Late-Night Snack

You awaken abruptly in the middle of the night to the loud promiscuous sounds of feminine moans coming from outside your door.

You had no idea the time or what was even happening as you walked into the hallway sleepily seeing the only light coming from beneath your stepsister's door.

You quickly paced over to it huddling down beside it, placing your ear against it to hear her softly panting and moaning seductively.

You knocked quietly as the door suddenly creaked open revealing your step-sister except something was much different.

She was bigger.

A lot bigger.

She was practically busting out of her light blue top holding what looked like to be her boobs now inflated into huge bountiful volleyball-sized breasts.

They were enormous.

You were mesmerized by their size and incredible softness pushing against the tight fabric of her clothes barely able to contain them.

You struggled to try to recall her small perky breasts before starting to get entranced by their size and jiggly nature as she bounced over to the door.

She rushed over opened it and grabbed your collar pulling you inside.

"Shh…come in and close the door."

She whispered, still panting heavily as she drew you close and looked up at you about a head shorter than you, the top of her head reaching the bottom of your chin.

"Just be quiet…and- awhn…"

Her head rose suddenly like she stood on her toes, but didn’t come back down.

She looked up at you slightly embarrassed as her hair fell down in front of her eyes brushing it aside.

"Don't say anything to your mom, please. It’s not fair she’s got the biggest fucking tits in the house…well….not anymore…"

Your eyes wandered down to her chest which was much bigger than you realized up close and personally looking down at them spilling out of her top.

"Oh…you like them? They've been growing like crazy, I used to be a B-cup remember? Yeah…I've been growing a cup size bigger every ten minutes or so...I don’t know how big they are now…I kind of lost count, haha."

You asked her what she was doing and why all of her clothes suddenly looked so small.

"Can't you see what's going on? I took a bunch of those expensive growth gummies your mom ordered recently, I can’t believe she kept the whole bottle in the fridge."

Her head bounced up rising higher than your chin as she giggled starting to really put a strain on her low-cut tank top and tight jeans rising up above her ankles and straining around her wide waist.

"Look at me, I'm getting so busty! I can't believe your mom said she was taking this for her anxiety. I saw her search history yesterday on her laptop and it was filled with all these websites and Amazon searches for breast enhancement and growth hormones. You should’ve seen it, breast expansion, giantess, growth enzymes, all these crazy search terms I’ve never even heard of, I swear she's obsessed with growing bigger!"

She continued to explain as her body continued to grow bigger, becoming taller and heavier with each inch she added to her growing height she also added to her fuller chest expanding further as your watched her head rise up past your nose.

"I don't blame her though, but she wasn't fooling anyone after growing those two big double DD-cups in under a week. The jokes on her, my tits got way bigger! Although…I gotta say…I think those special active growth enzymes they keep mentioning on the bottle have started messing with my hormones because everything feels…I don’t know how to explain it…smaller?”

You watched her body continue to expand and fill out her jeans pushing them to their limit as her big bubble butt grew even larger against her backside expanding against the tight fabric of her pocked blue pants.

“They're already way bigger than hers, they are probably in the G-cup range by now and they’re still growing too. Her bras wouldn't fit me even now if I tried."

She wasn't kidding she grabbed onto them shaking them around as her tank top dug in more and more filling up and up as her top suddenly tore down the middle releasing her now bowling ball-sized breasts onto her chest.

"Whoa! Hey…did you just get shorter? We look like the same height now…what the hell."

You looked over at her in horror realizing she had now grown to match your height and size quickly panning down at her huge breasts now pressing against your chest as you felt her body begin to get heavier again.

"I guess I’m getting taller too…maybe that's why the bottle said not to take more than one gummy every twelve hours…Oh well!"

She pouted, rising up past your height as her body continued to gain mass and size outgrowing you.

"Probably some kind of side effect of taking so many at once…that's ok though. I kind of…really like it…haha…mmm…I only ate like three of those little things, where’s that bottle…oh…awhn…”

She moaned again growing above your head with another spurt of growth forcing her thickening thighs to burst through her pants.

Her jeans started to tear down her thicker thighs ripping off and revealing her pale jiggly size bulging with growth as her ass began to bubble up even bigger

“Whoa. That was intense…”

She sighed looking down at her legs slowly tearing off the remaining bits of her jeans off her knees and ankles dangling from her waist like a shredded skirt.

"You're starting to look even smaller…”

She bounced up again watching your eyes tread down her face leveling with her lips as she twisted her own juicy lips in disappointment.

“Kind of slow though…I’m gonna take some more.”

You protested seeing her pick up the bottle again taking it before she could grab it.

She rolled her eyes as she quickly snatched the bottle from your hands.

"Ugh. You're no fun…mmph…just a couple more…mmph…"

She poured out a half dozen more growth gummies before you could take the bottle back.

She greedily tossed them into her mouth chewing them loudly before swallowing them all at once.

"Mmph…aah…let’s see what that does.”

Her body rumbled for a moment, adjusting to the six more gummies past the three she had already taken spiking her already supercharged hormones with a dose large enough to make a flat-chested girl into a monstrous milky amazon.

“God…it's really coming on now…so intense…"

Her lips began to swell larger as she licked them letting out more hot breaths as she started to pant and sweat.

"That feeling is…so…INTOXICATING!"

She began to pulse with size growing several inches taller in one growth spurt suddenly rising up and over your head outgrowing you.

Your perspective dropped down under her chin and then again as you sunk down to her neck.

"Ooh…Now that was intense…Oh! Look, I'm taller than you- awhn! MORE! YES!”

She interrupted herself letting out a desperate moan, rising up even taller passing six and a half feet tall as you slowly watched her totally outgrow your size rising up a whole head taller several inches at once in another huge growth spurt.

"Oh my god…look at you down there…you’re getting so tiny, oh it's turning me on so much…awhn!"

Your perspective sunk down again as she grew over seven feet tall sinking down towards her giant breasts that began to balloon in size growing and swelling larger and fuller.

She moaned louder as her breasts started to expand out of control growing bigger and bigger, finally tearing open her tank top as they bulged outwards into massive J cups spilling into her hands.

It ripped around her arms and down her long line of cleavage bursting through the torn seams.

“Oh fuck…I’m going to need some new clothes…but first…wanna…fuck?”

You were speechless as she motioned her fingers down to her soaking wet pussy.

She was practically dripping, oozing down onto the carpet as she panted harder moving her fingers around her big throbbing red clit.

“Please…I…need it…I need you.”

She said begging you as she started to smother you with her giant jiggly tits.

“Mmm…yeah come here…between my giant titties…god…you’re so small and fragile compared to me now…I could just…keep you here…and smother you forever…as I keep growing…and growing…and…and…growing!”

She pushed onto your face harder as you felt her entire body begin to shake and tremble to jiggle a bit as you listened to her heartbeat speed up and then suddenly rise up taller at once several inches.

“Nngh…god that feeling of growth…it’s just getting stronger and stronger…I can barely take it…I’ve already grown so much, how tall do you think I am now?”

You felt your body begin to lift off the carpet as she picked you up for a moment and then placed you back down.

“You’re so light! This is amazing, fuck…I need more…I want to get bigger, where’s that bottle…?”

She mumbled to herself letting you go and feeling your heels land back onto the carpet as you looked forward seeing your perspective drop another half a foot down.

You watched in awe as she stood up to her new full height looking down at her lower torso close to her belly button as she was easily over eight feet tall now.

She turned to push out her huge ass onto your chest, shoving it against you as she snatched the bottle off the counter.

You tried to stop her stretching your arms around her waist was an impossible task especially as soon as you felt it pulse and grow even wider trying to get to her hands way up and out of your reach.

You gulped nervously seeing her tilt the entire bottle into her mouth watching several gummies pile into her mouth past her huge juicy lips.

You could hear her chomping down on what must have been double what she just took at the least, swallowing them all quite quickly with a satisfied sigh.

She tossed the empty bottle aside, still loudly chewing down the rest of the bottle's worth of potent growth enzymes, sending her hormones into a frenzy.

"Mmm…how many do you think that was?"

She shrugged turning back to you as you felt her giant round ass lift off your chest swinging her huge jiggly tits back into your face.