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pecanwriter · 8 months

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Big Boy Mode: Activated

Themes: rapid weight gain, humiliation kink, technology-induced weight gain (so like, magic weight gain but for sci fi nerds I guess)

Words: 2947

Part: 1/?

"Hello, sir, would you like to hear about our newest product, the most revolutionary nanotechnology to date?"

Elliott really wasn't one to ever let some marketing lackey torment him with semi-logical babble about something he didn't even want to buy. But he was a technology whore, and just the mere mention of nanotechnology had him nearly salivating at the mouth.

He smiled at the promoter, stepping closer and trying to look at all the flashing screens at once.

"Introducing SimNano or Simulator Nano. This revolutionary technology is the newest hit in terms of body augmentation and we're making record sales all around the globe."

The promoter pulled something from his pad to one of the screens.

"The way this works, we inject nanobots into your body and connect their signature to your personalised control panel as well as a wristband, the wristband sold separately."

He watched as on the screen a scrawny shirtless man selected a holographic projection of his body and added 50% more muscle to the model. He clicked "Active Mode" at the bottom of the screen and for a moment his entire body rippled in an unfamiliar way until he stood there completely buffed out, Captain America style.

Elliott blinked. He looked from the freshly buffed-out man to the promoter.

"How does that work?"

"The nanobots we inject into the client's system are capable of replication and imitation of any human tissue. However, they are only capable of growing, not shrinking, it's not a diet pill as many would hope so." The promoter laughed at his own poor joke.

Elliot chuckled obligingly but the phrase "they are only capable of growing" was bouncing around in his head trying to make him hard.

"Is there a limit to what they can imitate? For example, if someone was missing a leg…?" He chose his words carefully, hoping the man would fall for his set-up and tell him exactly what he wanted.

The man's gaze flickered down to Elliot's leg and although Elliot had no such thing, he let the man assume he had a prosthetic. It was an unassuming lie, didn't hurt anyone, it was just better than even a sliver of the truth.

"Oh, they're absolutely capable of replicating a leg. As I said, they can imitate any human tissue, muscles, nerves, fat, even bones…"

When he said the f-word Elliot's cock jerked awake and he had to cover his crotch with the shopping bag he was holding.

"And are the changes permanent…?"

"No, that's not how it works, It's imitating and replicating the tissue in Active Mode, but as soon as it's Deactivated everything goes back to normal."

Elliot's cock was throbbing as he fought to maintain perfectly normal eye contact with the promoter.

"And while it's active, does it feel real or is it like a hologram or a model or…"

"Oh no, It feels absolutely real, that's why we are the leading company in…"

He prattled on but Elliot didn't listen, all he could think of was the phrase "it's only capable of growing" as his cock throbbed.

"How much is it?"

It was bloody expensive, as it turned out. Elliott put a sizable dent in the savings he was putting away to get a mortgage on a single-bedroom flat. But somehow, all he felt was excitement, there was no shame or regret to be found anywhere.

After he made his purchases he had to go to their branch store and get injected with nanobots. The syringe wasn't that big and he wondered if it would be enough firepower for what he had in mind. They scanned his body thoroughly to put the model into his pad and wristband and connect the nanobots to it. As a trial, the shopping clerk showed him how to give himself impressive biceps and everyone present at the shop oohed and awed at the result.

The promoter was right, it felt absolutely real. The rippling Sensation Elliott saw in the video felt only like a slight cold tingling under his skin and then within seconds the impressive biceps appeared.

He deactivated his SimNano, thanked the clerk and left, struggling to walk straight with his dick pressing hard against his trousers.

When he came home he almost immediately tore off his shirt. He brought out the control panel on the band with shaking hands and clicked on the scrawny little model of himself. He moved his finger around, highlighting his midriff and ass. He clicked "expand" and then in the tissue subcategory he clicked "fat" instead of the pre-selected "muscle". You could put the desired amounts in body percentages or in units of measurement. He clicked on lbs, the most precise one, and tapped in 20(9kg). Then after a moment's hesitation, he erased it and clicked 40lb(18kg) instead.

With shaking fingers he clicked "Active Mode" and his skin began to tingle with the cold sensation. Seconds later Elliott was staring down at a round, fat gut and he could feel his boxers strain mercilessly against his expanded ass.

He put the pad away gently and grabbed the ball of flab at his front. He was never this fat in his life, but it felt real enough, from what he could guess. He lifted the stomach and let it drop, watching it jiggle and wobble. A moan escaped him. He couldn't believe this was happening.

Before even getting a look in the mirror Elliott fell to the couch, frantically gnawing his flesh with one hand and stroking his cock with the other. He never came this hard in his entire life.

He finally managed to pull himself up into standing, revelling in how his gut was suddenly in the way and looked in the mirror.

He laughed, the effect was ridiculous. Although his belly and ass looked fantastic and absolutely realistic, it looked ludicrous on his scrawny body which remained unchanged.

Elliott deactivated the band and reset the model. After a moment’s hesitation, he selected his entire body “Increase by 100% body mass” and selected “fat” in the tissue category. He considered carefully and finally decided to increase his ass and gut separately on top of increasing the fat equally around his entire body.

Elliott’s finger hovered over the band, but before clicking the Activate button he checked the measurement box again and changed 100% to 200lb. Again, before clicking it, he wavered and finally ended up changing it to 300lb(136kg) with sweaty fingers. Adding 300lb to his meagre 132lb(60kg) would put him at a glorious 432lb(195kg), a fulfilment of a fantasy Elliott had since before he was even consciously aware of it.

Eliott pressed the Activate button.

He was still standing in front of the mirror and he let out a gasp as the nanobots went to work, making his entire body shiver with the unfamiliar coldness, the feeling much more overwhelming with tasking them to simulate 300lb instead of a measly 40 he attempted at first.

Elliott watched with intense, nearly blinding fascination as his body rippled slightly and moments later exploded into folds and bulges and rolls, becoming an unrecognisable mountain of flesh. He stared at the enormous gut, too heavy to be completely round as it hung in front of him almost like a massive, engorged flesh apron. His face was unrecognisable, swallowed by an enormous double chin and chubby cheeks, melting into the fat around his neck seamlessly. The man in the mirror couldn’t be him, could he? It was too good to be real… The fat man lifted his arm as Elliott lifted his, only his arm never had an enormous wing of fat hanging off it and jiggling as he moved. When Elliott moved his normal arm it didn’t send his entire massive body into wobbles, but the man in the mirror sure wobbled like an impressive jello dessert.

Elliott grabbed his gut, an enormous, almost all-encompassing mound of flesh hanging in front of him. He grabbed it, lifted it as much as he could and dropped it. The way the flesh shook and jiggled forced a moan out of him. Already half-hard again, he inched closer to the mirror. Elliott could barely move under the unknown sensation of this immense bulk and he almost stumbled into his mirror, nearly crushing it. Just the half step made his heart race with excursion and his lungs begged for air.

This SimNano thing was worth every penny, in fact, Elliott thought they were losing money. It was too good to be real.

He turned off Active Mode, in a few seconds staring back at this familiar skinny self with an impressive hard-on.

Staring intently, eager to catch every little detail, he pressed Activate again.

Watching his body explode with fat, filling out with blubber in mere seconds and leaving him unrecognisable was so impossibly erotic that he climaxed just from turning the SimNano off and on again, watching himself gain hundreds of pounds in seconds.

After he managed to somehow climax three times within the span of an hour he decided it was enough for one day, he was starting to feel light-headed.

He tapped Deactivate.

Nothing happened.

He tapped it again. Still, nothing.

He stared at the band, but it appeared to be frozen. Frantically, he started waddling unsteadily to his backpack where the main SimNano pad was. Walking across the room to his bag while suddenly 300lb heavier was incredibly difficult and equally, if not more, arousing. His giant thighs were rubbing against each other, he could feel he was hitting his enormous apron of a gut with each clumsy step… The enormous behind he’d given himself jiggled with every step and so did his soft, blubbery tits.

When he finally made it to his back and retrieved his pad Elliott was nearly ready to collapse with how out of breath he was.

The pad was as frozen as the band was.

“Fuck.” He whispered, looking into the mirror across the room. He was enormous, there was no way he could leave the house like this and he had a night shift at the bar today.

It was 5 p.m., and he had work at 8, so technically, he still had time. He could just… Indulge for a while while waiting for the SimNano to unfreeze.

Elliott laboriously waddled to the bedroom. He had a few pieces of massive clothing he sometimes wore while stuffing it with pillows and pretending he was huge. He pulled on a pair of tracksuit trousers. They could barely encompass his enormous ass. Even the biggest of his secret fetish shirts was snug on him now and his monstrous gut was happily hanging out at the bottom.

The flat needed tidying up and he also had to cook to have something to eat after his shift when he would undoubtedly be too tired to do anything.

He began busying himself around the house, every little chore making him hornier than the last one. Everything was a thrill, trying to wipe dust off the higher shelves and feeling how his enormous gut was hanging further and further out of his shirt, trying to wash dishes and finding that he could barely reach into the sink with the enormous mound of blubber in the front of him. When he went to clean the plastic shower door, something that he meant to do all week, he nearly got stuck in the narrow space and instead of trying to find the best angle to free himself he rubbed against the shower wall, making himself cum just with the friction against his fat body. He would’ve jerked himself off if the was any hope of reaching his penis under all that flesh, which there absolutely wasn’t.

With all the chores completed and with food prepped for later, Elliott went to check on the pad. It was still frozen. It was 7.20 pm.

He called in sick and trying not to freak out about it just yet he repositioned the mirror closer to the couch where he planted his enormous ass and began rubbing his flesh.

There was no need to freak out, he was sure the NanoSim would reset overnight.

Elliott woke up still on the couch and still as enormous as when he drifted off, exhausted by the almost constant sexual tension of the previous day.

He tapped the band. Frozen. The pad proved to be in a similar state.

Elliott tried calling the NanoSim Technical Support but they told him that there was nothing they could do remotely because there were health hazards involved, so he would have to come to one of their stores to get it reset.

Which meant… Going outside as a 432lb man.

Elliott ate his modest breakfast of a skinny man and wondered how it would look to an outsider, a guy who was nearly half-tone of blubber eating a modest portion of oatmeal.

Before leaving the house he pulled on a beanie and didn’t shave his unimpressive stubble. There was no way anyone would recognise him, but he still didn’t want to risk it.

His heart was pounding so hard that it was all he could hear as Elliott stepped out into the hallway.

Usually, Elliott just took the stairs from the second floor he lived on, but there was no way he was going to take the stairs today, he could barely move with all that unfamiliar weight on him, his waddle almost a caricature of itself.

There was a lady in the lift and when the doors opened she frantically looked between Elliott and the lift control panel informing all the passengers that the weight limit was 500lb. She was slim, but there was no way she was less than 100lb.

“You go on” Elliott smiled at her and she pressed the button to close the door almost frantically.

He wasn’t sure if he actually WAS 432lb or if the nanobots just made it appear so to him, but he wasn’t going to risk it.

There was an Uber waiting for him, but Elliott had to cancel the ride when it turned out that he couldn’t fit in the car.

With his dick painfully hard and trapped between mounds of flesh he selected a different ride, making sure it was big enough to accommodate for a massive hog like him. He barely fit and his gut filled his lap completely. The driver was visibly disgusted and Elliott’s already painfully hard dick throbbed under his apron belly.

Waddling and puffing his way through the shopping centre to the SimNano store was the most humiliating and gratifying experience of his life. Everyone, without exception, stared at the giant man barely waddling his way through the halls, his too-small shirt riding up his enormous gut and his face flushed with the effort of putting all that blubber into motion.

When he finally made it to the store he was heaving, his breath rasping and his entire body sticky with sweat.

The only person in the store was the clerk, a teak-skinned man with a mop of black curls and bright, quick eyes. He was very much Elliott’s type and the fact that he had to talk to a handsome guy while his enormous gut hung out of his shirt and he was so out of breath was arousing beyond all reason.

“Hello, I’m Omar, how can I help you?”

“Hi, I… uff.. Sorry… I have a problem with my SimNano, the program froze last night and it’s still frozen.” He handed the man his pad, still trying to catch his breath.

“Let’s see here…” Omar took his pad from him and when he saw the program the SimNano was frozen on he slowly looked back up at Elliott, his lips stretching into a mischievous grin. Elliott felt like his entire face was on fire. Somehow it didn’t dawn on him that the clerk would see the program he was running. If he could, he’d bolt it out of the store in embarrassment, but he couldn’t, not when he was this massive.

“Let me just do some troubleshooting here.” Omar said, his smirk still on his face as he plugged the device into a PC and started clicking.

“Alright,” he said a few minutes later. “It looks like I got it, but let me just check…”

“What…”

Elliott watched with growing terror as Omar proceeded to add another 50lb(22kg) to his program and activating it. Elliott staggered back, feeling his gut hanging marginally lower, the waistband of his tracksuit digging just that much deeper into his blubber.

“Just to double check, better to be sure.” Omar said, adding another 50 on top of that.

Elliott had to grab onto the counter as the enormous weight started to threaten to topple him to the ground. He was heaving just from the sheer effort of standing up.

Omar’s cheeky grin was turning downright mischievous.

“I think it’s working now.” the clerk said, bringing the program down to its original +300lb setting.

“T-thank you…” Elliott panted, taking his pad back and thanking all the Gods that his gut hid his erection.

As he was waddling back to the entrance Omar’s voice stopped him in his tracks.

“Ey, fat boy.”

That nickname alone nearly made Elliott give an ungainly moan, right there in the middle of the shopping centre.

“Y-yes?” “Give me your number, I write NanoSim codes in my spare time and big improvement to the overall experience. I mean…. Huge improvements.”

Omar’s grin was pure evil and Elliott was sure his own was no better as he gave the handsome man his number.

This was going to be fun.

PART 2

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