*note* Please feel free to make corrections, as my office license just expired and I typed this up in notepad because my internet connection was down . . . . leading me to realize just how dependent on spell and grammar check I have become!
"My god, she's not impressed" Dennis thought to himself - "if the camera did this to Marcy....what did it do to Sarah?"
His sister just moaned softly, a deep purr coming up from her throat - if her voice was pure sex before, it made them both drip before she even started forming her lips into words.
"Ohhhh honey. Thanks for giving me something worth out-flexing! Since you asked so nicely, I'll tell you". With a graceful movement that sent the muscles in her legs rippling and bulging obscenely she lowered herself to the ground. As Sarah lowered herself (first to one side and then the other like some muscle bound Elvis impersonator) something terrifying and captivating was happening: Sarah was shaking out her muscles - just shaking them out like throw rugs attached to her bones - and they blossomed with beef and vein so easily and carelessly (and massively) it was surreal. Sarah stretched one leg, and lowered herself down to one side as her calf shimmied and bloated to the size of a dorm refrigerator, cracking the concrete floor. Immediately after her quads just unfurled and stretched far more skin than her entire body should have had into knots of ropy muscles that dwarfed industrial dryers. Then she casually went up and back down so she was next to Marcy as her other leg bloated as much as the first, sending waves of mass up abdominals that seemed to be inventing new abdominals on the fly. Sarah's pecs flew up over her head, and crashed down with a force that made everyone jump, before settling into twin masses that spread easily five feet in front of her. They rested in heaps of pure sex, and as shredded and massive as they were her insane pecs twitched aimlessly as if bored - her nipples however, were not so casual. Sarah's nipples were so stiff they seemed like they were trying to pull themselves off of her areola, stretching out almost a foot long and throbbing with veins that made them deep red while her pecs were almost white from the blood her raging nipples were pulling as they stretched further and further. Sarah gasped with desire, her musky wetness filling the entire room with the scent of raw animal lust - or in her case, muscle lust. Slowly, sensually, she licked her lips as her shoulders rippled up, forearms as thick as oil drums, her triceps thumping through the floor to the basement below.
Sarah shook out a bicep, with her arm straight out - utterly uncurled, probably completely relaxed.
Completely.
Relaxed.
Sarah's bicep was over SEVEN FEET TALL. Sarah was only 5'4". Her bicep was almost two feet taller than she was! If she hadn't been down on her ankles, there wouldn't have even been space in the room for her biceps - as it was her muscle fit easily in the crater Marcy created even though she was deliberately sitting on the floor when Marcy had been standing. With a purr, she stretched her long tongue out to her bicep, and licked it, moving slowly up with a shiver.
A vein as thick as a mans arm glistened with her lust as the muscle twitched under her tongue.
Gasping so breathlessly that her voice alone would have caused them all to cum if her body hadn't started an unending cycle of it already, Sarah spoke, curling her arm slowly:
"Why do I always have to be better than you? Because I know - AH!"
The spider web cracks on the ceiling multiplied so rapidly that the entire thing became a cloud of dust as her bicep tensed, veins as thick as an elephants leg dividing into ever smaller and smaller mazes over thousands of pounds of muscle squeezing together and up like some tan, glistening Kaiju raising itself up under a rain of plaster into the next room as muscles split, swelled, and bulged monstrously. Her muscle hit twelve feet high before her forearm even hit 45 degrees. The smell of her wet pussy lips dripping filled the room with their heady musk. Everything was turned off white as the remains of the ceiling dropped on them like a heavy blanket.
"You want to mmmm-muscle-fuck - ah!"
At 90 degrees Sarah's bicep smacked against the second story ceiling with as much force as a wrecking ball, blasting fragments up into the attic. Her entire body was swelling as well, like some advancing wall of stone and steel wound about with tree roots and covered with silky smooth, insanely feminine skin. Soft silky skin that was wrecking the entire house.
Her fucking bicep was over eighteen feet tall!
By that point, everyone was sputtering into the beginnings of an intense orgasm - even Sarah's voice started to lose control as she said "mmm- muh- muscle fuck MY BROTHER!"
With a sensual moan, and a long wet lick Sarah squeezed her catastrophic muscles and caused two more cataclysms: The floor, already broken by her growing calves and triceps, dissolved entirely as they dropped into the basement. Her peak however, bulged out with another thick striated peak as her biceps got not only taller but thicker, bulging and swelling another peak as the whole mass grew ludicrously. By now Sarah's biceps filled three floors, her peak exploding midway through the attic. Squealing like saran wrap, her flex was starting to look more like a geological formation than a human muscle, a throbbing, bulging, mutant mass of split mounds the size of cars splitting to make way for split mounds the size of bigger cars, and bigger....
Sarah's biceps were at least thirty feet tall. And the walls around them were starting to crumble.
She moaned loudly as thick white cream blasted between her legs. Both Marcy and Dennis were already deep in orgasm, throwing up clouds of plaster as they followed suit with a compounded orgasm that lasted for what seemed like hours. They were lying on Sarah's muscles, ON HER RELAXED MUSCLES while her bicep filled their entire house from basement to attic.
As they started to catch their breath, Sarah continued with her silky, sybaritic tongue:
"Honey, we both know that neither of us came from human parents - but he's completely human, so he's not really my brother. So why do I always have to be better than you? Oh, baby, it's because you want to mmmmmmuscle-fuck Dennis ". Sarah licked her lips, purring softly. Her pecs rippled monstrously, the titanium hard striations deep and delicate enough to pick up Dennis and toss him right to her insane nipples.
"I just want to muscle fuck him MORE. . . . . ."
With a flick of the wrist, her bicep bulged and blasted the roof clean off, causing the walls to crumble around it. The remains of the houses frame barely made it half way up her bulging, sweating, rippling mass of insane muscularity. Her bicep was a throbbing primordial dinosaur of flesh and veins.
Her biceps were easily twice the size of a two story house!
Even after cumming so hard so many times, Dennis was so hard he could swear his skin was tearing off, and he was probably cumming his own internal organs at this point, but he didn't even care. He sucked on a nipple that filled his throat and bulged and flexed in his mouth while he humped frantically against a single muscle boob he couldn't even wrap his arms all the way around while cum gushed out of him like some endless bottle of champagne and a million times more intoxicating. Crazed with lust, he started frantically licking and sucking all over her pecs, thrusting into every striation as Sarah moaned. Twitching her pecs she lifted him up into the air to her shoulders where he buried his dick deep into the split of her biceps his eyes rolled back into his head at the realization: he was standing on her shoulder, half way up the side of her bicep, and that his entire six foot one frame, on tiptoes, with his arms stretched above his head, was less than a third of the way to her peak. With his hands, his tongue, his lips, his cock, gallons of cum that shouldn't physically be able to come from his body; with the entirety of his moaning, orgasming, muscle lust possessed body, Dennis worships Sarah's bicep.
"Mmmmm, way more!"
And for the first time in her life, Sarah fully flexed.
Her bicep tripled, and tripled again. Even on her rising shoulders, her bicep blasted up to twenty times his size, then more, and more as she finally topped out at a size normally reserved for skyscrapers and sent her biceps crashing down as her muscles maneuvered Dennis behind her as she spread her dripping legs.
Dennis had pushed her to discover the limit of her biceps - she couldn't squeeze them any more.
Any more than ONE THOUSAND FEET HIGH!
Almost crying, Sarah actually begged "Dennis, please, while I'm pumped to my limit - FUCK ME RIGHT NOW".
He could see her muscles almost stretching out into the distance like vast tracts of muscular geology, her back spread so wide it covered the porches of several houses on each side. Her muscles spread for hundreds of feet in each direction, but her tiny waist and curvy hips screamed femininity, and her pecs blended with her breasts in a way that he could not describe as they also stretched hundreds of feet ahead - something bout their perfect ROUNDNESS, their massive throbbing nipples stretching lustfully but still unable to make it to the end of biceps that dwarfed every muscle on her insane body. Her biceps stretched across their back yard, the yards of the people behind them, across the street, and disappeared into the bushes before he could see their heads, throbbing and twitching emerge in the next subdivision. Sarah wasn't even flexing anymore. He was beyond lust, beyond orgasm. How what came next was even physically possible, he had no idea, but . . . .
View Portfolio
Visit Notebook
Send Gift Points
Awards
Badges
Send Email
Community Newsfeed
General Discussion
Sponsored Items
Book of Trinkets
Static Items
Books
Groups
Interactive Stories
Audio
Campfire Creatives
Community Notes
Crossword Puzzles
Documents
Folders
Images
In & Outs
Madlibs
Photo Albums
Polls
Product Reviews
Quizzes
Survey Forms
Web Pages
Word Searches
More by this author