Bikini/Thong shopping with Sheila pt. I
You were unsure if this was a form of mercy from the Heavens above, or if Sheila had been truly right about what she said about her gas in the morning, and about her breakfast, but she didn't fart even once while she drove to her next destination, much to your relief. Sheila's insanely huge, soft and squishy cheeks started to feel better for you, making you blush.

'Maybe she was right after all...' You thought, getting comfortable, feeling like you were enveloped by a hybrid of a warm electric blanket and a waterbed. After a while, you felt the vibrations caused by the car stop, and the weight on and around you shifted as she got up. You were even somewhat used to the swaying of her hips as she walked, but the periodic tightening of the walls around you was a little odd.

Sheila got off her car, and after closing the door and locking it, she walked towards her next destination, taking her sweet time as she thoroughly enjoyed feeling you trapped deep between her prized assets, clenching them several times, since in her mind it was like giving you several loving hugs. Feeling that you had gotten comfortable, she became increasingly convinced of Lillian's claims that despite your vocal protests, you actually did enjoy her huge ass. She giggled quietly, since she was really looking forward to this part, her destination had been a fancy lingerie store, and she was going to try a lot of new panties, thongs, as well as bikini pieces to give you a very special show.

This store in particular had a very wide selection of plus-sized clothes, which is why Sheila favored it, since she could get what she linked at the sizes she wanted, but one would still have to wonder why despite that, they ended up being one or more sizes too small than they should. Lillian also usually came to buy her lingerie here as well, since it was one of the few places that offered underwear or bikinis that wouldn't snap trying to contain her giant butt.

Sheila walked around, grabbing only the skimpiest thongs, both lingerie and bikini pieces, as well as their respective matching bras. Once she gathered a large amount of them, she went to the dressing room and entered a cubicle, closing the door behind herself and locking it for good measure. She then pulled you out of her crack, cupping you in both hands to protect you from the light, since she was at least aware enough that you had spent more than half an hour 'snuggling' in the depths of her prized booty.

"What's this place?" You asked. After a few seconds, Sheila's other hand stopped covering you so you could see, but you still couldn't guess what it was, you were in some sort of cubicle.

"Close enough. Look!" She said and excitedly grabbed a lace thong, making your eyes go wide.
"We're in my favorite lingerie store... and you, my little sweetheart, are getting a VIP show out of it" She then said, making her tone flirtier with each word, making you blush, gulp and then go pale at the realization. Before you knew it, the black thong was already on the floor, she stepped on the leg holes and put you right in the back of it.

"Besides yourself, you could say you'll be going where no man has ever gone before" She said in a soft, teasing tone while she began to raise the thong. Your panic reached untold levels, your heart beat so hard you almost fainted, and when you regained enough of your bearings, you were already mere inches away from her crack.

"Auntie Sh-!" You tried to speak, but you were muffled as the wall of black fabric plunged you into the deep, dark abyss.

Sheila sighed, the thong reaching into the deep confines of her immense crack felt good, but it was nowhere near deep enough, so she pulled it up to get it deeper. The soft, thin piece of fabric tickled the sensitive inside of her crack, making her giggle quietly while she still pulled it deeper.

Although the sounds from the outside were heavily muffled, you heard Sheila giggling, and you guessed that she either really enjoyed putting thongs on, or this one tickled her. But then, there was a noise that made you skip a few beats: You heard a deep, ominous rumbling, albeit it was faint, for now at least.
"No..." Your breathing slowly quickened.

Feeling playful, Sheila used the thong as an impromptu butt floss, softly rubbing it up and down in between her titanic cheeks, enjoying the gentle tickling that made her shiver and blush. She could only imagine that her dear little Blaise would love being so up close and personal with her sexiest feature.

Suddenly, the giant wall of fabric began moving up and down, with you in it still, and heard more giggling, but also, the rumbling quickly intensified and even echoed around. The color drained from your face, this was the same kind of sound you heard earlier in the morning.

"Hmm... that feels really good... are you tickling me back there?" Sheila teased knowing well it was the thong, but she liked picturing your reaction.

"W-What?!" Knowing Sheila, and given her playful tone, you couldn't tell whether she was joking or not, but hoped she really wasn't. What was worse was that she kept rubbing the thong up and down her crack while still wedging it even deeper. The various groaning and rumbling noises intensified.

"Sheila! Don't...!" You hopelessly tried to scream when suddenly, a titanic roar nearly deafened you as an unbelievably huge torrent of hot winds blew into you, pinning you hard against the thong behind you, and Sheila's jiggly cheeks became a living meaty storm, reverberating with unseen intensity, seemingly making the colossal blast even louder than it was.

Sheila was caught off guard when her butt suddenly exploded with a huge fart, but soon embraced the feeling, as it made the thong feel even better. Her enormous blast lasted a whole minute before finally dying down.
"I guess you shouldn't tickle me so much back there, you see what happens hon" She said, almost failing to contain her laughter. Still, it was a feeling she enjoyed and without really thinking about it, she kept on slowly and gently rubbing the thong inside her vast, deep crack. This time she could feel that the tickling was stirring her bowels, but thinking it couldn't be any worse than her morning storm, she paid it no further mind, and thus, in mere minutes, her big ass loudly warbled again, unleashing a gigantic gust of wind that would've blown you across the store if the thong weren't holding you in place.

"Well, they do feel good, but I'm not sure I can wear them for long if you keep tickling me this much" She said with a guilty chuckle before nonchalantly unleashing a third blast, no less louder and smellier than the previous two.
"Hmm... yeah, probably not good for going out, though I'd love to wear this at home" She said as her latest booty blast died down. She took the thong off and carefully set it aside.
"The tickling got me a little bit gassy though, but don't worry, I'll spare you of those" She said to the thong, unaware that you had remained behind... in her behind.

The gurgling groaning noises only grew louder around you, much to your dismay, and now there was no fabric wall to lean against, instead you were encased from head to toe in her squishy blubbery butt flesh. You couldn't even scream, the pressure on all your body, including your face, was insane.

Sheila turned around, hoping that that'd be enough to spare you from her toxic fumes before she relaxed and let go of the growing pressure backed up in that huge booty of hers. A room-shaking, minute and half long roaring hurricane of a fart was the result, its smell was enough to make Sheila herself fan the air around her face.
"Oof. That was worse than I expected" she giggled "Good thing Auntie took you out, right?" she asked "you" but didn't mind not getting a response, imagining you were probably catching your breath.

Her stomach growled more loudly, and, knowing what it meant, Sheila simply unleashed the huge methane bubbles as they rushed down her guts, inadvertently squishing them with her gigantic cheeks, their loud 'popping' only added more noise to the already nuclear-like blasts. This titanic barrage was arguably just as bad as the morning ones, put together, that is.

You wondered how your skin hadn't been torn off by her raging winds, but were thankful it wasn't. Still, once again you were badly beaten, and this time with fewer farts, although they didn't smell that much worse than the last ones. You wondered if maybe Sheila was right, or at least partially right in that her feast only increased the volume and noise, but not the smell... not that she needed any further help with it, it was already nightmarish, and it burned your nose and throat as you breathed.

20 minutes later, and several more horrid booty blasts, she finally felt relief, and playfully spanked her butt.
"You see? I was already kind of gassy anyway, I don't think the food had anything to do with it... and besides, if it gets too bad I can simply take you..." She said as she went to examine her thong, cutting herself off when she failed to find you "...out?".

Just then, another big fart erupted from the deep confines of her crack, and the slight tickling she felt while her giant cheeks vibrated was enough to tip her off.
"Oh! Sorry sweetie. I thought I had gotten you out" She said as she brought her hand right before her crack, cupping it.
"But I appreciate you staying behind" she chuckled at her bad pun, she then used her free hand to slightly part her cheeks and let out one last rumbling fart, which, as she expected, blew you right out of her enormous booty and into her awaiting hand.
"You don't get that kind of ride in amusement parks though" She playfully stuck her tongue out for a bit before she went for another piece of clothing...
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May 12, 2023