Muscle Growth Fanfiction Novels & Stories

"It is not enough. I need... more. I need you." It wasn't just him. The energy we had shared—the raw, ancient starlight of the Moon Well—had stripped us. It had burned away the last of the logic in my brain. Biology and magic were screaming for the same thing: fusion. My muscles were locking up, a wall of tension that demanded a release. "I know," I breathed. I stood up. My knees shook, but I forced the muscles to lock. I was a monster. A parasite. And I wanted this violation.

Until I couldn’t. And that fucking terrified me. "What was that about my hands?" I screamed, whipping around so fast I knocked into the bookshelf. "Fuck, fuck, fuck." I crouched, grabbing my shoulder. "Can’t I just grow some damn muscle? That fucking hurt." "Shit, I’m sorry." Dominic crouched beside me. "Let me see." I shied away. "It was just a little bump. I’m fine." He raised an eyebrow. "I do have muscles, and that would have hurt me."

He only crouched beside me and took my hand in his. “You will feel it through your entire body” he whispered, “but you will be fine, Lucian. You are only becoming what you should be, son” He was not helping. I felt like my ligaments were being torn and ripped apart. I groaned and cried in pain, the cracking of my bone intensifying. Then it happened like in the movies. My bones stretched the more and fur began to grow on my body. I straightened up, my body growing. In a few minutes, I stood tall and huge like a monster. Red eyes were staring back at me—my wolf.

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It was like every muscle in my body was twisting and turning, reshaping itself into something new and powerful. At first, I tried to fight the changes. I tried to cling onto my human form, but it was like trying to hold back the tide. My fingers elongated and thickened, my nails becoming sharp claws. My skin erupted into a thick layer of fur, and my bones began to snap and shift as my limbs grew in size and strength. The pain was excruciating. It felt like every inch of my body was being torn apart and rebuilt. I screamed out in agony, my throat raw and my voice hoarse.

She dropped hers, eying mine with distaste. I cocked an eyebrow. Doesn't want to know why I chose this sword? Fine. I flung mine to the far end. She requested for my sharp claws and she will get it. They slid out as if in response to my anger. Over the months my height grew impressive and my shoulders became bulkier. It looked like I hit the gym everyday. I chuckled when she licked her lower lips as I flexed my breast muscles. She doesn't know what is coming.

I could feel my strength growing and growing, even more than it had before. I felt the sensation of swelling up, of growing in size. That was my muscle mass increasing in size and durability. My clothes were shredded to pieces, unable to withstand my growing body mass. My limbs, already crushed and reformed into the form of a wolf’s limbs, hardened and tightened with muscle. Claws painfully ripped out from my bones to the tips of my fingers – paws?—and they raked the floor I had been thrashing around on for the past hour, leaving huge and deep gashes.

My arms feel like boulders, my brain is ringing and my vision is blurry. I lie there helplessly as he violently rips my jeans away, leaving me cold and stiff in just my underwear. His heavy breathing sounds like the toll of death bells. I can almost smell his insatiable lust. When his fingers caress my dry sex through my thong, I know it’s over… *** I’m promising all of you three chapter updates tomorrow because I realize that updates have been slow. I’m a full time student and it gets hard sometimes. Please forgive me.

As Jade thrusts back into me, I bite my lip and hold Dan's shoulders, staring into his lust-filled gaze. I groan. After that, it's Dan's turn. There is no time to stop and consider. My muscles are refusing to work as Dan and Jade settle into a rhythm, thrusting deep one after the other. As he presses harder, Jade's grunts turn into growls, his pelvis smacking into my ass. As I take them both into me, Dan thrusts up into my body, my muscles straining, strained beyond what I imagined they could ever be. It was so near.

Devon's pov Huff huff I panted as I lifted the dumbbell, I was soaked in sweat and my arms were trembling. My muscles were sore from training my body all weak and I felt like I could break down at any moment but I kept pushing myself. Unlike the other alphas, I knew I was on the weaker side but that didn't mean I was going to remain there. Now that I had awakened, I had potential for growth and I was going to push my body to the limit of that growth.