# “If I Know My Sister”

By: TheDragonBoy

## Content

*guuurgle*

“Well, someone’s hungry,” Jane lightly teased. Rebecca gave a little awkward smile and glanced away.

“Guilty,” she admitted. Dim chatter filled their ears as the two girls walked down the campus hall together.

“Well, let’s go find Jill and head to dinner.”

“Sounds good to me. Any idea where she might be?”

“If I know my sister, she’ll already be halfway to our room,” Jane said.

“Oh, right, there’s a test tomorrow, isn’t there? She didn’t study again?”

“Nope,” Jane sighed. Her sister did have a bad habit of ‘failing’ to study until the last minute, then trying to grab every minute she could before it was too late- usually at the expense of both of their night’s sleep. “Think I can bunk with you tonight? The last thing I need is her pestering me with questions.”

“Ditching your own sister in her hour of need!?” Rebecca feigned.

“It’s for her own good at this point! She’s got to learn to study before it’s too late.”

“Fair,” Rebecca replied, then considered the request. “Yeah, I think I can make some room for you tonight.”

“Thanks.”

“I can even help a little with Jill before lights-out. Least I could do.”

“Really? You’re not too busy? Oh, who am I kidding, it’s not like you ever need to study for a test.”

Rebecca once again gave a little smile and glanced away. She did have a bit of a reputation for being ‘gifted’. And, well, the rumors weren’t wrong. She could do things with spellcraft that some graduates could barely manage. Her smile became prideful at the thought.

The pair soon arrived at the dorms. Rebecca stopped at her door and opened it, revealing the single-bedded room which she had all to herself.

“See you in a minute, Becky,” Jane said as she continued on, heading to the dorm she shared with her sister. It was only a few doors down. When bedtime came, she could simply drag her mattress over for the night and sleep on the floor. It wouldn’t be the first time.

Minutes ticked on in relative silence as books and binders were put away and touchups were made to makeup and hair. Aside from the muffled chatter of passing schoolmates, there wasn’t much else of note up until the knock on Rebecca’s door.

“Come in,” Rebecca called.

It opened to reveal Jane, as expected, who stepped inside, closing it behind her.

“No Jill?”

“Nope.”

“So much for ‘if I know my sister’,” Rebecca teased.

“Har har,” came the dry reply.

Another audible gurgle leaked from Rebecca’s belly.

“Do you want to head to dinner without us?” Jane asked.

“Nah, it’s fine, I can wait.”

“Well, alright.” Jane came further into the room and sat herself in a chair. “Jill’ll come by here sooner or later.”

“You sure about that?” Rebecca continued to tease.

“Well, it’s the best guess we’re gonna get,” Jane replied, sarcastically playing along. “I am the campus’ leading expert on Jill Withers.”

“Oh, is that so? Well, how ‘bout a little game to pass the time?” Rebecca came over and sat on the edge of her bed, near Jane’s chair. “I bet I know your sister even better than you do.”

Jane shot her friend a look of amused and playful skepticism. “I mean, I know we’ve been friends for a while, but do you really want to challenge me on Jill-trivia?”

Rebecca crossed her legs and straightened up a bit; poised for the challenge. Jane smirked.

“Well alright then.” She paused to think for a moment. “When’s her birthday?”

“The 16th of the 3rd. This is your idea of a hard question?”

“Easy questions first. We’ll see if you make it to the hard ones. Favorite color?”

“Pink.”

“Favorite animal?”

“Eurasian skylark.”

Jane paused for a moment. That answer was quite quick and quite specific, but her sister had gone on about the bird at length on more than one occasion.

“Least favorite food?”

“Trick question. She’s not much of a picky eater.”

“Well played… Okay then, worst day of her life?”

“When Frank Luis broke up with her. Man, he was a jerk.”

“Best day?”

“The day after, when Tony Trussler decked Frank and then asked her out.”

“And where did they have their first kiss?”

“Two years earlier, out by the old tree.”

“You knew about that?”

Rebecca smirked in satisfaction. Jane had to stop and think for another moment; apparently she needed some tougher questions.

“…How old was she the first time she went dragon-back riding?”

“Eleven.”

“Why was she scared?”

“She was worried her dress might fly up in the breeze.”

Jane couldn’t help but chuckle. “You know, she hadn’t even thought of that until I’d mentioned it to her on the way there.”

“I did know.”

“Okay smarty skirt.” Jane rolled her eyes. “I’ll admit, you know her pretty well. But what’s the most embarrassing thing she’s ever done?” She seemed quite confident in that question.

“Kissed you on the lips. When she was drunk and imagined you were a big buff guy.”

Jane was fairly stunned. Not only was that the truth, but it had hardly taken a moment’s thought.

“Ahem, well, I’m gonna have to have a word with her about spilling that one.” She shook off her own passing embarrassment. “…What’s the first thing she does when she wakes up in the morning?”

“Counts her fingers and toes.”

“What was her favorite stuffed animal as a kid?”

“Her blue smiling spider. Missing one leg.”

“How did she find out she was allergic to apple blood?”

“She puked up her first juice box of it when she was five. But your parents didn’t know and thought it was her blood, so they took her to the emergency room.”

“Where does she keep her diary?”

“She used to keep it under your bed back home, so you could watch it for her. But she hasn’t kept one in years.”

“…H-how do you know all this?”

“Oh, just a little spell I’ve been working on,” Rebecca ‘admitted’, feigned modesty covering rising pride.

“A spell? Becky, you cheat!” Jane accused; a bit more playful again now that things made sense. “But, I mean, wow. What kind of spell? Can’t imagine one of the teachers would teach you something like this.”

“No way. Way too fun for those stuffy old robes.”

“So… what then?” Jane asked, genuinely intrigued.

“Keep quizzing me and maybe you’ll find out,” Rebecca teased.

“Hm… okay then.” She thought for a moment, smirking as she came up with an idea, then frowning as she thought it through. “What was her first pet?”

“She had a wolpertinger when she was seven.”

“…And what happened to it.”

“It got struck by lightning.”

“So, you’re not reading my mind, then,” Jane pointed out.

“Hm?”

“…You promise you won’t tell her this?”

Jane nodded sincerely, a bit of her interest showing.

“We told her it got struck by lightning, but really… I accidentally fried it when I was trying to learn cooler spells in the back yard… Mom and dad didn’t want her to hate me for it.”

A short moment of silence passed, broken by Rebecca.

“She would have forgiven you,” the girl said, a clear note of sincerity in her voice.

Jane half-scoffed-half-chuckled. “Okay, come on, spill it already. Jill’s here somewhere, right? You must be getting these answers from her.”

“Well, when you’re right, you’re right,” Rebecca admitted.

“Well, if I know my sister, and I do, she’s not telling you all of this voluntarily, is she?” The glance Jane shot her friend now was still amiable, but had a healthy note of genuine criticism. “You know it’s generally pretty rude to go poking around inside someone’s head.”

“I know, I know. But I just couldn’t resist. Who else was I going to try this on? So, what do you want to know?”

“Huh?”

“About your sister; I can tell you anything.”

“Pfff, come on, I’m not gonna use you to spy on my sister’s mind.”

“You sure? This spell only works on a person once. I won’t be able to do this with her again.”

“Only once, huh…?”

“Yup, just one chance.”

“…”

“Come on. It doesn’t take magic for me to tell you’ve got a question on your mind.”

“Ugh, fine… I know it’s petty, but… when I was six, did she hide my unicorn plushie?”

“Pfff!” Rebecca laughed, stifling herself.

“I was six!”

“And you’ve been carrying this burning question all this time?”

“It’s just, I knew she was jealous that all I wanted to do was play with it instead of playing with her, and…” Jane stopped. Pleading the case for her six-year-old self wasn’t doing her any favors. Rebecca chuckled a bit more before answering.

“No. Actually, she spent days trying to look for it. She felt bad for you.”

Jane gave a little, thoughtful smile. Feeling some renewed love for her sibling in the wake of this long awaited resolution.

I should do something nice for her, Jane thought. Hey… maybe I can actually use this to help her.

“Um, why doesn’t Jill ever study for her tests? Like, what does she do instead? Maybe if we find out we can help her break the habit?”

“Hm… well she-”

*glorp*

The noisy burble from her belly interrupted her thought. It seemed to throw off her focus, and though she seemed to try and regain it, eventually she just gave a tiny sigh of defeat and said:

“Sorry, looks like that’s the end.”

Jane furrowed her brow a bit. “You mean… the spells over?”

“Yup.” Rebecca casually stood from her bed, stretching a touch, and letting out the daintiest little *urp*. She walked over to her desk, seemingly stretching her legs a bit.

“…Becky?” There was a note of nervous suspicion in Jane’s voice which she couldn’t manage to hide.

“Yeah?”

“…Where is she? …Jill.”

“Oh, well… the thing is with that spell I used: in order for it to work right, the person I’m using it on needs to be…” she seemed to choose her words, “very close by.”

Jane figured as much; most spells had ranges. But this one seemed different. And something about the way Rebecca was acting…

“How close?”

“Well… inside, as it were.”

The room suddenly became piercingly silent, those last words seeming to fill the dead air with their unspoken implications. Nothing and nobody moved.

And then suddenly there came a bang, a few frantic footfalls, a strangely fleeting shout, a flash of light, and then again there was silence.

*knock* *knock* *knock*

“Hello? Everything okay in there?” It was a slightly older woman’s voice; one of the RAs.

“Just fell out of my chair. Don’t worry, I’m fine,” Rebecca called back. On the floor near her, the chair where Jane had been sitting was overturned and empty.

“Oh, okay then,” came the reply, followed by retreating footsteps.

Rebecca slowly un-cupped her hands from each other. There, resting in her palm, was the tiny shrunken form of her friend Jane, panting on her back, about the size of a finger.

“Did you really think I’d let you run off?” the full-sized girl asked.

“Becky, come on, this isn’t fun anymore,” the shrunken girl replied, fearfully looking around her strange, new surroundings.

“I know, I’m sorry,” Rebecca said mournfully. “The fun’s over. But it was good while it lasted, wasn’t it? All those years?”

“No- Becky-” Jane’s sentences were small and broken as she processed everything. “You couldn’t have…”

“I did.”

“You mean… that whole time… in the hall, in here when we were talking, she was…”

“Right here,” Rebecca answered. More than that, she brought her hand in close, right up to her midriff below the swell of her breast.

*guuurgle* *glorp*

Jane recoiled from the sound and almost fell from the other girl’s hand. Her eyes were wide and fixed on the innocuous fabric covering the horror beyond.

“Jill! You… you have to let her out!”

“Actually, the spell only works so long as she’s inside. And considering the spell isn’t working anymore… Well, I doubt she’s outside, but let’s just say whatever’s inside isn’t ‘her’ anymore.”

Jane went speechless. The stomach before her gave a low, ominous rumble.

“It really is too bad. All she wanted was some help with her latest test. I was happy to help a girlfriend out, but I needed some help with my project too, and well, she volunteered in exchange. I might have tried to let her back out, but once she was inside, I knew that if I did, she would end up telling.”

Rebecca sighed. From Jane’s perspective: a great movement of masses of skin, and fat and bone beneath; a huge swelling and retreat of smooth curves outlined by familiar school attire.

“Well, it’s been nice knowing you two. Really. But I’ve got a life to live, magic to learn, and a world to change.” Her hand began to rise.

“Wh- NO! Becky, wait! I- I won’t tell anyone! Not a soul! Please, just don’t-”

“Eat you? You’d rather Jill stew in there alone? Ditching your own sister in her hour of need?” Rebecca chided.

“I won’t tell! Please!”

“Come on now, Jane. Be honest. You’ll keep quiet about me eating your sister?” Her hand reached her face. “I doubt it. But, hey, once you’re inside, I’ll be able to tell for sure, right?”

*plop*

It was one quick, casual motion. A parting of the lips, a flick of the wrist, and then: gone.

Jane landed in darkness. Wet, squishy, humid darkness. Rebecca’s lips closed and all at once the world around her became active and overwhelming. Everything moved. Flexing, pressing, squishing, sloshing, slipping, licking, tasting. The tiny girl was in a daze, arms in and up protecting her face, legs in and up protecting her belly, as the tongue crassly shifted her in and out of pools of accumulating saliva, pressing her into and out of cheeks, sliding her past massive molars.

Hair and clothes drenched and soaked with hot drool, there came a fresh lurch in a new direction, even more harsh and sudden than every other movement. The walls of flesh and muscle grew tighter, and tighter still, and then:

*gu-lrk*

As her own breathing rang fast and loud in her ears, she heard the long, loud, steady rush of air from Rebecca’s lungs as she released her breath, having swallowed her newest mouthful. The sound pulled Jane’s attention to all the other noises around her: the steady, approaching thumping of the relatively massive heart, and the persistent crackling of slick slime as she slid past what seemed to her to be foot after foot of tight, constricting muscle.

And then, just as she began to wish frantically for this horrible journey to end, the harsh grip released her, and she slipped and fell with a splash.

No… No! NO!

“Yes, Jane. You’re exactly where you think you are.”

Becky!! Jane could feel her. Not just all around her body- suffocating and stifling and compressing her- but she could feel the other girl’s presence within her mind, privy to her inner thoughts and feelings, just as she was now privy to her ex-friend’s inner biology.

*glursh*

The walls pressed in against her, hard, washing her in foul slop, pressing her into slick folds, then releasing and sending her grasping and fumbling.

*cough* *cough* “Jill! Is that you?!” Jane called. She’d felt something else pushed up against her as well, something that seemed humanoid in shape. “Jill!” she called again.

Mustering what wit and concentration remained, she raised one hand into the limited space above her and managed to conjure a simple light. It was a basic spell she’d had well practiced for years, but in conditions like this even a spell of that caliber was difficult.

Wrinkled, ooze-covered walls of sagging muscle glistened in the new, dim light. Pink, like Jill’s favorite color.

“Jill! Jill!” Doing her best to keep steady, she moved her light-wielding hand around, pushing sagging folds out of the way, digging her free hand through the thick, foul slop around her until it came across something solid.

An arm! Her sister’s arm! She pulled, dredging what she gripped up from the depths of Rebecca’s stomach.

“AAAAAAAHHHHHHHH!!”

“I told you, the spell stopped working when she did. I don’t know why you wanted to see it. Gruesome. If it’s any consolation, at least you two will be together. Pretty sure you’ll be more or less a single package making the trip.”

Rebecca’s words, though loud and booming, barely left an imprint on Jane. The poor tiny girl had flushed all the air from her lungs, and the new air she was taking in to replace it was poor to say the least. Her mind began to fade, and what remained felt awash with Rebecca’s presence, feeling around her thoughts, memories and emotions as the stomach around her set to work. Rebecca was scavenging what she could from Jane’s mind, as her digestive system worked to scavenge what it could from Jane’s body.

The tiny girl made no further efforts to interact with what remained of her sister’s remains, now more a human’s food than human itself. Her mage-light went out. Everything became a vague blur of sound and sensation, as hungry walls clenched and released repeatedly around her. Over and over they came, working their acids into her, wearing her down, rendering her into that same growing pool of slop that was consuming her sibling.

*gurg*

*splash*

*shlorp*

Jill…

“That’s right, go on after her. I’m sure she’s waiting for you.”

*glorp*

…*urp*

…

*Scat/Disposal*

“Hrm! Ur… Umf.”

*plop*

*sigh*

Rebecca considered her situation for a moment. Yes, it would be gross, but it was a necessary part of her research. She wouldn’t want to let any of the valuable information from this experiment go to waste. She stood up and turned around, and looked down.

It looked just like any other shit, not that she’d made a practice of examining shits. Sitting at the bottom of the bowl, just as unceremoniously as ever.

That’s definitely them, though, she thought. It’s gotta be.

You’d never have known by looking at it that that smear of brown had once been a pair of sisters, her own schoolmates, her own friends…

“Sorry, girls,” she muttered. “But I’m going for number one, and well. You two were good friends, but you’re number two.”

No visible remains, she noted mentally. She ran a hand over her belly, and its thin layer of fat. No lingering memories either. Perhaps I can improve on the spell before my next experiment?

*flush*

She turned and walked from the bathroom stall.

Originally Published: 29-Oct-2022