An Explicit Female Muscle Growth story
I want this!By MagnusMagneto [ https://www.magnusmagneto.com ]
Version 1.1
Retouched August 2018
Originally Published: June 2016
Approximately 7,700 words
The Story So Far:
You’re currently on a hike at a nearby park with your girlfriend, Helen.
Helen wanted to lose weight for a new year’s resolution, and you secretly hoped she’d succeed. Or better yet, build some muscle. Helen doesn’t know, but you secretly lust for muscular women. So much so that you’ve spent many evenings reading Female Muscle Growth Stories and looking at art of impossibly buff girls.
At the start of your hike, Helen explained that she planned to take her resolution of getting fit seriously and mentioned the possibility of lifting weights to reach her goal faster. This veered into conversation about a hypothetical super-muscular Helen. You tried to play it cool, but she pressed the issue. Eventually, you admitted that huge muscles would be great on her.
The hike continued, and the sun turned a strange pink hue. Helen noticed that her phone lost reception, and you found the same true for yours. She teased you about the prior muscle discussion, insisting that she’d start lifting weights and become jacked. This fantasy dominated your mind.
More time passed, and you became tired. Meanwhile, Helen was brimming with energy, which surprised you since she was unathletic. On a lark, she flexed her arms and you squeezed them; they were harder than you thought they’d be. You were visibly attracted to Helen’s muscles. She teased you about your reaction to feeling her arms.
The hike continued, and you eventually took another break. You noticed that Helen’s lower body was more impressive than usual, and she showed off her calves. She goaded you into a calf flexing comparison, and her leg muscles blew yours away.
Energized, Helen wanted to do squats. You joined but could only complete 15 repetitions. Helen was able to perform 50 – and her legs looked even more muscular when she finished. You thought she was just pumped up from the workout.
At Helen’s invitation, you grabbed onto her muscular gams, and enjoyed her body more than ever before. She fed off the attention and become aroused herself. In heat, Helen fetched your member and quickly stroked you to climax. She held the discharge to the sun, admiring how splendidly it shimmered in the pink light.
On a lark, Helen rubbed your spunk on her arms. You were weirded out at first. But Helen’s spontaneity was rewarded: her arms slowly grew more muscular and defined over the next few minutes.
The muscles weren’t just for show. At the next clearing, while you rested, Helen jumped up to a nearby tree branch and started cranking out pull ups like a pro. You watched with amazement the as powerful muscles in her back lifted her over and over.
Helen couldn’t do a single pull up this morning, yet here she was putting your athletic abilities to shame.
After her workout, Helen dropped down and flexed her muscles – which were undeniably larger than before. Her new body instantly aroused you. She noticed this, and deftly milked you again, this time rubbing the discharge over her flabby tummy. Moments later, the fat melted off – soon replaced with bulging abdominal muscles.
At the sight of this, you were ready again for action. You’re a healthy young man but hadn’t been this virile before. Helen didn’t hesitate, claimed she was going to keep becoming stronger until she made “Ah-nuld look like a weak, impotent, little boy next to me!”, and wrapped her lips around your shaft.
The chapter ended with you releasing into her awaiting mouth…
1.) Immediately After Chapter 1
You’ve never released so much in your life. Pump after pump, it keeps coming, flowing into Helen’s warm, sensual, waiting mouth.
Only a few minutes ago, you shattered your record for ejaculation volume; yet here you are, producing even more than last time. Helen sucks and caresses you, her tongue overloads your sense of pleasure. You both desperately want to give her as much of your seed as possible, as every drop will make empower her further.
After well over twenty contractions, you slow down. Helen increases her efforts, takes a breath and groans, “Come on baby, turn me into a goddess!”
You thought you were empty, but somehow summon a small reserve, and you continue to expunge more super-powering seed down Helen’s throat. Another eight contractions, and you’re finally tapped out – completely and utterly exhausted.
You fall back onto your bottom, panting deeply.
Helen stands up, stretches out her arms, and groans with pleasure – beyond anything you’ve heard before. She shuts her eyes, clenches her teeth, and bites her bottom lip. “God this feels so good…” she murmurs out loud. All you can think about is the coming transformation.
Your hype is rewarded. Helen’s entire body quivers. She gasps, and you hear flesh tearing. Suddenly, all of your girlfriend’s muscles swell up and expand further – growing right before your eyes. The foundation of her body shifts: her clavicle and ribcage widen – her entire upper half broadens, pelvis thickens as well. For a moment, she looks slightly misshapen.
Then more fun comes. First her pectoral muscles push out further: the line between the center of her chest plunges down deeper, and as a result each pec juts out further.
Helen’s pecs appear to be flatter, wider, and better formed than your own. A few lines of definition stretch across each. Her breasts remain the same size but thrust higher thanks to the muscles beneath.
Next Helen’s traps rise higher and wider, taking on a more imposing shape. Mass materializes on her shoulders – they’re now rounder with deeper separations between each part of her deltoids. Her lats spill out from behind her back. Combined with her wide hips, they form an alluring hourglass figure.
Helen opens her eyes. She seems to be aware of what’s happening. With a grin on her face, she slowly raises her right arm up and tenses it, watching it grow on command as the bicep swells up to new heights, small veins and striations of definition run along it.
You lower your gaze to her tummy; each abdominal muscle is engorging itself on whatever energy fuels its growth. They’re gradually growing with each passing second – the blocks slowly push outward, taking up more space. The emerging abdominal muscles have thickened Helen’s core slightly – but her waist is proportionately smaller than before.
Her serratus anterior and oblique muscles are now visible, the last vestiges of fat have receded. A bottom pair of abdominals is more apparent, giving the appearance of an eight-pack. And a v-shaped Apollo’s belt has formed beneath her naval.
Helen’s thighs threaten to burst through her shorts, despite their stretchy material. Her legs, which once jiggled with fat from the slightest movement, now look like they’re carved out of stone. A deep tear-drop shaped split down runs down their center.
Despite her growth, Helen now has a thigh gap between her legs; this area was filled in before but is visible thanks to an advantageous redistribution of mass. Another strange improvement: Helen’s knees appear to be more rounded, and more aesthetically pleasing. Beneath them is a wide flank of calf muscle. Even looking at her head-on, you can see the large bulge of muscle flaring out from behind her shins.
Helen’s skin seems to be glowing slightly, though you’re still not positive if that’s a side effect of her transformation or caused by the strange sun reflecting off her skin. You think it’s the former because her hair is also longer, reaching past her shoulders now. Despite having recently grown, it looks good, somehow perfectly styled and groomed. It has a natural shimmer to it.
Helen takes a few strides towards you; her hips shake back and forth. You’re growing slightly erect from her mere presence. But despite your desire to grant your girlfriend even more power, your testes are thoroughly emptied for the time being.
After closing the distance, Helen gently lifts a foot to your crotch, probing you for stiffness. “Hmm. Only a chubby? I guess you did give me quite a bit there, so some rest is in order.” There’s something different about her voice. It sounds richer and breathier. She bends down and places her hands under your arms before lifting you up with surprising ease – causing her thick biceps to bulge.
A moment later you’re back on your feet. You’re still in a daze, staring at Helen. Even her eyes seem brighter, sparkling with newfound intensity. You reach down and gently brush your fingers against her right cheek, her skin is like velvet to your touch. “It’s… softer,” you say.
Helen reaches up and feels her left cheek, “Huh, I think you’re right. Cool!” her teeth seem whiter too, and despite what she just consumed, her breath smells immaculate.
You want to linger for a few moments and take in what has happened, but Helen is too energetic to rest. “We gotta keep going to the peak. Tell you what, I’ll race ya to the next rest stop?”
You shake yourself to and bring back the slightly teasing wise-ass personality that Helen fell in love with, “Pfft, your funeral, all that muscle will just slow you down!”
Helen suppresses a belly laugh. You both know your statement was absurd.
The two of you prepare to run. After a short countdown you take off.
2.)
The next thing you see is Helen’s massive muscular rump—dimpled and bubbled—propelling her rippling hamstrings with blazing speed. Within moments Helen claims a large lead. She runs out of your sight as the path takes a sharp turn. You try to keep pace, but between the physical activity earlier, and the monolithically draining oral sex session, you find it difficult to walk, let alone run.
You push forward, moving somewhere between a walk and a light jog in terms of speed. Beating Helen in the race was never a possibility – but you still need to get to the next stop.
You notice the sun has darkened again. You debate for a few moments whether it’s pink or red now – settling on neither. You pull out your cell-phone – still has no reception.
Sweat coats your forehead, which makes the sun seem even more overbearing than it is. You wonder if the bizarre color of the sky and Helen’s growth are connected. It makes sense, but it’s so outlandish.
You wonder if you’re changing too. You reflect on how the refractory period between your ejaculations has diminished significantly. And of course, the massive amount of discharge you produced – far more than ever before. You ponder, ‘And there’s my magic jizz making Helen even more muscular. Though I wonder if she’d be powered up by all spunk, or just mine.’
The thought of Helen’s buff bod helps you push past the pain, draw more reserve stamina, and keep moving.
–
It’s a grueling ordeal, but after fifteen minutes or so, you arrive at the next clearing. You see Helen waiting for you – doubtlessly having arrived long ago. You scramble over to a nearby bench and sit down, desperately trying to catch your breath.
Helen is performing single-legged pistol squats with impunity, finishing repetition after repetition with good form. Her legs look larger than before your race.
Your best benchmark for measuring Helen’s growth are her shorts, which now look closer to awkward underwear than the respectable bottoms they were this morning. They fail to cover her muscular cheeks, half of which spill out past the confines of the garment.
Helen’s huge ham-like quads now have deep separations within them, highlighting the extent of her muscular development. Her hamstrings bulge outward even from her side profile. And her calves have exploded into coconut sized hearts of power.
She’s unchallenged by the exercise; her body adapts and thrives from it.
You’re certain that Helen is growing even without exposure to your seed. This makes sense to you, as she had already started displaying signs of muscle growth before the initial hand job.
Helen finally notices your presence, “There you are! Slowpoke.” She giggles before walking over to you. As she draws closer, it becomes clear that she grew again.
“Hey Helen,” you say, panting. Your eyes dart around, trying to meet her gaze while examining her body.
“You’re already exhausted again,” she chuckles warmly.
“Yeah…” You stare at her biceps – there’s a deep split down their center. You don’t remember that being there.
Helen replies, “Not me though, I’m brimming with energy!”
You look down at her bulging, muscular thighs. They look like like a pair of thighs that belong to a professional powerlifter – not Helen. They’re the sexiest thighs you’ve seen in person.
“Well… my arms are probably still stronger than yours,” you say, not believing this at all, instead trying to spur further action.
“You really think you’re still stronger than me? I mean, were you ever stronger than me to begin with?” Helen asks with a giggle, “I’ve always been, well… bigger. And you’ve always been skinny.”
You aren’t sure about the past, but in truth, you’re 99% positive you aren’t stronger than her anymore. Regardless, you know what buttons to press for maximum fun, “I’m not sure… I am taller, and I have longer limbs. I’m also a guy.”
“You DO know that I effortlessly picked you up, before that delicious power up back there, right?”
“Doesn’t make you stronger than me.”
“And I have, well, all of this!” Helen places her hands on her hips and thrusts her chest out, putting the full glory of her body directly in your view.
“Like I said, you’re just getting a bit of a pump from all the exercise. Doesn’t mean you’ve actually gained any muscle.”
Helen narrows her gaze and gives you a half smile. You can tell from this look alone that she’s ready and willing to play along with your proposed game. “Well, I pushed your arms behind your back already, and that was before the power up. How do you propose we test this?”
You stand up and pivot behind Helen before wrapping your arms around her, putting her in a bear hug. Her skin is soft—softer than ever—but the flesh underneath is unfathomably hard, packed with dense, powerful muscle.
“And… what’re you trying to do?” Helen asks.
You tighten your grip a bit, “It’s a bear-hug. You have to try and escape,” you explain, squeezing harder. You’re afraid of hurting Helen, though you’re unsure if you can.
“Like…” Helen takes a deep breath and pushes her arms outward, “This?” She casually breaks your grip as if it you weren’t trying at all.
You try to force her arms back down, but it’s impossible. “Umm… Yeah.”
Helen grins wickedly before weaving behind you and wrapping her arms around you. “My turn!”
Her embrace is warm – the sheer heat and potential energy within her limbs is overwhelming. If she wanted to, she could inflict serious harm; but you’re certain she never would.
Regardless, you struggle, trying to escape. For a moment, you move Helen’s arms and create a little space. She grunts, increasing her efforts. You feel her body heating up, feel the muscles gripping you shifting. ‘Is she getting stronger again, or just trying harder?’ you wonder.
Either way, the result is the same. Helen’s grip becomes absolute; you remain frozen like a bug in amber – unable to move at all.
You finally concede, “Alright, you win.”
Helen lets go and giggles wildly, relishing in her dominance. “That was fun! I have one more idea for a little competition.”
“Oh yeah?”
“When we pushed against each other with two arms each, I pretty quickly pinned yours back. But… What if you used both of your arms against my one?” She raises a single arm.
You shrug. You can’t think of a wisecrack, and truthfully, you want to see Helen overcome this challenge and become even more amazing. You clasp both of your hands onto one of hers, which is difficult with your larger fingers. After getting into position, you push with all your might; to your surprise, you’re able to shove her arm back a fair amount before she stabilizes.
“Hmmm… So, with both of your arms at that angle you can kind of budge mine,” Helen notes before letting go. “That’s a bit of a problem, don’t you agree?”
“A problem?” You raise a brow.
Helen nods, “And I know just how to solve it!” She smiles mischievously and caresses your already-erect member.
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