bigmpregnm

Beefcakes

Commission

It was late afternoon, the peak hours in the most famous gym in the city. Everybody who wanted to show off their sculpted bodies and flaunt with no shame or filter came to this gym. The smell of sweat was thick in the air, as was the sound of grunts, laughter, and loud music thumping overhead.

The place was crowded, and five guys laughed near the free weights section. They weren’t massive, but they acted like they were. Their shirts were too small, ...

July Posts Poll

Hey everyone. So, things have been wild these last few weeks, and they don't seem to be getting easier any time soon. Still, I'm trying my hardest to get back on track with the schedule. I know I have one story pending to complete June's posts, but hopefully it'll come out in a few days. Thanks so much for your patience.

Sadly, I have lost many members these last few weeks, and that's obviously sad, but I get that they're probably not so satisfied with what I post or how often I do it. ...

Enjoy the Ride - Part 9

After Greg’s visit—that wild, emotional, desperate fuck—I felt different. The situation was still complex. My emotions were a mess. Things weren’t easier. If anything, I was heavier, emotionally and physically. But Greg’s arms around me and how he looked at me so lovingly and lustfully made my heart ache less. I’d felt wanted, loved, and desired for the first time in weeks. And that feeling stayed with me for a few hours until the guilt set in.

I felt like I had cheated on M...

Dawson's Dairy Diet

Support Tier-exclusive

Dawson Coman was only twenty-two, but his body defied every expectation biology, science, or imagination could place on the human form. To call him muscular was like calling a mountain a hill—a complete understatement. He was built beyond comprehension. His physique wasn’t only large. It was monolithic. Every inch of his body was an exaggerated portrait of masculinity, inflated to inhuman dimensions.

His pecs were the first thing anyon...

A Dad's Struggles - Part 5

Patreon-exclusive

Bastian entered, smiling at Jack, and for a moment, the doorframe seemed to shrink. He towered easily over Jack. His broad shoulders stretched the seams of his shirt, and his lower body tested the limits of his pants. Jack blinked, still trying to process the familiarity in the man’s face. It was like they had met before, but he couldn’t remember. There was something immediately warm and captivating about him, especially the beautiful smile he sh...

Wrestling the Changes - Part 15

Hayden’s first labor had been terribly painful because the sextuplets were big, but the second labor was worse—the babies were slightly bigger, and everything happened much faster. He had never felt anything like it before. His entire body was wracked with sensations so intense and overwhelming that it was nearly impossible to process them all at once. Every inch of him ached, burned, and stretched as if his skin, muscles, and bones were reaching their limit.

His belly felt like an ...

Paternity Instincts

Patreon-exclusive Father's Day Special

June 14, 2025

It was nearly midnight, and Matthias sat upright in bed, propped against the headboard as the soft sheets bunched around his waist. Tim was cradled in his arms, fussing softly with little gasps and hiccups as his tiny body squirmed with gas that wouldn’t settle. Matthias rocked him gently, supporting the baby’s bottom with one hand while the other rubbed firm circles on his back. These sleepless n...

The Man of the House

Support Tier-exclusive

Derek let out a low groan as he walked from the living room to the kitchen, with one hand pressing on the small of his back and the other cupping the lowest curve of his belly. He moved slowly, planting each foot wide apart to keep his balance as his swollen feet slid slightly on the hardwood floor. He was breathless, barely able to navigate the house.

At 32 years old and 5’11”, Derek had never imagined his evenings would look like thi...

Heavy is the Cock... - Part 1

Patreon-exclusive

Arthur had always considered himself an average man. At 30 years old, he stood at 5’10” tall, weighing a comfortable 185 pounds. His build was sturdy—a dad bod, a good-looking combination of muscle and softness, shaped after years of working in construction and indulging in his wife’s cooking a bit too much. He was proud of his looks, aware that his clothes were snug in the right places but hinting at a huggable softness.

His chest and ...

Life Lessons - Part 12

The Surprises of Fatherhood

Alan barely had time to process everything he felt—it was overwhelming. When Max said he was ready to push, the next contraction struck like a bolt of lightning, destroying all previous knowledge about how painful childbirth could be. He knew how it worked, and he knew his wife had screamed through the birth of their two boys, but experiencing it himself was a whole different thing. No book and no class could’ve prepared Alan for what h...

Mass Monster Eric

Support Tier-exclusive

Eric Janicki’s black Ford Raptor pulled into the gym parking lot. He turned it off and shifted his heavy frame in his seat. He had to be careful to avoid squishing his massively broad chest against the steering wheel or brushing his shoulder too tightly against the door.

“Okay, even this truck is starting to feel like a clown car. Maybe it’s time to upgrade it.” He huffed with a cheeky eye roll, looking around the oversized space w...

Match March: Madness - Part 6

Patreon-exclusive

After Wayne moved into Brett’s renovated barn, his body changed faster and more dramatically each day. His belly grew heavier and rounder at a rate that stunned everyone, especially Wayne. His legs and arms thickened with fat and softened muscle. His chest swelled even though he knew it was too early to produce milk—Brett insisted it was bound to happen soon. His thighs spread wider to accommodate his bulkier hips and swollen balls. Even his cock...

Commission: Poe Dameron

Hey, everyone. I'm happy to share this drawing I did for a great friend who allowed me to post it. If you're a Star Wars fan, you'll know who this is. hehe. Enjoy.

Late Store Encounter

Support Tier-exclusive

It was a slow summer night, and the fluorescent lights buzzed softly overhead as 20-year-old Sam dragged his feet down aisle three with his arms full of canned goods. The convenience store where he worked the night shift—the only 24/7 store in their sleepy little town—was deathly quiet. The only sound was the soft whir of the ceiling fans and Sam’s heavy, labored breathing. Nights like these were perfect to relax at home and watch a movie,...

June Posts Poll

Hey, everyone. I hope you've enjoyed May's posts, including the Mayternity Special. Now we've arrived to another special month because Father's Day is coming, and I'm excited about it. Stay tuned and I'm sure you'll enjoy what's coming (I hope so, haha).

Anyway, here are the options for you to vote. June has five Saturdays, so the four more voted stories will get updates.

Billy's Choice - Part 6

Billy scrambled to compose himself after their passionate moment was abruptly interrupted. He smoothed his shirt down over his swollen middle, with his cheeks flushed and still feeling the warmth of Callum’s hands on his body. He glanced toward the door with dread, regretting his decision to invite Antonio over tonight.

“We need to look normal,” Billy said, looking at a confused Callum.

“What? Are you waiting for someone?” Callum asked, and Billy nodded. “Hmm… don’...

Heavy Load - Part 5

Additional Tier-exclusive

Zeke cried out, and Gerald went pale. The boss’ hands gripped the steering wheel so tightly that his knuckles turned white, but he couldn’t move. He couldn’t speak. The guttural groans from Zeke’s throat echoed in the car, and outside to anyone who happened to be near the carpark at work. Gerald could only sit there, frozen in the driver’s seat, staring forward with wide, glassy eyes. But the sounds ignited something deep inside his...

Big Enough for Two? - Part 3

Parker didn’t get to see either Tim or Luca for about two days because they were busy with school and work—assignments, late shifts, back-to

Parker didn’t get to see either Tim or Luca for about two days because they were busy with school and work—assignments, late shifts, back-to-back meetings, and deadlines. But somehow, not a single hour passed without a message from one of them popping up on Parker’s phone. He smiled whenever he saw the notifications, emojis that ranged fr...

Double Duty, One Man - Epilogue

Patreon-exclusive

Cade was on his back in bed, with his legs spread wide and a satisfied grin adorning his face as he felt Simon’s hands softly caressing his thighs. He could feel the heat coming from the young man’s body, aware that the best part was yet to come. Simon pushed his hips forward, entering Cade’s hole and making his fertile body tense. Loud moans filled the room as the 14-inch-long cock went all the way in, stretching Cade’s hole like it was the ...

A Moody Mayternity - Part 2

Patreon-exclusive Mayternity Special

Later, the ride home was quiet. Rain sprinkled against the windshield, and Matthias drifted lost into his own thoughts. He looked through the passenger-side window, with one arm protectively draped over the swell of his belly. His heart still felt tangled—half pride, half ache—after the events in the culinary school.

Patrick said nothing, keeping his eyes on the road. But after a few miles, his hand slipped from the gears...

Enjoy the Ride - Part 8

Mr. Griffin didn’t yell. He didn’t even raise his voice. He only stood there, holding his phone out to me, showing the image from the security footage frozen on the screen.

“Explain, please,” Mr. Griffin said, staring at me. “What were you thinking, sneaking out of the penthouse like that? You think I wouldn’t find out? You think it’s acceptable to risk your health—and the babies’—only to sneak off behind my back?” He didn’t ask about Greg or why I was with him. ...

New Tier - General Support

Hey, everyone. I'm launching an extra tier only for those who would like to give me some additional support for what I post here, on Tumblr, Bluesky, and X (mpreg or growth). It's $12 a month. The other tiers remain the same ($8-Additional, $5-Advanced, and $3-Basic).

You don't need to change tiers if you don't feel like it; everything will remain the same with the story schedule, exclusive posts, and the other benefits you already have in the tier you've already joined...

Joan's Morning Routine

Support Tier-exclusive

Joan Pradells groaned softly, stirring in bed like a mountain of muscle. At 5’11” and weighing about 500 pounds, every ounce of his weight was pure, overly inflated muscle. The bodybuilding world had long declared him unclassifiable—no category to fit him into, leading him to pursue his true dream, his obsession: to become a wall of muscle mass, thickness, and size; to grow beyond any possible limits.

Even in sleep, Joan’s body see...

Support Tier Exclusive Collection

PLEASE read the ANNOUNCEMENT at the bottom of this post.

********

Mpreg🔴

• Late Store Encounter

• The Man of the House

• 2025-05-19 17:00:00 +0000 UTC View Post

A Moody Mayternity - Part 1

Patreon-exclusive Mayternity Special

May 10, 2025

Matthias blinked awake in his darkened bedroom, expecting a peaceful morning. But inside his body, it was anything but calm. His first breath came out as a whimper, and the second one, a grunt. By the time he made his third, he was shifting in bed with the clumsy frustration of a man who couldn’t find comfort no matter how he positioned his aching body.

His back was screaming again. It had been p...

Coach's Champions - Part 2

Patreon-exclusive

Coach Colin took a step forward, and the recruits instinctively tensed. Each step the big man took emphasized how massive he truly was. As he walked past the line of young men, his pecs bounced with every motion, casting shadows over his belly that only made them look more immense. He moved slowly, circling the recruits, inspecting their assets.

His broad back was like a moving wall, his lats flaring so wide that it was hard to see past him. Ev...

Wrestling the Changes - Part 14

After they managed to sort out some things, parenthood hit Hayden and Jake like a freight train. Not in the painful, traumatizing way—though there were moments of that—but in the overwhelming, all-consuming reality that meant raising six newborns. They weren’t only new, inexperienced dads but had six baby boys to care for, while Hayden was still heavily pregnant with many more.

Hayden had dropped to 394 pounds after the delivery, and while that was technically an improvement from ...

A Dad's Struggles - Part 4

Patreon-exclusive

Jack looked around the living room with a heavy sigh. Cluttered toys littered the floor like confetti, crumpled blankets clung to the corners of the couch and armchairs, and a fine layer of dust had begun to settle on the shelves and window sills after days of neglect. He groaned quietly, rubbing a hand over his tight belly, feeling the babies shifting inside as if agreeing with his exasperation. He glanced down at little Joe resting peacefully in hi...

Life Lessons - Part 11

The Surprises of Fatherhood

The OnlyFans page exploded after the live feed ended, several minutes after Max and Alan’s on-camera climax. It had been unintentional, but showing a massively muscular man like Max fucking an enormously pregnant man like Alan made subscriptions surge by the thousands in mere hours. Tips poured in asking for more. Comments exploded across every post, with the last video garnering more interactions than anything he’d ever uploaded. And f...

Match March: Madness - Part 5

Patreon-exclusive

Wayne’s life continued to change so rapidly and completely that there were days when he woke up and couldn’t believe it was real. In a few short weeks, he had come from an energetic, independent young man with a physically demanding job and a well-fitted wardrobe to become an impossibly pregnant balloon full of life. He felt his body expanding with stunning speed, pushing boundaries he never knew his frame could reach.

His pregnancy was acc...