Babysitting Adventures, Part 4 By GBM The Kelly sisters flex up I turned my head to one side. There lay Mega Titan, beaten and unconscious. I glanced to the other side. Super Flex was spread eagle and out cold. The two largest, strongest men in the world had been broken. I looked ahead at the two girls who had delivered the beatings and humiliation. Paige, who was 5 years old with shoulder length red hair and sparkling green eyes and her big sister Hannah, with long light brown hair and deep blue eyes, who was 8. Paige stood proudly at 3 foot 3 inches in her small yellow bikini top and yellow panties. Hannah was 3 foot 9 and stood confidently in her barely there pink bikini top and pink shorts. Oh, and did I mention the huge, super strong muscles all over their body? They were bigger and stronger than the two men they had destroyed. Much bigger and stronger. Now they looked at each other, giggling like the girls they were, wanting to see who could flex up bigger muscles. Considering what I had already seen, I couldn't even imagine what they were capable of. They both looked at me with their beauty contest smiles. It was up to me to call out the muscles to flex and to judge the winner. Good thing they liked me. I looked at the measuring device in my hand and fiddled with the settings. "Uh, OK girls, why don't we start with your calves." Paige smiled and turned to one side. Her small size only accentuated her massive muscles. Her broad shoulders and volleyball sized pecs flowed perfectly down into a thin waistline with a set of ripped abs and then back out into thick, massive legs. "OK Justin, my muscles could use a good stretch!" With that Paige lifted her dainty right foot up on her toes and caused her already large calf to bulge and flex with incredible density. It started out the size of a cantaloupe, pushed to the size of a volleyball and then reached basketball size in moments, quickly taking up all of the available room on her leg! My reading moved from 16 inches to 24 inches to 30 inches to 34 inches! Her large calf bulged with incredible size and shape! She moved her foot up and down slowly, powering more mass into her mighty muscle! 36 inches, 38 inches! And with seemingly no more room available her calf pushed to 40 inches around! Her calf was bigger around than her height! "Ooooooo, that feels good! My calf is huge!" Hannah looked down at Paige's gigantic calf and smiled. "My turn!" She placed her hands on her hips, placed her small foot down and lifted her heel slowly off the floor. She shook her massive calf muscle and tensed. The gigantic muscle that exploded outward made me lean back. Her calf was a 32 inch basketball sized mass of female muscle with her first flex! Pushing down on her toes, Hannah willed more size into her calf, pushing it out to 34 inches, then 36 inches, then 38 inches and finally up to 40 inches! Hannah had flexed her calf up to match Paige! Their calves were bigger around than my chest! And they were young girls! I looked at both massive muscles and shook my head. That type of muscle expansion should be impossible, but these two young girls were changing my view on what was possible with every passing minute. Hannah giggled. "Yeah, Paige, flexing up my muscle makes me feel stronger and more powerful too!" Paige smiled and looked down at Hannah's calf. She then flexed down harder and her calf expanded once again! It moved up to 42 inches, then 44 inches, up to 46 inches! Hannah quickly followed suit, pushing her calf up to 43 inches, then 46 inches! Twin boulders of little girl might nearly 4 feet around! Good grief! They pulsed and twitched with unearthly power. Veins pushed forth, every muscle fiber was visible. Paige let out a small grunt and pushed her calf to 48 inches, then 50 inches, then 52 inches, then 54 inches! Hannah quickly followed suit and then pushed bigger! She flexed her gigantic calf to 56 inches, 58 inches, then 60 inches! 5 impossible feet around! Paige wrinkled her nose and flexed down herself. Her calf quickly reached 56 inches, then 58 and finally 60 inches! Their calves were nearing the size of beach balls, riding up their hamstrings and edging near the floor! Incredible! And onward they grew! 63 inches, 66 inches, 69 inches, 72 inches! 6 feet around! They were matching each other, inch for inch! Twin steel balls of shredded might! 75 inches, 78 inches, 81 inches, 84 inches! 7 feet around each! Their calves pressed out over two feet away from their legs! Both girls giggled as my voice was shaking from the readings! I brought the device down to my side. "Look girls, I think this one may be a tie." Hannah snickered. "OK, but maybe you should see who's muscle is harder!" Paige tittered as I kneeled down and reached out with trembling hands. I placed my left hand on Paige's calf, feeling the warmth and power. I placed my right hand on Hannah's calf and rubbed my fingers over the striations and detailed muscle fibers. The girls then looked at each other and flexed their calves up another six inches! 90 inches around! They weren't done! My fingers spread apart under the growth! And then they pressed their calves bigger! 93 inches, 96 inches! 8 feet around! My arms were being pushed back against the onslaught of young girl power! The girls were tittering at my scared look, causing them to press their calves even bigger! 99 inches, 102 inches, 105 inches, 108 inches! 9 feet around! Nearly three feet away from their legs! My breath was running short, I coughed, lost my balance and fell onto my butt under the sheer volume of their super calves! They both laughed. I looked up at them. "Uh, girls, your calves are so hard that there is no way I could make a dent in them. And they're so big it's incredible!" Hannah laughed. "Well, OK. Since Paige and I both have super hard, super big calf muscles, I guess we'll call this one a tie." Paige smiled and nodded her head in agreement and both of them released their flex. I was beginning to wonder if they just wanted to flex up big for me. I also wondered if they could have flexed bigger. I took in a deep breath. "OK girls, let's flex up thighs this time." Paige started again, putting her right thigh out and flexing down hard. The muscles crackled from the expansion. Huge cords of thick young girl beef started layering on top of each other, spreading outward quickly to incredible proportions. I looked back down at the display. 40 inches quickly zipped to 44 inches, then 48 inches. Four feet around in moments! Paige smiled. "Look at my massive muscles! I'm ripped, pumped and super hard! Just watch my mega muscles grow!" Paige sure did gain confidence when she flexed up her muscles. And I sure was watching. Her massive thigh jumped to 54 inches, then 60 inches, then 66 inches, then up to 72 inches! 6 feet around of Super Paige power. She was flexing so hard and fast that I could only read off every six inches of growth! She stopped her flex for the moment when I yelled out 6 feet. Hannah giggled and jumped in. "My turn! That looks so cool, Paige!" Paige pressed her lower lip out and pouted. "OK, but don't think I'm done! I flexed up bigger than this when I was crushing Super Flex!" Hannah smiled and her eyes twinkled. She was having a blast. She brought her already large leg up, bent it at the knee and lightly placed her pointed toes down until they touched the ground. She then jiggled the mass of young girl muscle back and forth in a rhythmic display. My head turned from side to side, following the mighty muscles. Hannah was watching me too and giggled at how she could mesmerize me with her muscles. "If you think that was cool, watch this!" With a sudden stop, she flexed her leg and ripped, pounding muscles exploded forth! 64 inches around from her first flex! Hannah then repeated the movement, swinging the ever increasing mass of mighty muscle back and forth. She stopped again, causing her thigh to crackle with authority and push out to 78 inches! This time she held her flex and bore down, willing her super muscles to grind outward. Every muscle fiber was clearly seen merging together into one gigantic mound of little girl dynamite! 82 inches, 86 inches, 91 inches, 95 inches, 100 inches! Triple digits! Each muscle group separated and grew out to fantastic proportions, throbbing with power, pulsing with mighty veins, pushing her thigh over two feet away from her body! My trembling voice caused Hannah to stop her growth and giggle. "Do you like what you see Justin? My muscles are big, round and full of power! Super power!" Before I could react, Paige jumped in. "Wait! If you stopped, then it's my turn! I can flex that big too! Watch me Justin!" Hannah continued to smile at me as I flushed. She relaxed her flex slightly, causing the muscle to recede a little, allowing her sister a chance to flex. I turned my attention back to Paige, who was mirroring her sister's posing style, placing her dainty toes on the ground, placing her hands on her hips and then flexing down hard. Once again, her thigh pushed out passed the limits of reality with one flex! I read off 74 inches! Over six feet around of incredibly massive muscles on a 5 year old girl standing 3 foot 3! Her thigh hung ominously over her knee with a gigantic tear drop. The side of her thigh pushed nearly two feet away from her leg as her body filled up all of the available space around her leg with palpitating vein engorged super muscles! And then, with a little girl growl, she flexed down harder! Her muscles erupted off of her leg with reckless abandon! Once again I had a hard time keeping up with the readings as my body quivered with disbelief. 78 inches, 82 inches, 87 inches, 93 inches, 97 inches, 102 inches, 108 inches! 9 feet around of the biggest, strongest, hardest muscle ever flexed! Paige purred with delight! "Oh yeah, that's what I'm talking about! My super muscles are the biggest ever! Feel my power, Justin!" I let out another nervous cough. Hannah smiled at me and brought her mighty thigh forward once again. "Not yet, Paige! Let's see if I can flex bigger!" Paige looked over at her big sister and smiled. "OK! Let's flex at the same time!" My jaw dropped. I wasn't certain I could take this, much less keep up, but I clearly didn't have much choice. How big could these two girls flex? Figuring I'd better try, I aimed the device at Hannah and read off the result of her earth shattering initial flex. 94 inches! Good grief! She had brought forth that much muscle in moments! She quickly bore down and cranked out more mind blowing muscle. 98 inches, 102 inches, 106 inches, 108 inches! She had reached Paige's size! And then just to even things out she flexed her other thigh and it quickly expanded with incredible muscle up to match her right thigh! Two massive, throbbing mounds of young girl might, 9 feet around! And just as I announced that size, Paige quickly did the same, blowing her other thigh to the same mind numbing dimensions. Twin mega thighs the size of half barrels backed by massive hamstrings! How could two little girls possibly flex up this much muscle? And they weren't done yet! Their muscles pulsed once again and became even bigger! 112 inches, 116 inches, 120 inches! 10 feet around! 40 feet of dense, ripped, awe inspiring masses of young girl power! I couldn't believe it! I watched on as their muscles multiplied and pressed outward! 124 inches, 128 inches, 132 inches! 11 feet around! The rest of their bodies surged a little with the humongous thigh growth. Both girls started giggling again, standing with their little fists on their hips, willing impossible muscle growth forward! 136 inches, 140 inches, 144 inches! Each thigh was now 12 feet around! The two thigh bellies were now blasting out over 3 feet away from their muscular bodies, blanketing their knees from view, riding up their hips! I shook my head! Hannah grinned at me. "This is so cool! I feel stronger every second! Our muscles are getting denser as they get bigger! That means our muscles are getting stronger! Ha-ha-ha! Paige and I could squat an aircraft carrier now!" I looked up from my readings. An aircraft carrier? Surely she wasn't serious. I let out a soft sigh. At this point, I wouldn't doubt it. And the other thing I couldn't believe was that they weren't done! I looked at the readings as the girls hummed with pleasure. Two angels with the muscles of the gods! 148 inches, 152 inches, 156 inches, 160 inches, 164 inches, 168 inches! Each leg was now 14 mind blowing feet around! I coughed out the numbers and the girls giggled in response. Each muscle fiber now looked gigantic! So much power was being unleashed that small discharges of energy were popping around their titanic muscles! And still they pushed bigger! 170 inches, 172 inches, 174 inches, 176 inches, 178 inches, 180 inches! 15 feet of pure young girl super muscles! 30 feet around of mega powered ultra thighs each! 60 feet around among them! Their thighs pressed out 4 feet away from their bodies! And they both stood under 4 feet tall! What a sight! These young girls held incredible capabilities! I could finally take no more! "Girls! This has to be another tie! I can't see your feet anymore! You two are unbelievable!" Both girls smiled and let out a small sigh. Paige looked up at her big sister! "I can flex up with my big sister! I can feel the super strength too! No super hero or super villain will stand a chance against us!" Hannah looked at me. "And with these leg muscles, we could run around the world in minutes!" I was about to say something, but caught myself. It was best not to challenge these two. They slowly reduced their thigh muscles down to double bodybuilding size and looked up at me. Hannah smiled. "What's next?" I let out a soft breath. "OK girls, this time let's see what you can really do. I saw Paige flex up a chest bigger than I could have conceived to crush Super Flex. Let's see a battle of the chests! Paige and Hannah smiled at each other. Hannah looked at me. "OK Justin! But this time we're not stopping!" Paige nodded her head in agreement and giggled. She then pulsed her volleyball sized pecs up and down, making me blush bright. Hannah backed up a few steps and smiled at me. "OK girls, I'll call out the sizes of your, uh bust, or uh your chest size, which is all the way around your chest and your back." Both girls giggled again at my apprehension. Clearing my throat, I continued. "You two might as well flex together. If one girl gets bigger I'll yell out their name." Both girls nodded their head in agreement. Hannah smiled at me and repeated Paige's pec bounce with twin balls already the size of basketballs, knowing it made me nervous. She laughed at me as I took a few steps back. I headed toward the two fallen superheroes to get a better view. This was going to be interesting. Paige and Hannah had put a little distance between them and now looked at each other, barely containing their laughter. They then nodded their heads and started to expand their already muscle engorged chests. I watched as both Paige and Hannah quickly piled on muscles to their throbbing chests of steel. Their chests had expanded to 100 inches around from their initial flex! Twin basketballs expanded bigger growing toward twin beach balls! I watched the reading sail upward, 105 inches, 110 inches, 115 inches, 120 inches, 10 feet around in moments! Their pecs were already rising up toward their noses, out passed their massive arms and down their chiseled stomachs. Thick, ripped slabs of young girl might continued to surge and grow! 140 inches, 150 inches, 160 inches, 170 inches, 180 inches! 15 feet around! Each pectoral was now over two feet across and 78 inches around, over 6 feet! Their little bodies had flexed up a wall of chest four feet across! Their chests were wider than they were tall. And I knew they were just getting started. Hannah spoke up. "Wow! This feels so good! The tingling of power, itching to get out is awesome!" Paige giggled. "Wait until we get REALLY big! I want to get bigger than before. Bigger than anything!" Watching their huge pecs move up and down with each breath I couldn't imagine how big they could get. Their large chests then shuddered and started to grow again! 190 inches, 200 inches, 210 inches, 220 inches, 230 inches, 240 inches! 20 feet around! Each pec surged up to four feet tall. Their walls of super chest were now eight feet wide and Paige's chest was down to her feet, with Hannah's getting closer! I could hear them hum with pleasure as they continued to power more muscle into their gigantic chests! 250 inches, 260 inches, 270 inches, 280 inches, 290 inches, 300 inches! Another five feet in seconds! 25 feet around! Their super chests were sporting energy packing veins, incredible striations and deep pits separating the huge slabs of muscles stacking themselves on top of each other! Their pecs were 5 feet high and were starting to press into the concrete with a low crunching noise. The cleavage was over four feet thick! Hannah piped up. "Paige, our chests are already starting to get close. Let's take a few steps back." Paige apparently agreed as I could no longer see either of their faces. They slowly stepped back and to the side, holding their massive chests up in the air like four gigantic titanium filled balloons. This gave me a chance to see how the rest of their bodies had expanded again to help accommodate the incredible pecs of steel! Their legs were like tree trunks, their shoulders were huge masses of muscle, pressing up near their ears and their backs looked over four feet wide, bristling with humongous chunks of young girl muscle! Wow, what a sight! As soon as they stopped backing up, they continued to power more muscle into their chests! I pointed the measuring device at one girl and then the next, reading off the results and shaking my head in disbelief. 310 inches around, 320 inches, 330 inches, 340 inches, 350 inches, 360 inches! 30 feet around! Their chests once again started to crunch into the concrete and metal floor as if the floor were made of soft clay. Their super muscles were harder than anything on earth! And onward they grew! 370 inches, 380 inches, 390 inches, 400 inches, 410 inches, 420 inches, 440 inches, 450 inches, 460 inches, 470 inches, 480 inches! 40 feet around! Each pec on each girl was now well over eight feet high! Their chests were at least 17 feet across! Hannah giggled. "Oh baby! Feel the power! Feel the strength! We're unstoppable!" Paige tee-hee'd a "Yeah!" I had to keep from passing out! I yelled at them to back up a little more as their chests were once again getting close! Their mighty chests heaved up in the air like four weather balloons as they backed up! Their incredible legs pulsed and surged into bigger blocks of ripped muscle with every step. Their backs were now over six feet wide! Good grief! Their arms hung away from their bodies like sides of beef, with massive triceps jutting out over three feet thick! When they stopped backing up they brought their tremendous chests of doom down with an earth shaking crash, destroying the ground below them! They were now leaning back a little, looking to press their chests toward the sky! And just as they set their positions, their gigantic chests solidified into balls of pure power, crackling with super energy! Huge veins pushed out all over their pecs! And then they started stacking muscles on top of their ripped, striated super muscles! I licked my lips and tried to keep up with the readings. 490 inches, 500 inches, 510 inches, 520 inches, 530 inches, 540 inches! 45 feet around! Their pectorals were 10 feet tall! They had to be 350 inches around each! They were about to blow passed Paige's previous flex! 550 inches, 560 inches, 570 inches, 580 inches, 590 inches, 600 inches! Yikes! 50 feet around! Paige laughed. "50 feet around! I feel sooooo powerful! WOW!" Hannah followed suit, growling with ecstasy! "This feels unbelievable! Let's keep going!" I blinked in disbelief. They weren't done? I was going to call for a tie again, but they didn't give me the opportunity as their chests surged forward! Impossible! 610 inches, 620 inches, 630 inches, 640 inches, 650 inches, 660 inches, 670 inches, 680 inches, 690 inches, 700 inches, 710 inches, 720 inches! I yelled out 60 feet around. This only caused the girls to laugh! "Girls! Please stop! This has to be another tie!" Both girls yelled back. "No way! We're going to keep going!" Driven to near hysterics, I calmed myself down, took a breath and yelled back. "Well, then you'll have to back up some more. Your pecs are now 13 feet high and you're both over 14 feet thick!" Following my direction to back up, they did so, turning a little once again, giving me more of a side view. Holy crap! Their backs had to be near 100 inches wide, that's over 8 feet! Their legs were torrents of gigantic muscles, pulsing and surging as they walked! And their triceps bulged and flowed, exploding with unbelievable mass 50 inches thick! Paige's red hair rested on gigantic shoulders and traps, while Hannah's light brown hair flowed up around her gargantuan back! Paige's body was mind-blowing, and Hannah's was god-like! The thought of how strong these two girls had to be now made me weak in the knees. But I had no time to sit down as the two young girls were now set and had already started to expand their now legendary muscles bigger! I pointed the device one way and then the next, croaking out the readings. 730 inches, 740 inches, 750 inches, 760 inches, 770 inches, 780 inches, 790 inches, 800 inches, 810 inches, 820 inches, 830 inches, 840 inches! 70 feet around! Each pec was now over 15 feet tall! 560 inches around! Each! And they weren't even slowing down. As soon as Paige would surge ahead, Hannah would do the same. Where was this going to end? Apparently not soon as the humongous balls of super muscles pushed bigger! 850 inches around, 860 inches, 870 inches, 880 inches, 890 inches, 900 inches, 910 inches, 920 inches, 930 inches, 940 inches, 950 inches, 960 inches! 80 feet! 18 feet tall of pumped, ripped, throbbing raw young girl might! Hannah gasped. "I feel like I could bench press a mountain! You give up yet Paige?" From the other side of the room Paige responded with a "No way! My chest is going to be bigger than a semi!" I watched nervously as this simple exchange resulted in the gigantic palpitating masses of young girl muscles to continue to multiply and expand! Sparks of energy were now discharging all around them as they must have been unleashing unthinkable power! The tops were barely visible and had to be at their end! And just like that, Paige's yellow top popped off her gigantic pectorals, and an instant later Hannah's pink top did the same! Their nipples were now so high up on their chest that I couldn't see them anyway. It still made me blush a little as I brought my head down to call out the impossible readings. 970 inches around, 980 inches, 990 inches, 1000 inches around! One thousand inches! I could hardly believe it, but the girls hardly seemed to notice as their expansion continued unabated. 1010 inches, 1020 inches, 1030 inches, 1040 inches, 1050 inches, 1060 inches, 1070 inches, 1080 inches! 90 feet around! Their chests were now over 20 feet high and 40 feet across! The girls quickly exchanged a "done yet" and a "no way" and barely gave me a chance to catch my breath as they continued their impossible contest. 1090 inches were quickly displayed on the device. How could they possibly flex any bigger? Their chests now dominated everything else in the basement and would soon be pushing things out of the way. They had both taken a few more steps back and were getting near the walls at opposite sides of the basement! The ruined gym was rolled up against the wall opposite of me and now looked small by comparison! I looked down again, 1120 inches! Holy crap! 1130 inches, 1140 inches, 1150 inches, 1160 inches, 1170 inches, 1180 inches, 1190 inches, 1200 inches. 100 ever loving feet around! I wanted to yell for them to stop, but knew it was to no avail at this point. We were all going to see where this was going to end, or watch the destruction of everything! Hannah cried out. "I can't believe how strong I feel! And I'm not done yet!" Paige responded with equal enthusiasm. "Not unless I get there first!" The energy crackling around the girls was intensifying! Their power had to be off the scales! And they truly weren't done. I took a step back and with shaking hands continued to read out the sizes. I couldn't believe it! Their chests were getting bigger even faster now! Nearly two feet every second! 1220 inches, 1240 inches, 1260 inches, 1280 inches, 1300 inches, 1320 inches, 1340 inches, 1360 inches, 1380 inches, 1400 inches, 1420 inches, 1440 inches! 120 feet around! Their pecs were now 28 ever loving feet high! 88 feet around each! 56 feet across! I could no longer see the girls faces, only their massive chests, which were looking more like zeppelins than pectorals. Huge, pink, vein engorged, super striated, muscle laden zeppelins! Un-friggin believable! They were tearing up the concrete and ground and anything else in front of them and to the sides with a low rumbling grinding and screeching sound. If I wasn't watching it unfold, I wouldn't believe it. The girls were now grunting with stress and pleasure, willing more muscle into their already overgrown chests. Hannah was yelling out "Bigger!" While Paige was yelling out "Stronger!" With the girls in their own world I continued to read out the results, but I wasn't so sure that they were listening much anymore. 1460 inches around soon became 1480 inches around, then 1500 inches, then 1520 inches, 1540 inches, 1560 inches, 1580 inches, 1600 inches, 1620 inches, 1640 inches, 1660 inches, 1680 inches! 140 feet around! I'm guessing that their chest were now close to 100 times bigger than when I showed up this morning! What massive potential these two had! And it was now being displayed in unthinkable glory! The super energy was now cascading down their pecs as they unleashed their incredible power! And still they pushed their chests bigger! The basement was filling up! Their chests were starting to block out the lighting. Good thing I was standing in front of the kitchen area that was recessed from the rest of the basement, because if they didn't stop soon they were on track to destroy the entire basement! And looking at the readings, they didn't seem to care! 1700 inches, 1720 inches, 1740 inches, 1760 inches, 1780 inches, 1800 inches, 1820 inches, 1840 inches, 1860 inches, 1880 inches, 1900 inches, 1920 inches, 1940 inches, 1960 inches around! 160 unbelievable feet of earth shattering might! Their beyond massive pectorals were now 38 feet high! Each pectoral had to be nearly 120 feet around! They were running out of room in this massive basement! The crunching and tearing up of the floor, tables and fixtures continued as there was nothing that could hope to stand in the way of these four pectorals of doom! They were approaching the side walls and were now completely dominating my view! The ceiling was now only a few feet away! I gasped and once again yelled at them to stop! This time they didn't even respond! Could they even hear me anymore? The super energy was now nearly exploding around their chests with bright flashes of blue and pink! I stepped back as far as I could and looked at the device. Their chests were still getting bigger! Oh no! The enormity of their chest was outside of anything that could have been conceived! And they were getting bigger still! 1980 inches around! Then 2000 inches! TWO THOUSAND INCHES! If I wasn't watching it in front of me I would not have believed it! Each slab of super muscle was now over two feet thick! The deep pits separating each super slab looked big enough for me to climb into! The muscle fibers were so big I thought I was looking under a microscope! How could they be doing this? And they weren't done yet! 2010 inches around soon registered on the device, then 2020 inches, then 2040 inches, 2060 inches, 2080 inches, 2100 inches, 2120 inches, 2140 inches, 2160 inches around! 180 feet around! Their pectorals were 43 feet high and were now pressing up against the ceiling! The rest of the house was slowly being ripped off the foundation with more loud creaking and moaning! Their super chests were getting near the sides of the foundation, since their chests were now 96 feet across! NINEY-SIX FEET! The device was starting to blink on and off as their chests were so large and were digging into the ground and pressing up against the ceiling that a reading must be getting hard to register! But through all of this commotion, the girls didn't stop! There is no way anyone could have every dreamed this to be possible! Two young girls at 5 and 8 flexing up pectorals nearly 100 feet across! And they were almost touching each other too! They had backed themselves up to the walls and their chests were only feet away from each other! I shook my head, trying to stay focussed. If they didn't stop soon, they were going to break through the side walls and crush me and the two super heroes still unconscious in front of me! The device blinked on and off as my eyes got even wider! Their chests pushed onward to 2180 inches around! How could they be getting bigger? 2200 inches around! 2220 inches around! The house itself was now being pushed away from the ground, supported by four of the biggest muscles ever flexed in the history of the universe! A herd of elephant could now fit inside their gargantuan pectorals! Dinosaurs were no match to these two young girls! 2240 inches soon became 2260 inches! I could see daylight reach its way in as the house rose higher and the girls chests continued to surge bigger! 2280 inches, 2300 inches around! The entire house was now starting to lean a little to one side! And onward their chests grew! The energy flashing off their pectorals was like a flood against their humongous muscles that just wouldn't stop getting bigger! I started to hear more cracking as their chests now were pushing against the side walls! And the reading continued to increase! 2320 inches around! 2340 inches around! The entire house began to tilt, having been lifted 10 feet above the foundation! As their chests got bigger, the house began to slide off their chests and into the back yard with small booming sounds! At 2360 inches the house had slid nearly half way off their chests! Their chests were acting like four super charged jacks! At 2380 inches, the house slid further off their chest! And finally at 2400 inches, 200 inconceivable feet around, over 48 feet high of super mega pectorals, which now had to be 150 feet around each, the entire house crashed into the back yard, exposing the sun above the girls, which must have brought them back to reality. They finally brought their growth to a stop! Thank God! Their chests were now only a few feet from the two superheroes and there was no way I was going to try and drag them out of the way! I thought about the numbers again. The largest man has a chest near 80 inches around and these two girls had flexed up chests 30 times that! Unreal! I finally sat down, exhausted from the ordeal. Was that their limit? Were they truly done? At this point it didn't matter as I watched with fascination as their chests slowly reduced back down, exposing the destruction all around the basement. Everything outside of the kitchen was crushed flat, including the entire rolled up gym! How could their chests possibly be that hard! As their chest further reduced down I breathed a sigh of relief. I looked over at a table in the gym. In looking for the right colors for their tops I had placed a couple more down. A black one and a blue one. Good thing, as the girls had finished reducing their chests and were walking through the crater and back toward me. Their bodies were still a geography of ferocious muscles, flexing and flowing with every step. Their pectorals were back to the size of basketballs and rose and fell with authority with each breath. Their massive arms swung to the sides with confidence. Smiles of young girl innocence flashed across their beautiful faces. Paige spoke first! "That was so cool! I felt like I could have moved the entire earth if I had wanted! Hannah nodded her head. "Yeah! I kept feeling stronger and stronger as I got bigger! What a rush! And look at the house! We pressed the whole house with our chests!" They looked down at me and giggled. I must have looked exhausted. They then glanced at each other. Paige tilted her pretty head to one side. "So, who won?" They both looked back at me and batted their eyes like two innocent young girls. I let out a sigh. "I'm not sure. The device was having a hard time reading your chests since they had sunk into the ground and were pressing against the side walls. I'm afraid it must have been a tie again. But at the end, your chests were over 200 feet around!" Both girls lit up with that announcement. They turned to each other and exchanged a high five. Their huge muscles dancing and flexing in perfect harmony. Hannah turned back toward me. "OK, Justin, what's next?" I groaned. Next? I was whipped. Did I really want to see any more right now? I got up slowly and walked over to the table and grabbed the bras. I turned toward the girls and handed the blue one to Paige and the black one to Hannah. "Why don't you two put these on first." Both girls looked down at their chests and giggled. They didn't even notice the fact that they had destroyed their bras. They took them from me and slipped them on, pulling them around their still super massive chests with a rubbery snap. I looked down at them and smiled. "OK girls, only one more muscle to flex. But this time I want to do it a little different. Since you two seem to be able to flex as big as you want with no limit, how about we see who can flex their biceps up to a certain level the fastest." Both girls laughed. This was still fun to them. Hannah winked at me. She was now so sure of herself that I was forgetting that she was only eight years old! Resetting the controller I looked back at the girls. They had set themselves and looked ready to go. Their insanely muscular bodies belayed their young age. Their muscular legs bulged to sizes bigger than any bodybuilder with cut, vein engorged slabs of might, their abs were littered with deep bumps and grooves that gave the appearance of something like a 50 pack, their pecs were back to near basketball size, striated and bulging, their backs were as wide as barn doors, and their shoulders had more size than a football player with shoulder pads. They held their large, muscle engorged arms to the side. These two young girls were muscle perfection on frames under four feet tall! I let out a breath, trying to feed some oxygen to my head to regain some focus. I smiled at the two mega muscular girls. "OK girls, go ahead and bring up your right arm into a bicep flex and I'll take an initial reading." Hannah brought her arm up first, tensed her small hand into a fist and slowly brought her taught forearm arm, causing her melon sized bicep to expand quickly in every direction and grow into a gigantic basketball sized mass with small veins pulsing to the surface. I looked at the reading. 51 inches. A small eight year old girl had just casually flexed up a bicep twice as big as any bodybuilder without even trying! She flashed me her award winning smile. I shook my head, still unable to fully accept the fact that these two young girls were now the most muscular, strongest and most powerful beings on earth. "Uh, OK Hannah, that's about 51 inches around. Paige, it's your turn." Paige looked over at her sister and smiled. "I can do that too!" She then brought her arm up, wiggled her fingers and formed a fist at the same time she brought her own thick forearm up to vertical. Her bicep pushed up from softball to volleyball in moments and quickly up to a huge basketball shaped mass of young girl might. I looked at the reading. 50 inches! She had matched her sister's incredible feat nearly as quickly. I stammered out my response, still marveling at Paige's power. "Wow, your bicep is 50 inches! You two are simply incredible." Both girls snickered again. Hannah battered her eye lashes. "What? These little ol' things? We aren't even trying yet. These are just our messing around biceps. We're ready to rock and roll!" Paige nodded her head. "Yeah! I'm ready to flex up big!" Taking a deep breath, I held the device on Paige and looked at my watch. "OK Paige. You can go first. I want you to flex up until you reach 100 inches around. I'll yell out the numbers and tell you when to stop. Ready?" Paige smiled and twisted her small body back and forth, her small tongue sticking out a bit to the side. I shook my head. Her face and actions were still that of a pretty 5 year old girl. But it didn't take much more of a glance to take in her huge, pulsing muscles and realize that this was no ordinary 5 year old girl. This was a super kindergartner! Paige pushed her lip out. "I'm ready!" Exhaling, I looked back down at the readings and my watch. "Go!" And just like that I heard Paige let out a small groan and her bicep erupted forth. 60 inches, 70 inches, 80 inches, 90 inches! I yelled out 100 inches and looked at my watch. 10 seconds! I looked back up. There was that huge bicep staring me in the face. Over 8 feet around of huge bicep perfection on the frame of a 3 foot 3 inch girl. Her bicep was almost as tall as she was! What an incredible sight! Small veins rapped their way all the way up to the top. Her muscle fibers shined. "That took 10 second! Good job Paige!" Paige relaxed her flex and shook her arm. "That felt cool! I can really feel the power when I flex down so hard! Hannah and I are so super!" Hannah smiled. Not only was she thrilled with her mighty muscles, but she was proud of her little sister. What incredible super heroes these two were going to be. Kind, loving and devastatingly powerful! I fixed the measuring device on Hannah who had casually held her flex at 51 inches. "OK Hannah, your turn, go!" And just as quick as her little sister, the readings raced upward. 60 inches, 70 inches, 80 inches, 90 inches, 100 inches! I looked at the watch. 9 seconds! I brought my head up and marveled at the super bicep attached to the beautiful little 8 year old girl. At 3 foot 9 she was taller than Paige, and her bicep looked a little thicker, and at nearly 3 feet tall her bicep looked impossibly massive. Hannah held the flex for a moment, winked at me and released her flex. "I win! That felt great! All of this power inside of me just can't wait to get out!" Paige looked a little disappointed. "Oh, pooh! Maybe I could grow faster." I chuckled. "Well, let's keep going. You two can probably flex up much bigger than that. This time we'll let Hannah go first. Why don't you see if you can flex it up to 200 inches? That's over 16 feet around! Nobody has ever flexed that big before, including either of you." Hannah gave me a toothy smile. "Oh yeah? Well just watch! Let me bring my bicep back up again!" I looked up and Hannah quickly brought her bicep back up to 50 inches around, covering part of her shoulder and not letting her forearm go much past vertical. The 50 inch bicep was incredible, especially against her short height. She simply exuded power and grace. I licked my lips. "Uh, OK. Ready, set, go!" I quickly looked down, heard a pleasurable little girl moan and watched as the readings moved even faster than before! 65 inches, 80 inches, 95 inches, 110 inches, 125 inches, 140 inches, 155 inches, 170 inches, 185 inches, 200 inches! Wow! What a girl. I looked at the watch. "That was incredible, Hannah, 17 seconds!" I looked back up and my jaw dropped. I know that I shouldn't be easily impressed anymore with these two, but the sight of bicep over 16 feet around attached to a 3 foot 9, 8 year old beauty queen was still beyond my comprehension. The damn thing was well over 6 feet tall, and towered over 8 feet above the floor! Hannah giggled at my astonishment. "Do you like my huge bicep? I can feel the power it possesses! I could curl a battleship with one arm! The Evil Brigade had better watch out!" With that thought, Hannah released her flex and her bicep reduced back down. What an incredible power. To be able to flex up gigantic muscles, to lift impossibly heavy weights and then be able to reduce back down far enough to walk around like little super heavy weight bodybuilders. Her barely covered striated chest still moved up and down a little with every breath, hinting at the devastating power it held. Paige spoke up, snapping me back to the competition at hand. "Is it my turn yet? I want to flex up a muscle that big too!" I smiled at Paige. What a little firecracker. Boy are her parents in for a surprise. She was a bundle of energy before, now how are they going to contain her? I nodded my head and Paige wiggled her body back and forth, bringing her bicep back up to her casual, eye-popping circumference of 50 inches in moments. Her red hair shined against her massive shoulder and a few strands stuck to her pumped up bicep. I pointed the device at her bicep, looked at my watch and shouted out ready, go! Faster than the price at a gas pump the bicep numbers climbed upward. 80 inches in moments! 95 inches, 115 inches, 130 inches, 148 inches, 176 inches, 186 inches, 200 inches! Holy cow! She did it. And she did it in 16 seconds! Wow! I looked up after announcing 16 seconds and Paige gave me her beauty contest smile. "Look at me Justin! Isn't my big bicep great! Come over here and feel it! I'll bet it's really hard!" I walked up to Paige and marveled at the size. I had to look up to see the peak that was 8 feet above the floor! I rubbed my hands along the side and felt the veins pulsing super power into her gigantic muscles. Not only was it tall, it was pretty wide too. I reached my arms around her bicep and effectively gave it a hug. Wow. It was like hugging warm marble. I squeezed down, but wound up cracking my bones! My beating heart pressed against her pulsing bicep was definitely a unique experience! I relaxed and took a step back. Paige looked up at me and giggled. "Pretty cool, huh? I really like being this big and strong! Nobody's going to tease me again!" Relaxing her flex, her bicep slowly went back down. I stepped back and picked up the device again. "Well, since Paige won that round, I guess Paige should go first this time. Let's keep it going. How about 400 inches around? Think you two can flex up 33 foot biceps?" Both girls shouted out their acknowledgment. Paige shook her arm quickly and then brought her bicep back up to 50 inches. I shook my head at the prospects. Just how big were we going to get? Anxious to find out I said go and the numbers once again sailed upward far faster than I could have imagined. With a little girl grunt her bicep exploded upward to 70 inches, 90 inches, 110 inches, 130 inches, 150 inches, 170 inches, 195 inches, 215 inches, 235 inches, 255 inches, 275 inches, 300 inches! Incredible! 320 inches, 345 inches, 365 inches, 380 inches, 400 inches. I cried out the goal size and looked at my watch. 30 seconds! Wow! I took my eyes off the watch and looked up at Paige's bicep. And up. And up! I couldn't believe it. Readings were once thing, but to witness her bicep was another. Her bicep had to be over 15 feet high! Well over four times her height! The rest of her muscles had surged a little bigger as her chest was pushing up near her chin with every breath. Paige teased me. "How about them apples! And Super Flex thought his 80 inch bicep was big! Look at mine! It's, uh," I finished her thought. "Five times his size! That must make you Super Duper Flex Paige!" Paige giggled. "Yeah! Super Duper Flex Paige! He better do what I tell him to do now, or my super muscles will finish him off!" Still giggling, Paige released her flex and her bicep reduced back down once again. I looked over at Hannah who was waiting patiently and held her hands on her hips. Paige was a cute dynamo, but Hannah looked much older. She simply oozed power, confidence and grace. Like a movie star, she could knock someone for a loop with a casual flex and an intimate glance. This was no ordinary 8 year old. She gave me a relaxed smile, tossed her long brown hair over her shoulder and brought her bicep back up where it quickly zipped up to 50 inches once again. All of her muscles pulsed and solidified into curvy rock hard blocks of power from her cute little feet to her bulging calves to her sweeping thighs to her narrow but ripped waist to her boulder sized pecs up to her basketball bicep on one arm and her huge horse shoe tricep on her other. Her thong bottom and miniature bra barely covered any of her devastating physique. She batted her eyes and wiggled her nose. I simply looked on, unable to accept that this was the perky 8 year old girl I saw this morning. Hannah raised her head up and smirked at me. "Ready Justin?" I shook my head to bring myself around. I had to remind myself that this was still an 8 year old girl. I set the device and looked at my watch. "Yeah. OK. Ready, go!" Once again I had a hard time keeping up. The readings raced their way forward to 80 inches in moments, 100 inches quickly followed. I wanted to glance up to watch, but figured I had better keep track instead. 130 inches, 150 inches, 180 inches, 200 inches! 225 inches, 245 inches, 275 inches, 300 inches, 325 inches, 340 inches, 370 inches, 400 inches! I looked at my watch. 28 seconds. I let out a sigh. These two were able to grown bigger and faster all the time! As I looked up, Hannah held her casual look, locked eyes with mine and then looked up at her towering bicep. "Want to feel my bicep, Justin? I'll bet it's really hard!" I swallowed. Setting the device down, I walked over and placed my hands on the side of her incredible muscle. There was no way I could reach her peak now! My hands were dwarfed by the incredible bicep mass in front of me. Hannah chuckled as I rubbed by hands and made a feeble attempt to squeeze her glorious muscle. Containing myself I looked down at her smiling face. "It's very impressive Hannah." Hannah laughed at me. "Yeah, it sure is! Paige and I are muscle queens! Super muscle queens!" I backed away just as Paige spoke up. "Yeah! Muscle queens! Is it my turn to flex again?" I cleared my throat. "No, not yet. Since Hannah flexed up to 400 inches faster than you, she goes first for the next flex." Paige let out another, "Oh, pooh," and dropped her head. She then looked back at her sister with a sense of wonder. Paige was just as powerful as Hannah, but Hannah was still her big sister and carried herself with more maturity. You could tell that Paige wished to emulate her big sister in every way. Looking back toward Hannah I watched as she relaxed her flex and twisted her neck around slowly, preparing for the next height. Bringing her arm down, she relaxed, slowly brought her arm back up and had her bicep back to 50 inches in a flash. "OK, Hannah, let's keep it going. Let's see if you can flex your arm up to 800 inches around. That's over 66 feet! Think you can do it?" Hannah sniffed. "Oh, I'm pretty sure I can do that! I have the power! Just tell me when to go!" I shook my head. So far there was no challenge big enough that these two couldn't meet. It was time to test that theory again. Setting the device I yelled out ready, go and was once again stunned at how quickly the numbers advanced. The device flew up to 100 inches in a few seconds! With a goal of 800 inches, this time I looked to steal a few glanced of the bicep as it grew. What a sight! Mounds of young girl might expanded upward like an erupting volcano of super muscles! Her bicep crackled with energy and discharged a few sparks around the ever growing peak! I glanced down. 345 inches! Wow! Almost 29 feet and growing! I looked back up. The bicep peak was quickly disappearing from view. I backed up a bit to take her magnificent muscle in as it grew to impossible heights. Her veins were chasing her muscle up to the peak, pulsing with unearthly energy as layers of super muscles continued to stack on top of each other. I looked down at the reading again. 578 inches! Over 48 feet around! I looked back up at her climbing peak and watched as the energy discharged intensified a little. Hannah was moaning with pleasure as her bicep raced up to the sky! Looking back down it was now over 700 inches around! I kept my eye on the readings as her bicep blasted up to 730 inches, 760 inches, 780 inches and finally 800 inches around! She had done it! I looked at my watch. 49 seconds! Her bicep expanded at over 15 inches a second up to a height of over 30 feet! Was there nothing these two couldn't do? As my eyes came off the incredible bicep I looked at Hannah who gave me a smile of immense satisfaction. "Not bad, huh? The power that I feel in my bicep is incredible! I feel like I could curl a mountain! I love this!" I nodded my head as though I understood what she was feeling. She smiled back at me, relaxed her flex and let out a satisfied sigh. Hannah licked her lips and pushed her hair off her shoulders, causing her ‘reduced' biceps to pop to attention and flex into hard, ripped balls of might. She gave me another subtle smile and took a step back, allowing her sister her chance to shine. Paige looked at me with exciting eyes. "Is it my turn now? I hope I can flex up that big!" I laughed. "I'm sure you can, Paige. You're a super kindergartener remember. You just need to do it faster than 49 seconds." Paige scrunched her pretty face, hopped up and down on her toes and brought her arm back out. Her legs bunched and surged with incredible muscles bigger than any bodybuilder. Her abs rippled with intensity and her rubber top groaned as her mighty pecs blocked into muscle crystals, pushing out over two feet away from her body. She brought her little hand into a fist and pulled her forearm up. Her bicep once again expanded like some type of muscle balloon, blowing up to 50 inches in moments, contrasting the young, beauty contest face of the 3 foot 3 inch 5 year old girl. Her bicep circumference was bigger around than her height by almost a foot! Super Flex couldn't make that claim! And she did it just by bringing her forearm up to vertical! Paige's bicep bulged with impossible power and super energy, pushing up higher than her little fist. Her bicep was ripped, peaked and primed to go super nova. Her confidence fully restored she gave me a giddy smile and waited for me to tell her flex down hard. I chuckled and shook my head. "OK, Paige, ready, go!" I looked down at the readings and just like her big sister, her bicep expanded at a phenomenal rate! It was over 80 inches around in seconds! I looked up to see Paige concentrating as her bicep blasted upward like a super muscular missile! It was bigger than her, then it was bigger than me, then it was bigger than Super Flex! I looked down at the reading to see 278 inches and getting bigger in a hurry! I couldn't really read the last number, it always looked like an 8! I looked back up as Paige was gritting her teeth and just like her sister, energy bolts started to discharge around her incredible little girl bicep. Veins tore up her bicep as her big, pink tower of power pushed for the heavens! I looked back down at the reading just as it reached 500 inches! Nearly 42 feet around and growing! I took another quick glance up as her bicep continued its incredible expansion upward past 20 feet high! What an incredible sight! I looked back down as the reading hit 760 inches! I read off the results, 780 inches, 800 inches! Wow! And she did it in 48 seconds, just beating her big sister! I couldn't believe it! I looked back at her mighty bicep as the energy discharges popped and crackled around her muscle. She really was a super kindergartener! "You did it Paige! You beat Hannah by 1 second! Relax you arm for a moment." Paige looked up at her bicep and nodded her head in satisfaction. "That is so cool! I feel so strong! Like I could lift anything!" Taking another breath, she finally relaxed and her titanic bicep slowly pulled back down until it was back to the size of a large melon. I looked at her with continued admiration. What a girl! "OK girls we're tied. One more flex and we're done." Paige let out an "awe". I smiled at her. "I know you'd like to keep going, but I don't think I can take any more today. Besides, it's time for supper and we have some cleaning up to do." Hannah and Paige looked around, seemingly realizing for the first time the damage they had done. Two super heroes unconscious on the floor, a completely destroyed basement. And a house sitting it their back yard completely tore away from the foundation. They both looked back at me with a bit of embarrassment. Hannah, looking more like an 8 year old girl than she had since this morning gave me a sheepish look. "Uh, OK Justin. After this last flex we'll clean up. I'm getting hungry too." Following her sister's lead as I thought she would, Paige nodded her head and looked at me with puppy dog eyes. I felt a little better, since there was no way I could physically make them do anything. Laughing I gave them both understanding looks. They both smiled back at me, completing a bond that had been formed this morning. They may be the two most powerful beings in the universe, but I was still their babysitter. "OK Paige, here's what we're going to do. One last flex for today. Let's see if you can flex up to 1200 inches. 100 feet around. Your bicep would be 50 feet high! Good thing the roof is gone or you'd tear right through it!" Paige giggled at my last statement and flipped her bright red hair over her massive shoulder and brought her arm back up one more time. I still marveled as her little hand flowed into a large, Popeye sized forearm with huge cords of muscles that quickly arched into her small elbow joint and incredibly back out to her bulging, basketball sized bicep that pushed up past her fist and a little over her striated shoulder, looking like she had another head! Her other arm was down to her side and was flexed too with a big block of tricep power pushed nearly a foot away from her body. Her rubbery straps were tight against her unyielding body and barely covered up her young nipples, exposing ever inch of striated pectorals. She pulled her stomach in, causing her abs to form into blocks of unreal muscles with deep crevices. Paige set her legs and her thighs expanded a bit, layering incredible rope like muscles all around. Her calves pulsed bigger as they were clearly seen from the front as they dipped quickly back to her small ankles and cute little feet. She was ready to go and gave me serious look. Paige wanted to win this contest. Setting the device, I looked at my watch, looked back at Paige, and glanced back down. "Alright! Ready, go!" And as before, the readings increased at an incredible rate, faster then before, faster than any flex she had ever done! It was 90 inches in seconds! This was going to be good. Paige's bicep expanded with reckless abandon. She was clearly giving it everything she had! The muscle fibers piled on top of each other like they were on fast forward. Her bicep exploded with super energy as it climbed higher. Large veins pulsed quickly, supplying her super bicep with mega energy. I blinked quickly, having a hard time keeping up with this impossible feat! I gave a quick glance down to the reading just as it crossed 400 inches! Her bicep was over 33 feet around in a matter of moments and quickly growing bigger! I looked back up as her incredible bicep skyrocketed higher, crackling and popping with blue and pink energy! How could these girls continue to perform these previously impossible acts? I took a number of steps back in a vain hope of being able to take in the whole mind numbing muscle. Paige turned her head and looked up at her mega bicep as she willed more strength and power into her super charged muscles! Her bicep looked to be approaching 40 feet tall! As I looked down at the device I gasped. Her bicep was already 900 inches around! Over 10 times Super Flex's best! She really was Super Duper Flex Paige! I gave her bicep another glance and was greeted with a bicep that had cleared the ground level! Her bicep was the biggest thing in the basement! The energy discharge at her peak was getting louder and was starting to push down the rest of her mighty bicep! I looked back down at the reading as it spun past 1050 inches! I stole one last glance up at her peak high in the air and back at the reading so I could call them out. 1100 inches! 1120 inches, 1140 inches, 1160 inches, 1180 inches, 1200 inches! She had done it yet again! A 100 foot bicep! The biggest ever flexed times 15! I looked at my watch. One minute and 3 seconds! Almost 20 inches a second! Good grief! Paige started giggling like she was being tickled. "I feel so strong I can barely stand it! Look at my humongous bicep Justin! Come over and feel the power!" I looked at Paige. The rest of her muscles had surged a bit bigger, especially her tricep, which had pushed out nearly three feet away from her body. Every muscle shined and rippled with unparallel power. Her green eyes sparkled as I approached the biggest bicep ever flexed. I craned my neck to try and get a view of a 5 story bicep. I whistled at the view and Paige giggled louder. I laid my hands on the side of her bicep and could feel the power transverse her muscles. Like placing your hands on a power generator, my arms tingled down to the shoulder. What an awe inspiring feeling. The veins that pushed out the side of her bicep were as big as my fingers and pulsed rapidly. I let out a heart felt ‘Wow' and stepped away. Paige smiled at me and released her flex. And just as quickly as her muscles expanded, they contracted down to a heavyweight bodybuilder size, with likely all of the power still contained inside. I moved over and looked at Hannah who gave me a knowing smile. She shook her arm, looking at Paige. "Great job Paige! That was really cool!" Paige nodded her head and smiled broadly. Praise from her big sister was better than anything I could give. Hannah centered herself and turned her head from side to side, tossing her hair back and forth. She looked at me and with a sultry gaze placed her feet down and shook both thighs, pulsing them back and forth, adding a bit of mass with every pulse. She then stopped and flexed down hard causing them to crunch into phenomenal slabs of young girl might. Her abs were racked with super cut blocks of mega muscles and her chest had expanded back up past the size of twin basketballs. She artfully flexed one pectoral and then the next to accentuate her incredible muscle control. Hannah brought her arm back out and slowly brought her thick forearm up, causing her bicep to once again expand like some type of super bread in the oven. From a melon to a volleyball to a basketball in moments her bicep peaked up to shear muscle perfection. Her beautiful 8 year old smile against her massive bicep still showcased a contrast in states. Young beauty against incredible power. What a sight. What a girl. I looked at the readings. Back to 50 inches. These two seemed to know exactly how big to flex. Whistling my approval, I looked at my watch and looked at Hannah. "Ready?" She softened her smile and let out a soft chuckle. "Oh, yeah. Let's do this." Releasing a breath I didn't realize I was holding I looked back at the watch, re-checked the reading and yelled out go. The readings charged forward and shot to 100 inches in the blink of an eye. I looked up to see her splendorous bicep charge for the sky. The power she was unleashing produced a low rumbling that reverberated off the remains of the walls. I watched as her bicep expanded faster than ever before, shooting up to 10 feet, 11 feet and higher! I quickly stepped back in hopes of keeping up as her peak was now out of view. I looked down at the reading, which was spinning past 420 inches! 35 mind boggling feet around and growing! I looked back up and watched as her bicep continued her precedent setting ascent. Each muscle fiber flowed perfectly and expanded quickly. Her veins were growing bigger and launched up her bicep, chasing her peak upward. I was craning my neck against her magnificent muscle, took another step back and glanced down at the reading. It was sailing over 750 inches and seemed to be gaining speed! Good grief! Over 62 feet of little girl supremacy. I looked back up as her bicep climbed up to 8 times her height! What a display of domination! The snaps of pops of energy discharge returned as her bicep continued to press bigger and higher! I strained my eyes, unwilling to blink my eyes and miss a second of this historic demonstration of what one little girl could do! Her bicep expanded onward to a wall muscle might over 40 feet tall! My breath quickened at this raw display of ultimate young girl power! I looked down at the display and had to quickly spit out the readings. 1160 inches, 1180 inches, 1200 inches! I looked at my watch. 57 seconds! Over 21 inches a second! I let out a sigh, Mega Hannah had done it! 100 feet in less than a minute. Only there seemed to be a problem. Hannah hadn't stopped. A bit panicked, I cried out. "Hannah! You did it! 100 feet around in less than a minute! You win! You can stop now!" Hannah laughed at me. "100 feet around? Let's try for 200! I'm feeling mighty strong! This rush is awesome!" What could I do but to take another few steps back and stare upward as her bicep seemed to be reaching escape velocity! It was 10 feet above the foundation and rising! The low rumbling of young girl brawn got a little louder as her bicep continued to expand to glorious heights! I looked down at the reading. 1600 inches flashed on the screen. Oh my god! She wasn't kidding. Hannah was going flex up a 200 foot bicep! Paige was cheering her on and I was getting dizzy again. This was going beyond my comprehension. There is no way they should be able to do this. But there it was. I shook my head as the top of her bicep was slipping away from view over 80 feet away! The energy discharged cascaded down enormous bicep accentuating her humongous muscle fibers and pulsing veins. Her bicep climbed higher than her house, shooting for the sky! I glanced back down as her bicep passed 2000 inches around! Over 166 feet! I yelled out the number to Hannah, but she just laughed back at me. "2000 inches? Is that all? My mega muscle is bursting with super power! I could curl a mountain range, the Empire State Building and maybe the moon! Nothing can stop me now! Look at my bicep! The biggest muscle ever flexed! This feels soooooooo good!" I gasped as her mighty bicep erupted with titanic might, layering super muscles on top of super muscles, pushing up over 9 stories tall! Curl the Empire State Building? Heck if she kept it up her bicep would be AS BIG as the Empire State Building. I looked down just as her ferocious bicep hit 2400 inches! It was now 200 feet around! I screamed out the result. "HANNAH! YOUR BICEP IS NOW 200 FEET AROUND! IT'S 100 FEET HIGH!" Hannah finally seemed to relax a little and let out a sweet little chuckle. "200 feet? Now that's big! I guess I can slow it down now!" I looked down at the readings, which were still increasing, but had slowed. 2500 inches, 2550 inches, 2600 inches, 2630 inches, 2660 inches, 2680 inches and finally 2700 inches. 225 feet of the biggest, mightiest bicep muscle ever flexed. Over 33 times Super Flex's best. Her bicep towered up 112 feet in the air! My mouth hung open and my shoulders drooped. What a display of ultimate power! Hannah chuckled and called me over. "Come over here Justin and feel my bicep!" I slowly walked over, a little afraid to get near such a display of raw might. The energy discharges had slowed, but her veins still pulsed. I got close, looked down at her beaming face and gave her a weak smile. She giggled at my nervousness. I exhaled, looked up and almost fell backward in a hopeless attempt to see the top of her rippling muscle. I brought my head back forward and placed my hands on her bicep. Whoa! What a rush! The power emanating from her bicep was incredible. The hair on the back of my neck stood on end. My hands tingled down through my arms and into my chest. I could only image what she was capable of. She was truly beyond the boundaries of any being ever to have taken a breath on planet earth. After a few seconds I backed away and looked back at Hannah. "Wow, Hannah, your bicep is the most incredible thing I have ever seen. 225 feet around. That's an unreal accomplishment." She smiled at me as she released her flex. "Yeah! That was great!" I watched as her bicep reduced back down, pulling all of the strength and power with it. My eyes followed her bicep as it came down under the foundation and finally back into a basketball sized mass of muscle perfection. She brought her hands down and placed them on her hips. Hannah's muscles pulsed with immeasurable might. Her chest moved up to her chin with every breath. Her legs were ripped pillars of ultimate muscle power. Her hair shined and her blue eyes sparkled. At that moment, she WAS Supergirl! I looked over as Paige skipped up to Hannah and gushed her approval. "That was so cool! Your bicep was huge! I can't wait to try and flex up that big!" I responded quickly. "Oh no! Not today! It's time to get something to eat. And besides, you two need to put the house back where it was when I got here." I looked down at the two superheroes slumbering on the ground. "And we need to do something about these two." Paige and Hannah giggled. Hannah came up to me and gave me a hug. I groaned under the pressure that I'm sure was casual for her. "OK Justin! We'll go upstairs and move the house back! Then can we order a pizza?" It was my turn to chuckle. "Well, that depends if we still have any phone service. You two may have ripped all the wires from the house." Hannah gave me a concerned look and put her hand over her mouth. "Really? Can you fix it?" I laughed. "Just move the house back first. I'll go upstairs with you to help guide." Paige and Hannah skipped up the stairs giggling and talking to each other the whole way. I followed as quickly as I could. Putting the house back would be the easy part. Explaining this all to their parents would be another thing. Having them believe any of it would be a whole other ball game. After all, who would believe that the two strongest, most power people on earth were an 8 year old girl and 5 year old girl? I smiled at the thought. Yeah, who would believe it? The End.