This carries on straight from part 2
"So what do you think?" Lisa asked genuinely caring about Sarah's opinion.
"Lisa you're Perfect!" Sarah squealed. She started to take in Lisa's body bit by bit.
"Those legs are amazing! You've got muscles on muscles! No wonder that tracksuit was so tight...damn. And your abs! Wow, Lisa you have a perfect six pack!" Sarah rambled.
"Actually it's more of an 8 pack" Lisa said shyly as she cupped her 34D's lifting them up making her leotard taught at her abs, revealing that she had indeed got another 2 rock hard abs muscles.
Sarah's eyes bulged.
"Holy shit! An 8 pack! I didn't even think that was possible!" Sarah stood up and placed her hand on the hot, dense midsection of Lisa.
"Wow, just...WOW!" Sarah carried on.
"They're so hard! Jesus Christ. Lisa you're like some kind of a goddess!"
"Nope, just a product of gymnast camp" Lisa said modestly.
"I take it you like then?" Lisa asked clearly knowing the answer.
"Fuck yes!" Sarah yelled shocked Lisa even had to ask. She was getting increasingly wet with what felt to her a lot like sexual tension in the air. Still with her hand slowly rubbing every solid bump on Lisa's abs. She gently pokes one. She noticed that she hardly dented it so poked harder still with the same result.
"I think this is the one that made me cum" Sarah joked with a little chuckle.
Lisa smiled.
"Aw, just the one? Well how about the others get in on the fun?" Lisa tensed ever so gently this still caused her abs to swell pushing Sarah's hand back.
"I'll need a hand getting these pumped though" Lisa said over her shoulder as she walked towards a chin up bar.
Sarah only just noticed how ripped her back was. Perfect definition displaying muscle on top of muscle. She tore her eyes away from Lisa's back just in time to see her impossibly tight firm butt before Lisa turned back round.
Lisa jumped up and hung down from the chin up bar.
"Sarah?" Lisa barked with a grin.
She was caught in a daze. Snapping out of it the second Lisa called her.
"Yeah?"
"I said I need a hand, wanna help me get these abs pumped or not?" Lisa asked suggestively.
"God yes! What do you need me to do?" Sarah was nearly begging.
"I'm going to do a leg raise for as long as I can, I need you to try and stop me. See that belt over there?" Lisa nodded towards a weight belt next to varied sizes of weighed metal plates in the corner.
"I need you to tie the belt to my ankles and if you think I'm holding my legs up too easily then put some weights on the belt. Got it?"
"Erm I think so. How much is too much though?" Sarah asked not quite getting what she was asked.
"You'll know. Ready?"
"Hold on" Sarah quickly scrambled to tie the belt around Lisas ankles.
"Ok, go" Sarah said waiting to see what would happen.
Lisa lifted her legs parallel to the floor instantly and with perfect form. Lisa abs bunched together and swelled slightly to met the challenge.
"So I just put these weights on?" Sarah asked
"Yep however heavy you want" Lisa said.
Sarah looked towards the pile of iron plates, she was a little intimated at first but thought she was just being silly. She found a little 10lb plate, carried it over to Lisa and gently placed it on the belt. Nothing happened.
"Is that it? If you want me to get pumped you better do better than that" Lisa jibed.
Sarah ran over to the weights again and found a big plate marked 50lbs. She struggled a little to get the weight onto the belt. But as soon as she did she stood back to look at Lisa.
Lisa's leg didn't move an inch. Her abs however increased in size to deal with the extra weight.
Sarah noticed Lisa's abs growing and got even wetter. Sarah had struggled to lift the weight with her arms but Lisa's abs were dealing with it seemingly with little problem.
"That's better...but I'm going to need more if you wanna see a real show" Lisa teased.
Sarah finally realised that more weight equals more muscle and dragged over more iron plates. She lifted another 50lb weight onto the big hook on the bottom of the belt.
"Arrrrggghh...yes more!" Lisa screamed.
*holy shit she's so strong*
Sarah looked dazed for a moment until she processed Lisa's demand and put another 50lb weight on the belt.
"...Arrrgggh..." Lisa grunted silently. Her face now looking at the wall twisted with concentration.
Sarah stole another glance and Lisa's abs and froze. They seemed to be jutting out from her midsection by at least 2 inches!
*she's lifting more than my body weight with just her abs!* Sarah thought.
Fearing her legs where getting weak at the sight of lisa she leant against the machine next to her for support.
"Fucking hell...Lisa" Sarah gently moaned.
Lisa could tell Sarah was starting to get hot.
"...add...more..." Lisa managed to say.
Sarah could hardly believe it. Desperate to see it she lifted another 50lb weight quicker than she had done previously and loaded it to the already straining belt.
"AAAAARRRRRGGGGGHHHH!!!!" Lisa screamed loudly yet her legs didn't move.
Her abs ballooned to deal with the mass amount of weight she was supporting. Her 8 pack clear to see now. Her midsection looked as though someone had stuffed 8 baseballs in it.
Sarah upon seeing this started to play with herself as if there was no tomorrow. Lisa had been holding her position for well over a minute while supporting 210lbs!
Sarah looked up to see the impossible Lisa was actually raising the huge weight! Up went her legs slowly until her toes were eye level.
"AAAAAARRRRRGGGGGHHHH!!!!"
"FUUUUUCCCCKKKK!!!!"
Both girls had screamed at the top of their lungs, one from effort the other from an all mighty orgasm. Lisa quickly let her legs fall down making the weights crash onto the floor. She just hung there slick with sweat.
Sarah was still riding the wave of post orgasmic bliss when she looked up at Lisa just dangling. Her muscles pumped and shiny with perspiration. She thought she might cum again just by looking at her swollen abs.
Lisa dropped down from the chin up bar and undid the belt from around her ankles.
"What's next?" Lisa seemed to growl looking up through her wet matted hair.
"holy shit lisa, give me a minute" Sarah said still worn out from her orgasm.
Lisa rested her hands on her head to catch her breath making her breasts pull her leotard tight. Sarah couldn't keep her eyes off Lisa's shoulders and biceps.
"Arms" Sarah blurted
"Huh?" Lisa replied
"I wanna see you work your arms" Sarah said still staring at Lisa's biceps
"You sure you can handle it?" Lisa said looking at her own arms then back to Sarah
"I mean you were pretty out of it a minute ago" Lisa said teasingly.
Sarah moved right next to Lisa and grabbed her biceps with both hands. She had to look down to double check it was really lisa she was holding onto.
"Oh my god you're... so hard!" Sarah stumbled
"You really do like muscle don't you?" Lisa asked
"Please, Lisa show me" Sarah voice broke slightly.
"Sarah are you, are you begging right now?" Lisa asked shocked
"You have no idea what your body is doing to me. Lisa, please. I need to see some muscle, I need to have some sort of release!" Sarah pleaded.
"Aw are you overdue for some 'special time'?" Lisa teased once more.
"Lisa please!" Sarah snapped.
"Ok, calm down. Follow me." Lisa took Sarah by the hand and took her to a bicep curl machine. Lisa sat down
"Here's what we're going to do. I'm going to start curling whatever weight you choose for as many reps as you say. Whenever you want you can change the weight by moving the pin to the amount of pounds you want me to curl ok?" Lisa explained.
"Yes! God yes!" Sarah was already shaking with excitement. She quickly placed the pin into the 20lbs mark. Not really knowing how much weight was too much.
"Ok erm do ten" Sarah squealed.
Lisa began curling the weight over and over until she reached 10 reps and then stopped. Sarah was watching closely and felt a little disappointed that her biceps hadn't flared up as much as she thought.
*maybe her biceps aren't as big as I thought*
"You ok?" Lisa asked not quite getting the same excited reaction as before.
"Well... Honestly, I kinda thought you'd be bigger in the arms. Don't get me wrong their rock solid and your legs and abs are beyond perfect." Sarah started explaining regretting it as she did so.
"Ha slow down. It's ok they're just relaxed. If you want to see more than you have to give them a pump" Lisa explained
"So they get bigger?" Sarah seemed to perk up again.
"Oh, they get bigger. Come on challenge me" Lisa dared with a smile.
Sarah attacked the weights with new enthusiasm. Her pussy getting wet with anticipation.
"Ok another 10!" Sarah demanded
Lisa again cranked out the reps with perfect form quickly. This time her biceps reacted only slightly.
"Geez, 40lbs. I thought that would at least slow you down" Sarah said a little surprised.
"At gymnastic camp they've introduced free weights to everyone to get them stronger. 40lbs isn't a huge challenge" Lisa told her.
"Impressive, ok then try this. Gimme 5 more" Sarah shuffled around and changed the weight once again.
Lisa lifted the weight this time struggling a little bit. Her biceps were really reacting now swelling up to met the challenge in front of her without stopping Lisa finished the 5 reps asked of her and relaxed.
"Wow I just doubled it again! You just curled 80lbs and you don't even look like that phased you!"
Sarah was a little shocked but considering what Lisa had already done today she should really know by now. Se fiddled around with the weight pin once more.
"Ok then just 3" she said with a wicked smile.
Lisa smiled back and nodded
"Ok you're the boss"
She tried to move the bar which at first didn't move. That was because sarah had the pin at 150lbs! Lisa doubled her efforts causing her biceps to swell massively. Sarah's eyes bulged as she watched Lisa's sleeve become tighter than a drum. Her once small but firm arms had grown into massive defined muscular cannons. Sarah's jaw dropped. Lisa kept lifting, she struggled to even move it at first but now there's was no stopping her. She was taking a full minute to complete each curl but she refused to let the massive weight beat her. Sarah was gobsmacked. She had asked for biceps and lisa was giving her biceps! Sarah was just standing there her eyes locked on Lisa's huge arms. Sarah moved her hand slowly making its way towards her pussy. Sarah went to slip her fingers inside of her shorts when Lisa spotted her.
"You know I've finished right?" Lisa said with a huge smile. Loving the effect her body was having on Sarah.
Sarah snapped out of her lust induced state.
"Lisa, look erm..." Sarah stuttered
"Relax. I'm flattered honestly. Besides I promised you orgasms and thats just what your going to get" Lisa interjected.
Sarah beamed a wide smile and moved to rearrange the pin. She looked at Lisa.
"Ok then Blondie give me one rep" she challenged with a silly grin.
Lisa turned to look at the bar she was holding and pulled with very thing she had. The bar didn't move at all. Sarah smiled knowing she wouldn't be able to lift it and glad this 18 year old seemed to have some sort of limit to her strength.
"Jesus, how...much...is...this?!" Lisa said through gritted teeth.
"It's ok Lisa I was playing a little trick on you, that's about all the weight on here. It's 350lbs I knew you wouldn't be able to do it" Sarah explained.
Lisa said nothing. Instead she concentrated on the bar. She was starting to turn red in the face. Lisa was starting to shake so much Sarah could hear the the weights violently clanging with the vibration. Sarah's smile faded from her face when she looked at Lisa's bicep swelling to proportions that Sarah thought was impossible. The weight was slowly being lifted. Sarah was horny as hell, she didn't care if Lisa saw anymore. She slipped her fingers down her tiny shorts and inside herself making her groan loudly. The sound seemed to spur Lisa on as she managed to lift the curl halfway. Lisa's sleeves were no longer black, they were stretching so much that they were turning a light shade of grey.
Sarah lost it and came right there. Lisa's biceps were by far the thing that had turned Sarah on the most. Lisa finished the curl with a load roar. She dropped the massive weight immediately, making the sound of a huge crash fill the basement. Sarah was so out of it she didn't even notice the loud noise. Lisa stepped away from the machine and turned to Sarah with her hands on her hips triumphantly posing. Sarah missed this as her eyes were closed from the moment that she came.
"Lisa that was incredible...I think you've ruined me from ever having a normal orgasm again" Sarah joked opening her eyes.
"Well you had better make the most of this while you can then" Lisa said with a wink.
"Just out of curiosity, how did I make you cum at the park if you couldn't see any muscles? Well apart from Claire's" Lisa asked.
Sarah looked straight at Lisa still pumped abs, and blushed
"...I felt them on my...special place" Sarah said getting embarrassed.
"Ok I get it" Lisa said.
She quickly grabbed Sarah by putting her hands on either side of Sarah's waist. Sarah panicked for a moment feeling as though she'd somehow offended Lisa.
"It's ok Sarah don't look so scared this will be fun. Trust me" Lisa purred. She then lifted Sarah off the ground making her arms tense as she did so.
"Whoa! Wow. You're so strong!" Sarah babbled.
"Wrap your legs around my waist" Lisa commanded.
Sarah thought she might know where this was going, but still gave Lisa a look to check it was ok.
"Come on do it" Lisa said again. Sarah did as she was asked. She loosely put her legs around Lisa's waist.
"Theres no point being shy now" Lisa said as she realised Sarah was holding back from making contact with her abs. Lisa quickly pulled Sarah towards her. Sarah gasped loudly as she felt the solid wall of Lisa's abs rub against her sex.
"I hope your ready..." Lisa said as she slowly started to lift her friend, this made Sarah's pussy slowly grind up and down her abs.
"Oh my god" Sarah moaned as soon as she felt herself getting wetter. She looked at Lisa's arms. They were still pumped and looked huge as they lifted Sarah's bodyweight.
Sarah leant forward tightly hugging Lisa, clawing her muscular back.
"Oh shit..." Sarah gasped, she was no longer in control, that was Lisa's job now. She was getting wetter with every second. Lisa decided to speed up. this made Sarah react loudly.
"FUCKING HELL LISAAA!!!"
Lisa smiled knowing exactly what she was doing to her busty friend. Lisa grabbed Sarah's hair and gently pulled her back making her lean backwards. Sarah just relaxed into Lisa's arms knowing full well she was strong enough to hold her weight. Lisa held her still and made sure Sarah's pussy was pulled tight into her abs. Sarah noticed Lisa had stopped lifting her and instead was just supporting her.
"What's wrong?" Sarah asked trying to sit up high enough to see Lisa's eyes over her own huge chest.
"Nothing, just wanted to make sure you're ready" Lisa asked
Sarah didn't know what Lisa was making sure she was ready for. Sarah didn't get a chance to ask.
"...please..." Was all she could manage.
Lisa smiled and pulled her in even closer making Sarah moan softly. Lisa then began tensing her already pumped abs making them grow suddenly. They pushed hard against Sarah now soaking wet pussy. Sarah arched her back and inhaled so deeply with surprise and pleasure that her massive breasts broke her zip currently holding her hoodie together.
"OOOOOOHHHHHHHH GODDDDDDDD!!!" Sarah screamed.
Lisa relaxed for a moment only to quickly tense her rock solid 8pack even harder. Sarah felt her pussy lips slowly and gently getting separated slightly by Lisa's engorged abs. Sarah came as hard as ever, making herself black out in the process. Lisa relaxed her flex and realised she'd made Sarah faint with pleasure again. She laid her down on the nearby bench press and called for her to wake up.
"Sarah? You ok?"
Sarah slowly opened her eyes.
"...wow" was all she could manage. Lisa chuckled a little at hearing this.
"So I take it that you liked it?" Lisa asked smiling.
Sarah slowly sat up wiping the sweat of her brow.
"I felt like your abs were trying to fuck me!"
Lisa seemed to get an idea from this.
"Want to be fucked by a real muscle?" Lisa asked seriously.
Sarah honestly thought she may pass out just from hearing this. She looked at Lisa's abs now gleaming with sweat and what muscle been Sarah's orgasm. Sarah's looked back into Lisa's eyes and smiled.
"What did you have in mind?" She asked.
Lisa said nothing and casually flexed her arm half heartily still causing a large mound of rock hard muscle to form on her arm. Sarah's eyes bugged out and she instantly reached out and grabbed it with both hands squeezing it as hard as she could not making a dent. Lisa just laughed. It was hard not too, she had a muscle slave practically drooling over her. Lisa had never felt so loved, so needed, so sexy! She wanted to repay her friend for making her feel this happy.
"Holy shit Lisa! This thing is huge! It looks bigger than Claire's! How big is it anyway?!" Sarah asked not once taking her eyes off Lisa's bicep.
Lisa quickly relaxed the flex.
"I'm not sure. I always cover these things up. I'm don't really like showing then off in front of people" Lisa looked somewhat ashamed.
"Why the hell not?! They're the sexiest things I've ever seen! Lisa please show them to me, please. I'll do anything!" Sarah begged her breasts still hardly covered by her now broken hoodie.
Lisa broke into a smile.
"...Ok then I guess" Lisa said.
Sarah jumped up then turned and ran upstairs. Leaving Lisa confused. Sarah quickly came back down with a tape measure she got from her room. Sarah made no effort to hide her monster chest anymore she let then bounce around as she flew down the stairs.
"Come on blondie gimme a flex" Sarah said excitedly.
Lisa gave a half hearted flex still producing a muscle any fitness model would be envyves of. Sarah quickly fumbled to get the measuring tape around Lisa's arm.
"Wow you're 16 inches and you're even trying!" Sarah said
"Who said I'm not trying?" Lisa snapped.
Sarah put down the measuring tape.
"Your bicep was huge when you lifted those weights. I know you can be conscious of your body. But after all we've just been through, after all the amazing orgasms you've just given me. I thought you would've at least been able to show me..." Lisa looked a little upset at hurting her friend. Sarah continued.
"Besides are you not curious to see how big you can get? Think of this as your one chance to show off in front of someone who won't judge you but instead will be VERY happy to see you do it"
Lisa thought about this for a moment. Sarah was right, She wouldn't judge her. What was she scared of?
"Alright let's see how big I am then. Measure me when I say" Lisa told her.
Sarah became nervous with excitement she was going to see something big, literally.
Lisa started to flex harder this time. Causing a big muscle to rise, stretching her black sleeves. On her small frame however it seemed huge! Sarah was trying to control herself, fighting herself not to touch it.
"Ok now" Lisa said.
Sarah shot over and measured it quickly pulling the tape as tight as she could get it. Her eyes widened just by looking at the number.
"Well?" Lisa asked trying to hold the flex.
"Wow! Lisa you've got 18 inch biceps!" Sarah yelled.
Lisa seemed a little surprised, she knew it was big but never had she put a number on it before. It seemed like a massive muscle for a 18 year old girl to possess. Lisa knew that she hadn't put her all into it though . She walked across the room to some free weights.
"Lisa that's really impressive, and so hot!" Sarah said still looking at the tape measure.
Lisa picked up a couple of 100lb dumbbells.
"I can do more" Lisa said turning to face Sarah.
Sarah looked down at the massive pieces of steel in Lisa's hands. She was starting to get horny yet again.
"...more than 18 inches? That's hard to believe!" Sarah said adjusting herself to see Lisa lift yet more weights. Measuring tape tightly in hand.
"Just get ready to measure" Lisa said as she started to pump the huge weights over and over. She must've done 10 reps with each arm before she stopped.
"Ok flex now!" Sarah screamed convinced that the mass amount of iron must've given anyone a good pump.
"No I need more!" Lisa said getting angry that 100lbs weights hadn't done what was intended. Lisa placed the 100lb dumbbells down and reached for 200lbs.
"Whoa, Lisa go easy" Sarah said a little surprised she jumped up the weight so suddenly. Lisa ignored her and started to pump the weight. It was slower and the effort was clear to see, but Lisa still managed to crank out 5 reps with each arm. Sarah once again saw Lisa's leotard starting to change a shade lighter at the sleeves.
"Arrrrggghh" Lisa said annoyed that she wasn't getting as pumped as she wanted to be. Lisa had an idea and lifted her arms out by her side so they were parallel with the floor. She was still holding 400lbs total making her shoulders flare out in every direction. Sarah's already soaking wet shorts had gotten even wetter. Lisa was trying to perform a hero curl with 200lbs in each hand! She started to lift the weight painfully slowly causing her arms to swell up hugely. Her leotard sleeves were now starting to expand so much they were nearly white in colour.
Sarah was getting ready to run over and measure the massive biceps before her. But feeling as though she could cum at any minute was worried her legs might not be up to the feat. Lisa growled quietly as she felt her arms burning. She finally lifted the weights and threw them on floor behind her.
"Holy shit Lisa! You're massive!" Sarah squealed.
"Are you ready with the tape?" Lisa asked.
Sarah just nodded walking towards her pumped friend.
"Ok then" Lisa said. She slowly brought both her arms up and continued to flex slow but very hard concentrating every last bit of effort into the pose. Her body reacted by filling her already bloated arm with massive amounts of muscle. The leotard stretched further than either of them had seen it do previously. It was pale white around the biceps with tiny tears in it exposing her soft skin. Lisa roared loudly and pushed harder making blood rush into her powerful biceps.
Sarah was on the edge she thought she might blackout again for sure. Lisa's sleeves tore loudly both at once exposing her bare arms.
Sarah gasped loudly looking at something she thought was impossible. Lisa had gotten so pumped she had burst through spandex! Nothing was hiding Lisa's huge biceps anymore. Unbelievable definition and small veins zig zagging all over her bicep were clear to see. Sarah needed to touch them. She quickly measured Lisa's muscle without waiting to be told. Feeling her steel hard white hot muscle.
"Holy shit! 19.5 inches!" Sarah blurted out.
"Im... not... finished...yet" Lisa growled though gritted teeth. Her face turned to her bulging bicep willing it to grow. She poured on absolutely every bit of effort she possibly could. Sarah gasped again when she felt the tape measure still wrapped around Lisa's bicep start to reel out. She raised her hand to her mouth In surprise still focused on the reeling numbers slowly expanding. Sarah thought it was never going to stop!
"Aaaggggghhhh" Lisa felt like her arms were on fire.
"...measure...me...now..." Lisa said finally.
"OH MY GOD LISA, 21 INCHES!!!" Sarah screamed she came right there still holding on to Lisa's arm. Lisa somehow managed to hold the flex for the duration of Sarah orgasm without letting up.
Lisa swooped down and grabbed Sarah by her waist hoisting her up easily compared to the 400lbs she was just lifting. She walked Sarah over to the bench press and stood her on top of the bench. Sarah was still a little hazy from her last orgasm.
"Oh my god that was incredible. Now that's a 'real' flex" Sarah said breathlessly.
"Take off you shorts" Lisa commanded.
"What?! Why?!" Sarah said caught off guard by the demand the came from out of left field.
Lisa said looked at her for a moment.
"Well it's up to you I just thought that you might like a muscle fucking to remember" Lisa casually said.
Sarah was dumbfounded Lisa seemed to turn into a muscular sex goddess with a attitude to boot. Sarah was still recovering from her earth shattering orgasm and Lisa was offering her giant bicep to bring Sarah to another one!
"Erm ok" Sarah said excited but nervous about getting naked in front of her friend. She put her fingers inside her waist band and stopped.
"Do you need some help?" Lisa asked, but before getting an answer took either side of Sarah's shorts and tore them off her as easily as wet tissue paper.
"Oh my god!" Sarah gasped in shock as the rooms cool air gently brushed up against her neatly shaved pussy. She was now visibly dripping wet. Sarah quickly whipped off her broken hoodie. Exposing her perfect 32Gs her nipples instantly reacting to the cool air.
"No point only being half naked after what we've been through" Sarah pointed out.
Lisa froze for a second. She had to admit that Sarah had one killer body. She snapped out of it and began to smile. She knew Sarah was going to enjoy this. Lisa proceeded to rip her tattered sleeves off, completely revealing her pumped muscular arms. Sarah felt like someone could just blow her over.
"Wow" Sarah weakly said under her breath.
"So what happens now?" Sarah asked putting her hands on her hip making her look every bit the perfect woman.
Lisa didn't answer. She just smiled and grabbed a metal bar from the machine behind her. She turned back to Sarah and slowly ran her extended arm up between Sarah's legs. Making sure to run her arm along Sarah's legs, teasing her. It was having the desired effect. Sarah was feeling tingles shoot all the way through her body. She was almost shivering with pleasure. Lisa's extended arm finally reached Sarah's waiting, wet pussy lips. Sarah let another gasp escape her.
"Ok rest your hands on my shoulders" Lisa said quietly.
Sarah did as she was told. With her counter weight balanced by holding into the machine behind her Lisa lifted Sarah up with a small grunt. Sarah gasped as Lisa's shoulders ballooned to deal with the pressure, causing Sarah's fingers to separate.
"Lisa you're so big!" Sarah pointed out although for anyone it was clear to see just by looking at Lisa's body.
"Ok are you ready?" Lisa asked still supporting her friend on her fully extended arm.
"Oh my god yes!" Sarah screamed. It's was already obvious to Lisa as she could feel the wetness from Sarah's sex slowly running down her arm. Lisa made sure her bicep was in the perfect position and then started her flex. Sarah screamed immediately as she seemed to rise a little.
"HOLY SHIT!!!"
Lisa hadn't even curled all the way, nor had she put her all into it. She had decided to test the waters by starting Sarah out slowly. She was clearly enjoying it up there so Lisa thought she might as well finish her half hearted curl. Sarah felt Lisa's bicep rise further pressing hard against her pussy. Sarah had no idea how big it looked when she was on top of it but judging how much she was getting off on it thought it was at full flex. She was wrong, very wrong. Lisa grunted a little and curled again harder causing her already huge bicep to flex bigger than it was a moment ago. Sarah felt it grow beneath her and whipped her head back in surprise. Lisa's bicep was now grinding against Sarah's clitoris making her buck up and down. Lisa extended her arm again and brought it back quickly flexing hard. This made her bicep grow to 19 and a half inches making Sarah visibly rise up.
"SHIT, LISAAAAAAA!!!!!" Sarah was causing Lisa's arm to become slick with how wet she was. Lisa had to admit hearing this busty young sex goddess screaming her name made her feel pretty damn good about her body.
Lisa figured she'd turn it up a notch. She flexed again much harder than before. Still pumped from her little feat earlier, Lisa bicep hoisted Sarah another few inches.
"OOOHHHHHH FUCCCCCCCKKKKKKK!!!!!!"
At first Sarah was grinding into Lisa's arm just like she would fuck a guy. Now however Lisa's arm was so big Sarah was just perched on top motionless. She didn't have to move. Lisa's expansion was causing her to hit every pleasure spot Sarah had short of being penetrated. Lisa flexed as hard as she could maxing out at 21 inches of pure muscle to rise on her arm. Sarah felt herself rise again and even more pressure on her now throbbing pussy lips. Sarah lost control and came.
"OHHHHHHHHH YEEEEEEESSSSSSSSSSSS!!!" Sarah screamed louder than she thought capable of.
Lisa lowered her friend gently after supporting her entire body weight for what must've been 3 mins with one arm. She sat Sarah down on the bench.
"Oh fuck! Lisa...I...that was amazing, you..." Sarah started to ramble.
"You enjoyed it then?" Lisa asked with a chuckle.
Sarah ignored this. She just laid down on the bench trying to catch her breath. She was soaking wet from sweat and still completely naked. Sarah snapped out of it when she remembered what Lisa had said to her earlier, she sat up quickly.
"Lisa. Please this cant be a once in a life time thing! It's just not fair!" Sarah shouted genuinely concerned she'll never cum like that again.
Lisa was a little surprised. She had enjoyed herself and it felt amazing to get pumped up with feeling as though as was being judged.
"...maybe, with one condition" Lisa said teasingly with a smile.
"...we can never tell Claire"
END?
Let me know what you guys think. Criticism welcome. As I said I don't claim to be a writer so no need to be needlessly rude if you didn't like it!
KARMA ALWAYS WELCOME