Experimental Variables

Experimental Variables

Ashley yawned as you smiled over at her waiting for her to lock eyes with you.

"Hmm? What?"

She smiled back giggling a bit as she got up to approach you.

"What's that?"

Her cute little finger pointed at the small bottle in your hands as you hesitated to show her.

"Oh come on…you always tell me about your work stuff."

She leaned onto your shoulder pressing her meager B-cup breasts against you.

"Human growth hormones? Breast expansion? What are you even talking about?"

She looked a lot more interested trying to take it from your hands.

"Come on, let me see it at least."

You let her take it.

She looked puzzled, going to twist off the cap immediately stopping her and taking it back.

"Aw! Come on! I just wanted to see what it looked like."

You shook your head taking the vial and twisting off the dropper.

You carefully made sure to fill it all the way up with the creamy white growth serum.

"Mmm…ok..."

She smiled grinning as you gently placed your hands on her lips parting them as you lifted the dropper up and squeezed it all into her mouth.

You watched as the long glass dropper released the creamy substance onto her tongue and down her throat.

She swallowed it with a big gulp and looked back up at you in surprise with her eyes wide.

"Mmph! I thought you didn't want me to have any…wait what is that stuff going to do to me?"

She smirked as you explained it was all part of the experiment and that the company had put this project in the freezer so to speak because of some unknown variables and didn’t want to run any risks.

"Oh…so I'm your little guinea pig, huh."

She crossed her arms looking at your neck at her eye level a whole head smaller than you at her average height of 5'3.

You nodded pulling her close as her arms unfolded and wrapped around your waist.

You sensually began grabbing onto her small perky B-cup breasts hearing her moan softly as she embraced you.

"You've got me all worked up with all this science talk…come on…"

She kissed caressing your wide back as she let out muffled moans.

You felt her tight apple bottom butt in your palm able to firmly grasp it and rub her pussy with your fingertips with each passing stroke.

She was melting in your arms, quivering with every soft tender touch on her pussy, feeling it start to get wet.

You whipped your throbbing member out thrusting it forward and pressing against her aching vagina as she reached back and pulled down her panties.

The two of you fucked intensely for some time as she only seemed to want more moaning louder and louder.

She was ravenous as you told her you were about to bust she quickly turned around and fell to her knees.

Your cock entered her mouth feeling her cute lips and tongue wrap around it sucking eagerly awaiting you to finish.

She moaned loudly as you grunted finally firing off a load listening to her let out muffled moans gulping it down throbbing inside her wet mouth.

She swallowed and giggled, still catching her breath.

"My…my…that was a lot."

She smiled getting off the floor and hugging you tightly as you felt yourself release all that tension that was building throughout the day.

"Aww…is my big man all tired out? Come on, let's snuggle."

The two of you popped onto your full-sized bed wrapping your arms around her small and petite body and drifting off into a calm slumber.

The night was a bit uncomfortable at times as you adjusted several times throughout the long early hours before the morning broke.

Ashley had begun to grow bigger slowly becoming taller and growing large bubbly breasts slowly becoming more hourglass shaped.

She was transforming, becoming curvy, and filling out all over.

Her body grew bigger and bigger taking up more space on the bed as her cute ass and small breasts began to plump up.

Her head slowly rose closer to the edge of the bed frame as her legs grew longer and thicker growing immensely luscious thighs to accompany her new strong legs.

You awoke at random moments in the night feeling something being pushed against your crotch only to reach down and get a handful of her now big bubble butt that was growing bigger rubbing against you.

Your hands quickly fell between her growing curves around her bulging body as she continued to grow thicker becoming even more voluptuous.

Her chest grew matching her big plump ass filling up and up gaining cup size after cup size.

They filled up her loose tan tanktop building up on her chest as they grew into luscious round double D-cup breasts.

You could feel her still growing bigger against your body as your arm was starting to get numb from laying her now much larger head over it.

You thought you were dreaming slowly dozing off into a deep sleep again for a much-needed few hours of rest before the sun rose again.

You awoke again feeling cramped as you pulled your arm and head out of a tangle of her long and luscious blonde hair.

Your eyes immediately were drawn to her fantastic ass that had grown even more bodacious.

It was now stretching out the seams on her tight black panties wedged in between her beautiful booty cheeks.

You couldn't help but reach down and grab it, getting a large handful squeezing in your palm and looking down at her underwear that looked more like a thong now.

It didn't seem to wake her hearing her soft moaning under her long-winded breathing.

As your eyes wandered over her tall shoulders you lifted yourself up looking at her chest in awe.

They had grown again, now over six cup sizes starting at a meager 34B has grown into huge bountiful 44G’s with juicy swollen nipples each the size of a gumball.

Your mouth salivated a bit in excitement realizing that the experimental drug was a success looking down at her luscious newly enhanced physique.

She began to wake up opening her big amber-colored eyes as she yawned and turned over to you.

"Good morning!"

She smiled looking over at you as she quickly spotted your massive erection staring at her new incredible assets.

"Oh! Looks like someone is happy to see me…wait why are you staring at me like that! OH MY GOD!"

She screamed jumping up as her huge bouncy bosom jiggled moving up and down settling before being scooped up by her curious hands.

"They're huge! Holy shit!"

Her hands massaged their huge bubbly size playing with them as you watched her nipples get rock hard.

"They're so big and so soft…mmm! I love them!"

She continued to knead her large double G cup breasts mashing them up and down and around twisting her nipples listening to her moan seductively.

You watched her eyes slowly pan down to your cock throbbing in your boxers practically pointed at her chest.

"Mmm…you like the results of your little test?"

She crawled over her big tits swaying side to side as she approached your underwear pulling it off.

Your massive throbbing cock popped out of your boxers.

You've never been this hard before.

She was gorgeous, her tiny little body was now curvier than you ever could've imagined.

She looked much taller too, which was the least of your worries as she motioned her now much more bountiful heart-shaped lips close to the tip of your dick.

Her long tongue licked it giving it a taste before kissing it a few times before putting it all in her mouth.

You were in ecstasy feeling her big luscious lips wrapped around your throbbing shaft going in and out of her warm wet mouth was amazing beyond belief.

Her head continued bobbing up and down swallowing your dick back and forth suddenly fitting your entire shaft down in her throat gagging.

You couldn't hold it back any longer busting your creamy load into her mouth.

You gave her a big mouthful of your seed pumping your dick between her lips as she guzzled it down happily.

"Mmph! So much…mmph…"

She lapped up the rest of it, licking it off her lips and mouth, sucking her fingers giggling as her big body jiggled.

You let out a long sigh looking down at her as she rolled over to the edge of the bed standing up beside you.

She slowly rose up above your head now standing a whole foot taller than before.

She stood over your head now at a strong 6'3 nearly half a foot taller.

You could hardly believe she had grown this much in a single night.

Perhaps filling the dropper full of the serum was too much for her previous short and petite body.

The experimental growth serum had affected her tremendously.

She had tripled her breasts in size and her ass had grown over ten inches in width into a ludicrously large bulging bubble butt.

Either way she was quite big now and nearly started crying out of pure joy seeing her tall busty body now taller than yours.

"Oh my god! I got taller, way taller!"

She exclaimed, hugging you tightly as you felt your upper torso get smothered by her huge breasts.

"Look at you…you're so cute…"

You could see her smiling devilishly as she began to hatch a scheme filled with lust and even more growth.

"I must be like over six feet tall now."

She cooed, hugging you tightly.

"Mmm…you feel so small in my arms now, I feel so strong and sexy. I love it…"

She smirked whispering in your ear seductively.

"Although…there is some room for…growth…don't you think?"

You tried to reason with her, telling her that you didn't think she would grow this much off of just a small amount.

"You don't want me to grow? I could have huge tits, like big fucking juicy monsters…come on…at least let me have a little more."

She hugged you even tighter as you started to wane asking her to stop.

"Oh…you're so cute, try and escape. I bet you're too small now."

You struggled to play along as you truly couldn't push past her strength, she had outgrown you.

"Oh my god…look at you…you can't do it. I'm too strong for my big handsome man now."

You repeated your point from before as you began to feel winded still gripping her waist and chest unable to make her budge.

"Aww…am I hurting you? Sorry…I'll let you out if you give me another dropper full of that delicious growth serum."

You were running out of options feeling her squish her giant breasts against your smaller frame starting to make you lose any hope of escaping her tall and busty body.

"Ok…how about…just a couple drops…I promise I won't hold you, hostage, again, I've just never been this big before and I'm having too much fun."

You finally sighed agreeing to give her just one more drop.

"Mmm…I knew you wanted to see if I could grow again. OK! I'm ready whenever, bring it here…"

She finally looked pleased as you felt her arms release her tight grasp around your body.

You shuffled your shoulders stretching a moment as you felt stiff and slightly sore from her incredible strength wearing you down.

Your mind began to race thinking about how much she would grow with just one more drop getting nervous.

You went to the nightstand opened it and picked up the vial going back to her with it as she opened her mouth letting her tongue touch her bottom lip in anticipation.

You hesitated slightly seeing her so eager to take more of the experimental growth serum, lifting it up to her lips and measuring out another half-dropper full.

Carefully a single drop landed on her tongue and she didn't even flinch as you pulled the dropper back.

She quickly snatched your hand, closing her mouth.

"Hey, did you give me a drop? I couldn't tell, here I'll just give myself one, don't worry I'm a big girl now, I can do it myself."

You felt her grip tighten and easily take the vial from your hands.

"Oh, and that measuring dropper thingy too please."

Your hands shakily held the dropper looking back at her as she took that from you as well.

"Thank you…mmph!"

She curiously lifted the dropper up and squeezed the rest of it into her mouth with one loud gulp.

"Oops! That was a bit more than just a little drop. Oh well…how much more is there in here anyways…"

She lifted the vial up to her face looking through it against the light.

"You know what…I'm going to take some more because that was only half and yesterday you gave me more so…yeah…mmph."

She measured out another dropper full of the creamy white serum draining it past her big bouncy lips and sucking it down in a few gulps.

"Mmm…so good, I really love how it tastes."

You quickly protested asking her why she took another full dose.

"Oh! Did I just do that? I'm so sorry, I didn't even realize I even took that much."

You shook your head rubbing your eyes for a moment trying to figure out how you got yourself into this situation.

You cleared your thoughts for a moment looking back up at her as you heard her loudly gulping down more.

To your horror, you watched as her big juicy lips latched onto the entire vial sucking down the rest of the experimental growth serum.

"Mmph…*gulp gulp gulp*"

You tried to reason with her, but it was no use, you anxiously listened to her loudly gulp down the rest.

Her lips popped off the top loudly as she licked her lips clean, drinking every last drop.

"Mmm…that was tasty. What were you saying? Sorry I got a little carried away. I drank the rest, I hope that's ok…"

You were speechless as you looked up at her wondering when her next huge growth spurt was going to begin.

You struggled to calculate how much size she would gain trying to estimate how much growth she would have from taking so much at once.

"Ooh…you look like you're really thinking hard…how much do you think I'm going to grow?"

She giggled for a moment, stopping as she felt a warm tingling sensation start to build up in her chest.

"Wait…I think I feel something…nngh!"

Her breasts bounced up and outwards growing fuller and heavier as she bit her lip watching them expand into huge milky melons.

They filled up and up another few cup sizes as they grew into beautiful bouncy J cups.

"God…they're really getting big now…maybe I shouldn't have had the rest of that bottle."

You watched in horror as Ashley's head rose higher and higher as her entire body began to grow even bigger.

"Mmm…I'm growing again…it feels so good…"

Your perspective dropped again from her neck down to her chest and directly on her humongous breasts as she quickly passed six and a half feet tall.

You listened to her moan softly rising up taller noticing her big jawbreaker-sized nipples get hard poking out from under her stretched-out tan tank top.

"Oh my god, look at you down there, you got even shorter."

She bit her lip moving her hand over your head measuring it up against her bountiful cleavage.

"You don't even reach my tits anymore…wow, I must be like…almost seven feet tall now!"

She actually wasn't too far off as she quickly passed six and a half feet tall starting to ascend over the height of most average doorframes.

She had grown a whole two feet taller than her original height already and it didn’t seem to be slowing down.

If anything her growth spurts were getting more intense and stronger with every bulging growth she experienced.

She giggled as your eyes immediately locked onto her giant breasts bouncing on her chest.

"Look at you…you can't take your eyes off of them can you?"

She hoisted them squeezing them as she let out a loud moan.

"I don’t blame you, they’re so big and beautiful now, I can barely hold them up. They're fucking huge…what am I going to wear?"

You gulped nervously bracing yourself as she grabbed your head, shoving her ever-growing giant tits into your face.

"What are we going to do…I'm so huge now I'm not going to fit into anything…"

She continued to pout and act distressed as you heard her let out another soft moan feeling her body begin to tremble and rise taller again.

"There it is again…nngh…that feeling…awhn!"

You watched in awe as she bounced up bigger and bigger, inch after inch she rose up taller.

Her tank top finally tore off her bubbling breasts as her body outgrew the rest of her torn and shredded clothing.

“Oops! There goes my top.”

She giggled as her huge breasts fell onto her chest as she continued to grow taller and even heavier watching your perspective drop from her bountiful breasts down to her belly toward her incredibly wide hips.

You watched as her tight black panties finally snapped off falling to the floor as she ascended transforming into a powerful eight-foot-tall amazon goddess.

“Oh! Oof!”

She exclaimed as her head bumped into the ceiling, you could barely even see her face at this point trying to see past her two gigantic mountains of breasts hanging off her chest.

She looked down in shock moving her hand over your head now much larger than it as she measured it up against her wide hips.

“Oh my GOD! You’re so tiny! You don’t even reach my chest anymore, look at you all the way down there, so CUTE!”

You immediately were smothered by her giant tits as she fell onto her knees and hugged you tightly, still a bit taller than you now even kneeling down.

“Mmm! Come here, my little man!”

She exclaimed lifting you off the carpet and hoisting you into the air like a child.

“You’re so light! Haha! I feel so powerful!”

She giggled as you were powerless against her incredible strength she laughed carrying you past the bedroom door like a newlywed bride, ducking under it several feet to avoid bumping into the doorframe.

You felt her strong arms holding you up and off the floor turning your gaze back toward her giant bouncing chest as you felt her tits squishing against your back and shoulders.

She bounced over to the kitchen table placing you on it as she smiled still ducking her head from hitting the ceiling at her new towering eight-foot-tall size.

She fell back onto her knees looking up at you now slightly taller sitting on the wooden kitchen table she smiled back a sighed.

“God…I really got a lot bigger now…I can’t fit inside anymore, do you think I’m going to grow anymore?”

You gulped nervously watching her start to tremble again as her body slowly started to have another major growth spurt, this time however you were worried that she would grow so much the floorboards might not be able to support her new seven-hundred-pound body, still gaining weight as she continued to grow exponentially.

You tried to estimate her size as she grew even taller watching her head rise up and up quickly matching your seated height atop the table.

“Ooh…still growing…mmm…”

Her head rose even higher and higher growing bigger and bigger as her body grew heavier finally starting to make small hairline fractures on the floor tiles beneath her tremendous nine-hundred-pound body gaining mass rapidly.

You watched in awe as she engulfed the space around her growing quickly past nine and then ten feet tall seeing her face draw closer to yours growing in size.

“Now that’s more like it…mmm…yeah…I’m so fucking big…are you ready to…have some more fun?”

You heard her giggling devilishly as she lifted her huge legs off the floor listening to them crack the tiles unable to hold her burgeoning body.

Her long blonde hair flowed down to her giant breasts as she hoisted them onto your lap spilling into an ocean of cleavage as you felt their incredibly jiggly size weigh you down.

She looked down giggling as her huge hands fished around in her cleavage looking for your member swallowed up by her giant jiggling breasts.

“Aww…where is it…my big fucking titties are in the way…can you help me? I really want it in my mouth.”

She bit her juicy lips licking them seductively as she began massaging her massive mammaries, squeezing them as she smashed them against your hard cock.

“Oh…I feel something now…hehe…”

She motioned downwards watching her huge head pass down and move her giant tits aside to see your throbbing cock nearly about to burst.

“There it is…mmm…mmph…”

Her huge lips latched onto it taking it all in her mouth at once at her new size, wrapping her big long tongue around your tip and shaft engulfing your cock in her wetness.

You were in heaven, feeling her giant mouth completely consuming your dick was an indescribable pleasure, like something out of a movie.

It was tight and soft and the same time, warm and tingling, with constant powerful sensations that nearly sent you into a sexual trance.

You couldn’t hold back any longer finally letting yourself cum hard, your legs shook as your huge throbbing erection finally erupted with semen filling her tongue up with it.

She moaned incessantly moving her head back and forth on your incredibly sensitive member barely able to even press out a thought as your mind lifted off into pure ecstasy.