Jack's Attic @madjackbrock - Tumblr Blog

quilly72-deactivated20250515

"April to lab 3... April to lab 3 for a systems check." The pa blurted out into her office. April rolled her eyes as she grabbed her clipboard and started meandering through the halls. Her heels clacking against the hard cold floors. Her footsteps echoing as she passed the labs. As she peered In through the windows checking on the various projects her company was working on.

Lab 1 was busy burning one of their plants that had been exposed to plant fertilizer. grapes the size of a fist popping and exploding as they outgrew their environment. The vines crept out into the hallways as the team tried to contain its growth to one room.

Lab 2 was much less destructive. Their love potion seemed to be working wonders as two of her co-workers were currently sprawled against the floor. Hungarily tearing their clothing off. She smirked as she called it into the radio that lab 2 had had a chemical leak... Again.

Finally she pulled up to lab 3. Punching in the code as she readjusted her button up. She priced open the door as she slinked into abrupt chaos. Technicians and scientists running to and thro. In the center of the room a sparking growth ray haphazardly swinging in a circle. A tech furiously typing into the computer as the machine started to shirt to life. A bright bean forming at the tip of the nozzle "it's gonna fire FIND COVER." April shoved the tech down as she tried to take control of the situation. Clearing the error codes as she punched in the manual override.

The growth ray swung around and violently spasmed as the room started to shake. A large hum filling the room deafening any sound. Stephen the senior tech screamed at her but she heard none of it as she punched in the final commands. She turned to look at the machine as her eyes opened up wide. Too late. She realized as a bright green beam shot out at hef. She barely had time to think before it splashed into her. She gasped and shrieked as it shoved her to the floor. Her skin glowed and throbbed as she felt the heat course through her. Her body hit the wall behind her with a smack as she thudded to the floor. The machine powering down as everyone gathered around April.

Meanwhile in a haze April was cautiously trying to stand back up. Not having fully realized what had happened. She opened her eyes as everyone surrounded her. "What.. happened." Before any could respond April felt her body shudder and rapidly heat up.

April snapped back as she felt her body get hot with wave after wave of energy. In tandem her body responded by growing larger with each rush of heat. The first to respond was her chest which made its entrance as it billowed forward. Her blouse stood no chance as her measly cups expanded into a letter April didn't even know was possible for her frame. Her buttons snap off in quick succession. Her bra lifted off of her as her boobs bulged over and under the fabric. The straps loosened and dug into her shoulders before they snapped off entirely. April quickly raised her hands to cover as she sat up. April tried to turn as a couple scientists caught an eyeful. "Stop looking you perverts".

She felt herself cool down as April raised herself up. She peered down into her cleavage as she slinked her blouse off. Her shirt no longer capable of covering her. She stood awkwardly as she saw a couple people bust out measuring tapes and cameras. "For research purposes" she muttered as she let them approach.

She stared coldly as they wrapped around her. Noting measurements and radiation levels. she felt her skin grow warmer but she attributed it to nerves. Everything seemed normal except of course her new bust size. Meanwhile April felt a nagging pressure inside of her. She tried holding it back but it seemed to grow and grow and "FUCK"

April screamed as her skin glowed and expanded. Her body filled the room as she doubled her height. Her butt ruptured her skirt in half as her leggings and shoes exploded off of her. Her panties popped off into a technician as he fell to the floor. Aprili raced to cover herself with a hand now at 10 ft tall but felt the feeling grow again. "I'm not stopping" she screamed before she doubled again.

Her head smashed into the roof as she recoiled off of it. Groaning and yelping In pain as her head met the 20 ft ceiling. A tech slammed the panic button as the sirens and red lights flooded the room. April turned to and thro as she tried to figure out how to leave. The techs rushed out the emergency exit as she felt her body pressurize.

"wait don't leave me somebody..." She doubled again. She tried to brace for impact but her head easily smashed the floor as she raced in. Her cleavage similarly busting the floor open as it punched through. Her head hit the second ceiling as she peered over her cleavage to the screaming attendants in lab 8 who were currently watching a woman fill half the room. Her waist at eye level.

"HELP MEEE" she screamed before she filled the entire room. Her body smashed them as she doubled again. Her feet below her filled the entire room as she bursted through the facilities roof. Her waist stuck in the framework as she tried to get away from the carnage and panic she was causing. Her body pressurized and glowed again. "nooooo"

She grimaced before filling out again. Over a hundred feet tall. Her head rushed with vertigo as her cleavage dragged her down. The survivors watch as a hundred foot...AAAAHHHHH...THREE hundred foot April crushed the lab in one fall. What they weren't expecting was her to suddenly swell closer. April raised to her hands and knees as she spurted again. Her feet dug into the soil as they raced across the road and hills each one falling to either side of the surviving scientists as her butt encroached in front of them. Her boobs dragged into the building as her head raced forward a couple hundred feet. Before anyone could react it was too late. A butt the size of a col de sac crushed the group in seconds. She spurted again and again her body filling the country side as April gave up. Groaning and crying as her body finally sizzled out after filling half the state.

sunsleptos-deactivated20250610

Peridot’s Pear Predicament

With Lapis unwilling to help Peridot’s shapeshifting experiments any further, she’s been forced to target herself for all future testing needs… but science comes with a heavy cost — sometimes, iterally.

asoftgoth

shes just like me fr

quilly72-deactivated20250515

Hitomi let curiosity win her over. She pulled her husband's laptop out of his bookbag after he had left it behind. He was always so protective of it and she had always been oneto snoop.

Her husband still wasn't due for another hour so she opened the case up. The bright screen flashing across her face as she typed in his password. She filled in the prompt as the screen unlocked. "You think after 7 years he would change it" she smirked.

The pages flew open several tabs and searches restoring their progress as Hitomi watched them flash across the screen. She surveyed the landscapes as she motioned the mouse over the options.

Tax reports. Billing notice. Steam account. Gmail... "Weird"

She fumbled over the final tab hidden in the background. Giantess.

She opened the tab as it popped forward. The search engine showing several graphic pictures more than likely her husband's porn. She backed up. Going back several searches as she shielded her eyes. "Is this really what he looks at."

She kept backing up till a website popped up. No more pictures just an ad.

"your wish is my command" she read the website title

A green button floating in the middle of the screen. Underneath a picture of her that had been imported.

She scrolled down. "Are you sure you want to continue" her husband had obviously never pressed the button apparently growing self aware.

Meanwhile Hitomi hovered over the button. This is what he wanted maybe she should indulge his fantasy. Without thinking she clicked the button. The computer flashed brightly blinding her as it lost power.

The computer fell of her lap to the bed as she shot up off of it. "What the fuck was that" she rubbed her arms as her skin crawled and tingled. She moaned as her body strectched and released energy.

"what's happening" her body began shaking. Her skin trembling. Her legs wobbling as she felt vertigo rushed her head. Her eyes full of panic as she trembled. Her skin her body it felt electric to the touch. Her body feeling Wave after wave of static rush past it. Her vision tunneled inward. As she braced her body. "Help me" she winced as she felt her body tighten and pressurize like a bomb.

Her face contorted as she wrinkled her nose.her eyes clasped shut as she sputtered and whined.she leaned against the wall as her legs grew weak. Her body heating up as her energy began rapidly piling onto her.

"mmm mmmm ahhhhmm. Help I'm gonna help someone it's HEEeeEELLpp"

She shrieked as she shot up.

Her shirt shot up her body turning to an overburdened crop top as her torso lengthened. Her legs shook as her yoga pants tore in the back. The fabric thinning against her thighs and calves.hef hips surged wider as her pants slid up her legs. Her calves exposing themselves as she winced.

Hitomi tried to recover her breath as she felt her bra pop off underneath her shirt. Her cups surging forward lifting her shirt off her body. Her bra falling at her feet as she gasped. Her eyes opening wide as she stared at the ceiling.

Hitomi stumbled as she adjusted to her new height.her clothes constricting her movement."how tall am I how did this".

Her body tightened again her body heating up."NO NOT AGAIN PLEASE"

Hitomi braced against the wall. Her former 4'10 body now resting at 5'10"

Hitomi shook and gasped as she heard a car pull into the driveway. The whites of her eyes exposing as she gasped in. Her body heating up rapidly as she trembled. Her knees whacking I to each other. Her legs indented Inward as if to cover her pussy. Her feet slid across the floor as her body rocked back and forth. She clasped her face shut as she groaned. The pressure building up. Every muscle growing tighter. Her skin strectching against her body. Her bones seemingly spasming inside of her. Her entire body building up energy as she struggled against it "no no no please no I can't do this what am I gonna do what am I gonna wear pleeaas..."

She shut her mouth as she yelped. Her body surging with wave after wave. Tears formed in her eyes as she struggled. Her head rushing with vertigo again. She gritted her teeth her face wincing as her energy built up. Further bigger larger "FUUUUCK"

Hitomi shrieked again as she shot up 2 ft at once. Her body barely under 8 ft as she heard the door open. Footsteps charging upstairs. Her shirt popped off. Her massive tits ripping it down her back as her yoga pants caved in. Shattering to smithereens amongst the ground. Her panties following suit as the tore off into the ground.

She heard the doorknob. Fumble as she grabbed a towel. Her head resting at her new height as she wrapped it around her. "Don't come in"

The door flung open her husband standing in shock he stumbked forward as he reached out a hand silently. Hitomi grabbed it as she leaned forward and bent her knees. "Help me"

"how did you do this"

"the computer I unlocked if and hit the button on the ad and it just..."

She winced her body heating up again "it's not stopping. Please"

He. Nodded as he raced towards the computer.

Hitomi gasped as her body began pressurizing quicker than before. "It's speeding up"

She grunted and moaned through gritted teeth. Her nose wrinkling as she crinkled her toes. Her arms pressing against the wall as she braced. Her body shook the room as she struggled for breath. "Can't stop help it's building up I'm gonna GROW"

Hitomi flew up. Her head bumping the ceiling before she fell to her knees. Her body shaking the room again. Her towel unravelled off her body as she fell. Her legs sprawling out backwards. Her ass billowing over her legs as she sat down. Her boobs filling her vision as her husband grew distracted.

"wedonthave time for this".

He shook himself as he focused on the computer typing furiously.

Hitomi rested at 12 ft tall. Kneeling she was still taller than her husband as she felt the energy build back up. "Shit not again"

It nearly overcameher all at once as she yelped. The energy billowing over her. She moaned through pursed lips as she spasmed. Her legs knocking desks and chairs over onto her. The bed next to her groaning as she bumped into it. Her eyes clasped shut as she felt her body tense up.

Mmmmm mmmm too much

Ahhmmpf ahhhh help ahhhh hurry.

Her energy built up her body heating up as she continued to whine and moan.

Ahhh ahhh it's happening ahhh AHHH AHHHHHHHFUUUUUCK

She orgasmed as she surged 8 ft taller. She fell to all 4s as her back pressed into the ceiling. Her body rushed over the bed splintering it as her husband bounded back into the corner. Hef body taking up half the room as she curled into a ball. She peered over her shoulder as he slipped out the door. "Wait DONT KEAVE ME HERE YOU HAVE TO FIX THI..."

"FUCK NOT AGAAIIN "

Her body trembled and spasmed. Ahhhhmm her legs pressing against the walls her back bending the ceiling as she stuffed for room ahhhhhh.

She pressed against the roof trying to force it open with no luck "commme OooOOooNn.

Her body locked up as it pressurized her face clasped shut against the pressure.

Mmmmmahhh ahhhhb not again plEeeasaEe

I I can't keeeeep groOoOwing AAAAAHHHH"

Her body flattened against the ground. Her head and feet billowing through both walls. Her legs dangling outside of her house as the neighbors stared. Her head stuck in her loft as she tried to free herself. Her ass cracking into the attic as her back pressed against the ceiling.

Before she could even try anything she heated up again.

She barely even tried as she approached orgasm. Her shriek piercing the air as her house collapsed around her. Rubble raining around her as she felt herself cum over the wreckage.

She looked at her surrounding as she sat up. Her head soaring higher as she orgasmed again. She cooed as she shot up. Her legs growing I to the couldesac the neighboring houses creaking against her ass. "I'm sorry I think I'm done" she said at 75 ft tall unknowingly as her husband pressed the button again as hedrivedkwn the free way.

gtsdreamer2

everything-alice

madjackbrock

Grabbing live electric wires as the power flows into me and makes me grow even larger.

“Ohh…..yes…more! You twerps are so FUCKED…more…BIGGER!

B I G G E R !”

madjackbrock

Jack and Garg perving on a sorority party.

“Like, ohmygod, did you see those two losers at the door? They thought they could just show up to the Eye Felta Thi Pink Pussy Party without an invite? Totally. Lame.”

The chorus of laughter is cut off by an unnatural rumbling, and the sorority house cast into increasing darkness.

“Hey! It’s not supposed to storm tonight! What’s that noise, you guys?”

A violent, meaty thumping at the door drew the sisters’ attention, before the entire door was blown apart. A cock, six feet long and still throbbing and growing, burst into the entrance, to the occupants’ collective terror.

Running to the side door or trying to check the windows was no help, as they were entirely blocked by mounds of unyielding, hairy fat. The phallus at the door pursued them, getting larger and harder by the second.

At that point, the roof and second story were ripped from their sorority house, and gigantic eyes leered down at them.

Gargus licked his lips. “It wasn’t nice to turn us away, little girls. We want to drink and have fun, too…”

Jack shrugged his massive shoulders. “Doesn’t matter. We brought our own drinks.”

On cue, he produced a tiny blue bottle between his fat fingers, taking a long drag before handing it to his companion. Garg followed his example, and the girls screamed anew as the obese titans started growing again, ignoring their would-be crushes to fondle and tease each others’ swelling body.

So horny and enraptured in playing with each other, they didn’t even notice the the house and its occupants being flattened under their swelling, churning balls.

madjackbrock

Going to grow into a giant while wearing these.

madjackbrock

You scream when you look out your highrise window and see my titanic eye leering at you when you undress.

There’s a rumbling sound as I eagerly double in size and push my enormous erection into your entire apartment.

“Fffuuuck, you’re all miiiine…”

madjackbrock

Jacking Up Jill

The wiry brunette stood impatiently in front of the drive-in screen, rolling her eyes at the frantic activity in front of her. Jill MacGarrie casually drew a line in the sand with the heel of her sandal as she waited for her companion to get on with it.

“Don’t hurry or anything,” she sighed. “It’s not like there aren’t way better ways to spend my time than roasting in the sun…”

About fifty feet away, Jack held up a pleading hand for a little patience as he used his other hand to manically adjust an odd apparatus in front of him. It stood about five feet tall and looked like a film projector at first glance. At second glance, one would notice the odd shape of the lens, or that it didn’t actually hold film. A third glance would make clear that this thing, whatever it was, only shared a silhouette with a film projector, but no amount of gawking would make its hideous purpose obvious.

“Breaking the laws of nature takes time,” Jack insisted as he continued to fiddle. “And I’m almost done. I told you, I have a very specific set of skills…”

Jill rolled her eyes again, with such disdain that the effort was almost audible. “And I told you, they need to be put towards making me BIGGER. Now.”

Jack nodded quickly. “I get the idea. A little patience would be nice, but…lucky for you, we don’t need it anymore. It’s ready.”

“Lucky for you, not me. If you disappointed me, you’d be walking back to town.”

“We’ll still be walking back to town, babe,” Jack smiled, flipping a switch on the device. “And everyone will see us coming!”

There was an electric hum and an alien smell almost like but also entirely different from ozone. An indigo beam show from the not-lens on the not-projector, striking Jill squarely in the chest. She gasped as if she’d been struck.

Her second gasp was as if she’d been struck in a particularly sensitive area. It segued into a moan with little prompting. Her lithe body shivered and then shuddered and then convulsed, each wave of motion seeming to generate more of the girl into existence. She grew taller and wider by the second, meat and mass piling onto her frame as the formerly-trim girl got FAT as well as inhumanly tall. Chins and belly rolls and thunder thighs multiplied by the second as she continued to writhe in agonized ecstasy.

Jack took a step back to take in his success as well as secure his own safety. She was blowing up FAST, the last clothes she’d ever be able to wear shredding off her body like an overfilled balloon.

“Ohhhh…yesss….”

Jill’s voice was getting deeper, more baritone, surprisingly un-feminine as she hit fifteen feet, then twenty, then fifty in the blink of an eye. Jack couldn’t see past her massively-swelling tits, and then he couldn’t see past her newborn FUPA.

He shuddered as the wave of her body heat and the fine mist of her sweat swept over the area. How big was she?

After a minute that was also an eternity, her expansion stopped. She towered over the big screen behind her, over the treetops and utility poles…

Jack held back a manic laugh. “Ohhhh, baby…you’re so…HOT! I can’t wait to join you.”

A low rumbling emerged from the corpulent Titan. It took Jack’s ears a moment to realize she was speaking.

“‘Join me?’ You wish, you fucking runt. Zap me again. I want your shot of this thing, too.”

Jack turned pale, a cold sweat overcoming him despite the humidity caused by the giant girl’s presence. “But…but our plan!”

“I got a new plan. It’s called: grow into a fucking GOD. Zap me again. NOW. Or you’ll go in here for a while.”

The thunderclap caused when she slapped the hillside of her fat ass shook Jack to his core.

“Well…I wanted a big bitch. Shouldn’t be surprised when I got one,” he sighed, as he flipped the switch again.

Jill’s manic laughter rolled through the land like thunder.

madjackbrock

Jack let the big bitch laugh, even as he casually swung the device 180 degrees. “Like I wouldn’t have a plan in case you double-crossed me…”

Due to her immense size and girth, it took Jill a moment to realize what was happening. Where she expected another feeling of euphoric expansion, she instead felt only confusion, disappointment, and as she looked over her tremendous fat tits…dread.

The beam was going, all right, but it was going into Jack, with a much greater intensity. The boy’s body was expanding, fatter and wider and taller by the second, his clothing ripped apart under the unrelenting onslaught of meaty mass.

“Ohhhh…yesss….”

He moaned, voice getting deeper with every syllable as his body grew, an avalanche of hairy masculine fat. He licked his thickening lips as he looked the terrified Jill in the eyes…then looked down on her as he continued to grow. The ray beam had ended, but Jack continued to expand, a living, breathing hill of gluttony and lust.

Yes, lust…as Jill found herself staring UP at an obscenely massive erection larger than her own massive body and still throbbing bigger by the second.

“Did you think you were gonna be the one in charge, you skinny Bimbo?”

Jack bellowed as he continued to swell, a meaty hand groping his cock.

“It was ALWAYS going to end like this…you’re just the first girl I get to play with…”

With a perverted moan, he reached for the screaming giantess with his free hand…