Some muscle growth fiction I wrote and posted here: https://muscle-growth.org/topic/12760-nates-dna/
I apologize for tumblr formatting this story all weird. NSFW warning, also it’s kinda long…
“Corporal Peterson? This is Amelia Lawson with the US Army Genetics Laboratory.”
“Ms. Lawson, it’s retired Corporal Peterson, and I assure you I have no further business with you, your colleagues, or your lab.”
“You’re absolutely correct Corporal Peterson. I’m not calling about business with you. I have business with your son. You see, when you signed those contracts all those years back and permitted us to make the serum, you also signed over rights to your progeny if the US Military deemed them necessary to research.” “You can’t have my son.” Peterson replied.
“You signed a military contract Corporal Peterson. I assure you we wish no harm onto your son. You know more than anybody what the serum we created with your DNA is capable of. I hope the effects are still satisfactory? We’ll have a military vehicle in your driveway on Saturday morning to collect him. Due to the nature of your projects during your service, you still have clearance to enter our labs. You’re welcome to join him here, but I must make it perfectly clear that you are in no way to inhibit our research. Am I clear?”
“I have a wrestling match to get to. I will see you on Saturday.” Peterson choked out, stifling his rage.
“Of course, Corporal. Enjoy your afternoon.” *click* Retired Army Corporal John Peterson dropped his arm, unable to speak. He’d done his time, he’d been the test subject they required, and he’d gotten out. It’d taken him a long time post-military to figure out civilian life again. He had a son with his first wife, but he’d driven her away. He’d raised Nate pretty much on his own for Nate’s entire life. He took a deep breath, grabbed his truck keys, and headed out to Nate’s wrestling match. On the drive to the high school, his own memories of that lab came back to him. He’d been young when he was selected. He’d just turned 20. He was in good shape, a solid 6ft tall, 225lbs. He was selected for the serum project because of his natural build, but more so because of his genetics. The Army’s goal was to make a serum that would turn ordinary soldiers into a realistic definition of “super soldier”. The goal was to have a method to bypass weeks of training and nutrition and be able to directly beef up their scrawnier guys into impressive soldiers, full of energy and stamina for the battlefield. They scientists extracted his blood and derived the serum. As per their agreement, he would be the first recipient of the stuff, and he was guaranteed to respond well to it. And he did. John grew and grew and GREW! He vividly remembered the sheer pain in every bone of his body as he grew taller by the day. His muscled ached as they expanded with minimal effort. Every day in the clinic was filled with shots, strength tests, massages, ice baths, constant eating, and bedrest. The Army could hardly keep the man fed or clothed. His complete transformation took only six months, but they were a long six months. He left the clinic a man most would be intimidated by. Standing at 6’10 and a solid 335lbs of muscle. From then on he spent his days as a soldier constantly showing up the other men on the field. His immense strength came with speed to match, and a nearly limitless supply of stamina. His time out of the military had hardly had an impact on his musculature. The serum interacted with his DNA to change him from the innermost level and on up. He hadn’t touched a weight in almost twenty years, but he still weighed in at 305lbs, and found the world to be a bit too small for him. He’d taken a civilian job as a welder, and the work and pay was good. His boss was a good man who respected John for his commitment as a dad, a soldier, and because he was a behemoth of a man. He pulled into the high school and made his way into the gym. He waved to Nate as he was stretching on the sidelines before the game started. John couldn’t help but to be proud of his son. Nate had inherited John’s altered DNA, and now as a Freshman in high school, it was apparent. Neither John nor the military truly understood how the serum would impact his offspring, thus the clause John had carelessly overlooked. Nate was born a normal, healthy baby boy. It wasn’t until Nate was in the 5th grade that John started to suspect anything. Nate reminisced on his son’s wild journey as he waited for the matches to start, trying to keep his mind off of Saturday.—“Dad! Guess what!” a young Nate exclaimed one day after school. “Remember how that lady came to our school and told us about growth spurts? I think I’m starting mine! Look at my pants!” Sure enough, the little boy’s ankles showed clear as day. “I hope I grow to be as tall as you are dad! You’re a GIANT! You’re so much bigger than everybody else’s dad!” John chuckled that day and reassured his son that he’d grow to be plenty tall enough, but in his mind he knew that day that his son was basically born with the serum that made John Peterson into a goliath.He’d already started marking Nate’s growth on the wall outside his bedroom door. Nate had asked his dad to measure himself, and a dash marked “Dad 6’10” had been marked above the doorway for a few years now. It was an impressive catalog of his son’s growth so far. When Nate started growing, he stood at an average height of 4’6”, but he didn’t stay there long. He started growing like a weed. He finished the 5th grade five months later at an even 5’, and he started 6th grade at 5’3”. His friends hardly recognized him when they started middle school. Not only was Nate growing taller, he was decently built for a kid, and sports came easy for him. He was phenomenally coordinated, and excelled at basketball, baseball, soccer, football, and whatever he put his mind to. Despite his nearly constant growing size, he never developed that awkward gangly-ness so many boys develop at this stage. John struggled to clothe the boy as he would constantly come home complaining about his clothes not fitting. John knew Nate loved every minute of it, though. John remembered one day back in November of Nate’s 6th grade year. He was standing at a good 5’4, quickly growing taller than most boys in his classes, and having grown almost an entire foot in less than a year. The two of them had gone to pick out a Christmas tree. Nate was amazed every year that his dad towered over many of the trees. To be honest, John really got a kick out of it himself. He’d worn one of his oversized flannel shirts, and with his full beard he was practically Paul Bunyan. They selected their tree, and when the crew came to help haul the tree back to their vehicle, Nate was adamant that he and his dad could do it on their own. John was confident in his ability to lift and carry the tree on his own, but he rarely made public displays these days of his strength. People became uneasy just by his size, and performing feats of strength just made him into a spectacle, and he hated that, especially with Nate by his side. Nate was adamant, however; and so John made his way to the trunk of the tree and lifted it with ease. He’d sent Nate to the top of the tree and instructed him to lift. Nate grabbed hold of the tree and strained himself to lift. “Don’t hurt yourself, son!” John called out, worried.“Nnnnngggghhhhhh! It’s heavy!” Nate exclaimed, unable to lift it more than a couple of inches off the ground. John sat his end of the tree down and took a deep breath.“Alright Nate, step out of the way. The tree doesn’t feel that heavy. Just let me grab it and I’ll carr—“ John started, but was cut off by his son going into a rage.“No! I can carry it! I can! Just you watch!” And just as fast as he said it, he ran to the center of the tree, grabbed hold with both arms and began to lift. John’s eyes grew wide as his son grunted loudly, sweat pooling on his young, innocent face. In fact, the look on his face was so intense and scary, it hardly looked like one that belonged on an 11 year old. John watched as the tree rose up off the ground. John thought he heard the sounds of snapping or stretching coupled with the branches of the tree rustling. Amazed at the display of strength, he watched mouth agape as little Nate lifted the tree and began walking towards the truck. “Don’t you dare help me dad! I’m carrying it all on my own.” Nate snarled through gritted teeth as he walked. From behind, John could see Nate’s ankles showing yet again under his pants…but John knew for a fact that those pants fit him fine earlier. As they got to the truck, another heavy grunt was followed by Nate hoisting the tree up over his head. Nate was breathing heavy as John rushed over to grab the tree and help his son affix it to the vehicle. John turned back to see his son, who had been doubled over and breathing heavily, stand up straight. “Dad! Did you see that! I’m a beast like yo—Oh my God! Dad! Look! I grew when I lifted the tree!” And sure enough, John hadn’t been seeing things. Nate looked down, seeing his pants were not only a couple inches too short, but they also looked tight. “Dad! My shoes! My feet!” Nate reached down to see his feet had grown, ripping open the sides and front of his Men’s size 7 shoes. He stood up straight and held his arms out, demonstrating that his arms were now too long for his coat that also looked like it had been stretched over him like a second skin. He unzipped his coat and peeled it off, and what was underneath made both father and son stare in awe. His T-shirt he’d been wearing under his coat had torn to make room for what was not at all an average upper body for a 6th grader. He looked like a junior bodybuilder! “Woah dad! I’ve got muscles like you! This is the best day ever!”John didn’t understand it, but he had Nate get into the truck and drove him straight home. He debated calling the Army Genetics Lab right away, but he’d decided to keep it from them. He was more worried of what they would do if they found out than about what was happening to his son. The first thing they did when they got home, by Nate’s request, was measure his height. 5’6. He’d grown two whole inches from the encounter with the tree. He stepped on the scale, and it read 115lbs. In John’s eyes he’d gone from a boy to a man all at once. Sure, he was still much shorter and lighter than he was, but John also knew that his natural adult height was only 6’, and at this rate Nate might hit that height by dinnertime. Fortunately for John, Nate didn’t experience any other mega growth spurts that day, but he was still very much a growing boy. Nate started eating like a madman, so much so that he got calls from his friends’ parents requesting that John either send food or tell Nate to slow it down and save some for everyone else when he visited with them. He finished 6th grade at a height of 5’8”, and a weight of 128lbs. He had started looking like a high schooler. John was immensely proud of his son, but it was definitely a struggle parenting a 12 year old who was starting to look like a teen fitness model. One evening during the summer between sixth and seventh grade, John had cooked dinner for both of them and was cleaning up while Nate went up to his room, which he was starting to spend more and more time in. As John finished cleaning, he crept his way over to his son’s shut bedroom door. As he did, he saw Nate heading into the bathroom. He took this opportunity to snoop on him a bit. He crept over to the bedroom door, opened it, and ducked under the doorframe and into the bedroom.It’d been a few weeks since John remembered being in his son’s room. The smell was what hit him first. It was unmistakably the smell of cum, and it hung in the room like a thick fog. John immediately felt remorseful. Here his son was at the age of self-discovery, and he’d done very little as a father to facilitate that or even acknowledge it…Trying not to choke on the scent of his son’s seed, he browsed the room. Nate hadn’t done anything to conceal what had been going on. His phone was on, and the video titled “Huge Dick in a Tight White Pussy” had finished playing on the screen. Beside the phone was a curious thing, a strip of measuring tape. By all of this was a roll of toilet paper and his son’s wastebasket, full of cum-sodden paper. Behind him he heard the shower turn on, and he knew he had a few minutes to continue his investigation. The phone, still unlocked, made a familiar ding, and John picked it up to see a series of messages with his son’s best friend Aaron. He scrolled up and read their latest conversation:
Aaron: Hey bro u grown ne more since school let out?
Nate: Nah bro we just finished lol
A: How tall u think u gon get? Ur dad is a fuckin giant
N: idk, but I like bein tall
A: You wanna be a giant like ur dad? He’s tall and a beast. His arms are bigger than my head XD
N: Sometimes I think about being bigger than him. I think that’d be cool
A: Shit, you’d be the biggest guy ever if you were he’s like what seven foot?
A: You’re close to 5’10. Only a foot to go. I’ll be lucky if I hit 6ft, but youll hit that before high school.
N: Shit yeah prolly Damn thinking about it gets me hard
— (Some time passed after this message)
N: Sorry I didn’t mean that to sound so gay. I just like the thought of growing up to be like my dad
A: Nah man it’s cool. Id get hard thinkin about that too if I were u
A: Yours is pretty big, isn’t it? I mean your wearing a size 10 shoe already
N: I dunno prolly not I never measured it before
A: measure that shit, I heard other kids sayin urs is big
N: Wut? No way let me get something to measure it with. How do you measure it?
A: push in to the base and measure all the way to the end
N: uhhh it says about 6 and a half inches
A: size matters dude, and you got yourself a grown ass man dick, average is like 6 inches on a grown man
N: oh cool how big is yours? Will mine get bigger?
A: yeah dude we’re kids we’ve got plenty of time for them to grow bigger. Some people don’t get theirs to grow until their in high school and stuff
N: Yeah, right…and mine’s 6 and a half…for now.
A: Do you know how big your dad’s is? That’s how big yours will be probly
N: Uhhh no I can’t remember ever seeing his. It’s prolly huge tho
A: yeah prolly…shit I gotta jerk off now all this talk
N: yeah me 2 got anything good? U no I don’t like watching the same stuff over and over
A: Shit dude I’m runnin out of stuff how much u jerkin now?
N: just a few times a day, it just gets hard all the time and not bein in school makes it easy to jerk it a bunch ya know?
A: fuuuuuuck dude that’s 2 much itll fall off if you keep it up
N: uhhh, I don’t think so. If so mine would have fallen off this week 4 sure lol
A: dude ur an animal plus if u jerk it a bunch you stop jizzin as much
N: not me dude I blow a fuck ton everytime its awesome
A: fuck u man here watch this and leave me alone have fun (1 attachment)
N: all that talk must have made me supercharged or something dude I just blew across my whole bedroom fuuuuck I gotta get this cleaned up and shower fuck that was a good video tho Ill probably watch it again sometime.
N: he wasn’t that big tho ;D
John was mortified, proud, and hard as a rock all at the same time. He put the phone down and finally let it lock itself. He looked up from the phone and across the bedroom to see where Nate had claimed he shot his load. His bed was on one side of the room, and indeed there was a pile of tissues clear across the room. John’s mind was racing as he turned around to hear the shower water turn off. He quickly made sure the room was as it was when he entered it, he pulled the door shut and made his way down the hall to his own bedroom. As he approached his own door the bathroom door opened. John turned to see his son with nothing but a towel around him exit and look up at him. Nate had just recently finished with baseball season, and the training and running had really done his body good. He wasn’t exactly muscular, but his pecs had definition, and his arms weren’t by any means small. He had very little bodyfat and had the six pack to show for it.
“You’re looking good, champ.”
“Thanks, dad! Hey….uh, nevermind.” Nate started to ask his dad a question, but quickly turned red and backed down from it. He turned his back and started down the hall towards his room.
“Whatcha need?” John took in his son’s muscular back as he turned away from him. His muscle groups clearly defined, and his ass bulging through the thin towel.
Nate didn’t turn around. He kept walking towards his bedroom. “Don’t worry about it, dad.” John followed him to his bedroom. He came up behind his son as he opened the bedroom door and tried to give a genuine reaction to the smell wafting out of the doorframe.
“Woah Nate, you’ve been…busy.” John said taking a harsh whiff of air in through his nose.
Nate froze just inside the room. “Uhhh…uhhh, I just…I can’t help…I..” John chuckled. “It’s okay sport. It’s normal. All young guys go through it. And listen, it’s just you and me around here. You can talk to me about anything. Even this stuff, okay?”
Nate made his way over to the bed and sad down, towel still wrapped around his waist. “Yeah, I know…This all just started a few weeks ago. I promise. It just feels so good and I want to do it a lot. Is…it normal to do it a lot every day?” “For some guys it is. Not everybody can, but you’ve just gotta make sure to keep your room clean, okay? It’s fine if you need to…take care of business when you need to, but don’t leave a mess.”
Nate sat up straighter. “But there’s so much! Is that normal? And it shoots out really far every time and Aaron says…” Nate trailed off.
“Don’t worry about what Aaron says. Listen, you’re a tall, good looking guy. Sometimes other guys get jealous. Whether it’s height or other stuff, you can’t change it. Other people might say some weird or hurtful stuff, but they’re probably just jealous. Now, it’s fine if there’s a lot of semen, that’s what it’s called. Some people call it jizz or cum. It’s normal for there to be a lot because you get that from me. Does it hurt when you jerk off a lot in a day?” John had never had a more uncomfortable conversation in his life, but he felt like it was necessary. He was the only one who could guide Nate through this. “Jealous, huh? And no. It doesn’t hurt. It just feels really really good.” It was at this time that Nate’s dick rose to the occasion, clearly visible through the towel. Nate looked at his crotch and blushed. “Oh! Sorry…it just…sometimes I can’t do anything about it.” He grabbed a pillow off of his bed and covered himself.
“Nate, don’t ever be ashamed of yourself. Not around me or anybody else. Have some confidence! Lots of boys would love to be as tall or as handsome or smart as you are. And that…” he gestured towards his son’s crotch “…that doesn’t look like it’s anything to be ashamed of.”
“So, how big are you dad? Your…dick.” Nate was so embarrassed. He wouldn’t even look up at his dad. He kept his eyes on the pillow covering his erection.
John took a deep breath and thought about how he wanted to move forward with this conversation. “You can talk to me about anything, son. Mine is 10 and three quarters of an inch long…and 7 and a half inches around.” John tried to keep a neutral expression, but he couldn’t fight the smile. He’d been so focused on raising Nate that he hadn’t been asked that question in several years. Nate reached over and grabbed his measuring tape and held it out to how long his dad just told him. His eyes grew wide. “Woah…so I’ll get that big, too?”
“Eat your veggies, kid. Anything’s possible. It’d be pretty cool if you grew up to be even bigger than your old man, huh?” A smile washed over his son’s face.
“Yeah, that’d be awesome! Uh…one more question.” Nate looked up at his dad. “What if…a girl wants to see it? Or if she…I don’t know…wants to…I don’t know…”
“Nate, you’re awfully young to be doing those sorts of things, but listen to me. Safety is the most important thing. The last thing I’d want for you is to get sick. Be careful, be picky, and…be prepared. Do you know what a condom is?” “Yeah…I know. I don’t need any right now, I was just wondering.”
“I’m glad we talked about this. Listen, anything you need or want to know, just ask me, okay?”“Yeah, sure thing. You’re awesome, dad!” Nate tossed the pillow to the side and stood up, his towel falling to the floor, revealing his still hard dick. He reached over and gave his dad a side hug. “Confidence, right?” John was proud, but a little uncomfortable. “Yeah, son. Confidence.”Nate started the 7th grade at 5’8.5”. He’d hardly grown taller over the summer, but he’d eaten like a horse and it showed. He weighed in at 148lbs the day before school started. “Shit Nate!” His dad exclaimed, weighing and measuring his son’s height before school started. “You don’t look like a 7th grader. You look like a high school kid.” And it was true. If not for the young face and not fully developed voice you’d think he was at least four years older. “Yeah…I was hoping I’d be taller by now, though. I’m so close to six foot I can taste it! And look at this!” Nate was in an athletic t-shirt pulled tight over his pecs. He bounced them individually and then together. “Isn’t that awesome! I’m learning to do it like you!” John put a hand down on his son’s shoulder. “That’s great! Have you been working out?” “I sometimes do pushups and stuff here, but my body just…grows all on its own. It’s awesome! You don’t workout either do you, dad?” It was true, but John also had a very physically demanding job as a welder. As far as John knew, all Nate did was goof off with his friends and jerk off, and his body was amazing. Still eating like a horse, Nate reached his goal of hitting six foot by the end of 7th grade. Nate was elated, but not satisfied. “I’m still not the tallest guy in the 7th grade. I’m definitely in the best shape, but William in my homeroom is 6’2”. He’s super skinny, though.” It wasn’t long after measuring Nate at six foot that something somewhat embarrassing happened. John was doing laundry down the hall one evening. Nate was in his room with the door closed. John had to start making sure to wash their clothes separately mainly because he wanted to make sure Nate’s clothes got clean. His underwear was always cum-stained, and several pairs of his shorts had dried cum on them. These were ones he was wearing to school, and he’d been meaning to sit down and half a talk with him again about proper hygiene. No sooner than this thought went through his mind did he hear Nate scream from his room. It was definitely a scream of agony. John was bursting through his son’s door faster than he could blink. What he saw was his now six foot tall son standing by his bed completely naked. His face was red, and as John came around, he was able to discern the problem. Nate had a condom stretched across his dick that was way too small, and it was painful. The condom was stretched thin clearly across the head, but didn’t come all the way down the shaft. Nate was caught between trying to take it off and unable to because of the pain. However, the pressure on his dick kept it erect. “Uhhh, what are you doing?” John asked, both afraid for his son and trying not to laugh hysterically.“Nnngh, it’s too small! It hurts!” Nate was wincing in pain. “I can’t…get it off!”So John thought through his options. There was no way he was going to reach down and peel that condom off of his son. No way. Nate was still rock hard, but he was breathing heavy and he figured in a moment or two Nate would either pass out, lose his erection, or both. But that’s not what happened.“Get me out of this thing! Fuck!” Nate yelled. “Nnnnngggghhhhaaaaaa!” He screamed again. He put his hands on his bare hips and bucked, and John watched in awe, unsure if what he was seeing was true. It looked like Nate’s penis was stretching out from his body. He continued to breathe heavily, and with each breath his penis swelled. His exhales turned into grunts, and he began to buck his hips, his cock responding by reaching out further with each motion. John watched his son’s cock stretch outward in length. There was visibly more cock not covered by the condom than moments before. Although his dick continued to move outwards from his body, the condom held tight. And so his dick began to grow in girth, desperate to free itself. Both of their eyes widened in amazement as Nate’s dick widened. The young boy’s dick was now well above average for a grown man in all three dimensions. As it stretched the latex out, the sound of ripping and tearing could finally be heard. His dick continued in growth before finally ripping through the condom, releasing the young monster. “Oh thank God!” Nate exclaimed. “Oh fuck my balls!” he called out next. He was totally in his own world at this point. To keep up with the rod, his balls pulsed out and swelled like water balloons. They were of an average size before, but they continued to swell outwards, pulsing, looking like ping-pong balls at first, but swelling out beyond golf ball sized and finally slowing down and stopping at a size that reminded John of limes. “Oh fuck this is fucking amazing!” Nate reached down and grabbed his new member with both hands, placing one on top of the other along his newfound length. His fingertips just barely touching as they reached around its amazing girth, and he stroked it hard and fast. John could only watch as his son reached a massive orgasm right next to him. Nate was completely exposed, huge cock pointed towards the wall that was still roughly eight feet away. He moved one hand from his rod down to his balls, fondling the huge organs, still somewhat in shock at what had just happened. Neither of them spoke. Nate stroked for a few more seconds and then erupted. Cum shot out at an alarming speed. Gunks shot out at the wall, splashing with massive force. He continued to stroke and squeeze his balls, shooting several times. He pulled his dick up, and his cum hit the ceiling. He shot out an insane amount of jizz, coating the wall and the ceiling before finally calming down. Nate breathed heavily, bordering exhaustion from the ordeal, as cum dripped from the ceiling and ran down the wall.John stepped out of the way of all the cum dripping from above as Nate sat back on his bed. The tattered remains of the condom lying in between his feet. “Nate, what the hell was that?” Nate’s face was one of awe as he sat on his bed, watching his own jizz rain from the ceiling, listening to the dripping sound it made as it slowly fell to the floor. “Aaron gave me a box of condoms.” He started. “Apparently some 8th grade girls are into me, and are talking about wanting to hook up. But I didn’t know how to put on a condom. You told me to be safe, so I got one out and was going to practice.” Nate stopped, breathing still sporadic, to collect his thoughts. “I thought it looked kinda small, but Aaron insisted they’d fit just fine. But putting it on was super weird, so I couldn’t get hard. So…I just stretched it over my soft dick. It was a stretchy material, so I figured it’d be fine. When I started to get hard, I realized I’d fucked up. It hurt super bad, and I screamed. That’s when you came in. Then…it was like back with the Christmas tree a couple years back. I just needed to get out of that damn thing, and…yeah, that happened. Shit, look at it soft!” Nate hefted up his dick, sticky and coated in his jizz, but impressively big. “I don’t know what was up with my balls. They were just showing off I guess.” He took both hands and cradled them forward, smirking. He was sitting on the bed, and so much space between his legs were occupied by his big member.John could only stare. How the fuck did that just happen? John tried to take it all in. His son was now a 7th grader who was 6ft tall and hung like a fucking horse. Most grown men would kill for his proportions. Not only was he tall, but he was muscular, vascular, and ripped to shreds. There was hair all around his dick, but not nearly what would be on a man. It was just so…unnatural. And it was beautiful. Would this keep happening? What if it got out of control? For the second time John seriously considered calling that Army lab, but he didn’t out of fear of what they may do to his son. It took both of them the rest of the evening to clean everything up. John told his son that if he was going to be blowing loads that huge that he would have to come up with a solution to contain the mess. As impressive as it was that Nate could shot his loads up to the ceiling, it just wasn’t acceptable. From there they were presented with another problem in Nate’s underwear. After getting cleaned up, he went to put on his briefs, and according to Nate “it just doesn’t really fit in here.” So John took the task upon him that night to head out to buy his growing son bigger, more accommodating underwear. After getting to the store, he realized that he knew his son was big, but exactly how big? He had to know, so he messaged him.
John: Nate, I need to know something.
N: Oh man, I can’t believe I haven’t measured it yet! Let me get it up…
N: 8 and a half inches long!
N: and 6 and a quarter around! It’s almost as big around as it was long…earlier today!
J: Slow down Tiger, or you’ll have to carry it around in a wheelbarrow…
N: Yeah for real, and these balls…they’re like…huge eggs or something.
John put his phone in his pocket and browsed the underwear looking for some boxers or maybe boxer-briefs that would fit him. A moment later his phone buzzed again.
N: Dad…now that it’s up again…I need to blow a load
J: Seriously? You just took care of that about an hour ago.
N: What do you want me to do?
J: Figure it out! I know you just showered, but you may need to hop in there with the volume of it all.
N: What did you do at my age?
John stopped to think about how to answer this one. When he was in the 7th grade, he was still very much discovering himself. He was only about 5’5” or so, and the first time he measured his penis in middle school it was 4” hard and looked like a little pencil. All he needed at that time was a handful of tissue paper to wipe clean and he was good to go. So he thought ahead in time, after the treatments. There were days where the desire to bust a nut was so bad, and in many ways mirrored what Nate was going through now. Out on the field, he’d just wander off into the woods or someplace abandoned, make as big of a cummy mess as he pleased, button up and head back out to work. Nowadays he didn’t need to go that often, but he’d usually just take care of business in the shower every other day or so.
J: We’ve got tons of woods out back, just shoot your load there for the time being.
N: Outside? That’s fucking savage
N: I love it! Thanks for picking me up some underwear.
John picked up enough underwear to last his son a couple of weeks and also picked him up some condoms while he was out. He made sure to find ones that would fit. He figured that these spontaneous growth spurts wouldn’t be happening often, but puberty is a funny thing. He just hoped that Nate wouldn’t try to replicate the same incident trying to get even bigger. That thought scared the shit out of him. John came home to find Nate sitting on the couch in a t-shirt and basketball shorts. John felt dirty, but he looked and could clearly see his son’s soft dick and big balls in the shorts. He tossed the bags to his son and sat down next to him. Nate opened up the underwear and stood up. “I gotta say, free-balling is pretty awesome when you’re this big, but it makes me want to stay hard all the time. I mean, I had to go out there and shoot two loads before you could get back!” He dropped his shorts and slid on a pair of the boxer-briefs his dad picked out. Everything seemed to fit comfortably, but the bulge was something that could not be concealed. “And blowing a load in the woods is my new favorite thing. The fresh air on my dick feels awesome, and I was able to see how far and how high I can shoot. It’s awesome! I can’t believe my dick just straight up grew like that!” Nate pulled up his shorts, and his bulge was much more concealed than before. Nate plopped back down beside his dad. “Thanks for the underwear, dad. And what are these?” Nate picked up the condoms. “Oh sweet! You think these will fit?” He had a sly hint of sarcasm in his voice. “They’ll fit, trust me. And if they don’t, just tell me. No need to go busting out like before.”“Don’t worry about that, dad. I don’t think I could do that again if I wanted to. Besides, it hurt like hell.” He examined the box carefully. “These will do for now.” It was the “for now” that sent a chill down his dad’s spine. Here his son was the height that he himself was at 20 years old, with a bigger dick to boot. “Nate, take it from someone who’s been there. Don’t just go sticking your dick into anything that wants to “hook-up”. I know it’s tempting, but you’ve gotta be careful. You’re still young, so please don’t go making stupid mistakes. You could get sick, or get someone pregnant…just please don’t do that to your old dad.”“I know, dad. I’ll be careful.” “Thanks.” The two embraced after what had been a long, confusing evening. Nate started his last year of middle school at 6’1. As with every year, they took height and weight measurements. He weighed in at 160lbs. Nate was pissed for not being taller, but after being reminded that he was still an insane four and a half inches taller than he was a year ago, he calmed down a bit. “Besides” John said “I’m feeling pretty sure you’ll pass me even at this rate.” Nate continued to use the woods out back to take care of his business throughout the summer and into the next school year until it started to get cold in about December. He’d just hit 6’2”, and it was getting weird for John to not have to look down quite so far at his son. He hadn’t put on much weight at all, and he was starting to look a little wirier than he did at the start of the grade. Nate even tried going outside when it was 35 degrees outside, but even he couldn’t get it up when it was that cold. Nate’s solution was to use a combo of every shower as well as keeping tube socks handy. He doubled up on the socks to keep the mess down, and that worked until it got warm enough outside. That school year John was certain that somewhere along the line Nate had gathered sexual partners. Most of his friend group, aside from Aaron, had transitioned into more and more high schoolers, several of them girls. Nate was going with Aaron to high school football games and parties. John wasn’t a careless parent, though. He just realized that his son was already bigger than lots of guys at the high school. He kept reins on his son, though and always made sure he was home before it got too late. Aaron’s parents weren’t as careful, but if John had to drive out somewhere and pick up the boys then so be it. John could tell Nate had grown in confidence most of all. He could tell it in the way his son walked, in how he sat on the couch, and his carefree attitude in general. John made sure that Nate knew that if his grades slipped, he lost his social life, and Nate never let his dad down. By the end of middle school, Nate hit 6’4. Apparently he’d just barely passed this William kid and became the tallest at his school just before they left. John figured that title would still carry over to the high school in the fall. Over the summer, Nate spent a lot of time away from the house. This allowed John to pick up some overtime to help pay for the clothing and food that Nate was really putting away. Nate started high school as a massive freshman. Standing at 6’4.5 and a very solid 177lbs. That winter Nate joined the wrestling team at school. Aaron was doing it, and somehow goaded Nate into joining, too. John knew his son loved baseball, but he was in full support of Nate finding new athletic outlets. The first day Nate brought his singlet home he told his dad he had to show him something. “Coach told us just to wear compression shorts under this.” He told his dad, holding up the singlet. “Two problems with that. One, compression shorts are uncomfortable as hell, and two…well, just let me show you.”John waited for Nate to change into his compression shorts and then the tight green singlet. Once Nate had it on, John was impressed. On one hand, it was impressive how muscular Nate still looked in the singlet. You could easily make out his pecs and abs, and he looked much more muscular than any freshman in high school should, and the singlet was definitely not made for someone as muscular as his son. On the other hand, the bulge between his son’s legs was almost impossible to ignore.“Well, Bud…has it gotten bigger?” John asked his son. “Well, yeah, a bit. It’s just a smidge over 9 inches now and easily 6 and a half around. But I’m probably not going to get hard while wrestling somebody, the problem is these balls. I think they’ve gotten a little bigger, too.” Nate thought for a second and then corrected himself. “It’s not actually a problem. It’s great. In the locker room everybody stares, but nobody says anything. I’m definitely the biggest guy on the team. Probably in the whole school!…Oh shit, here it goes.” And sure enough, talking about his size like that got him hard. Nate reached down and pulled the tight material away from his engorging penis as it inflated and bulged up towards his chest. He released the material and laughed. He put his hands on his hips and bucked them forward. The bulge was obscene. It literally looked like someone took a salami and crammed it into the front of the singlet. You could make out his balls and even the details of his penis head through the compression shorts and the singlet. “You said to be confident, remember dad?”“Yeah, son, but confidence is not always about being lewd. You’re liable to get thrown off the team if you pull this stuff at practice or heaven help a meet. And don’t get cum on your singlet!” Snapping his fingers in his son’s face, he pulled him out of his trance and sent him to his room to take care of business and keep his singlet clean. It was no surprise that Nate was a kickass wrestler. He had much more strength than the other kids, and he was fast. The majority of the kids in his weight division were much fatter than Nate, and so Nate had a great first season. There were no issues…until Nate’s last match of the season.John was fortunate enough to be able to attend most of the matches, and he got riled up watching his son wrestle. The two of them would occasionally wrestle at home, but that was messy and playful. Watching Nate on the mat was awesome because he was calculating and specific.And the day of his last match of the season, the Army called John. He pulled into the high school and made his way into the gym. He waved to Nate as he was stretching on the sidelines before the game started. He’d let his mind wander to all sorts of things before finally being called back as the announcer called Nate to the mat.It was the regional finals, and due to some holes in the roster, Nate had been asked to wrestle up a weight class. Nate didn’t mind to wrestle in the 195lb class until he saw his opponent. Where the fuck did this kid come from? He was short, probably only 5’8 or 5’9, but he was built like a tank. As Nate watched this guy get up from the bench he asked his coach how old this guy was. “I’m not sure, but…he’s definitely been held back once or twice. Kid’s got a damn beard…”John watched the match unaware of the change in weight class. As he watched his son approach the mat with this scary looking kid from across town, John instantly felt nervous. He figured they needed Nate to wrestle up, but against this? As soon as the match started, Nate was in trouble. This “kid” was no joke. He knew he was heavy and he knew how to throw his weight around. Lucky for Nate, he was stronger than he looked…and he looked pretty damn strong. The match was scored with best 2 out of 3. The first match Nate was caught off guard and got thrown down and pinned, resulting in a loss. The second match Nate was able to win by points with enough escapes and reversals, but he couldn’t take the guy down. At the start of the third match, Nate was tired, and this ogre kid was unrelenting. Just the look on his face could make you sweat. As soon as the match started the two boys grabbed one another and began to grapple. They went back and forth, but after a minute they had each other grabbed, standing, in a seeming deadlock. Nate had finally worn this asshole down enough to at least get him still, but it wasn’t enough. Nate could feel his body being pulled away from the ground, and try as he might he couldn’t get him to budge. Watching from the stands, John had risen to his feet cheering for his son. This had definitely become the most intense sporting event he’d ever seen. He wanted more than anything for his son to win this match. He’d worked so hard all season, and he couldn’t stand to see Nate go out with a loss like this. “Come on Nate! Put him on his ass!” John screamed in the crowd. Normally someone would say something to a parent being this loud and invested, but not to a parent who is almost 7ft tall and could crush you under his heel.The boys struggled at a standstill for about twenty seconds when suddenly John heard Nate let out an actual roar. It was a roar that brought back memories for John, and he suddenly knew that this kid didn’t stand a chance. Nate’s opponent noticed it first. The shoulders he had his hands around were shifting under his grip. The hands grabbing onto him started covering more of his own shoulders. After Nate’s opponent realized Nate was growing, so did Nate and everyone else in the crowd. John watched in awe yet again as his son grew suddenly and immensely. Everyone grew quiet and the sounds of both boys’ heavy breathing followed by the sound of Nate stretching, bulging, and growing could be heard. Nate stretched even taller over the boy. His exposed shoulders expanding out to look like basketballs, followed by his biceps and triceps expanding outwards. Flexed biceps making him look like some teen version of the hulk swelled bigger still. From between the boys you could see Nate’s pecs stretching the already tight fabric to its limits. Nate’s entire upper body swelled outwards. He was starting to rival the kid he was pitted against in terms of density, but Nate was fast approaching an entire foot taller. His neck and traps bulged outwards, stretching his shoulder straps thin as the front of the green singlet tore down the middle, revealing the young musclebound chest. His opponent tried to lift Nate, to move at all, but it was no good. Nate was now holding him tightly in place, giving him a front row seat to his growth. Nate was grunting as his body pulsed outwards. The singlet ripped yet again down the back, and finally the straps snapped. Nate let out another roar as he finally lifted the boy with ease, putting him on his back. Nate wasn’t finished yet, though. His entire upper body was exposed for everyone to see, pulsing and growing still. He squatted way down, placing his big hands on the smaller boy’s shoulders. The look of terror on his bearded face was priceless to Nate. “I’m not finished yet. Enjoy what you’ve done to me, bitch!” And everyone got a great view of Nate’s ass swelling, followed by his thighs. More tearing sounds could be heard as the singlet started to give way at the bottom of the legs. His calves grew out, looking like footballs as they flexed and relaxed over the boy. A ripple ran through his brand new size 16 shoes as his feet burst threw them, tearing through the cloth on all sides, socks being reduced to shreds, his exposed feet now dwarfing the tattered shoes they just escaped from. The referee finally snapped out of his terror-induced trance and blew the whistle, fearful to even approach the still-growing behemoth. Everyone in the auditorium was silent. The sounds of pounds packing onto the kid could still be heard echoing throughout the room. Nate stood up, and up, dwarfing his opponent straddled between his legs and huge feet, and struck a double bicep pose for everyone to see. A shit-eating grin creeping across the kid’s face. His upper body was completely exposed. Every muscle on this kid was beautifully shaped and impressively sized. His forearms and hands looked as though they could crush rocks. His pecs heaved out, nipples facing down. Six beautifully crafted cobblestone abs met the last remaining bits of fabric that clung to the young man’s groin. He brought his big hands down to his waist and was suddenly reminded of the one part that hadn’t yet grown. He started to laugh, a deep, guttural laugh that was unexpected. His voice had started to drop, but now it’d dropped seemingly all at once. His eyes locked on his own bulge, he bucked his hips and his dick began to swell, right there with all eyes right where his were. John was still standing, frozen in disbelief. His son just exploded in size right over this kid. He couldn’t even fathom or process the size of the man standing down there on the mat that was his own son. And as Nate started laughing and bucking his hips, he instantly knew what was still to come. He was still growing, and Nate was about to show everybody his massive teen dick. Everybody would already be talking about this for weeks or even years to come, but John had enough focus left to break from his frozen state and race down to the mat. Everyone watched in awe as the already bulging organ between the boy’s legs began to swell to proportions unfathomable for any man, much less a child. Just as the tearing sounds picked up speed again and the head was quickly approaching the edge of the fabric, showing no signs of stopping, John reached his son. Quickly and effortlessly, the only man in the gymnasium bigger than this behemoth on the mat grabbed him and escorted him into the nearby empty locker room. Nate’s eyes were closed, totally focused on the growth happening between his legs. John propped him up against some lockers, surprised to see that his head was clearly over the top row. Nate spread his bare wide shoulders against the metal, and John heard the metal groan as the boy shifted his weight onto them. He kept his back arched, hips thrusting. Then, finally, and thankfully out of the public eye, his swelling member split the rest of his singlet and compression shorts, exposing his oversized member and balls to the air. The remainder of any clothing that once clung to the boy lay tattered at his massive feet. Once the open air hit it, Nate’s dick expanded in every possible direction. Out away from his body it crept, veins running along the shaft. Outward it stretched, no condom to confine it, and John was unsure he could find one to do so if he tried. Nate put one of his big hands on his dick, fingers overlapping, but quickly spreading apart. The other hand went and began to massage his balls. As his big hand cupped the lime-sized balls, they swelled. Stretching his young scrotum out to the size of lemons and then even further to something closer to that of tangerines. It was obscene, but marvelous. Nate was in a frenzy now. Bucking his hips, mouth hanging open, the boy moved both hands to his engorging member, his growing balls swinging heftily. The sound of his enormous balls smacking against his muscular thighs was erotic. He needed both hands to work his mammoth tool as precum rivaling any normal man’s entire ejaculation ran down the wide shaft, lubricating Nate’s strokes. His deep baritone voice grunting as he stroked. John watched in awe. He knew his son was close when he planted his feet and braced his entire naked back against the lockers, his huge dick pointed out and up. His balls still swinging, sent up a torrent of cum with an alarming amount of force. The sound of his cum splashing off the ceiling was deafening, and as it slammed into the ceiling, it ricocheted and showered the room. The force pushing back on the boy caused the metal lockers to buckle, and as John watched his son have the orgasm of a lifetime, he saw his muscles swell one last time, biceps ballooning out, abs protruding further, shoulders widening as his body shot wave after wave of hot, sticky cum from his gargantuan dick. As his dick shot out thick ropes of hot teen cum, his swelling muscles crushed the lockers under their weight. As his muscles continued to swell, they pushed the steel out of the way as if the material were as soft as clay. After several moments, cum stopped rocketing from his dick and began a more gentle flow, pooling in the floor. His muscles slowed their growth and finally stopped. Nate continued stroking, but sank to his ass on the floor with a loud thud. John knew his son’s body had hit its absolute limit. John was covered in cum, as was everything in the locker room, including his entire wrestling team’s belongings. There was a smell coating the room. Much like the smell that permanently lingered in his son’s bedroom, although this was stronger. This strong, masculine smell had worked its way into this room and everything in it, and it was never coming out. John was shaking from excitement when he turned and saw both Nate’s friend Aaron and their wrestling coach behind him, shaking, mouths agape in fear. John turned back to his son. “Nate! Are you alright?” In the ecstasy of his orgasm, Nate had laid his head back against the bent-in lockers and closed his eyes. A small stream of cum still trickling from his softening dick. He opened his eyes and took a deep breath. He looked up at his dad from his seated position on the concrete floor. “Fuck.” Was all he said in a deep voice that took them both by surprise. “I think wrestling is over. Let’s try to get you cleaned up and home. We can worry about what we’re going to do about all this later.” John turned and in a voice that was much more intimidating than he intended, asked the two behind him “Well, what are you two going to do?” The coach and Aaron had been mostly shielded from the cum shower by John’s wide body. The coach took the job of somehow keeping everyone out of the locker room and trying to explain the situation away while Aaron helped John get the showers started so Nate could get cleaned up. As John helped his son to his feet, he was relieved to see that he was still shorter than John, but not by much. They got Nate into the showers, but he was almost too wide to fit into the stall easily. As the warm water ran down every crevasse of his young body, Nate became more alert and was eventually fine with finishing his shower on his own. His head and shoulders several inches above the stall door. Nobody spoke as the large boy stepped out of the shower and toweled off.After his shower, John pulled his truck around to the back of the school, and a naked Nate climbed in, adjusted the seat back, and was taken home. Even though John had made Nate shower, the smell of sweat and semen filled the air. John rolled down the windows letting the cool air wash over them. It did little to mask the smell. Neither of them spoke until they got home and the naked muscle teen walked through the doorway, his hair brushing the top of the frame. “Damn, still not taller than the doorframe.” He bellowed, still unaware of how to keep his booming baritone voice down. “I mean, what the hell Nate?” John started. “Where do we even begin to talk about what went wrong there?”“Dad, I swear, it just happened. I couldn’t control it! The kid had me at my limits, and then I just started to grow, and…well, I grew. A lot.” Oh! Let’s see how tall I am now!”And for someone his size, it was a surreal reminder to John that he was still just a kid. John grabbed the marker and tape measurer and marked him off right under the doorframe. 6’7.8” bud. Nate let out a big sigh. “I’ll get there eventually I guess. Now, before we look for clothes, I want to measure this boomstick. Hand me that measuring tape, Dad.”“Nate, after what we just went through, do you really want to—““Yes, I do. Now hand it over.” Nate held out his hand, his deep, young voice carrying much more authority than it did before. John handed it over and watched as Nate took a deep breath and measured it soft first. “Fuck, it’s 6.2 inches soft! It’s bigger than most men’s before I even get it hard! And when it gets hard! Fuck! I’m a FUCKING GROWER! NOW GROW MAN GROW!” Totally enthralled by his size, he cheered on his massive dick. John thought to himself that his own dick was a little larger flaccid, but it didn’t grow nearly as much as Nate’s did when he got hard himself. Nate’s big flaccid dick twitched and rose up and out. Veins coursed down the member as it swelled out, thicker than most men’s fucking forearms. Nate took his big hand and grabbed the bottom of the head and guided it out away from his body. He squeezed it, testing its softness. He wanted it to be at full mast before he measured. It didn’t take long before the impressive rod jutted out from his young body. He took the measuring tape, pressed into his pelvic bone, and ran the tape down the long, wide shaft. He passed eight inches with plenty of room to spare. He got to his old measurement of nine and just sailed right past it. When he got to ten inches and still wasn’t done, he looked up at his dad. “Look at how big your growing boy’s getting! His teen dick’s not only bigger than most men, it’s bigger than his giant dad’s! Ten, ten and a quarter, ten and a half, and look here TEN AND THREE QUARTERS WITH ALL THIS ROOM LEFT!” Nate bit his lower lip and bucked his huge teen dick, his balls swinging wildly. John watched in amazement as the tape ran to eleven inches and was just reaching his giant mushroom head. “Can you believe how fucking huge this tool is? It’s insane! Eleven and a half and there’s still more…” Nate finally reached the tip of his penis head, which looked to be bigger than most kids his age’s fist, and read the measurement. “Fuck, you’ve gotta be kidding me. Eleven point fucking EIGHT inches? Can’t I have a solid foot? Is that too much to ask? Well, I’ve got plenty of time to grow I guess. Let me get girth.” He wrapped the tape around. “Well damn, 8 and three quarters perfectly. That’s a shit ton of growth in one day. Are you impressed?” Still holding his dick, he turned and looked at his dad, almost dead in the eye. John didn’t know where to look. His son’s gaze was so intense it made even him uncomfortable, a feeling he hadn’t felt in many years. Anywhere else he looked he had to see at least a portion of his young son’s massive “boomstick” as he’d called it and his giant balls. John was certain he still outweighed and outmuscled his son, but for how long? This was getting out of hand. “Nate” He started in his most demanding voice, “Get outside and take care of that thing, and then get back in here. We need to talk.” Nate just smirked as he marched by his dad, the hallway seeming incredibly too small for both of them. As his massive son turned sideways to get by, he made sure to give his old man a good view of the dick that reached up his young cobblestone abdominals. It was comical, but alarming watching the broad-shouldered kid strut through the house with his insanely huge dick jutting out from his young muscled body. He crossed the kitchen and went out the back door and into the chilly evening February air. John walked himself over to the still-open backdoor and watched as his son did not make his way into the woods. He simply stopped right outside the door, the woods still a few yards away. John saw his son’s wide back illuminated only by the light coming from the back door and the celestial bodies. Nate turned sideways to look at his dad. “You want me to blow my fucking load in the woods? Fine, but I can fucking do that from here now.” And just as he had only a few minutes ago, he took both hands and began to work his massive dick. Within seconds precum began to flow from the big slit. He used this as lubricant as he bucked his hips. The sound of his giant balls slamming against his muscular thighs sounding every bit as erotic as it did in the locker room. Nate was grunting as he thrusts his rod into the night air. It was warm for late February, about fifty degrees, but John didn’t think that the temperature would have mattered or made a difference in this case. Nate stroked it hard and fast for about a minute, and then suddenly stopped. He started taking deep breaths, but did not release his hands from his dick. Then after another moment he started up stroking again, falling into a cycle of stopping and starting again. John knew what he was doing. He was trying to build up his load, the question was why.“What are you doing?” was the best way John could figure to ask the question. He waited for his third or fourth rest period to ask. Nate ignored him and started up another stroking session, slowing down and stopping before answering his dad. “I told you. I want to be AT LEAST 6’8! I want to fucking hit my head when I walk through doorways. And I want this dick to be AT LEAST a foot long! I’m still close to the growth spurt! I can get a little more out of it if I just build this up and concentrate! NOW LET ME CONCENTRATE DAMMIT!” His deep, loud voice booming throughout the forested countryside. John watched in anticipation. He didn’t know what he wanted to happen. On one hand, he was terrified of his kid turned into a behemoth. Nate was addicted to this growth and it was a scary thing as a father to watch. However, it also filled John with pride to see his son be confident, demanding, and huge. It was kind of a turn on to see his “little boy” standing before him now, wide back, big bulging biceps, taller than most men, stroking a dick that would put the majority of the animal kingdom to shame. He wanted more for his son. He wanted to see how far this would take him.John stood in silence. Years ago he would have gagged at the thought of watching his own son masturbate, but after the recent events, it seemed natural to him. He’d demanded confidence of his growing boy, and here was the fruit of his labor. Nate had been willing to show everyone in that gymnasium what he was packing. He had no reservations. He was huge, he was beautiful, and the world deserved to know. There were no crickets chirping, no birds singing, just the sound of the cold wind rustling through the trees and Nate. His grunting was getting more animalistic. John could tell this was getting difficult to hold back, but Nate was determined that this would work. “Just a little more…nnngh…I can feel it…rising up inside of me…every time I start and stop…I feel it inside…getting just a little stronger…nnnghhhh…I’ve done this, what twenty or so times now?…nnnggghh…It’s getting…harder…nnngh…but I’m going to hold out until I know…I’ll be bigger…than you…bigger…nnngh…than every fucking man alive…I’ll be too fucking big for school…nghhhh…every man will be jealous of me…be terrified of me…John listened to his son, and decided not to intervene. In two days the Army was going to come and at least try and collect Nate for their own purposes. John was in no way sending Nate to school the next day regardless, and so he would take Friday to explain what had happened in the lab and what the Army’s intentions were. He’d explain the contract and the serum and why Nate is the way he is. He’d explain it to him and let him make his own decisions. Nate was already one of the biggest men alive, so it’s not like John had true authority over him anyway. He watched Nate struggle to bring himself to the brink and back fifty times or more. His willpower was awe-inspiring, but his stamina was not limitless. He could tell the toll everything from the growth to the immense orgasms was having on his young teen body. He could smell the precum as it had been oozing down his monstrous shaft and had been pooling in the grass. That, mixed with the sweat John could see glistening off of Nate’s skin, pooling in the many dimples and running over the many bulges of his muscular teen body, made for the manliest smell John could imagine. “This is it…this is the most I’m going to get out of this…ahhh fuck it hurts! My fucking balls!” And leaning against the doorframe at the back of the house, John watched another growth spurt. This time it started in his teen son’s balls. As his hands stroked his massive shaft, covered in precum, his balls that had been slamming against his powerful thighs began to swell yet again. “Oooooooohhhh ffffffuuuuuuck! YES!” Nate screamed.Nate took his hands off of his shaft and grabbed his balls, pulling them away from his thighs and cupping them in his huge hands. They swelled from tangerine-sized to peach sized and out further still. They continued to swell in his huge hands, eventually overflowing as the scrotum continued to expand as his balls reached the size of large, ripe pomegranates. His hands unable to contain them. He squeezed the engorged sack, massaging his enormous testicles, but he did not cum. Instead, he hunched his back forwards, and rolled his shoulders out, causing them to expand as he did.His shoulders expanded outwards both in size and away from each other, taking the rest of his back with it. John moved around to the side to get a more complete view of his growing son. The sounds of his bones and muscles growing rapidly was audible in the empty night air. As he grew wider, he began to grow taller. He stood up straight, and his torso and spine elongated, reaching the boy taller towards his goal. “nnnfffuck yeah! I’m definitely taller than any fucking door! Taller than dad now!” Nate grunted as his legs extended him upwards further. John was standing a few feet from his son, but as Nate’s legs creaked, he knew that his son was actually surpassing his 6’10 frame, and not stopping there. Nate took his hands away from his massive ballsack and brought his arms up into a double bicep pose. He instantly began bucking his hips again, the weight of his ballsack throwing him off a bit as he did. John thought his arms could have easily been seventeen or eighteen inches around, but now they were growing again. Nate looked at his arms and flexed them repeatedly, growing them larger with each pump. He opened and clenched his fists, causing his hands to expand. He reached his arms out from his body, and they grew longer as well as thicker. He struck another double bicep and John was stunned. The biggest John’s arms had ever been were 21 inches, and here it looked as though Nate was surpassing even that. Nate placed his big hands on his waist and flared out his back, causing yet another minor surge upwards as well as his pecs to heave outwards. Massive melon pecs pulsed outwards, forcing his nipples apart from one another and down towards the ground. His nipples even seemed to grow in size to match the new expanding chest. Inches away from his body they grew, creating a shelf of pectoral muscles. Underneath them his fourth pair of abs were coming into view as his torso stretched to accommodate. All eight pushed out of the skin like bricks. The striations of his obliques growing more defined as his torso thickened and stretched. His legs had already grown significantly longer, but now they were growing thicker. The new space was quickly filled up with diamond-cut quads and huge calves. His son’s quads were thicker than most men’s chest. His lower legs were bigger around than most hardcore gym buff’s biceps. Nate shifted his stance to make room for the new leg muscle, and as he did his feet grew yet again. This morning he had put on a pair of size 16 shoes. He’d burst through those earlier this evening, and now they were growing yet again. His toes snaked along the ground as his entire foot pushed forward and outward. Nate’s giant feet leaving marks in the soil as his still-increasing weight caused even the ground to give way. But he still had not blown his load or grown a fraction of an inch on his dick. “So…fucking big…so strong…but….nnnnghhh…maybe I…NO! FFFFFUUUUCK GIVE ME MORE!” And it was as if another wave washed over the boy. He surged taller still. His neck heaving outwards and his traps rising to meet it. His shoulders and back pushed even further apart and still elongating. John looked up at his son, the tallest and sexiest man alive.Yet again he flexed his arms. They expanded outwards again, muscles reaching sizes John nor Nate thought possible. His arms grew longer as did his legs, making him increasingly gargantuan, yet incredibly proportional. John heard the bones in his hands and feet cracking as they were yet again expanding. As his frame packed on size in every possible direction, John was unable to keep track or accurately estimate the size of someone bigger than anybody he’d ever seen. His legs yet again swelled with more than enough muscle to support his tall frame. Nate was breathing heavily. He was now so huge that his deep breaths sent a deep bellow that cut through the night. He turned towards his father and looked down at him. A smirk crept across his face as he bellowed in a bass voice deep and loud enough to rattle the dishes in the kitchen, “Not finished yet. What’s all this manliness without some goddamn body hair? I look like a fucking baby!” Nate clenched his fists and the oddest sound emerged, the sound of a huge body growing body hair. As of now, the only body hair Nate had was a decent bush around his dick and some patches in his armpits. He had a light dusting on his arms and legs, but now that dusting was growing thicker and darker. Hair crept down past his wrists and ankles. It grew out of his behemoth pecs and sprouted between his abs leading down to his big dick. His boyish face lost that quality as a 5 o’clock shadow dusted his entire manly jaw. “Now, take a good fucking look. I’m the biggest fucking man alive, except for one thing. Shit, look at me! I’m so fucking huge I make a dick bigger than most men’s arm look small!” And it was true. After adding on so much to his frame, even though John knew that the actual size of his son’s dick was nearly a foot long, it somehow looked, small on his frame. That coupled with the magnificent ballsack made the actual penis seem lackluster. Nate let out a roar as his growth entered its final stages. He reached his mammoth hands down and enclosed his footlong dick inside of them, dwarfing what most men would consider godlike. “FUCKING GROW! LET’S MAKE YOU INTO THE BIGGEST COCK ANYONE HAS EVER FUCKING SEEN!!!” And just like that, he channeled his power into his cock, and it grew. It passed the foot mark in seconds, but it was still picking up speed from there. It swelled within his hands as Nate stroked it. Each stroke of his huge hands filled them a little more. It grew in length and girth, quickly looking more proportional to his huge body, but not stopping there. John wasn’t entirely sure how big livestock penis were, but as he watched his son’s already massive dick continue to swell and grow in his hands, he imagined a stallion would feel shame in its presence. It continued to swell and grow, veins running along its surface. The head of it looking so round and plump, too large to ever fit into anyone with any form of comfort for that person. It was now too long for his hands to cover all of it, so his double-handed stroking really took off. From here it continued to lengthen, but also thicken as it pushed his big fingers apart. His huge ballsack now looking small in comparison to the gargantuan shaft. So much precum had been released by this point that he was standing in a puddle of the stuff. And just like that, he turned to the forest, stroking his fuck cannon with all of his might, and he let out a deep, powerful roar. John covered his ears as the roar cut through him. The windows of their home exploded along with Nate as he fired off a load that shot clear over the tops of the trees. As his behemoth son shot gallons of cum across their neighborhood in a godlike display, John watched as yet again his body swelled upwards and outwards one final time. His ballsack playing catchup with the huge artillery above it, and his legs expanding upwards and outwards to hold the weight of it all. His core thickened and strengthened as well, and his spine and upper body muscles stretching out to continue to support it all. Round after round he shot, trees shaking, collapsing to the ground under the power and weight of his powerful teen semen. Nate didn’t stop stroking it until it was completely drained. Their entire backyard saturated with his young seed. The forest behind their home ravaged by his apocalyptic orgasm. Their home shaken to its core as though an earthquake had struck it. Slowly Nate’s massive dick receded down and became limp. How the boy still managed to be a grower after all of that was beyond John’s comprehension. John had somehow fallen to his knees during the rumbling of Nate’s explosive eruption, and he stood up felt small for the first time in his adult life. Nate approached him and looked down on his father. John reached up to his son’s hairy abs, and Nate could have bent down to rest his huge pecs on his father’s head if he so chose. This meant that he was almost eye-level with his son’s cock, and if he had been hard, it would have extended well above his own head. John didn’t have words to say. He knew Nate was waiting on them, but there simply weren’t any. So he let Nate do the talking. His deep, buttery voice still rattled John to his core. “How’s that for a growth spurt. Go inside and get the fucking tape measure.” John struggled to process that the deep masculine voice coming from the goliath hairy man was that of his son’s, but he complied without speaking. He brought it out and let Nate measure himself. “Eleven feet and two inches tall! FUCK YES!!! I’m the biggest man that’s ever lived!! The fucking ground gives way under my feet! MY ORGASMS CAN TAKE DOWN A FOREST! AND I AM FIFTEEN FUCKING YEARS OLD MOTHERFUCKERS! I’M STILL A GROWING BOY!!!!” All of the tattered pieces of the glass, brick, and metal around him clattered on the ground has he shouted this to the world. “Now, I’m fucking beat.” Nate said, in a much calmer tone. “Dad, I’m going to need you to start cooking now. When I wake up I’m going to be so fucking hungry you’re not going to know what to do with me.” And with that he cracked a smile, stretched his gargantuan arms out, let out a massive yawn strong enough to change wind patterns, and collapsed to the ground, further shaking the ground. The monstrous lad sprawled out, taking up the majority of the backyard, and fell asleep on the ground in a pool of his own cum. His muscles so thick and dense that no mattress could even make a difference. John sat down, relieved for it to finally be over, even if only momentarily. The quiet of the world returned to them, save for his son’s breathing, which resonated like a bass drum from deep within him. He thought back to the time when Nate was in the 6th grade and carried that tree. How did we get from a child carrying a fully grown tree to that same child mowing a forest with his own seed? It was truly unbelievable, but here he was, right in front of him. Should he have really called the Army labs then? Would they have prevented this outcome? John realized that this was no time for speculation. He picked up the phone and called Amelia Lawson.“Corporal Peterson, this is unexpected.”“Life is full of the unexpected Ms. Lawson. You can have whatever you’re willing to deal with as long as you can get to my location ASAP with two trailers full of prepared food.”“Ummm, Corporal Peterson…prepared food? I’m not interested in feeding the hungry. I’m simply interested in studying your son’s genetics.” “Come by sunrise, with the food, or I can’t guarantee you I’ll be around when you do. Bring what I’m asking for, and the boy is yours…good luck.”
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