For the past week, Grace’s mind often drifted back to the day she had her accident at the department store. She couldn’t help but fantasize about the events, replaying them in her mind.

In fact, before she went to sleep last night, she re-imagined them to make them even more arousing.

In this modified version of events, she waited for the perfect moment, until she was in the middle of the store, far away from any exits. She would then let all her poop out, feeling the huge mess fill up her panties and spread across her buttocks. In her fantasy, she was not ashamed or embarrassed by what had happened. Instead, she was proud of her accident and wanted as many people as feasible to see her with her poop-filled panties.

Grace walked around the store, feeling the poop squishing around in her panties. As she did, she noticed people staring at her, but she didn’t care. In fact, she wanted them to see her messy panties. She even began to flaunt them, bending over to pick things up and letting the mess show clearly under her short skirt.

Her hand plunged down the front of her pajamas as her pussy began to moisten. Her dirty thoughts continued…

She walked up to a group of women and said, “Excuse me, can you take a look at my panties? I think I had an accident.” As she lifted up the back of her skirt, the women looked at her in shock, but they couldn’t help but look. “Oh my god, that’s disgusting,” one of the women said.

Grace just smiled and continued walking around the store. She then walked up to a group of men and said, “Hey guys, you want to see something?” She lifted up her skirt again, revealing her poop-filled panties. The men looked at her in disbelief, but they couldn’t help but stare.

“How did you poop that much?” one of the men said, in awe at the size of the load in her panties. “I can’t believe her panties can hold that much shit,” said another.

Grace just giggled and continued walking around the store, showing off her messy panties to anyone who would look. She loved the feeling of being so dirty and the reactions of the people in the store just made it even more exciting.

But she wanted to make even more of a spectacle of herself. So she pulled her white camisole up over her head, freeing her large breasts. Her pointy nipples stood at attention, as she slipped her skirt down over her hips, revealing her messy panties for all to see.

Meanwhile, Grace pushed her head further back into her pillows, as she continued to massage her clit, her hips gyrating under her silky bed sheets.

Next, she imagined walking up to another man, who couldn’t help but get excited at the sight of Grace walking around, boobs jiggling with each step, showing off her panty-clad, messy bottom for all to see.

“Nice rack,” he commented, as he ogled her assets, a smirk playing at the corners of his lips.

Like she did with the others, she turned around to show him her messy panties. “Wow, that’s so hot. Can I touch it?” Grace was taken aback by the man’s forwardness, but she couldn’t deny that his excitement was turning her on.

She looked at the man and enthusiastically said, “Sure!” The man wasted no time, and put his hand on Grace’s butt and started to rub the poop through her panties, his fingers splayed out against her load, mashing it slowly against her.

Grace moaned, as she imagined feeling the man’s fingers against her ass, and the sensation of her warm poop spreading slowly across her butt under his touch.

Grace moaned loudly as she reached orgasm, her whole body convulsing with pleasure. She laid there catching her breath, as she withdrew her hand from her crotch and wiped it on her sheet. She switched the lights off, and soon after, drifted off to sleep.

***

The next morning, Grace stirred in her sleep, her eyes fluttering open as she slowly came to consciousness. The morning sun streamed through the window, casting a warm glow over the peaceful bedroom. She lay in bed for a moment, feeling the soft sheets and the gentle warmth of the sun on her skin.

Grace stretched her arms and let out a deep yawn before sitting up in her bed. It was Sunday, her favorite day of the week. No work, no responsibilities, she could spend the day doing whatever she pleased. She took a deep breath and let out a contented sigh, feeling happy and relaxed.

As she got out of bed and stood upright, she could feel pressure mounting in her bowels. Today would be the day, she wondered. Grace had been holding in her poop for the last seven days since her accident at the department store, and it seemed that with each passing day, it was becoming increasingly difficult to withstand the urge to let it all out into her panties.

She knew what was coming, and she couldn’t withstand the temptation to indulge in her desire to poop her panties on purpose, and was determined to have it be as big of a bowel movement as feasible. For the past couple of days, that meant that whenever the urge came, she fought against it. She had a couple of close calls at work, and it was a struggle to hold it even this long. She had been successful in holding it in, but she knew that it was only a matter of time before it would begin to come out, whether she wanted it to or not.

She got up, feeling the weight of her full bowels, and made her way to her dresser. She took out a pair of white cotton panties, the same ones she had worn the day of her accident, but didn’t end up soiling. After removing her pajamas, she pulled the panties up her legs and then up over her hips, and let the waistband go with a snap.

Using the full length mirror on her closet door, she turned around to check the back, and was pleased to see that they hugged her curves perfectly. They were tight, and molded to every contour of her butt.

She looked at herself, feeling a sense of excitement and tinge of fear. She knew that what she was about to do was not ordinary or acceptable. But at the same time, she couldn’t deny the thrill it brought her.

She took a deep breath and closed her eyes, and relaxed her bowels. At first, nothing happened. She gave a little push, and this time, she felt something as she felt the hard, bulbous tip of her poop pass into her panties. She moaned as she felt it start to fill her panties, tenting them out. The bulge grew, and she knew there was still much to come. As her poop got slightly softer, it began to spread out more and more. She pushed again, feeling another wave of poop come out of her. She could feel it coiling around in her panties, the warm sensation spreading all over her butt.

She opened her eyes and looked at herself in the mirror, admiring the view. The seat of her panties were pointing downward, in a large “V” shaped bulge. She guessed that from top to bottom, it was about six inches long. At its thickest point, near the top of the bulge, where the softest poop was, it was about 4 inches across. It was a dirty and erotic sight, and looking at it turned her on even more.

She turned around and looked at her reflection from different angles, enjoying the way her poop-filled panties looked on her. She couldn’t believe how much poop she had produced, and the mess was far bigger than she had ever wondered feasible.

“How could you fill your panties with that much poop, Grace? I’m so naughty,” she whispered, feeling the excitement create inside of her.

She walked around her room, feeling the poop squishing around in her panties and enjoying the sensation. The smell was strong, but she didn’t care. She was lost in her fantasy and nothing else mattered.

The mess had spread to the entire crotch area of her panties, and she could feel the poop smearing against her skin. She couldn’t believe how dirty and messy she was, and it excited her.

Grace couldn’t withstand the temptation to model her poop-filled panties. She stood in front of the mirror, using numerous poses and angles, pretending she was some sort of fetish model. She pouted her lips and stuck out her butt, admiring the way the bulge in the back of her panties looked. Cupping her breasts, she twisted her body and arched her back, enjoying the way the mess squished around in her panties.

As Grace admired the bulge in her dirty panties, she whispered to herself, “Oh my god, I can’t believe what a dirty girl I am.”

She went to her closet and fetched the same sheer white robe with feather trim that she was trying on the day of her accident at the department store. She slipped it on, and the sight excited her. It fell just past her hips, still giving a full view of her soiled panties. She couldn’t help but smile naughtily.

At the end of her modeling session, Grace took out her phone and took pictures of herself modeling the robe and dirty panties. She snapped pictures from different angles, capturing the bulge in the back of her panties and the way the mess had spread across her buttocks. She couldn’t wait to look at the pictures later and relive the moment.

The wondered of staying in her messy panties was too tempting to withstand. She wondered about how naughty it would be to go about doing her regular activities, all while still wearing her poop-filled panties.

Grace went to the kitchen to make herself a cup of coffee, as she often did on Sunday mornings. She filled the water reservoir with cold water, added the desired amount of coffee grounds, and turned it on. As she waited for the coffee to brew, she couldn’t help but touch the mess in her panties, caressing it gently. The smell of the coffee mixed with the smell of her shit created a strange and earthy aroma that excited her. She took a sip of the hot liquid, feeling it warm her insides. After the cup was nearly empty, she set it down on the counter.

To her surprise, pressure in her bowels returned.

“More? I can’t believe it,” she whispered, as the wondered of adding more poop into her already dirty panties was far too tempting to withstand. She closed her eyes again and pushed, feeling the poop slowly making its way out of her and into her panties.

This time the poop was of a softer consistency, and spread across her buttocks, mixing with the poop that was already there. Grace couldn’t believe how dirty and messy she was, but it excited her. She pushed harder, feeling the poop fill up her panties even more. The sensation was overwhelming, and she couldn’t help but moan in pleasure.

After she finished, Grace felt a sense of satisfaction wash over her. She knew that she should clean up, but the wondered of staying in her dirty panties was too tempting to withstand. As she sauntered about the kitchen, she could feel the mess squishing around in her panties with each step.

The weight of that massive load exposed the top of her butt and started pulling her panties down, and she had to grip the waistband to keep them from slipping down.

She was not empty yet. She couldn’t withstand the urge to push, feeling the poop fill up her panties even more. The dirty sensation was too good to withstand, and she knew that she wouldn’t be able to stop herself until she was completely spent.

With her bowels completely empty and her panties completely full, Grace’s arousal was reaching a boiling point. She walked back to her bedroom, feeling the mess squishing and shifting with each step, which only served to heighten her arousal further.

She couldn’t withstand taking one more peek at her messy panties. She had never seen anything like it before, the sheer volume of poop she had produced was impressive, even for her. The massive, cone shaped bulge was pushing out the confines of the fabric beyond all reason, with brown stains visible throughout. She opened the top drawer of her dresser, revealing her vibrator.

The front of her panties were nearly translucent with her juices, her pussy was leaking like a faucet. She turned the vibrator on and placed it over her panties against her clit, feeling waves of pleasure wash over her. She closed her eyes and focused on the sensation, letting the vibrator do its work. The mess in her panties only added to the sensation, and she gyrated her hips and couldn’t help but moan in pleasure.

With her eyes squeezed shut, she continued her fantasy from the previous night. The man, who had been playing with her poop filled panties, pulled her close and whispered in her ear, “Let’s go to the bathroom and have some fun.” If this were real life she would have hesitated for a moment, but in her fantasy, the wondered of being alone with this stranger in a public bathroom was too thrilling to withstand.

They quickly made their way to the bathroom, Grace’s messy panties proudly on display. Once inside, the man locked the door and turned to her with a sly grin.

“I don’t think we should take those off just yet,” he said, running his fingers through her hair. “I think we should have a little more fun first.”

Grace’s heart raced as she imagined the man pulling her close and kissing her deeply. His hands roamed over her body, exploring every inch of her as they kissed passionately.

As they broke aside, the man whispered in her ear, “I want to make you feel good. Let me take care of you.”

Grace eagerly nodded, and the man dropped to his knees in front of her. He pulled the front of her panties to the side and began to lick and suck on her clit, sending waves of pleasure through her body.

As she played with herself, Grace couldn’t help but think about how dirty and naughty that would be. The wondered excited her, and she pushed the vibrator harder against her clit. She could feel the mess in her panties squishing and smearing against her skin, and the sensation only turned her on more.

Yet, she longed for more, and to be even dirtier. Grabbing a towel from the nearby laundry hamper, she draped it over the seat of the accent chair in the corner of the room.

Slowly, she sat down in the chair, as her load made contact with the plush seat, and her poop squished in every direction. She let out a soft moan as she felt the warm sensation spread across her bottom, sending shivers down her spine.

It was both disgusting and arousing at the same time, and Grace was amazed at how the sensations were making her feel. She shifted in her seat, feeling the mess spread even further, and she couldn’t help but let out another moan of pleasure.

Grace could feel the totality of her mess pressing against her skin. She began to grind her hips against it. Every movement she made sent waves of pleasure through her body, and she couldn’t help but move around, feeling the poop squish and squelch with every motion.

Returning to her fantasy, Grace moaned and writhed as she imagined the man bringing her closer and closer to orgasm. As she imagined him reaching behind her to mash the poop into her ass, she couldn’t take it anymore and exploded in a mind-blowing climax, moaning loudly.

Grace collapsed back in her chair. As she did, the mess in her panties shifted and squished until it was almost completely flattened. She could feel the poop caked against her skin, and the sensation did little to let her come down from her sexual high.

As she lay there, laying in her mess, Grace couldn’t help but smile, reveling in the aftermath. After she came down from her orgasm, she got up. The towel that she had put on the seat of the chair was covered in shit, and the appearance of her panties was equally as shocking. They were stained with a dark brown mess, and the smell was overpowering. Only small patches of white remained, and her poop was smeared pretty much everywhere, up the back, up the front, and some had even escaped out of the leg holes.

Grace couldn’t help but feel a sense of excitement at the sight of herself in such a state. But as the reality of her situation set in, Grace knew that she needed to clean up. With a sense of reluctance, she made her way to the bathroom, her mind still reeling from the experience she had just had.

She slowly peeled off her dirty panties, and as she pulled the fabric off her bottom she could see that her ass was mostly brown, and had clumps of poop still stuck to it. Whatever was not smeared across her bottom sat heavily in the seat of her panties like a big thick pancake, which was several inches in diameter and still a few inches thick even after sitting down in it.

She threw her panties in the trash, and wiped the rest of the mess away with toilet paper, which took several minutes. She cleaned up as best she could, peeling off the biggest chunks and dropping them into the toilet, each with a plop. She knew that she needed to get in the shower and give herself a thorough cleaning.

As she did, she couldn’t help but marvel at the size of the mess she had produced. It was much larger than she had anticipated, and she couldn’t believe that she had been able to hold it in for so long. She knew that it was a strange thing to feel proud of, but she couldn’t help it.

She resolved that she would continue to indulge in her desire to poop her panties on purpose, and she couldn’t wait to do it again, while wondering how much she could poop if she could hold it in for even longer…