Many might consider our relationship strange, but Diane, Blake and I have something special. It started out with just Blake and I. We had been dating for a few months, and we both decided to get on a work out program to get more fit and look better. I was a natural gainer and put on weight quickly, and soon had two thick pecs and some thick, defined biceps.
Blake was thin, but she had great full, round C cup breasts. After a month or two of weight training, she developed a fit body. Her thighs got thicker and her ass got bigger, which was fine by her. She also started seeing lines on her abs, the beginnings of a rippling six pack. She didn’t really expect her arms to thicken as quickly as they did, but before long she could flex up a pretty impressive bicep, too.
Diane was a different animal altogether. She had resolved to hit the gym long before we met her. It started as a way to get in shape, but it became an obsession. She discovered the pleasure in the pain of lifting weights. She enjoyed feeling her muscles swell with blood. The feel of a good pump. She imagined it must feel like what a boy feels when getting an erection.
Oh and she liked seeing the changes in her body. First, as she learned to eat clean and do cardio, she saw her stomach, arms and legs tighten and tone up. Then as she began heavier weight training, she saw her muscles swell and grow.She liked seeing them get bigger. Stronger. She liked the feeling of power, and confidence. And she liked to imagine that other people were watching her, willing her to pump harder, and grow.
She just kept wanting more. She started with pills she got from some jacked guy at the local gym. Some kind of oral steroid. She was such a freak for muscle, so obsessed with getting bigger, that she started doing double-doses. She blew up into a 225 lb muscular freak, which on her 5’8” frame looked massive. But the bigger she got, the more she wanted. She wanted to be more than just a muscle woman, a mere body builder. She wanted to be a beast.
Before we met Diane, Blake and I both were surprised to discover how turned on we became watching each other grow more muscular. I had never really had a fetish before, but now we both did - muscle. We started getting deeper into it, looking up bodybuilders and watching videos. Then we went to the porn sites, getting into bigger and freakier bodybuilders. It was so fucking hot. And that’s about the time we first encountered Diane at the gym.
Diane walked over to the full-length mirror wearing nothing but a black lycra sports bra and skin-tight lyrca biking shorts. A smile formed on her lips as she gazed at the massive form before her. She had asian features, with almond eyes and short-cropped jet-black hair. She flexed her arm as a soft grunt escaped her lips. Her bicep rose, criss-crossed with thick blue veins, measuring nearly 18 inches of solid beef. She flexed into a double bicep pose with another soft grunt. Her sports bra stretched skin tight, so tight her nipples were clearly protruding underneath. With her short hair, her head looked too small for her surging deltoids and pumped biceps. She brought her arms forward in a crab flex, and her bra audibly stretched as it expanded to contain her massive pecs. Ripples of muscle and blue veins rose over the top of her sports bra as she crunched her pumped up pecs. "Oh yeah" she breathed, as her 42" chest rose like striated, crumpled blocks. She once had smallish, b-cup breasts, but those had been replaced - eaten alive - by a muscular chest even a male bodybuilder would envy.
She layed on the bench, pumping the 85 lb dumbells up over and over, crunching her huge pecs together. Sweat poured down the creases of her pumped up pecs and down her abdominal range. She grunted softly with each pump, but got louder and louder as she neared the end of her set. When the pain became fierce, she concentrated on the thought that everyone in the gym was staring at her, eyes bugged, as she grew bigger and bigger, sexier and sexier.
*Grunt* "gonna be huge"
*Ungh* "fuck yeah, look at these huge pecs"
*Grr* “watch them grow!"
*Ungh-Rah!* “I’M A FUCKING BEAST!” she shouted, nearly cuming as she pumped her muscles nearly to bursting.
Blake and I just stared, slack-jawed and drooling. Blake’s shorts had a damp spot in the front from her gushing wetness, while I had a huge hard-on tenting my shorts. Neither of us had ever seen such a beast this close up, and it was the hottest thing either of us had ever seen.
-----
When she finished the set, huffing and puffing like an animal, Diane looked past her own surging musculature in the mirror to see us staring with horny muscle-lust. She smiled. This is exactly what she had always wanted, an audience to admire her growing muscle. She turned around, made eye contact, and flexed into a massive double biceps pose. Blake and I practically shuddered with arousal, watching this colossal monster pump her muscles.
“Not bad for a girl, huh?” Diane said through gritted teeth as she flexed. Her biceps were huge, softball-sized mounds with throbbing, thick blue veins pumped from her workout.
“Wow,” was all I could stammer. Blake just moaned.
“I’ve been waiting a long time to find someone like you,” Diane said, releasing her flex and turning to the mirror.
“Someone who can appreciate all this muscle the way I do,” she said, curling her arm into a side chest pose. Her right pectoral muscle became a, inches-thick striated plate, barely covered by her sports bra, as her hard nipple tented it. Diane licked her lips then turned to look back at us.
My mouth hung open at the sight of the muscular adonis standing before him. My hard on was clearly evident through my shorts, and a little wet spot was forming from my precum. Blake licked her lips, her nippes fully erect from her arousal.
“You do appreciate it, don’t you,” Diane said as she raised her arms behind her head, inhaled quickly, then exhaled into an abdominal flex. Her abs hardened into six striated lumps, and veins started bulging.
“Oh yes!” I stammered as Blake nodded furiously.
“Good,” Diane said. “Now come here and feel it”
Blake and I were overcome with lust and practically ran over, both placing our hands on the musclebeast before us. I could barely dent the thick cables of muscle that ran across her abdomen. Blake squealed as she grasped Diane’s surging pecs and felt no give at all.
At that point, Diane’s surging libido took over. She was horny from watching her own tremendous roid-fuelled body reach peak conditioning, and her two new muscle-worshipers pushed her over the edge. She grabbed the back of Blake’s head and shoved her thick tongue into her mouth. I grunted in arousal, grabbing Diane’s rock-hard, striated glutes as I pressed my tongue to her cobblestone abs, licking the salty sweat of her unbelievably horny muscle.
As my hands roamed the vast alien landscapes of her quads, I could feel her slick skin slipping over the great fibrous tissue, hard and dense beneath the surface. Suddenly I felt a hand roughly grasp the back of my head as Diane shoved my head downward, toward her crotch. I willingly complied, right there in a public gym, as I peeled down her lycra shorts and sunk my tongue into her muscular pussy.
Diane grunted, getting off not only on the oral stimulation but the thrill of two worshipers sexually servicing her in public. She felt her libido surge as she pushed her thick tongue deeper into Blake’s willing mouth. Blake gagged on the appendage, but that only excited her more, as her hands roamed over Diane’s thick, vascular pecs and meaty, striated shoulders. Diane was so sexually thrilled by all this worship that her pussy surged with juices, coating my face as she had her first orgasm. My dick was hard as a rock.
Diane withdrew her serpentine tongue from Diane’s mouth and ordered me to lay down on a bench and strip off my shorts. She straddled me roughly, my hard cock sliding easily into her tight but super-wet pussy.
“Unngh, yeah,” she moaned, then ordered Blake to come closer. In an impressive show of strength, she lifted Blake up, tore her shorts down with her teeth, and shoved her face into Blake’s sopping wet pussy. Blake squealed excitedly and wrapped her thighs around Diane’s massive, bulging traps. Diane continued to lick and suck Blake’s pussy as she began thrusting her hips, sending waves of pleasure through us both.
My hands grasped Diane’s angular, muscular hips, feeling their insane definition and hardness, and before long I was ready to cum. Blake, too, was so overcome by the crazy muscular woman that she started to scream, “Cccummminnnggg!” She and I simultaneously orgasmed as Diane grunted and sucked, swallowing Blake’s juices and absorbing my copious amounts of cum into her pussy.
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