Muscle Growth Fanfiction Novels & Stories

He grunted and squinted, and I chuckled in reply. If there was someone I looked forward to meeting, it was him. "You never changed, do you?" he muttered, clutching his stomach. “Damn it. Those little arms became strong, doll. You can punch a giant with that,” he teased and ruffled my hair. Glaring at him, I shot back, "And you are still the same crybaby I know. What kind of spell did you use that you did not stop growing, huh? Oh. Look at these damn muscles." I pressed his arms. It was hard as a rock.

I couldn't discern if it was his will or mine. Logan growled between clenched teeth, his excitement evident in his stare. He had lost control over his own body. His eyes, now red as blood, were locked onto me. Claws extended, scratching my sensitive skin. Muscles tautened, veins bulging beneath the white skin. His breath altered, and I groaned in pain as his body expanded. It caused mine to stretch along with his growth. He buried himself inside me, his face hidden in the curve of my neck. — Olivia, forgive me. I promised I wouldn't do it again, but here I am, struggling painfully against my own desires. I'll lose this fight any minute.

He jumped back, grinning. “You’re slow today,” he teased. “Slow, am I?” I lunged forward, driving him back with a series of quick strikes. He blocked most of them, but I landed a solid hit to his ribs, making him gasp and stumble. He winced, but his grin didn’t falter. “Okay, maybe not that slow.” He groaned, and I grinned. "Who's an old man now?" I taunted, and he laughed. We continued our dance, a familiar rhythm. Axel had grown stronger than he was as a boy; it made me proud to see his progress. Each time his muscle bunched, I almost teased him again; his moves were calculated and precise.

Even my cock is thicker. I feel like I’ve stepped out of a lake. That kind of unfamiliar heaviness. I shake out my arms and draw down a deep breath. There’s no need to freak out. I’m fine. It’s normal. Mated males fill out. Max said he gained twenty pounds of muscle and an inch in girth overnight when he caught Elspeth. I step forward and trip on a clump of leaves. Annie cries out. Shit. My feet are bigger, too.

“I mean Leon looks more muscular and he is at least two feet taller than before.” Leon insists. Maybe these were the enhancements Thalia was telling me about. ‘I think it’s because Thalia and I completed our mate bond.’ Then I mind linked Thalia and told her. ‘You’re two feet taller and more muscular? Is that going to translate to your yummy body too?’ ‘We will find out tonight, tiger.’ I said growling in the mind link before closing it. We run towards the trap site and sure enough, all those bastards are still there. I slow and tell all the warriors to slow their pace to a predatory speed.

For a moment I just stood there breathing in the night air and the earthy and pine scent radiating from the forest. “ It's time,” I whisper. I could feel the shift creep up my spine like a slow burning fire, I rolled my shoulders as the first crack echoes through the quiet yard, my bones began to change, “fuck,” I cursed between gritted teeth as my spine stretched snapping into position. It hurt like hell, but not like the first time, my fingers curled as dark claws pushed through, my skin rippled as my muscles expanded beneath it and my boy grew Stronger and larger.

And he'd hit a wall with impressing the ones he shared a gift with. His mother did warn that they would take a lot longer to warm up to him but it was frustrating him to no end. Even though we weren't at the level of beating mutated monsters, we'd gotten a lot stronger the past week and a half. Trevor was bulging a little more, his body gaining a bit more muscle. He was still lean but I think I like him better like this, so rugged and sexy. The thought made my pussy warm, thinking about how we haven't had time to be intimate since we'd either come back tired or come back to a fight.

Electricity is crackling in the air as my fur starts to sprout from my body. Lycus is winning, and I know I can’t turn the tables and end up winning this fight. He’s too angry, and it doesn’t help that I’m sharing the same emotion. Right now, we are more united than ever, and Chiara’s scent is blinding him from ever listening to me. Still, I try to pull him back, prolonging the shifting process as fast as possible even with my body continuously growing. The shackles start to break like ceramic around my wrists and ankles. The chains explode everywhere. Chiara runs away and blocks her face, running into the corner.

I curled my free hand into a claw and tried to shimmy up the massive body. I finally made it just as Thane's new body stopped twitching and growing. I slung one leg over the ridge of his back, nestled between razor sharp spikes. I pulled my abs in as I tried to cling to his body with my legs. I grimaced as my muscles pinched in a really short amount of time. Seems like I needed to get my butt to the guys' exercise room and build some endurance. As long as we get to help with the training regime, Thane said in my mind.

“They’re called pecs. But boobie muscle is fun too. But you’re only three. You will grow into the body you’re meant to have, and if you want, when you’re older, I can help you become even stronger.” “And have biggew boobies?” I nodded, “but, it’s not just about getting big muscles. I like being strong so I can lift both of you and your mom.” Ripley blushed; I knew she was thinking about last night. That was fucking hot, thrusting inside of her against the wall. Yeah, I’m definitely trying that again. She seemed to love it too. Just another reason to have this body. Ripley loved it, and she loved what it could do.