Disclaimer:  This is a work of fiction.

While getting ready for her date with Sara, Emily is caught masturbating by her 12 year old sister, Anna.  The two girls discover they have more in common than they ever knew, and Anna tries to blackmail Emily.

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Emily and Sara spent the next six hours on the phone.  They talked about everything.  School, family, hobbies . . . nothing was left undiscussed and they were both pleased to find that they had a number of things in common.  Despite the fact that Sara was two years younger than Emily (almost to the day, their birthdays were just a week apart) they were both pretty mature for their ages and so they got along royally.  
	They also talked about their love lives (or lack there of) and how and when they realized that they might be gay.  Each was relieved to find out that the other was just as new at this as themselves, so neither was embarrassed from lack of experience.  They talked for a long time about what they were feeling while they made out in the fitting room, Sara admitting that it had taken all of her courage to initiate the kiss.
	At various points during their phone call one would be interrupted by their parents calling them down for dinner, which they both refused, preferring to stay on the phone.  At one point Sara's mom even came to ask if everything was all right, concerned about the amount of giggling coming from her daughter's room.  The need for sleep weighed heavily on them both, and eventually they hung up their phones, after having made a date for the next day.  
	As Emily lay in her bed, drifting off to sleep, she couldn't help think about everything that had happened to her.  She thought about Sara's thin white legs, about how the small of her back had felt under her hand, about Sara's tongue probing the inside of her mouth.  Her hand instinctively had worked instelf into her nightie and was stroking her pussy.  She also thought about shitting her panties and how unexpectedly good it felt.  She remembered running through the mall with pee streaming down her legs and how it had embarrassed her beyond belief but had also made her entire body tingle with erotic desire.  
	Emily's fingers worked insider her cunt, stimulating her g spot  She pulled them out and stuck them into her mouth, noticing that she must not of managed to get all of her shit out of her vagina earlier.  Her fingers had a slight smell of feces and were coated in a slippery brown goo.  She sucked on them and almost gagged, but managed to keep control and eventually sucked them clean, all the while her other hand now rubbing madly at her clit.  As she threw her head back and her body shuddered with orgasm, she noticed a little face staring at her from the crack of her open door.  She had lost herself in the moment and forgotten to make sure her bedroom door was closed and now her sister was watching as she climaxed.  Emily didn't know what to do and was lost amidst her orgasm so she pretended not to see and continued to stroke her pussy until the waves of pleasure had completely passed through her.
	She drifted off to sleep, still laying above the covers of her bed, with her hand pressed against her pussy underneath her panties.  A few hours later this is how her mother found her.  She pulled the covers up around her daughter and pulled her hand out of her panties (noting the sweet slime that glistened on her fingertips) and kissed Emily on the forehead.  She went to bed herself and Emily slept through the night having the most erotic dreams she had ever had.  When she woke up in the morning she masturbated again, knowing she would have to change the sheets since her pussy was now laying in a slimy wet mess, her dreams having provoked it to leak its juices all night.
	Emily stood under the shower that morning and let the warm water run over her body.  Her nipples were soon erect as the jets of water passed over them, and she rubbed at them idly.  She remembered her experience last night and knew she needed to clean out her vagina well in order to avoid a yeast infection, but as she became more aroused she got an idea.  As long as she had to clean it out anyway, it wouldn't hurt to get it dirty first.  Her clit became erect at the naughty thoughts that were going through her head.  
	Emily angled the shower head so that the water was hitting the wall so she could maneuver in the tub without getting too wet.  She bent at the knees and strained, trying to push out any shit that may still be in her rectum.  As she strained she could feel her anus begin to open as a large, hard, and nobly turd started to emerge.  She took a deep breath and renewed her efforts, pushing even harder.  She reached back and held out her hands to catch the turd as it finally fully emerged from her ass.  It was about 7 inches long and solid the whole length.  Emily stood up and stepped out of the tub, and then sat down on the rim of the bathtub, spreading her legs wide over the bathmat.  She brought her turd around and held it up to her nose, inhaling deep.  The smell was putrid and she gagged, this time however she was unable to hold it back.  Her mouth filled with vomit, and it cascaded down her chin, splashing off of her chest and running down between her legs.  As it came up she scooted back a little so that it could run between her legs and fall into the tub instead of out onto the bathmat.  
	Her puke was warm and slick, she rubbed her free hand over her body, enjoying as it slid around easily on the layer of slime that now coated her.  She  now turned her attention back to the piece of shit in her right hand.  She spread her legs wide and pulled apart her labia with her left hand, while positioning the tip of the monster poo against her vaginal opening.  She pushed, and it started its slimy journey deep into her vagina.  By the time it was fully emerged, Emily had orgasmed.  Just as it dissapeared into her pussy, the bathroom door swung open and in marched her little sister.  Emily fell backwards into the tub in surprise.  In a panic, she grabbed the shower curtain on her way down to prevent her fall, which only served to rip the curtain from the hooks holding it to the rod.  Fortunately the water from the shower immediately rinsed the vomit from Emily so her sister didn't notice.
	"Jeez sis, you're taking forever.  Are you okay?"
	"Yes, yes.  Sorry." Emily said as she got to her feet."
	"Masturbating again?"  Emily froze at that accusation, embarrassment flooding over her, she started blushing madly.  "It's okay.  It's normal.  We're sisters, you don't need to be shy about it."  Emily still had a look of utter embarrassment on her face so her sister added, "I masturbate too, it's really no big deal."

	Emily's sister (Anna) had just turned 12 and was already as tall as Emily.  Her hair was naturally a dark brown, and Anna generally wore it in pigtail braids.  Anna had always been more athletic than Emily, despite the fact that it was clear, even at this young age, that Anna's breasts would eventually be quite larger than her big sister's.  They were already larger, and Emily knew (with some among of jealousy) that soon Anna would be buying C cup bras.  Because of her playing sports Anna's body was trim and tight, with a few more defined muscles than Emily.  
	Anna commonly came into the bathroom while Emily was showering to put on makeup or do her hair.  The shower curtain usually provided some privacy.  Now that the curtain lay on the floor though, Anna had to reassure Emily that it was okay and she should just go about her business and not mind her.  Emily continued (or started) to actually shower and despite her embarrassment she noticed a tingle coming from her pussy at the thought of being this naked in front of her sister (who could see Emily clearly thanks to the mirrors above the sinks).  Emily was also quite enjoying the large turd that was inside of her, massaging her g spot with every move.
	Emily turned around to wash her hair and her eyes fell upon her little sister, who was at the sink brushing her teeth.  She was only wearing a thin t shirt and panties, her night clothes, and for the first time Emily noticed how nice her legs were, how perfectly rounded her ass was.  Emily blushed again at these thoughts she was having about her little sister, but then she noticed the reflection in the mirror.  Anna's shirt was old and thin, even coming apart in places.  It was so well worn that Emily noticed she could see her sister's nipples through the fabric of the shirt as her larger breasts bounced around freely as Emily brushed.  She even noticed that the nipples were . . . erect?
	Emily tried to ignore her sister's breasts and the burning lust coming from her cunt as she continued to shower.  Anna bent over the sink to rinse out her mouth and Emily's eyes ran to her ass which was not displayed for her to see.  She also noticed that there was a little patch between her legs where her panties appeared to be wet.  Emily moaned and then immediately realized what she had done and hoped her sister hadn't heard.
	"Shit" said Anna, who had just got toothpaste on the font of her shirt.  Much to Emily's delight and horror her little sister pulled off her shirt and threw it into the hamper.  Anna's breasts were magnificent and now there was no doubt in Emily's mind that her nipples were indeed erect.  For a moment, Emily wondered what it would be like to have one of those nipples between her lips.  Anna was definitely horny, but what was turning her on?   Was it Emily?
	Emily reached to turn off the water but Anna said, "No leave it on, I think I'm going to jump in." And so Emily just stepped out onto the bath mat and grabbed a towel off the hood while she watched her sister peel off her tight fitting panties and step into the water.   Emily looked at her sister's pussy and longed for the days when she had as little hair as her sister.  It would make shaving so much easier.  She imagined her tongue running over the smooth outer surfaces of her sisters pussy before plunging deep inside for a taste.  She blushed again and put the towel over her head as she dried her hair.
	Anna took this opportunity to examine her sister's body, which ever since she walked on Emily masturbating the night before she couldn't stop thinking about.  Anna's eyes roamed over her sisters thin and tight body, admiring her smooth skin and shaved pussy.  It was then that she saw something sticking out from between her sister's labia and upon closer inspection could see that it was a turd.  Her initial reaction of disgust quickly turned to one of interest as she could feel herself become even more aroused (which she didn't know was even possible.)
	Emily however was finishing drying her hair under the towel and didn't realize that her shit had begun to slip out of her pussy until she felt it suddenly slide in deeper.  She lowered her towel to see her sister standing right in front of her with one hand pushing hard against the shit that was now pressing against her cervix.  Emily's mind tried to grasp what was happening.  Her little sister had her fingers pressed into her pussy, and was pressing a piece of her own shit deeper into the warm folds of her vagina
	Having been caught with her own shit in her vagina, what was there for Emily to say or do?  "How does it feel" said Anna, continuing to massage the poo log into her sister's hole.
	"a . . amazing" managed Emily as it squished back and forth over her g spot  In a few more seconds Emily found herself having an orgasm, her cum running over the shit in her vagina and the fingers of her little sister who was holding it in there.
	"So you like having poo up there?" asked her sister in a crafty tone.  Emily was about to answer in the negative when Anna pushed harder on the poo, sending a wonderful sensation through Emily's g spot  
	"Yes," whispered Emily, out of breath from her orgasm.
	"Interesting," said Anna.  With that Anna removed her hand from her sister's pussy and squatted over the floor.  Her face screwed up as she began to push and soon there was a large pile of semi soft poo on the floor underneath Anna's young legs.  Emily watched this with her mouth agog, she couldn't believe she was actually getting turned on by watching her 12 year old sister shit on the floor.  But what Anna did next, Emily did not expect.
	Anna reached down and scooped up a handful of the semi-soft stool and thrust her hand out at Emily's pussy, pressing her own poo deep within her big sister's dripping wet cunt.  She repeated this process until no more poo could possibly fit inside her sister.  There was only a smudge of poo on the tile floor now, which Anna squatted down, and wiped off with her butt.  Then Anna got on her hands and knees on the bathroom floor and ordered her sister to clean her up.  Emily reached for the toilet paper and Anna reached up and slapped her hand away.  "With your tongue!" she demanded of her elder.  
	Unable to deny the request, Emily bent down and began at first to kiss her little sisters sweet butt cheeks, getting a little poo on her lips, which quickly spread around like lipstick.  She reached out her tongue and licked her sister's cheeks until they were clean.  She started to wretch and leaned over the tub while a torrent of vomit escaped her mouth at the taste of her sister's poo.  She caught her breath and then with her hands, spread her sisters butt cheeks open and began to kiss the brown ring of her sister's sphincter.  Her tongue probed the area, cleaning it until it was glistening in Emily's saliva.  Anna had begun rubbing at her clit during this, but now Emily moved her sister's hand from her crotch as she moved her head lower and kissed her sister's now dripping pussy.  She gingerly spread Anna's labia with her tongue and pushed it until it was as deep inside her vagina as she could get it.  Anna tasted sweet and Emily loved it.  Emily's tongue flicked over her sisters clit, her nose now buried in the warm folds of Anna's young pussy.  She kept this up until Anna came, at which point she starting grinding her hips and rubbing her sex juices all over her sisters face, who eagerly lapped at the little pussy.  Emily had been working on her own clitoris during this and a few seconds after Anna she too came with a loud, intense orgasm.  The two girls collapsed on the floor of the bathroom, sweating and shaking with pleasure.  Their mouths locked and their tongues made love.  
	They came rushing back to reality when there was a loud knock at the bathroom door.  Their mother's voice came from the other side,  "you girls alright in there?"  Anna managed to yell back,
	"yes, I'm just finishing my shower!'  They waited until they were sure their mother had left and then giggled at their close call.  Some of Anna's shit had fallen out of Emily's vagina - the remaining amount seeming to stay in there of its own accord.  
	"I should get cleaned up." Said Emily as she started to stand.
	"I want you to keep that in your pussy all day."  Anna said in an earnest tone.
	"I can't do that, I've got a da . ."
	"A date?  You were going to say date!"  A mischievous grin spread across Anna's face.  "If you don't keep it in there I'm going to tell mom that you're a lesbian and that you have a girlfriend!"  Emily didn't like the idea of keeping her sister's poo in her vagina all day, but neither did she relish the idea of coming out to her parents only a day after her first kiss with a girl.  Besides, there was something erotic about the thought of keeping it in there, Emily liked how naughty it was and knew that it would stimulate her every time she moved.
	"Fine." said Emily and Anna giggled with delight.  She pulled Emily close and stuck her tongue down her throat as a thank you.  Emily cleaned up the poo that was left on the ground, wrapped her towel around her, and went to her room as Anna finished her shower.
	Emily pulled up a pair of tight fitting satin panties, and she hoped they would do a good job with any potential leakage.  She also didn't want any fowl smells to be emanating from her pussy during her date so she picked out a pair of tight jeans to wear, hoping they would do a better job at containing odors than a skirt would.  She really didn't want to go on her first date with Sara while her vagina was in the full state - she would have to make sure that anything they did stayed above the clothes.  This saddened her but also she wondered if they would have done anything more than kiss anyway, it being only their first date and all.
	Emily put on a bra and a sheer black blouse that buttoned up.  She fixed her hair and even stole some of her mother's red lipstick, smearing it on her lips.  The red stood out against her pale skin and black hair, and Emily thought she looked quite good.  She was actually enjoying the full feeling coming from her vagina, and every time she walked her g spot was stimulated, ensuring that Emily was always smiling while she moved.  When she was fully dressed she looked at herself in the full length mirror of her bedroom.
	"You look hot" came her sister's opinion from her doorway.
	"Yeah well if anything goes wrong with you know what while I'm out with Sara I'm going to kill you."
	"Relax, your panties will keep it up there . . . provided you can keep them on.  Besides, I'm going to enjoy thinking about you all day now.  And it better all still be in there tonight, I'll check after dinner, and you know what will happen if it isn't!"  Emily stuck her tongue out at her little sister who turned to leave.  She couldn't help but watch that sweet little butt walk down the hallway, her pussy twinging as she remember that just over an hour ago she had her tongue running over every inch of it.
	Emily looked at the time and squeaked.  She had better get going if she was going to be on time to pick of Sara.  As she ran out the door her mother asked where she was off to.  Emily called back that she was going out with a friend and agreed to be home by dinner.  She jumped in her car and headed off in the direction of Sara's house.