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Description
Sarah looked through the old family tomes in the attic of her house, feeling frustrated as yet again she's failed to find any results. Sarah was a kitsune, and sisters with a rather famous one as well. Ahri the Champion was her sister, and for a long time Sarah has felt a sort of inferiority compared to her. Ahri was the best, she was powerful, good looking, and had a huge chest, compared to Sarah herself who was only moderately powerful, decent in looks, and almost flat compared to her sister.
Sarah would admit she wished she had breasts as big as her sister, maybe even bigger, but she didn't hate her sister for being bigger. Instead, she admired Ahri's size, and often wondered what it would be like if she was even larger. It was something of a secret fantasy of hers, but Sarah loved huge boobs, loved the idea of them growing, and she had been looking for a way to make that happen for years. All avenues of her research though had failed.
Magic wasn't providing answers, chemicals and potions had limits, and even natural means failed her.
Sarah was just about to give up when she noticed a smaller book, almost like a diary stuffed away in a corner. It was entirely unremarkable looking, yet something about it called to her as if she had known it all her life. Reaching out, she grabbed ahold of it and pulled it into view. A faded S marked the cover with a purple bookmark, her favorite color. Was this... her diary? But she hadn't made a diary!
But why did this feel so unequivocally hers?
Opening the book, a wind picked up through the room and the pages began shining with a pink light. Unable to let go, Sarah watched, stunned, until a beam of light shot out and hit her. Then. She KNEW. She UNDERSTOOD.
Knowledge poured into her as the meaning behind the book was comprehended. It WAS her diary, from an alternate version of herself who had the same desires, except THAT version of her had stumbled onto a power that would complete her long lost quest. Overjoyed, the other her then decided to use their newfound knowledge to forward that power to every other version of her to exist, and thus, it made its way to her as well.
"Wow..." Was all she could say as the light faded and the book crumbled to dust.
It was... perfect! It was even more than she had ever dreamed of! This power...
Ethereal energy gathered in her hands and she looked down at herself before pressing it into her small chest. Pure magic swirled inside of her and before her very eyes, her once small breasts swelled like party balloons, doubling, then tripling in size until she let go, letting them come to a stop easily the size of her head!
Sarah let the power fade from her hands and clutched her chest, confirming that yes indeed, she now had tits! A nice pair too, and yet she wasn't satisfied in the least! She gathered energy again, causing the growth to continue. Bigger, and bigger they swelled, surpassing the size of coconuts, then watermelons as her poor top struggled to contain her immense boobs. Finally, she let them come to a stop at the size of beach balls, proudly jutting out over a foot from her chest, stretching her top to its limits.
Sarah grinned widely, almost moaning from the new sensitivity she found herself possessing. She could affect reality itself with these powers! Thoughts of her sister returned to her mind and her grin widened. She would absolutely have to bring her sister into this to help test things.
"Oh Ahri~~!" Sarah called, using their magical bond as sisters to communicate.
"What is it, Sarah? Do you need something?" Ahri asked, her voice sounding ethereal over the link.
"As a matter of fact, I do! I need your help testing something!"
"Alright, I'll be over in a second." Ahri seemed to sigh over the link before Sarah detected an incoming teleportation spell, likely her sister trying to come over. Well, Sarah had a little test she wanted to try with that. Reaching out with her newfound powers, she grabbed ahold of the magic of Ahri's teleportation spell and tweaked it a little, changing the destination before joining in on the spell herself.
Instead of the spell dropping Ahri into Sarah's living room, the both of them were whisked away to someplace entirely different. A brand new place of Sarah's creation- a mirror dimension.
The instant the teleportation finished, Sarah tackled Ahri in a hug, squishing her new size into her sister's own, and quietly relishing in finally being bigger than her.
"...Sarah! What has gotten.... into... you?" Ahri said, pushing her sister off slightly before realizing the two very big and obvious changes about her sibling. "You managed to find a way to make yourself bigger?" She asked, slightly stunned as she looked at how big Sarah was. Her sister giggled.
"I found a lot more than just that~!" She said, standing up. She offered a hand and pulled Ahri up with her, making a sweeping gesture around them. "I made this place! You have no idea just how much I discovered, sis! This is a mirror dimension, a replica of our world, yet entirely devoid of people!" She said, spinning around.
"You... you made this? How?!?" Ahri asked. Sarah just grinned.
"I've found myself with some pretty cool powers now, and I needed a place to properly test things without any interference~."
Ahri was a little wary of the smile Sarah was sporting. "What on earth would you need another dimension to test?" She asked. Her sister made an innocent look.
"Oh, just a few limits, is all." Sarah replied, gathering power in her hands.
"Limits of what?"
Sarah grinned. "I'm glad you asked!" She pounced on her sister, placing her hands upon Ahri's breasts before pouring in her power, creating a link between them. Raw magic swirled around them before both Ahri and Sarah's breasts started growing bigger and bigger. Ahri let out a startled yelp as her already sizeable mounds began growing, while Sarah's own button bursting bust began overflowing her top.
Ahri leapt back, clutching her chest as her tits swelled to the size of melons. "What did you do to me??" She asked, panicked.
"Relax, sis! It's just a bit of growth! It's perfectly harmless and there is nobody around to see us! I just wanted to see what you looked like if you were bigger!" Sarah replied, still channeling power. Ahri tried to use her magic to cancel or negate the growth, but nothing slowed or stopped it. Sarah's breasts were now the size of yoga balls, tearing her top apart from their immense size while Ahri's own breasts were beginning to resemble watermelons.
"Why can't I stop it?!" Ahri asked.
"Because I'm feeding the loop," Sarah answered, showing the energy swirling in her hands as her clothing began to give way to her titanic tits. Sarah let out a moan of pleasure before kneading the vast expanse of her boob flesh tenderly, absolutely loving the experience. "I've always wanted to see you with bigger breasts, sis, but now I get to be the bigger sister, and as long as I grow my breasts, the link I made between us will make yours will grow as well."
Sarah's breasts were now growing past her knees, and she dropped to the ground with them as Ahri clutched her own chest when it burst from her top, flesh growing around her arms as she tried to hold them close to her.
Ahri looked a bit more resigned to her fate for now, and bit her lip as she saw how huge she was getting.
"Just... how big do you intend to grow to?" Ahri asked. Sarah laughed.
"Didn't you hear me earlier? I need to test the limits! We're going to go as big as we possibly can, and if it means we outgrow this entire dimension, I'm prepared for that!"
Ahri let out a resigned sigh as she watched her now much bigger sister knead her SUV sized tits before letting her own gigantic breasts fall to the floor, providing her with a very soft cushion to rest on.
Well, Ahri supposed if she was stuck here, she might as well enjoy it. She looked to the skies above, imagining just how big an entire dimension must be. This would take a while.
Well, Ahri supposed if she was stuck here, she might as well get used to it. She looked to the skies above, imagining just how big an entire dimension must be. This would take a while.
"Mmm.. you know what?" Sarah asked aloud. Ahri got a bad feeling. "I think I'm a little thirsty..." She said, looking at Ahri's now enormous tits with a perverted grin.
"What?" Ahri asked in confusion, before realizing what might happen next. "Hey, no! Don't you even..... oooohhh." Ahri was interrupted mid sentence as a powerful churning sensation was felt through her already enormous breasts. Both Ahri and Sarah's boobs started growing out of control as they began producing milk in vast quantities, far more than they could leak.
Sarah let out at delighted laugh as her once car sized tits began ballooning so much bigger. Every second added on more than a foot of size, and soon neither of them could move as their breasts soon overtook them in size and began growing exponentially faster.
Bigger than a house, then bigger than three houses, then bigger than a mansion they grew. Ahri was almost lost in the sensations she was feeling from all the milk inside her tits, only dimly aware she was panting while Sarah's delighted and lustful moans were heard off to the side.
"Yes, bigger! Bigger! Its everything I've ever dreamed of!" Sarah shouted. Almost in response to her calls, their titanic tits began growing even faster as they overtook the size of a neighborhood in seconds. Their unstoppable growth continued as they soon surpassed the size of a city in less than a minute. Each of their enormous breasts were now taller than skyscrapers as their immense, milk filled tits kept growing.
Sarah let out a few yells of joy as they grew, feeling her tits crushing everything in the path of her growth until she realized they had come upon a mountain. She relished in feeling how her tits made the mountain seem to get smaller and smaller, until she grew over it, and then began to crush it with the weight of her tits.
The chilly air of high atmosphere began to brush across their breasts, sending waves of sensitivity to the two girls as they became bigger than mountains, bigger than anything else on earth as their boobs became visible from space.
Minutes passed in blissful growth before the two began feeling the curvature of the very earth beneath their tits, and the moon fell out of its orbit to rest upon Sarah's bosom. Sarah let out a cackle as she felt herself getting bigger around both the moon and the earth, loving how it felt to slowly envelop both objects in her boobs.
"This is only the beginning, sis! We've got a lot more to go!" Sarah called out to her sister through their link, but Ahri was naturally more sensitive than Sarah, and thus utterly unable to form a coherent response under everything she was feeling as their tits swallowed the earth and moon, becoming bigger than the planet.

Description
Sarah looked through the old family tomes in the attic of her house, feeling frustrated as yet again she's failed to find any results. Sarah was a kitsune, and sisters with a rather famous one as well. Ahri the Champion was her sister, and for a long time Sarah has felt a sort of inferiority compared to her. Ahri was the best, she was powerful, good looking, and had a huge chest, compared to Sarah herself who was only moderately powerful, decent in looks, and almost flat compared to her sister.
Sarah would admit she wished she had breasts as big as her sister, maybe even bigger, but she didn't hate her sister for being bigger. Instead, she admired Ahri's size, and often wondered what it would be like if she was even larger. It was something of a secret fantasy of hers, but Sarah loved huge boobs, loved the idea of them growing, and she had been looking for a way to make that happen for years. All avenues of her research though had failed.
Magic wasn't providing answers, chemicals and potions had limits, and even natural means failed her.
Sarah was just about to give up when she noticed a smaller book, almost like a diary stuffed away in a corner. It was entirely unremarkable looking, yet something about it called to her as if she had known it all her life. Reaching out, she grabbed ahold of it and pulled it into view. A faded S marked the cover with a purple bookmark, her favorite color. Was this... her diary? But she hadn't made a diary!
But why did this feel so unequivocally hers?
Opening the book, a wind picked up through the room and the pages began shining with a pink light. Unable to let go, Sarah watched, stunned, until a beam of light shot out and hit her. Then. She KNEW. She UNDERSTOOD.
Knowledge poured into her as the meaning behind the book was comprehended. It WAS her diary, from an alternate version of herself who had the same desires, except THAT version of her had stumbled onto a power that would complete her long lost quest. Overjoyed, the other her then decided to use their newfound knowledge to forward that power to every other version of her to exist, and thus, it made its way to her as well.
"Wow..." Was all she could say as the light faded and the book crumbled to dust.
It was... perfect! It was even more than she had ever dreamed of! This power...
Ethereal energy gathered in her hands and she looked down at herself before pressing it into her small chest. Pure magic swirled inside of her and before her very eyes, her once small breasts swelled like party balloons, doubling, then tripling in size until she let go, letting them come to a stop easily the size of her head!
Sarah let the power fade from her hands and clutched her chest, confirming that yes indeed, she now had tits! A nice pair too, and yet she wasn't satisfied in the least! She gathered energy again, causing the growth to continue. Bigger, and bigger they swelled, surpassing the size of coconuts, then watermelons as her poor top struggled to contain her immense boobs. Finally, she let them come to a stop at the size of beach balls, proudly jutting out over a foot from her chest, stretching her top to its limits.
Sarah grinned widely, almost moaning from the new sensitivity she found herself possessing. She could affect reality itself with these powers! Thoughts of her sister returned to her mind and her grin widened. She would absolutely have to bring her sister into this to help test things.
"Oh Ahri~~!" Sarah called, using their magical bond as sisters to communicate.
"What is it, Sarah? Do you need something?" Ahri asked, her voice sounding ethereal over the link.
"As a matter of fact, I do! I need your help testing something!"
"Alright, I'll be over in a second." Ahri seemed to sigh over the link before Sarah detected an incoming teleportation spell, likely her sister trying to come over. Well, Sarah had a little test she wanted to try with that. Reaching out with her newfound powers, she grabbed ahold of the magic of Ahri's teleportation spell and tweaked it a little, changing the destination before joining in on the spell herself.
Instead of the spell dropping Ahri into Sarah's living room, the both of them were whisked away to someplace entirely different. A brand new place of Sarah's creation- a mirror dimension.
The instant the teleportation finished, Sarah tackled Ahri in a hug, squishing her new size into her sister's own, and quietly relishing in finally being bigger than her.
"...Sarah! What has gotten.... into... you?" Ahri said, pushing her sister off slightly before realizing the two very big and obvious changes about her sibling. "You managed to find a way to make yourself bigger?" She asked, slightly stunned as she looked at how big Sarah was. Her sister giggled.
"I found a lot more than just that~!" She said, standing up. She offered a hand and pulled Ahri up with her, making a sweeping gesture around them. "I made this place! You have no idea just how much I discovered, sis! This is a mirror dimension, a replica of our world, yet entirely devoid of people!" She said, spinning around.
"You... you made this? How?!?" Ahri asked. Sarah just grinned.
"I've found myself with some pretty cool powers now, and I needed a place to properly test things without any interference~."
Ahri was a little wary of the smile Sarah was sporting. "What on earth would you need another dimension to test?" She asked. Her sister made an innocent look.
"Oh, just a few limits, is all." Sarah replied, gathering power in her hands.
"Limits of what?"
Sarah grinned. "I'm glad you asked!" She pounced on her sister, placing her hands upon Ahri's breasts before pouring in her power, creating a link between them. Raw magic swirled around them before both Ahri and Sarah's breasts started growing bigger and bigger. Ahri let out a startled yelp as her already sizeable mounds began growing, while Sarah's own button bursting bust began overflowing her top.
Ahri leapt back, clutching her chest as her tits swelled to the size of melons. "What did you do to me??" She asked, panicked.
"Relax, sis! It's just a bit of growth! It's perfectly harmless and there is nobody around to see us! I just wanted to see what you looked like if you were bigger!" Sarah replied, still channeling power. Ahri tried to use her magic to cancel or negate the growth, but nothing slowed or stopped it. Sarah's breasts were now the size of yoga balls, tearing her top apart from their immense size while Ahri's own breasts were beginning to resemble watermelons.
"Why can't I stop it?!" Ahri asked.
"Because I'm feeding the loop," Sarah answered, showing the energy swirling in her hands as her clothing began to give way to her titanic tits. Sarah let out a moan of pleasure before kneading the vast expanse of her boob flesh tenderly, absolutely loving the experience. "I've always wanted to see you with bigger breasts, sis, but now I get to be the bigger sister, and as long as I grow my breasts, the link I made between us will make yours will grow as well."
Sarah's breasts were now growing past her knees, and she dropped to the ground with them as Ahri clutched her own chest when it burst from her top, flesh growing around her arms as she tried to hold them close to her.
Ahri looked a bit more resigned to her fate for now, and bit her lip as she saw how huge she was getting.
"Just... how big do you intend to grow to?" Ahri asked. Sarah laughed.
"Didn't you hear me earlier? I need to test the limits! We're going to go as big as we possibly can, and if it means we outgrow this entire dimension, I'm prepared for that!"
Ahri let out a resigned sigh as she watched her now much bigger sister knead her SUV sized tits before letting her own gigantic breasts fall to the floor, providing her with a very soft cushion to rest on.
Well, Ahri supposed if she was stuck here, she might as well enjoy it. She looked to the skies above, imagining just how big an entire dimension must be. This would take a while.
Well, Ahri supposed if she was stuck here, she might as well get used to it. She looked to the skies above, imagining just how big an entire dimension must be. This would take a while.
"Mmm.. you know what?" Sarah asked aloud. Ahri got a bad feeling. "I think I'm a little thirsty..." She said, looking at Ahri's now enormous tits with a perverted grin.
"What?" Ahri asked in confusion, before realizing what might happen next. "Hey, no! Don't you even..... oooohhh." Ahri was interrupted mid sentence as a powerful churning sensation was felt through her already enormous breasts. Both Ahri and Sarah's boobs started growing out of control as they began producing milk in vast quantities, far more than they could leak.
Sarah let out at delighted laugh as her once car sized tits began ballooning so much bigger. Every second added on more than a foot of size, and soon neither of them could move as their breasts soon overtook them in size and began growing exponentially faster.
Bigger than a house, then bigger than three houses, then bigger than a mansion they grew. Ahri was almost lost in the sensations she was feeling from all the milk inside her tits, only dimly aware she was panting while Sarah's delighted and lustful moans were heard off to the side.
"Yes, bigger! Bigger! Its everything I've ever dreamed of!" Sarah shouted. Almost in response to her calls, their titanic tits began growing even faster as they overtook the size of a neighborhood in seconds. Their unstoppable growth continued as they soon surpassed the size of a city in less than a minute. Each of their enormous breasts were now taller than skyscrapers as their immense, milk filled tits kept growing.
Sarah let out a few yells of joy as they grew, feeling her tits crushing everything in the path of her growth until she realized they had come upon a mountain. She relished in feeling how her tits made the mountain seem to get smaller and smaller, until she grew over it, and then began to crush it with the weight of her tits.
The chilly air of high atmosphere began to brush across their breasts, sending waves of sensitivity to the two girls as they became bigger than mountains, bigger than anything else on earth as their boobs became visible from space.
Minutes passed in blissful growth before the two began feeling the curvature of the very earth beneath their tits, and the moon fell out of its orbit to rest upon Sarah's bosom. Sarah let out a cackle as she felt herself getting bigger around both the moon and the earth, loving how it felt to slowly envelop both objects in her boobs.
"This is only the beginning, sis! We've got a lot more to go!" Sarah called out to her sister through their link, but Ahri was naturally more sensitive than Sarah, and thus utterly unable to form a coherent response under everything she was feeling as their tits swallowed the earth and moon, becoming bigger than the planet.