack a pregnant she-wolf? You've tarnished the pack's honor."

I wrenched myself free from his grip.

"If you want to officially reject me, you can do it anytime."

I straightened my disheveled clothes, my eyes coldly sweeping over Grace and her fake fragility.

Without another glance at them, I turned and strode out of the hospital.

"Leo, go after Amelia quickly."

She said breathlessly, her hand pressing the wound on her head.

"Don't worry, the pup and I will be fine... cough cough."

Her whimpering made him stop in his tracks immediately.

"Stop talking. She's not even pregnant. Right now, your and the pup's safety is what matters most."

Leo's voice was firm.

With my enhanced wolf hearing, I heard every word he said.

I returned to the Packhouse.

Pushing open the master bedroom door, I found it empty and bone-chillingly cold.

Since Leo held the marking ceremony with Grace, he'd spent nearly every night at her apartment.

Grace, emboldened by Leo's favor, had gradually encroached upon my Luna authority: she took over the she-wolves' training, brazenly attended Council of Elders meetings, and even meddled in Pack affairs.

On countless deep nights, while Leo mated with Grace, I endured the torment of our mate bond alone, curled up in bed by myself.

Now, it was time to end all of this.

I walked forward and tore down the photo of Leo and me from the Luna ceremony.

I smashed it against the wall. The glass shattered.

I didn't want to leave any trace of my former foolishness, any trace of the love I'd wasted on him.

I began throwing away everything related to the past: gifts he'd given me, our photos together, gifts we'd prepared for future pups.

I stuffed them all into garbage bags, erasing these memories as if our years of marriage never happened.

I pulled out my suitcase and started packing what I'd take with me, only to realize there was nothing worth taking.

Finally, my gaze fell on the velvet box on the vanity.

Inside lay a Luna ring, the one Leo had personally placed on my finger at the mating ball years ago, when we were declared mates.

How bitterly ironic it seemed now.

Just then, noisy footsteps sounded downstairs.

"Careful, Grace, walk slowly."

Leo's gentle voice rang out beyond the door.

I went downstairs to see Leo helping Grace inside, her head wrapped in white bandages.

Seeing me carrying a bag of trash, a flash of impatience crossed Leo's eyes.

"Amelia, pack your things and move to the guest room," Leo commanded. "Grace was frightened by you at the hospital today. The doctor said she lost too much blood and feels dizzy. She needs me to care for her throughout the night. Give up the master bedroom and sleep in the guest room."

He wanted me to give up the master bedroom to his mistress?!

"Care for her?" I laughed bitterly. "Then why don't you stay at the pack hospital to care for her? Why the fuck are you bringing your mistress into our home?"

"Watch your language, Amelia," he said sternly. "I'm just making amends for your mistake. You put Grace in this condition. Whether you like it or not, Grace is staying in this house."

Grace's voice came out weak.

"I'm sorry, Luna Amelia. I didn't mean to move in. I'm just worried about the pup..."

She said this to twist the knife deeper.

My wolf howled with rage.

I looked Leo straight in the eye and said loudly, "This is my home, Leo. Make her leave."

Leo hesitated.

Suddenly, Grace clutched her belly.

"Leo, my stomach hurts a little," she said softly.

"Enough!" he roared.

"You've never carried a pup, how could you understand Grace's hardship? Move to the guest room first."

I stared at him, feeling the color drain from my face.

"As you wish, Alpha Leo," I said quietly, my voice dangerously low.

Tonight would be my last night in this den.

I turned and walked toward the door.

"Leo, go check on Amelia quickly."

Grace's false voice rang out behind me.

But then came Leo's disdainful snort: "Let her go! It's just her playing hard to get. Don't bother with her. Without me, she won't last even a day! She'll come crawling back and begging soon enough!"

I didn't look back.

I had just pushed open the Packhouse door when a piercing laugh came from upstairs.

The sound came from the nursery I had originally prepared for our future pup.

Rage instantly consumed me, my wolf growling furiously.

That room held immense significance for me.

Three years ago, Leo and I had carefully decorated it together, eagerly awaiting the birth of our pup.

The pale moonlight-colored paint on the walls, we'd applied it. The exquisite oak crib in the corner, we'd chosen it together.

Over these years, because of my weak body and inability to conceive an heir, that room had become my deepest wound.

Whenever the darkness of night pressed down on me, I would come here alone to heal, seeking a shred of comfort among those soft little blankets.

Now, he'd actually let Grace in there?

Fury burned in my chest.

I rushed up the stairs, through the corridor, and shoved the door open, only to find Grace sitting comfortably on the very crib I had carefully selected.

"This room is wonderful, Leo," she cooed softly, her hand stroking the bed rail, undisguised smugness in her eyes.

"Our pup will be so blessed to have this place after birth."

I didn't think twice before rushing in, ready to shove her away.

But before I could get close, Leo strode forward and grabbed my wrist, pushing me away with force.

"What's wrong with you? You burst in here like a lunatic!" he barked, his brows furrowed.

"You're really going to give this room to her?" I stared at him, my voice hoarse and broken.

"Have you forgotten what this room means to me? You promised me this room would only ever belong to our pup!"

Leo snorted coldly, his tone dripping with arrogance and impatience. "Enough, Amelia! You've disappointed me all these years. You still haven't gotten pregnant. This room sitting empty is just a waste. Better to let Grace use it. She's carrying my pup now."

"So I'm supposed to just hand over my hope to someone else?" My heart was bleeding.

"You'd better face reality and accept the current arrangement." He threatened me coldly.

"If you keep making unreasonable scenes like this, I'll have to reconsider whether you're still fit to hold the position of Luna of Ironclaw Pack."

Looking at that face I once loved so deeply, watching him treat me so cruelly for another she-wolf, I felt all our memories crumbling in an instant.

His sweet words, those promises, they'd all become poisoned blades stabbing into my heart.

I said nothing more, shook off his hand, and walked out of the room.

In the end, I moved into the guest room.

However, as a werewolf, my keen hearing became the cruelest torture device.

I heard the rhythmic creaking of the wooden bed, accompanied by Grace's sweet moans and Leo's low grunts.

"Leo..." Grace panted coquettishly, "Our child will definitely be the strongest Alpha. You're amazing."

Leo's voice was thick with lust and pride. "The one in your belly is the true heir of Ironclaw Pack."

"But Amelia... she's still the Luna after all."

"Don't mention her. It kills the mood." Leo snorted coldly, his tone filled with undisguised contempt.

"A Luna who can't even bear a pup? And she still boils those foul-smelling herbs every day, really thinking I'd still have the appetite to touch her?"

Hearing this, I was thunderstruck, frozen in place.

Thinking back to how I'd traveled everywhere trying to conceive an heir, enduring agonizing pain... it turned out all of it had been my own self-deception!

All his tenderness toward me, his patience, his guilt, all fake.

I kept blaming myself for not being able to bear an heir for the pack, never knowing I was just a ridiculous stepping stone from the very beginning.

I clenched my fists tight, nails digging deep into my palms, blood dripping through my fingers onto the floor, but I couldn't feel any pain.

Because the ache in my chest was already so intense I could barely breathe.

But I didn't cry.

After that nauseating night, Leo practically never left Grace's side.

As for me? From the moment I accepted the truth, I stopped holding any expectations for him.

Several days passed. I was in my room organizing the last of my personal belongings when Grace's affected voice drifted into my ears.

"Leo..." Her voice was so fragile it seemed ready to shatter at a touch, carrying a restrained sob.

"I felt some cramping in my belly again today. I'm so scared... scared I won't be able to keep our pup."

"But the doctor said my body is too weak..." Grace sniffled, her tone full of pitiful grievance.

"I heard that the Crescent Moon necklace around Amelia's neck received the Moon Goddess's deepest blessing at the altar. If I could borrow it for a while, it would surely bless our pup to be born safely. But... it's her treasured possession after all, and she already resents me. Never mind, I don't want you fighting with her because of me. I can endure more hardship myself, it doesn't matter..."

Hearing this roundabout manipulation made me want to vomit.

That necklace was the symbol of Ironclaw Pack's Lunas through the generations. At my Luna ceremony, Leo had placed it around my neck himself.

On the surface, Grace was praying for the child's well-being, but in reality, she wanted to brazenly strip away the last remnants of my dignity as Luna.

"Don't talk nonsense. You're carrying my heir now. Nothing is more important than you and the pup."

Leo snorted coldly, completely disregarding his former vows. "I'll get it from Amelia tonight. You should wear it, carrying my heir, you need the best protection."

If I'd heard these words a few days ago, they would have cut me like claws.

But now, my heart was nothing but a dead wasteland.

Before long, Leo pushed open my door.

"Amelia..." He walked over and gently took my hand.

"Grace's health is a bit fragile. The pack witch said the Moon Goddess's blessing on the Crescent Moon necklace can help her deliver safely. Could you... lend it to her? Just until the day she gives birth."

"Sure."

I agreed readily, my tone so calm it surprised even me.

Leo froze, a flash of astonishment crossing his face. He clearly hadn't expected me to agree so easily.

He'd anticipated a major scene.

"Leo," I lowered my eyes, putting on an exhausted appearance.

"I've been running around trying to conceive an heir all these years, and the doctor said my body has been severely damaged. I really don't have the strength to bear Luna's responsibilities anymore. So, I want to officially transfer Luna's duties to Grace."

I walked to my desk and picked up a document I'd prepared long ago, handing it to him.

"This is the responsibility transfer agreement. It needs your signature. Once you sign, the necklace is Grace's."

Relief flooded his face, as if I'd solved all his problems.

He tried to pull me into an embrace, but I dodged, not letting him touch me.

Grace's sticky scent still clung to him, making my wolf sick.

"Thank you for being so reasonable," he said, giving me the first genuine smile I'd seen in weeks.

"After Grace gives birth to the pup, I'll return the necklace. Your status as Luna will never change, Amelia."

He finished speaking and eagerly picked up the pen.

He didn't even look carefully. He signed his name without hesitation.

The moment his signature dried on the paper, the mate bond connecting us in my mind began to tremble violently, but I bit down hard and didn't even furrow my brow.

I expressionlessly raised my hand and undid the clasp at my neck.

"It's just a necklace." I handed it to Leo, my voice ice-cold. "Grace can keep it forever."

Leo took the necklace, triumph and eagerness flashing in his eyes.

He didn't even notice the finality in my tone, turning to rush off to Grace.

Seconds later, I heard Grace's delighted laughter.

I stood in the empty room, gazing at the moonlight outside the window.

Tomorrow, I would leave this place forever and never look back.

That night, Leo tried to approach me as usual, as if nothing had changed.

But the moment he reached out, I instinctively pulled away.

Ever since learning the truth, his scent mixed with Grace's only made me nauseous.

I closed my eyes, pretending to be asleep.

Just then, I noticed Leo's body suddenly tense. Grace was contacting him through the mind-link.

I didn't know what Grace said through the mind-link, but Leo bolted upright in bed.

"I'm coming right now. Don't move, don't panic."

He whispered reassurances, and seeing I was asleep, hastily dressed and left the room.

Some force compelled me to follow.

I silently trailed behind him, finally stopping at the nursery door. The room I'd once decorated with such anticipation for my child.

Grace was half-reclined against the crib, her nightgown clinging to her swollen belly.

Leo rushed over and pulled her into his arms.

"The pup's kicking so hard," she said softly. "It's like he really misses you."

"I'm here now,"

Leo murmured, his voice tender.

"It's okay, I'm with you."

Grace looked up, false tears brimming in her eyes. "I know I shouldn't be selfish... you haven't been with Amelia in so long. But..."

Leo stroked her hair.

"Don't worry about Amelia. She's already asleep."

"But if Amelia wakes up and finds you in the nursery with me..."

"You're carrying the pup. You're what matters most."

He said firmly.

I stood there, listening to him coax Grace in that gentle tone.

Grace wrapped her arms around Leo's neck, kissing him with urgent desire, pulling him closer.

"We can be careful. It won't hurt the pup." He murmured against her lips.

In an instant, they were lost in each other's passion in that room I'd so carefully prepared.

This was what he looked like when he truly loved someone.

I stood outside the door, feeling my wolf roaring with fury at this ultimate betrayal, desperate to burst in and tear them apart.

"Quiet," I soothed my wolf softly. "They're not worth it."

I numbly turned and walked back to the guest room.

The mate severance agreement lay quietly on the bed, Leo's scrawled signature at the bottom.

He thought he was so clever, thinking this was me surrendering to him.

He never imagined that by signing his name, he'd set me free.

I sat on the edge of the bed, staring at the photo on the table.

I picked up the frame and smashed it against the wall.

The glass shattered into countless pieces.

I didn't sleep that night.

Watching the time tick by, second by second.

When dawn came, I would leave completely.

He didn't know yet what price he would pay.

At dawn, I'd already packed my bags and was carrying them downstairs.

Right there in the hall, I witnessed a revolting scene.

Grace, completely ignoring the strange looks from the pack guards and servants nearby, sat suggestively on Leo's lap, giggling as she waited for Leo to feed her breakfast.

Seeing me come downstairs, Grace pretended to be startled, scrambling off Leo's lap like a frightened deer.

I paid no attention to this sickening display, walking straight ahead with my luggage, ready to leave.

"Stop!"

Leo called out immediately. His gaze fell on my luggage, brows furrowed, voice sharp. "Amelia, what tantrum are you throwing this early in the morning? Where are you going with that luggage?"

I had no intention of responding.

Seeing I was leaving, Grace immediately put on an aggrieved expression.

She picked up a glass of milk from the table and walked over, her tone full of false concern. "Amelia, don't be angry. I noticed you haven't had breakfast. Here, drink some milk first..."

"Take it away."

I said coldly, casually pushing away the glass she offered.

"Ah!"

Grace screamed, deliberately falling backward dramatically and landing hard on the floor.

"Leo, it hurts! Amelia, why did you push me!"

She clutched her belly and cried out, tears instantly streaming down her face.

"Amelia, I know you've always resented me, but I was just kindly offering you milk. Why did you deliberately push me!"

Leo immediately flew into a rage.

He first checked on Grace's condition, his hands caressing her belly, whispering comfort.

"I'm fine, Leo." Grace sobbed. "Just a little frightened. But Leo, I'm so scared of what Amelia might do next."

Then he stood up and strode toward me.

I tried to step back, but he grabbed my arm.

"Didn't I warn you?!" he roared, gripping my chin so hard it felt like he'd crush the bone.

"Since you won't drink it yourself, I'll feed you personally!"

He angrily grabbed the remaining milk and roughly forced my mouth open, pouring the milk directly down my throat.

I choked violently, struggling desperately, but he threw me aside like trash.

I lost my balance and my forehead slammed hard into the corner of a nearby table.

Sharp pain struck, and warm blood instantly streamed down my forehead, blurring my vision.

Suddenly, a tearing pain shot through my abdomen.

"It hurts..." I clutched my belly, crying out for help. "My stomach hurts so much..."

However, Leo only looked down at me coldly from above, not a trace of mercy in his eyes.

"Amelia, you think you can fool me with this pathetic act?" he scolded harshly. "You just viciously attacked a mother carrying a pup, and now you're playing pitiful? Let me tell you, your tricks don't work on me!"

Suddenly, Grace's voice came from nearby.

"Leo? I think my belly really hurts. Is it the pup..."

He turned without hesitation and carefully lifted Grace from the floor into his arms.

"Don't be afraid. I'll take you to the pack hospital right now."

He coaxed Grace in gentle tones, his voice full of concern.

He personally carried Grace and strode out of the main house.

Even now, with me lying on the ground covered in blood, struggling in pain, he didn't spare me a single glance.

This realization was more sobering than any physical pain.

He would hurt me without mercy to protect Grace.

Wave after wave of excruciating pain hit me.

With trembling, bloodstained fingers, I pulled out my phone and dialed emergency services myself.