Growth Caption: Giantess Jenna (Patreon)

Giantess Jenna

You awoke to the sound of a door creaking open as you heard light footsteps going down the stairs in the middle of the night, you sighed thinking to yourself slowly getting out of bed and putting on your slippers to check it out.

"It's probably Jenna, she's been having trouble sleeping recently." You reassure yourself eventually going out of your bedroom and downstairs, turning the corner of the hallway only to find the basement door open and the light turned on.

"Hmph. This girl never listens...I told her not to go down there when I'm not around." You start to feel nervous knowing you left your lab equipment out from last night. "I should probably make sure she doesn't touch anything." A stray thought nagged at your mind. "Damn it, I left the formula out to oxidize. I swear it is going to revolutionize modern medicine, but I haven't had time to properly test it yet."

You hasten your movements making your way down the hall toward the door when suddenly you see it open further revealing your short and sweet stepdaughter, Jenna.

Her long long brown hair shimmered in the dim light shining up from the basement, she was small and very petite, loosely fitting into her pajamas at her short height of five feet tall.

She closed the door behind her, trying to sneak upstairs when suddenly the hallway light flicked on. She gasped and then started to blush to see you standing vigilantly in her way.

"Jenna…?" - "S-sorry dad." She stammered slowly approaching you seeing her small figure line up to yours, her head a few inches below your shoulders, she was close to a whole foot shorter than you.

"What were you doing down there sweetie?" You pry seeing her eyes having trouble looking into yours, looking down at her.

"Um…just looking around…mmm…" She stopped for a second cooing softly while feeling her heart begin to beat faster as she started to tremble, shaking her small body.

"It's ok, I won't get mad, just tell me what's going on." You reassured her as you noticed beads of sweat trickling down her slight cleavage when suddenly they bubbled up growing fuller and larger.

She rumbled again, seeing the rest of her body rising up and not going back down. Something seemed off, her pajamas were tighter at the top as you looked down at her she suddenly shivered letting out a soft moan.

Her head rose up higher and then didn't come back down. Everything about her seemed a bit…bigger. You could see her sleeves were riding a bit farther up her forearm, even her PJ top was now looking tighter on her chest.

"I was just like awake in my bed for a couple of hours, I got bored…nngh." Her sentence trailed off as her chest rose again, now filling out her top as her two lumps began growing into large breasts, rapidly growing from a meager B cup to a C cup.

She moaned a bit louder as she rose taller, noticing she was gaining inches as she passed your shoulders in height, growing into five and a half feet tall rather quickly.

"Jenna…did you take anything when you were down there?" You tried to pry again as she started to moan louder, you immediately noticed more sweat drops beading down her neck towards her ample bosom as she began unbuttoning the first button on her pajama top and mumbling to herself.

"It's so hot in here…awhn." She started to tremble again, rising up and becoming taller, noticing her eye level begin to get closer to your height.

"Sweetie…please tell me you didn't drink the formula I had sitting out on the counter…I haven't tested it on humans yet." You gulped nervously watching her breasts grow bigger and bigger to make a long line of cleavage on her chest, rapidly increasing in cup size, filling out into the larger end of a D cup.

"Awhn god…you said…it could make things grow bigger…and I've always been short and flat-chested! Not anymore! They feel so heavy now…I love them!" She blushed, reaching down and grabbing onto them, massaging them and moaning as she trembled with growth, they jiggled with size filling up into DD cups.

"Well…it looks like it's working...a bit too well." You approached closer to her body as she jumped up again in size matching your height as her eyes finally locked with hers.

"Yeah…no kidding…I'm already as tall as you…mmm...wait…they feel even bigger, I’m still growing!" She clenched her teeth and then let go exhaling, breathing heavily, feeling her heartbeat getting faster as her body shivered for a moment, becoming curvier in her legs and thighs filling out her pajama pants.

"Wow…I can see it. You’re getting bigger…it’s really affecting your body rather quickly…how much did you take?" You both watched in awe as her breasts developed further growing into triple D cups overflowing in her buttoned-up top starting to push against them.

"Oh god…they're getting enormous…what do you mean how much…I just drank it." She panted like a dog in heat as another wave rushed through her body making her rise taller again a couple of inches higher growing bigger.

“Nngh…god…it feels so…good!” Your perspective dropped lower down from her eyes to her nose, and then to her full juicy lips as she outgrew your size passing six feet tall and still growing taller.

Her pajamas started to stretch, straining under her growing body as her pants rode up her legs toward her knees, her top filled out stressing the line of buttons down the seams of her chest.

"Shit…Jenna…that beaker wasn't even properly dosed out into samples…you're going to keep growing...maybe you should step outside." You tried to avoid staring at the openings between her top, hardly containing her growing breasts, but they soon began to rise up to your eye level as she continued to grow bigger and bigger, rising another half a foot taller.

"Whoa…you look…so short now…nngh." She looked down seeing your head now close to her massive cleavage that continued to rise upwards closer to your face.

They began to bubble up bigger again, filling up into melon-sized mammaries, into luscious F cups finally popping the buttons off her top as she yelped in response.

"Holy shit…Jenna, you're growing so fast!" You barely could muster any other words as you watched her body grow even larger and thicker, her breasts bulging off her chest trembling with growth as she passed a G cup in size.

"I'm getting so big!" She moaned loudly, booming in size again as she rose up and up, watching your perspective drop down below her breasts that only rose taller and grew bigger into H cups as she ascended to seven feet tall about to burst out of her nighttime clothes.

"My god…Jenna…you're like an amazon now." You started to panic seeing her body bulging from every torn seam of fabric from her ruined clothes and growing thicker still, gaining weight on her thighs and legs as they grew faster and more powerful slowly ripping her pants until they were forced to wrap around her growing body now like tight shorts around her huge Kardashian sized ass.

"I feel really tingly…and whoa…kind of dizzy." Her body trembled visibly, shaking and growing bigger and wider as her hips expanded to match her now huge bubble butt growing fatter and more incredibly round, suddenly tearing open the back of her pants to show her jumbo-sized ass bulging out of it.

"Oh my god…I'm growing out of my clothes…these pajamas are ruined." Her body had transformed from a petite brunette into a curvaceous amazon goddess, standing over seven feet tall as her body trembled again, growing taller and heavier.

"Jenna! You have got to get outside, you're growing way too much!" Your perspective dropped down further past her breasts toward her belly as she grew bigger and bigger, motioning closer to your head now smaller than one of her massive breasts that began expanding again another cup size larger into tremendous J cups.

"Aww! Fuck! It feels so good…come on…I'm just starting to have some fun." She roared with pleasure massaging her body and moving her hands toward your head.

You tried to back up away from her as she latched onto the back of your head, ruffling your hair and giggling to herself as she pressed you up against her newly grown basketball-sized breasts.

She smothered you in her ocean of huge boobs, feeling her incredibly soft and huge size against both your cheeks, mashing them together as you felt her heart beating fast and breath exhaling and inhaling rapidly.

Another rumble shook her body, feeling it vibrate through her chest, they grew bigger around your head, you felt your face bury in deeper as she rose taller, bending lower to keep you trapped in between them as they grew into watermelon-sized K cups.

"When is it…supposed to stop…mmm…god it's so intense…awhn!" She moaned loudly as you heard the remains of her torn pajamas tear off her body falling to the floor as she rose to a towering eight feet tall.

"Mmph…mmph!" You tried to speak, still being smothered, hardly able to breathe between her squishy spheres, hearing her giggling as you continued to let out muffled noises through her chest.

"Oh…sorry…I didn't realize you were stuck down there." She released her grasp, standing back up straight as you heard a dull thud.

"Ow…oh fuck…I just hit my head on the ceiling." She laughed loudly craning her entire top half down to yours sticking out her huge swollen breasts between her arms squishing them together and smiling.

"Well the ceilings are about eight feet tall in this house…so…maybe you should get in the living room." You gulped nervously as her eyes began to get heavy, feeling her hands tighten around your shoulders and the back of your head.

"Ugh…I feel really…weird…nngh!" You felt her strong arms drag you into her luscious curves, and immediately met her massive cleavage that now enveloped most of your torso and head as she smashed up against them. You felt your strength wane, completely helpless against her rapidly growing body.

"Wait Jenna- mmph!" You were smothered again, helpless in her booby trap, bouncing and jiggling as she held you against her sofa cushion-sized breasts.

Her entire body rumbled with growth as another spurt began expanding her physique again, she squealed feeling the edges of the hallway walls begin to dig into her hips, still growing wider and larger.

"Oh fuck…I'm growing again!" She finally fell forwards slamming her breasts into your body, smashing you against the floor with them.

Her body only grew more gigantic as she quickly approached nine feet tall in height, she was probably close to seven hundred pounds or so with the rest of her incredible curves, humongous chest, and a giant bubble butt.

"Where are you? Oh god…it’s not stopping! Nngh!" She called out to you, unable to find you squashed under her giant breasts when you felt her body trembling with growth.

She expanded outwards busting through the drywall with her growing body, smashing through it with her expanding hips as she continued to grow even more titanic.

You could feel her reaching around at your smaller body, trying to latch onto your arms as she grew taller and grew bigger gaining strength and size rapidly.

The walls finally buckled, breaking and crashing around her growing body, moving through the rubble of the hallway, she grabbed onto you and tossed you in the living room before sitting up and laying against the sofa.

Her huge ass began to rumble with growth as she smashed everything under it as she landed on the living room floor. It crushed the coffee table as she sat down not realizing her butt was the size of a sectional sofa now as she grew past ten feet tall becoming a mini giantess.

"Sorry…about that…" She blushed looking down at her chest slowly rising with every few short breaths, watching them expand past her vision to you below her humongous size.

"It's ok…listen we need to find a way to get you outside before you grow any bigger. Jenna! Are you hearing me?"

You gulped nervously watching her breasts begin to grow another cup size larger into tremendous L cups, slowly starting to massage them and motion her other hand toward her cherry red vagina oozing with anticipation.

"Yeah…I guess you're right…awhn…ah…ah…ah…fuck! I'm so huge now." She started to touch herself, thrusting her index finger inside her soaking wet pussy, starting to moan furiously.

"Jenna…I'm serious." You tried to act assertive, watching her legs start to slowly move further across the carpet as she rose taller, growing bigger and bigger, rising closer to eleven feet tall.

"Yeah…awhn…fuck…yeah…bigger…" She ignored you as her breasts began expanding even larger, filling up and up as they grew several cup sizes into monstrous O cups as she continued to reach a climax clutching her now beach ball-sized boobs.

"Jenna!" You yelled to no avail and watched in horror as she moaned louder and louder, rumbling with growth as she rose taller to twelve feet tall, seeing her body begin to fill the living room space as she grew bigger and heavier.

She moaned louder and louder when she finally came, trembling and moaning as she squirted all over the living room carpet, suddenly shifting in size as she grew even larger and another foot taller to thirteen feet getting closer to the ceiling sitting down."God, that was incredible! Haha…god you're really looking tiny now."

You couldn't believe your eyes, seeing your short stepdaughter transformed into an amazon goddess and still growing bigger and stronger, you didn't know what to do.

She started to rumble again as she laughed to herself and looked down, motioning her hands over her tremendous breasts as they suddenly grew bigger and bigger, growing cup size after cup size inflating into beachballs, watching her nipples expand into two-liter bottle-sized monsters.

"It just won't stop…I keep growing and getting bigger…and bigger…awhn…and bigger…" She moaned hearing her voice echo through the lower level of the house, placing her hands on the ceiling. She blushed feeling her breasts touching the floor at their new size as she felt her body surging with erotic sensations and growth energy.

"Bigger…" She uttered during her overwhelming sensations taking over her movements. Her massive body rumbled with growth filing out the living room space as she grew a foot bigger to fourteen feet tall.

"Bigger!" She chanted again growing bigger again to fifteen feet tall as she got close to the ceiling watching your standing perspective drop to her chest as she nearly reached the top still sitting down.

"BIGGER!" She roared with pleasure as she ascended to sixteen feet tall, hearing a loud crack as her head bumped into the ceiling sending dust around them.

"Jenna! You're getting huge, you can't even fit in here anymore!" You desperately tried to get her to move, so your house wouldn't be completely destroyed by your unexpected science experiment going awry.

"Oh…this is your fault…you wanted me to get this big…otherwise you wouldn't have left it out in the middle of your lab station…awhn…" She grinned devilishly massaging her giant breasts seductively as they trembled slightly growing bigger and pulsating towards him.

"Well…I-" You tried to explain yourself as she cut you off. "I knew it! You're such a pervert…" She giggled jokingly as she began to move her hands closer to her engorged nipples that started to leak milk.

"Honestly…it feels amazing…I've never felt like this much of a woman before…it's empowering, I want more…mmph!" She grinned devilishly before biting down on her juicy nipple, sucking out all of the milk. She groaned as she began to rumble with growth.

"Whoa…hold on Jenna…if you get any bigger you'll destroy the house!" You stepped back hearing her muffled giggles turn into powerful louder moans as her body filled out, even more, becoming insanely luscious and massive in size.

"I wanna be HUGE!" Her body surged with growth filling up the living room, her feet made contact with the wall rapidly growing to meet its size and then barrel through it unable to fit inside any longer.

You tried to escape, running through the destruction all around you as you heard her echoing moans getting louder and louder as she grew into a titanic giantess.

She bulged outwards, out of the windows and doors of the house, breaking and destroying everything her growing goddess body came in contact with until she finally outgrew the entire house.

Her titanic body was sprawled out panting heavily laying across the debris of your home as you looked onward a block down the road, still running for your life.

You heard a crashing sound that echoed down the road, hearing two loud crushing steps as she stood up to her towering height demolishing anything her body came in contact with at her incredible size.

Her voice echoed throughout the neighborhood loudly, moaning and groaning hearing the sounds of rumbling as behind you now getting closer.

You tried to run, feeling the ground beneath you begin to tremble and crack open, jumping across the chasm, but instead of your feet hitting the ground you feel a strong grip around your entire body as you're whisked into the air over fifty feet high still climbing upwards.

When suddenly you're met with your stepdaughter's absolutely gigantic face, you look down past her giant hands wrapped around your entire body to witness her nearly sixty-foot tall giantess frame.

"You didn't say it would make me this BIG! I'm a real Giantess now, I can't believe it!" She laughed loudly, grating on your ears as she shuffled her gigantic legs making more craters on the road with every step she took.

"A giant…what?" You yelled up at her huge body, she giggled tremendously, vibrating your entire body with every sound that she made.

"A Giantess! Like in the movies, I must be like fifty feet tall! This is fucking awesome!" She grinned devilishly scanning the suburbs across the surrounding countryside seeing the city not too far away at her size.

"This is insane…the formula was never meant to make anything grow this much, it must be interacting with your pituitary gland…creating an endless super hormone-fueled growth spurt cycle...mother of god…"

"Whoa…I feel it again." Her body suddenly began to tremble, shaking your whole body like an earthquake starting to rumble beneath her tower-sized legs.

She quivered feeling her pussy start to leak, beads of her juices started to flow down her legs and onto the concrete roadway under her as she squealed in pleasure.

"Hey!" You hollered up to her titanic ears, but she ignored you, starting to moan and blushing a deep red.

"You'll be safe in here…awhn…between these babies." She stuffed you inside her massive endless ocean of breasts, feeling your body get inserted between her mile long line of gigantic cleavage.

There was nothing you could do now, but watch your now super-sized stepdaughter get even bigger, her moans lasting miles becoming distant as her echoes bounced off the hills in the faraway local countryside.

You tried to pull your arms out from her long pocket of breast flesh, but it was no use. She was growing bigger as you struggled, watching the ground slowly drift further and further away under you until the distance became miles long, stretching past your tiny perspective.

She grew and grew, doubling her size as she reached an absolutely mega-sized one hundred and twenty feet tall, she was beyond big, her truly giantess sized body was four times the size of an average suburban home.

Her giant legs strode off destroying the street road as she moved toward the highway to wreak havoc on the downtown city buildings with her massive giantess body.

She stomped toward the city, her footsteps sending tremors across the pavement setting off car and house alarms across the neighborhood.

She reveled in her new size mashing her toes through the concrete as her feet continued to make massive holes in the road and hillside striding across the suburbs with her humongous legs.

You tried to yell, but you were smaller than a speck of rice on her cleavage, barely audible at her size seeing her stride past skyscrapers and hearing the sound of crushing rock and shattering glass accompanied by a constant thump and terrible rumbling.

Every titanic step she took the world shook underneath her giant legs, trampling down the road as you shook violently between her jiggling mountain-sized breasts.

Eventually, you lost your voice and gave up, feeling her chest begin to dig deeper into your body, crushing you as you slowly continued sinking into her titanic cleavage.

Everything begins to fade as you slip deeper between the folds of her truly giantess-sized chest, sinking into her breasts as you're engulfed by her towering three-hundred-foot-tall body rising taller past the clouds.