Quick Gainer - Story

David - 22 - Short Brown Hair - 6'0" - 185 lbs - Soft, but not fat
A former high school football player. He was never the star on the team or had delusions of playing at the next level, but was athletic enough. Now, 4 years later and kind of out of shape, he joins Ironworks gym to get his athleticism back.

Michelle - 18 - Long Black Hair - 5'2" - 103 lbs - Very thin
Has been David's neighbor her whole life. Growing up, she had always had a crush on David, but was too shy to say anything, not to mention the age difference would have been inappropriate. Unfortunately for Michelle, David saw her as a little sister even now, not as a potential romantic interest. They had been good friends for as long as she could remember, but in a bid to spend more time with him she has decided to tag along on his gym visits with surprising results.

"So, the treadmills are right over there. I'll be right here with the free weights if you need anything." David gestured as he showed Michelle the gym.

"Oh. Okay. If you think that's best. I, uh, thought I would be lifting with you. After all, I am kind of new at this." Michelle wasn't actually interested in weightlifting, but would do anything to spend more time with David.

"Hmm. I don't know. Usually girls..." David looked over at the cardio equipment and counted just 1 woman and 6 men. Looking back to the weights he was surprised to see the numbers were even at 10 per gender, Including a few females moving some seriously impressive poundage. "Huh. Well, I guess that would be okay. Just be careful, alright?"

"I'll watch you super closely." Michelle promised, meaning something more than David realized.

"Alright, then. I was going to start with arms today. So, for this exercise the trick is to keep your back straight and elbows close, so you just use your biceps."

It had been awhile, but David was confident and went to lift the 40 lb dumbbells he was able to curl in high school. "We'll do 3 sets of 10 curls, alright?"

"Uh, sure." Michelle mumbled back, eager to watch him from up close.

David was able to lift the weight, though with none of the directives he had given Michelle. Every curl was a jerky swing up with his whole body. On his third set he stalled on the 7th rep and dropped the dumbbells to the floor. "Alright! feels good. How about you grab the 5-pounders down at the end and repeat what I just did."

"Okay!" Michelle said, eager to please him. She quickly retrieved the lightest weights from the rack and began her own lifts. Unlike David, each curl was laser-focused and slow with zero movement other than her rising forearms. After her first set, she sat the weights down softly and turned to David excitedly.

"How was that?! Did I do them right?"

"Yeah, yeah. You did great, Michelle." He looked back to her and smiled from something else that had his attention. "You're a natural. 2 more sets now!"

Michelle started to bend over for her 5 lb weights again when she looked back at David, hoping to maybe catch him checking her out as her butt went in the air pointing straight at him. Instead, she saw that he had turned his head again and was watching another girl's butt. She stood back up to get a better view and noticed that David wasn't even trying to hide his staring. He was looking right at a woman with what appeared to be a considerable amount of weight slung across her shoulders. She was seemingly effortlessly dropping her hips almost to the floor and raising back up with a hypnotic rhythm.

Was this why David had never given her a second look? Was he into girls like that? Her question was answered as he discreetly adjusted his shorts. Michelle couldn't blame him. Barely anything was covered by her sports bra and tight shorts, and the skin that was showing was intoxicating. Michelle had never really thought of a woman having muscles like that. This girl, and now that she was looking she saw 3 or 4 others, were rock hard, extremely defined, and clearly not here to lose mass. Michelle had been under the impression that women came to the gym to lose fat and make themselves smaller. Instead, these ladies were specimens of the opposite, clearly reveling in the growth of their still feminine musculature.

Michelle looked back at David and saw he was still staring at that girls and now she knew what she had to do to catch his eye. Putting the 5's back on the rack, she moved down and placed her hands around the 10's before looking back at the other girls in the weight room, two of which were currently flexing incredible muscles in a mirror together. "This is crazy." Michelle muttered to herself, before moving one step further over and grabbing the 15's.

The thin girl was able to get the weights off the rack and went back into her focus mode. Surprisingly to her she was able to get the dumbbells up. Part of her expected to fail spectacularly. Her form was no longer perfect, but was still within the realm of acceptable, and much better than David's had been.

Placing the weights back on the rack after 2 more complete sets she turned to David, who was now admiring the two ladies posing.

Before she got his attention Michelle gave a pose of her own, raising both arms to shoulder level and flexing her biceps. Her breath fled her lungs as two pumped balls of muscle rose from her previously featureless arms. They weren't huge, maybe the size of a golf ball on top of her arms, but her lack of body fat meant that they were rock hard with every striation visible. Releasing her flex, she smiled wide and made her way back to David, tapping him on the shoulder.

David had never realized just how sexy a woman with muscle was. Most of the time at the gym these past couple of weeks he would watch the surprising number of fit girls pumping iron instead of focusing on his own lifts. As a result, his improvement had been minimal.

Michelle on the other hand had proven to be a dedicated pupil. She followed every direction to the letter and was even using some techniques he hadn't shown her. She must have been doing some research at home, he thought, good for her. Also, she was using more than the minimum weights, which was a surprise considering her scrawny body. She must have noticed the plethora of fit girls as well, because after that first day she always hid beneath a hilariously baggy hoodie and loose nylon pants. An odd choice of attire for the middle of summer unless you were ashamed of your body.

"A/C is broken. Gym is still open. We apologize for the inconvenience. Ironworks staff." David read from the paper taped to the front door. "Oh well. We may have to cut this one short if we get too miserable."

Michelle nodded and muttered something under her breath while playing with the zipper on her hoodie. David started to ask what she said before he looked through the now open door and lost interest.

The heat inside was oppressive, and the gym clientele dressed as such. There wasn't a woman wearing more than a sports bra and shorts, showing so much skin glistening with sweat.

Michelle followed David to the treadmills and they started with some light cardio. David had taken a liking to the treadmills. As much as he hated running and preferred to lift, the cardio equipment gave him a good few of the rest of the gym. The time passed considerably faster when you could watch a number scantily clad dream girls build their muscles.

Today, though, he found himself distracted. Although the gym was almost exclusively occupied gorgeous women wearing minimal clothing, he found himself staring at Michelle. She just looked so uncomfortable. "Why don't you take off that hoodie?" He asked, pulling off his own shirt while jogging. "You're sweating gallons over there."

She took a quick glance at him and immediately focused back on her run. "Sweat's good, right? That's how you know it's working, right?"

"I guess, but you look miserable."

"I'm fine." She replied and forced a smile while pushing matted hair from her face.

"Whatever you say." David turned off his treadmill and made his way toward the free weights, Michelle close behind.

David lifted the 40's and started his sets of curls. Normally he'd be drooling over the near-naked blonde goddess benching 225 less than 10 feet from him while he lifted, but instead he was still watching Michelle as she stretched. She looked even worse. "Oh, come on. It's even hotter over here. That sweatshirt is silly. You look ridiculous." He said with a chuckle.

Michelle's already red cheeks blushed as she looked at the floor. "Oh. Um... Alright, fi... fine. You're right, I guess."

She unzipped the hoodie and let it slip from her shoulders, revealing a tight black sports bra. A garment he had never seen her wear. However, it wasn't the bra that had his attention.

"You're right.  That's much better."  Michelle said with a quick smile to him.  Then she looked back to the ground and hurried to the rack to start her exercise.

David stood dumbfounded.  He had seen her in revealing clothing many times over the years, but now she looked like a different woman.  That alone was a realization.  He now looked at her as a woman, instead of a little girl following him around.  And what a woman she was.

He stared, frozen in place, as Michelle walked past her usual 15's and grabbed the 25's.  Her now bare arms easily removed the dumbbells from the rack, causing every muscle in her arms and shoulders to flex, displaying definition David hadn't seen in any of the other girls at the gym, or in his recent online searches for that matter.  She began her curls and as usual her form was perfect.

This gym had a disproportionate amount of muscular women, but none looked quite like this vision before him.  Other girls around were bigger than her, but none could hold a candle to her physique, with every fiber of every muscle showing through paper thin skin.  Each curl forced a ball of muscle the size of a baseball to surge from her previously scrawny limbs, a thick vein protruding clearly from a peak rising high from her arm.

David wasn't done with his own sets yet, but that was the furthest thing from his mind now, right there with the supermodel lifting 4 plates on the bench next to him.  Instead, he remained dazzled as his neighbor, the literal girl next door, moved over to the 35's and continued her flawless curls.  Her lifts continue to accentuate her sharp muscularity and David had no choice but to examine every inch.  Her peaked biceps.  The boulders in her shoulders.  The roadmap of carved muscle on her widening back.  The most defined abs perhaps on the planet.  Even her chest.

Though she still had no breasts to speak of, her pecs had grown to easily fill an A cup.  Instead of soft flesh filling the bra, the fabric was pushed out by slabs of muscle that looked carved from granite.  It was like nothing David had ever seen.  He was mesmerized.

He was more than mesmerized, he was turned on.  With every curl it was getting harder to hide what was happening in his shorts.  He was shocked he wasn't more conflicted about being so aroused by a girl he had considered a little sister figure before today.  There was no conflict at all.  She had jumped to full-on sex symbol.  But how could he act on it?  Would she even want him to?  Did she think he was attractive? Suddenly he felt a little self-conscious about his own shirtless body.

If he was going to make a move he had to decide soon as her curls were coming to an end.

Michelle had been completely tuned into her curls, so he didn't think she had noticed him ogling her.  He swiftly grabbed up the 40's and launched back into his own lifts, staring straight into a mirrored wall about 2 feet in front of his face.  He kept curling, not really keeping count, until he felt a presence move around his back from left to right.

In the mirror, he saw Michelle go around him and grab the 45's from the rack.  He tried not to stare and did a full set of 10 before racking his dumbbells and stepping back to watch again.  Her form had lost it's flawless precision, but not sloppy.  Just a little extra help from her back.  Mesmerized again, he could have sworn that her arm had swollen noticeably larger from just a moment ago.

He was done, his arms feeling pretty worn out and not really able to think of anything else to do.  Between the heat and the massive shock, his brain was barely working.  As she racked the weights (on the heavier side) next to his, he knew he couldn't stay quiet anymore.  And he had to address her changes.  He couldn't remember ever being this nervous.  He never had anxiety when it came to women, but he felt like he'd be sweating even if it weren't 100 degrees in here.

"Whoa.  So, Michelle.  45's?  Uh, wow."  Smooth move, dumbass, he thought to himself.

"Yeah.  I, uh, wanted to try the 40's today but you were still using them and, um, I didn't want to bother you, and I wasn't sure how, uh, far along you were, so I just thought I'd, um go ahead and try the 45's instead and although they were a bit heavy I, uh, went ahead and did the whole set because I didn't, um, want to go back down to the 35's because they felt a little light today." he stammered never quite making eye contact.

I wonder what has her so nervous? David asked himself.

"Well,  it's damn impressive," David said recovering a bit from his momentary discomfort.  "It's impressive for anyone to curl a set of 45's.  For a skinny girl that started a couple of weeks ago, I would have said impossible."

"Really?"  Michelle asked.She honestly didn't seem to realize what she had accomplished.

"Uh yeah.  I'm a male athlete and you see how I usually just curl 40's, right?"

"I just assumed that's the most you wanted to lift.  Like you didn't want to get any more muscular or something."

"Haha!  I'd kill to get more muscular,"  He stated with a flex of his own arms.  Noting that his was still considerably larger than hers, though nowhere near as ripped, he started to fall back into regular conversational comfort with her. "40's are just the heaviest I can do full sets with without cheating too much.   Gains like yours are downright unprecedented."

"Oh." She muttered.  "I just assumed it was normal.  I mean, there are so many strong looking women here."  She gestured to the gorgeous blonde bombshell that had been on the bench, but was now posing in the mirror, smiling while flexing an incredible most muscular pose that was visibly straining her sports bra.

"Uh, yeah.  She's not the average gym-goer.  Also, I'd bet it took more than just a couple of weeks following around an idiot like me 3 times per week for her to get that body.  Do you know why you're having such success?  Are you working out some other time, too?  Using supplements or anything?"

"Uh.  No. I don't even know what supplements are, nor would I know what to do in here by myself.  Remember?  I thought this was normal." She stated with a double bicep flex.

All of David's regained composure melted away in the face of her flex.  Her arm had indeed surged bigger when curling the 45's and now they grew even bigger.  He had to mentally revise his description.  Earlier he had thought it was the size of a baseball, but now they were undoubtedly larger.  What's bigger? A softball? Yeah.  It looked like she was smuggling a pair of softballs in her upper arms.  The hard, veined, shredded masses peaked just over her equally intimidating delts and sat above lats that were becoming visible from her front.

"Uh.  Nope.  It... It's not.  You're incredible... I mean, it's incredible. Your body is.  The growth is incredible I mean. Ahhhhh.  It's hot in here, right?  Too hot.  I think it's time we head out."  David pulled his shirt back on  "See you back here Tuesday?"

"Yeah..." Michelle responded not releasing her flex, but finally making eye contact.

Contact David immediately broke. "Okay.  See ya then!"  He swiftly turned and speedwalked out of the gym.

Slowly lowering her arms and turning towards the mirror, she began to examine her body again, just like that first day.  She ran a hand over the sweaty ridges of her mountain range of abs.  She raised her other arm into another flex and examined it from several angles.  She had assumed she had a good start after seeing her bicep flex for the first time a few weeks ago, but apparently she had underestimated herself.  Apparently she had a talent for building muscle, and it instantly became her favorite trait.  Her inclination to bodybuilding had given her what she always wanted: Dave's attention.  As oblivious as she was, it was painfully obvious that he was practically drooling over her flex.

Looking at her own arm, she caught sight of the blonde again, this time flexing with a friend.  She and another girl were showing off their biceps for each other.  While neither woman was as cut as Michelle, they were still both impressively defined and easily larger than her own arm.  She would go as far as to say both of them were bigger than David.

These two were the most impressive, but looking around she saw the only people willing to brave the heat today were women.  There were somewhere between 10 and 15 other girls around and every one of them had a far above average physique.

Michelle was grinning uncontrollably.  David obviously likes muscle on women and this was clearly the place to gain it.  And with her new found aptitude for growth, she'd have him very soon.