The alarm clock rang in Carla's room, illuminated by the faint morning light coming through the window.

Carla woke up yawning and stretching, and silenced the noisy alarm; she briefly thought about going back to sleep, but she got up and made her way to the bathroom, still half asleep and ready to start the new day.

Today university classes resumed, so the days of laziness at home were over, and now was the time to get back to the daily routine.

Carla would surely miss the mornings in bed and the days of total leisure, but deep down, she was also quite happy to return to a more active lifestyle at university, with her friends and classmates. Besides, she had always enjoyed studying, ever since she was a child.

With these encouraging thoughts, Carla arrived in the bathroom and was surprised to find it empty: usually at that hour, Sofia would also be up for her daily run, and it often happened that the two sisters fought for the turn to use the bathroom closest to their rooms.

Carla glanced at Sofia's room and saw that the bed was untouched. "She must have stayed out.. or more likely, she's squashed somewhere" she chuckled to herself, enjoying the leisurely use of the bathroom.

Carla finished washing up and dressed for the day, wearing a long skirt, cute and comfortable, along with a simple t-shirt; she gathered her long hair into a bun and finally put on some comfortable sandals.

Unlike the sloppy and unkempt appearance she had maintained in the past few days, Carla presented herself as a beautiful girl: her slender figure and confident expression made her look charming.

Carla grabbed her shoulder bag and her cellphone, checked on herself one last time to make sure she was ready, then headed downstairs for breakfast.

As soon as she entered the living room, Carla realized why Sofia was absent: her younger sister was flattened behind the glass panel of the painting hanging on the wall, in a rectangular display case about half a meter high and a few tens of centimeters wide, entirely compressed in thickness to a few centimeters.

Sofia was flattened vertically, with her butt and hips occupying the bottom part of the case, while her legs occupied the two side areas rising upwards, with her bare feet wedged in the two upper corners of the case. In between her legs was the rest of her body, among which her two huge boobs stood out, expanded due to flattening and thus occupying most of the remaining space.

Her head finally peeked out amidst her feet, almost completely covered by her boobs, while her hands and arms were not visible, flattened under the rest of her body somewhere.

Sofia was wearing her workout clothes, a pair of black shorts, and a sports bra with a deep neckline; she was sleeping right now, her eyes closed and a serene expression on her face.

Carla stopped for a moment in front of the painting with a smirk on her face. "Good morning, sweetheart" she heard from the kitchen. Layla, her mother, was waiting for her eldest daughter in the kitchen, with breakfast already prepared on the table.

"Good morning, Mom" Carla replied, "thanks for breakfast, what's the big occasion?" "I wanted to surprise you for the first day back to classes" Layla said with a smile, serving eggs and bacon from the pan onto Carla's plate, who immediately started eating.

"What happened to her, though?" Carla asked, indicating her framed sister behind her. "Your sister tried to squish me again last evening, but it didn't work out for her this time" Layla replied, looking at her younger daughter in turn. "After what happened the other night, when she managed to shove me into the waste compactor, she seems to have started trying to outsmart me again... But clearly, she still has to improve a lot if she wants to mess with me"

"Did it happen while I was squished between my feet? I didn't understand much of what happened that day, I think I was put in the washing machine and hung out to dry at some point, but other than that, I could hardly see or hear anything... But it was very relaxing" Carla said, reminiscing about that day. Being squished was very restful for her, if she didn't have anything particular to do.

"Rather, did she manage to stuff you into the waste compactor? But you allowed it, didn't you? I can't believe that klutz managed to do it on her own" Carla continued, getting up from the table and walking towards her sister. "Well, actually yes. What you told me a few days ago is true, I'm out of shape. I thought it might help me loosen up a bit" Layla replied, with a slightly embarrassed tone.

"So does that mean you could let me squish you every now and then?" Carla asked, with an excited tone. "At your own risk, as always" replied the mother with a smile. Carla's happy expression faltered a bit, unsure whether to take it as an invitation to proceed or not.

Meanwhile, Carla had removed Sofia's rectangular body from the display case; she was thin and with a texture similar to a canvas, and she was waking up. "Yaaaawn.. Hey Carla, what are you... Mpdffff!" said Sofia, but Carla immediately balled her up in her hands and returned to the table, under the watchful eye of her mother.

Carla and her mother chatted for a few minutes, with Carla eating and at the same time fiddling with her sister's body; finally, Carla placed the result of her work on the table.

Sofia was back in three dimensions and humanoid form, but she was about ten centimeters tall, like an action figure; her body had been perfectly reproduced to scale, from her bare feet and legs to her shorts and her enormous cleavage, but her head was disproportionately larger than the rest of her body, and it wobbled back and forth with every slight movement.

Carla had turned Sofia into a perfect bobblehead of herself.

Sofia found herself with an almost normal body but much smaller than usual, and she realized she couldn't move in that state. "Good morning, little sister" Carla greeted her, tapping her sister's head with a finger, causing it to wobble rapidly back and forth.

Sofia wanted to say something, but with her head moving like that, she couldn't make anything but incoherent noises. "It's too much fun playing with her" said Carla, tapping Sofia's head again as it was about to stop. "Now she's on punishment, right? Can I take her with me to university, if the alternative was to remain stuck in that glass case?" Carla suddenly asked, turning to her mother.

"She's on punishment until lunch, so if you promise to keep her with you all morning and set her free afterwards, it's fine by me. But ask her permission too" Layla replied, still smiling.

Carla held Sofia's head with two fingers, which showed a decidedly confused expression, mouth open and tongue out. "Hey little sister, fancy accompanying me to university? It's better than being stuck all morning in that glass case showing off your assets to the world, what do you say?" Carla asked, lowering her head to be at eye level with her little sister.

Sofia recovered and thought about it: she hated being at Carla's mercy, but it was certainly a better alternative than the boredom of spending the entire morning stuck behind a glass case; besides, even if she would never admit it, she was curious to see the university attended by her older sister, that place of brainiacs she had always imagined as inaccessible.

"Ok, fine" Sofia finally said, "but for fuck's sake, stop hitting my head like that, you'll make me vomit!" "Ooooook!" replied Carla, bringing her finger close to Sofia's head threatening to do it again, but stopping at the last moment.

Carla finished breakfast and got up to get her bag, but when she returned to the kitchen to get her sister, Sofia stopped her. "Wait! I have work at the advertising agency in the afternoon, could you bring a change of clothes and my cellphone with you?"

"Sure thing" replied Carla, taking her sister's small body in her hands; she put it in one of her open hands, and SPLAT! she closed her hands on themselves with Sofia inside, squishing her between her hands.

When she opened them again, Sofia's body had maintained the same bobblehead proportions, but it was only a few centimeters thick, and looked like a sticker of a well-endowed athletic girl; her disproportionately large head was frozen in a surprised expression, mouth open.

Carla pressed the sticker that her sister had become firmly onto her bag, where it remained stuck. Sofia had been placed next to other stickers and pins of various anime and videogames, and blended in perfectly among them.

Carla admired the result of her work, and made sure Sofia was securely attached, she didn't want her to come off during the journey. Once satisfied, she said goodbye to her mother, took what Sofia had requested, and left the house along with her sister, heading to the university.

*************************************************

To get to university, Carla had to walk a stretch to the station, take the train for about half an hour, and then walk a final short stretch to the university campus, for a total of about an hour of travel.

Usually, Carla spent her travel time with her headphones on, listening to some podcasts or watching anime on her smartphone; but today, having Sofia with her, she couldn't resist playing with her adorable sister's small, squishy body for the entire journey, molding it into different shapes while Sofia could only endure the treatment, almost regretting agreeing to spend the morning with her.

It's not that Sofia felt any particular pain or discomfort, but she couldn't stand Carla's condescending attitude while playing with her body, which only made her want to retaliate by squishing her back.

Upon arriving at the university, Carla had reattached Sofia to her bag in her new sticker form: Sofia's body was still just a few centimeters thick and had taken the shape of a stylized star, with the five points composed of her face, two arms, and two legs, while the central part was mostly made up of the girl's boobs.

During the journey to her first class of the day, several guys and girls greeted Carla, who responded warmly to the greetings, sometimes stopping for a brief conversation before moving on again.

Sofia also noticed several guys eyeing her older sister from behind, particularly one girl with an uncertain gaze, her bangs partially covering her eyes, who seemed to never take her eyes off Carla for even a second.

Sofia was very surprised and would never have thought that her lazybones of a sister, who did nothing but play and laze around at home, would be so popular at university; after all, Carla wanted to bring her sister along in part to impress her, even though the main reason remained to play with her adorable little sister as much as possible.

Between the crowd, Carla spotted her friend Jane walking down the hallway with her classmates, a year older than Carla. "Hey, Jane!" Carla greeted her, running towards her. "Hi Carla" Jane replied, smiling at her friend.

"I brought back the Magic deck you left at my place" Carla continued, taking a deck case from her bag and handing it to Jane. "I'm still sorry for what Sofia did to you; it must have been tough being turned into a towel.." "THANK YOU! Thank you for bringing back my deck, Carla, that's very kind of you!" Jane interrupted loudly, blushing with embarrassment, taking the deck case while her friends chuckled amused by the comedic scene.

"See you at lunch then, bye!" said Carla, leaving as abruptly as she had arrived, eliciting a sigh from Jane.

Carla arrived in her lecture hall and, after exchanging greetings with some of her classmates, took her usual seat next to a girl who was already sitting at one of the long benches.

"Good morning, Candace, early bird as usual, I see" Carla greeted her, starting to take out the necessary items for the class. "I see you managed not to be late this time" replied Candace, with a serious look but a smile on her face.

Candace was an imposing girl, tall and with a serious look, which could be intimidating at first glance; however, this first impression was softened by a kind demeanor and a conciliatory tone of voice, giving her a certain aura of reliability. For this reason she had been elected as the student representative of the faculty by a wide margin and enjoyed some popularity among her peers.

"Did you have a good break without classes and exams?" Candace asked. "Yes, total rest,  with some fun shenanigans with my sister!" Carla replied enthusiastically.

"Ah yes, Jane mentioned something like that indeed" said Candace, with a condescending note in her voice "but I remind you to keep your shenanigans off this campus. I have the task of maintaining order, and I won't make exceptions for anyone, not even you" Candace concluded, with a threatening tone, cracking her knuckles.

"Yes, ma'am!" Carla replied, in a carefree tone, saluting with a hand to her forehead.

"By the way, have I ever introduced you to my sister?" she continued, offering Sofia's squished star-shaped body to Candace.

Candace looked at the object Carla was showing her and facepalmed, sighing.

****************************************************

The morning classes passed without notable events; for the occasion, Carla had once again deformed Sofia's body, this time into a shape that allowed her to be placed on the bench and follow the lecture.

Sofia's bare feet had been squished into a flat circular shape to serve as a base, while the rest of her body had been compressed into a long, thin shape, like a toothpick; finally, Sofia's head had been flattened into a circular shape, giving her the appearance of a road sign, about ten centimeters tall.

Carla had placed her sister on the bench facing the blackboard, but Sofia had given up on following the lecture after the first few minutes and was bored to death.

Carla, on the other hand, was following the lecture with a concentration and seriousness that Sofia rarely saw in her sister; furthermore, her classmates often came to her or Candace with doubts and questions, showing that they also held her in high regard, despite her quirks.

A strange sense of pride filled Sofia's chest, although it was currently completely overshadowed by the irritation of being stuck in that state until lunchtime.

Finally, lunchtime arrived, coinciding with the end of the morning classes. "Go ahead, I'll join you later" Candace said to Carla, who then headed off alone towards the campus garden.

Sofia's body currently had the shape and size of a coin, with the front side entirely occupied by the girl's annoyed face, and the back side displaying the soles of her bare feet.

"So, how was university? Did you manage to follow the lecture?" Carla asked Sofia, tossing her in the air and catching her as if she were a coin. "Boring as hell" Sofia replied, flying through the air and spinning around "and stop tossing me around like this! The punishment is over; now turn me back to normal!" "Only if you guess correctly. Head or feet?" Carla joked, tossing her up again.

A few meters back in the hallway, unbeknownst to the two sisters, a girl was following Carla, never taking her eyes off her.

The girl's name was Emily, and at first glance, she seemed like a forgettable, insignificant girl; she was small and petite, dressed in unassuming clothes, with the only noteworthy detail being her too-long fringe of black hair partially covering her eyes.

Emily deeply admired Carla and considered her a role model, but due to her extreme shyness, she couldn't do anything but follow her around without being able to speak to her; they attended the same classes, but every time Carla greeted her or addressed her, Emily could only mutter confused gibberish before fleeing in embarrassment.

This time, however, Emily was determined to show Carla her worth: she was very skilled in mechanics and intended to break the ice by showing Carla her latest invention. "Hey Carla, look here... No, too casual. Carla, do you have a moment to look... No, too formal. Huuuuurhg!" Emily thought to herself, pondering how to start the conversation.

"Never mind, there's no one else in the hallway; it's the perfect moment to approach her!" Emily slapped her face with open hands to psych herself up, and with determined steps, approached Carla; she was about to call out to her when Jane appeared from around the corner, greeting Carla and engaging her in conversation.

Emily froze in place, unsure of what to do; for her, it was too much to interrupt the conversation between the two friends to introduce herself. She had been so close to finally speaking with her idol!

In a fit of anger, she grabbed her invention from her bag and hurled it forcefully towards Jane, hitting her on the back; the object was a metallic sphere, transparent and hollow inside, about the size of a baseball, with a single white button on its surface.

Jane turned to see what had hit her and saw the sphere hovering mid-air, which suddenly split open along its equator.

As soon as the sphere opened, Jane felt an immense force pulling her towards it; immediately, her entire body was lifted off the ground and stuffed into the sphere, first her face, followed by the rest of her body.

Once Jane's feet also disappeared into the hollow sphere, it closed and fell to the ground, beginning to sway back and forth until the button on the sphere flashed red and a single puff of smoke emerged from it.

The whole thing happened in a matter of seconds, under the amazed eyes of Carla and even Emily, who still couldn't believe what she had done. "Ah, it worked" Emily said, reflexively.

"Emily? Did you build this... sphere?" Carla asked, picking up the object from the ground. Being transparent, Jane's body was perfectly visible inside, compressed to take up all the space inside and deformed into the shape of the sphere containing her; currently, her face was facing downward, pressed uncomfortably against the surface of the sphere, with the upper part of the sphere showing her shoes and the rest of her body compressed in the middle.

"Y-yes, I built it! ItsmylatestinventionandIwantedtoshowittoyou" Emily said, all in one breath. "I'm sorry! I didn't mean to capture your friend like this, I'll free her right aw.." "But it's a Pokéball, it's so cool!" Carla exclaimed, turning the sphere over in her hands to examine it better. "Does it do anything else?" she asked, looking at Emily with enthusiastic eyes.

"W-Well, if you press this button, the sphere opens, releasing its content, while if you hold it down.." Emily held down the button, and in an instant, the sphere shrunk, becoming the size of a marble. "..it becomes even smaller, just like in the series" Carla looked inside the tiny sphere and saw that Jane's body was more compressed than ever.

"Also" Emily continued, gaining more confidence as she spoke, "it records information about the captured creature inside it" she said, showing her smartphone to Carla: on it was displayed the page of an app with a list of information, including "Species: Human, Gender: Female, Name: <please insert name>" and others such as height, weight, body density, etc.

"This is so cool!" Carla repeated, "I didn't know you were a genius of this kind! You're amazing, Emily!" she said, taking the girl by the shoulders and ruffling her head.

Emily felt like she was in heaven, with a blissful expression on her face; her beloved Carla was complimenting her! This was the best day of her life!

"Do you have any more of these spheres?" Carla asked, releasing Emily and looking at her expectantly. "Yes, here's another one" Emily replied, taking another one from her bag and handing it to Carla, "but be careful not to press the.." Emily was saying, as Carla pressed the button on the sphere.

Immediately, the sphere opened, and Carla's body was forcefully sucked inside, starting from the arm that had pressed the button, then the chest, and finally the rest of the body, with the head and feet disappearing last into the sphere.

Like before, the sphere closed and fell to the ground, swaying a little before coming to a stop, with the button flashing red and a puff of smoke emerging from the sphere.

"...button" Emily finished her sentence, shocked by what had just happened. She picked up the sphere from the ground and saw that Carla's body was obviously compressed inside the sphere, but in a strange position considering how she had been sucked into it.

Carla's body had folded in on itself as it was sucked in from the abdomen, and the upper side of the sphere showed her head lodged between her feet with sandals on, her face sporting a surprised expression; the rest of the body was haphazardly compressed inside the sphere.

One of the hands, pressed against the surface of the sphere, displayed Sofia's coin-shaped body, squished even more between Carla's hand and the transparent metal wall.

Emily put her hands to her head: she had just squished and stuffed her idol in a sphere! Now she would never speak to her again; she would hate her forever! This was the worst day of her life!

She absolutely couldn't release her now, what could she do? Apologize? Make it up to her somehow? Maybe she could offer herself to her as her personal squishy toy forever.. In the meantime, all she could do was take her home with her while she figured out what to do; she held down the button of Carla's sphere, and it also became the size of a marble, further compressing the sisters inside it.

Emily inspected the two small spheres containing Jane and Carla (and Sofia, unbeknownst to her) thoroughly, to ensure they were well sealed; despite the extreme compression they were subjected to, the spheres perfectly contained the bodies of the girls; satisfied, she put the two spheres in her bag.

As she walked down the hallway, she checked her smartphone to review Carla's data, and was surprised to see that her app had encountered an error during registration <ERROR: Numerous creatures identified, unable to register>. "What do you mean, numerous creatures? There's only Carla in... Umpfff" Emily bumped into a boulder in front of her and fell to the ground.

In front of her loomed Candace, arms crossed, with a decidedly unfriendly expression. "Emily, could you kindly explain to me what you've done with Jane and Carla?" Candace asked, in a calm tone that brooked no argument. Emily began to sweat profusely.

An explanation and one SQUISH! later, Candace held the spheres of Carla and Jane in her hand, returned to their original size of a baseball. Candace pressed the buttons of the spheres, which immediately opened, ejecting their contents.

The compressed bodies of Jane and Carla remained spherical for just a moment, then POP! returned to their original forms; Jane looked around bewildered, while Carla stretched and turned to Candace: "The usual spoilsport" she said, pouting and bending down to pick up Sofia's coin-shaped body from the ground, which had come out of the sphere in the same form it had entered.

"Don't listen to her, Candace, thank you so much for freeing us" Jane thanked, with a relieved expression. "I was afraid of losing another afternoon because of Carla" she continued, giving her friend an icy look.

"And what do I have to do with it this time?" Carla replied, with a tone of feigned offense. "By the way, what happened to Emily?" she asked Candace, who responded by showing what she had in her hand.

Emily's body had been squished from above and reduced to the size and thickness of a coaster, with the side facing Carla showing the top of the girl's head and the rest of the body as a contour.

"Emily will spend a couple of hours hanging on the punishment board for what she did" Candace said, authoritatively. "And I'm confiscating these damn spheres too" she added, putting the two spheres that had captured the girls in Emily's bag "if they were to spread around campus, my job would become a nightmare". Jane breathed a sigh of relief, while Carla stick out her tongue at Candace.

"I'll join you later for lunch, go ahead without me" Candace bid them farewell, heading to the student representative's room for Emily's punishment with her bag too.

Jane and Carla waved goodbye and continued walking towards the garden for lunch. "Why is it that every time I'm with you, I end up squished or flattened in some way?" Jane asked Carla, with a tone halfway between resentful and resigned.

"You're blaming me again for something I have nothing to do with" Carla replied nonchalantly, tossing Sofia's coin-shaped body into the air again. "Anyway, we really need to go talk to Emily as soon as she gets out of punishment; if she has more inventions like this, we'll have some fun!"

"Hey big sis, did you forget about me? TURN ME BACK TO NORMAL!" exclaimed Sofia, landing on Carla's finger before being tossed back into the air.