Kierra's enormous ass cheeks wobbled like mad inside of you as you watched her descend the stairs from the viewpoint of her panties. Finding constant 360° vision to be extremely disorienting, you tried to focus your attention on the front of her skirt, since it remained more or less still compared to everything else around you. Just as you were finally starting to get your bearings, however, your whole perspective shifted, and you felt the pressure of Kierra's butt smooshing into you with its full weight. You were expecting to feel utterly crushed, maybe even have the wind knocked out of you, but... this felt completely different. The pressure was comfortable, as though holding this woman's butt tightly was exactly what you were meant to do. It felt... right. You were fulfilling your purpose.
Wait, what were you just thinking?! You're a man, not a pair of underwear! ...Not that you could prove that to anyone at the moment. Surely, though, something would come along soon to reverse your misfortune, and you could stay far, far away from Layla and her family for the rest of your life after that. You had to hold out hope.
---
Based on the view from between her legs and the sound of the engine starting up, you could tell that Kierra had gotten into her car. For a few minutes it was relatively calm, but it soon became difficult not to notice how hot Kierra's crotch area was getting. Your insides, by extension, were growing hot and stuffy as well. While it was uncomfortable, like many sensations you had experienced this morning, you were completely unprepared for what happened next.
All of a sudden you were wet, only a little, as though someone had flicked their hands at you after washing them. The feeling didn't bother you much, but the taste that accompanied it was unreal. You had already had the displeasure of smelling Kierra's farts several times yesterday, but this was disgusting in an entirely different way. You had no mouth to close, so you were forced to take the full brunt of the blow as another bead of sweat, then another formed between Kierra's cheeks and dropped onto your waiting palate. You imagined this is what it would taste like if you ran your tongue directly between her ass cheeks, the sour, musky flavor driving you absolutely crazy. You almost thought it couldn't possibly get worse, but then you remembered who you were dealing with as your unintentional owner.
Up above, it seemed you were not the only one getting uncomfortable. As if on cue, Kierra took one hand off the wheel and rubbed you into her crack to soak up the loose butt sweat that had accumulated there. If a few drops of sweat had tasted like running your tongue up her ass, this was like drinking a bottle of her sweat. You mentally shriveled in defeat, your brain practically shutting off.
---
The next thing you knew, Kierra was standing up and getting out of her car, releasing you (partially) from the swampy hellhole of her buttcrack. The light jiggling of her walking resumed, though this time it didn't feel quite as disorienting. You weren't sure whether to be relieved or disturbed that you were actually starting to get used to this. After the second staircase of the day, you heard someone up above strike up a conversation with your wearer. You could only partially make out what was being said, but it seemed to be something work-related. After that, it was back to the uncomfortably pleasurable feeling of being sat on. If Kierra worked a 9 to 5 desk job, you had a bad feeling you had a lot of this ahead of you...
In a rare stroke of good luck, however, the air conditioning in this office was working perfectly fine, and the swamp ass she had developed in the car seemed to fade after a while. You could even feel goosebumps forming on the flesh of her cheeks as the A/C did its job a little too well. "God, is there any part of being a pair of panties that doesn't feel creepy or gross?" you thought to yourself.
-----
Having plenty of time to make your peace with the situation, you slowly settled into an uneasy meditation as Kierra worked away above you. Every once in a while you'd vibrate along with her leg as she subconsciously bounced it up and down, but otherwise there really wasn't much to focus on. You could feel the body heat of your captor radiating off of her butt flesh, her cheeks nestled cozily within you. The best analogy you could think of for how you felt right now was that it was like lying down for a nap after a big meal. Actually, a nap sounded pretty good right about now...
---
When you came to, the first thing you heard was a sound that instantly sent shivers down your spine: a low grumble up above you. Still half asleep, you had no time to prepare as Kierra bent over and let loose onto you. Not wanting to disturb her coworkers, she made sure her cheeks were spread apart when it happened, and so the fart made only a small hissing sound as it soaked into your body. Thinking she had successfully kept her emission to herself, she had no idea that she was basically farting directly into your open mouth. Another slow gas leak soon followed the first. After a few more seconds, she released a third, though despite her best efforts this one made an audible PPBBBFFTT as the air from her colon brushed against her cheeks. Her stomach growling again, she decided it might be best to deal with the rest of this somewhere more private, and stood up to go to the bathroom.
You thought you were prepared for the sharp, stinging scent of Kierra's gas, but each new burst of it felt like the first one all over again. You were instantly surrounded by a muggy miasma of stink. Before you had time to recover, your heart skipped a beat as you felt the same tugging sensation from before, and your body began to shrink. Since you were still wrapped around Kierra's waist, this meant that you only had one place to go, and as she stood up you were slowly sucked deeper and deeper into her asscrack.
---
Kierra walked to the bathroom stall farthest from the door and stepped inside. Now that she was in private, she took a second to pick her thong out of her crack. More concerned with getting rid of her gas problem, she paid no attention to the fact that her thong had been a pair of briefs when she put them on that morning. Satisfied with her adjustments, she went to remove her skirt, but paused instead with her hands on her hips. Realizing that she didn't actually need to use the toilet, she instead turned around and plopped her fully clothed butt onto the seat, her voluptuous buns spilling over the sides. She wiggled a little to make herself more comfortable, then set to work.
You knew she'd never do this to you if she knew you were there, but as far as she was concerned, you were just a normal pair of her panties. You were supposed to wrap around her waist, cover her butt, and absorb anything she produced while she had you on. No living person should ever have to experience such things, but thanks to some million-to-one fluke of the universe, the role of that inanimate object now belonged to you. You wished you could be doing anything else, you wished that you could have at least been the panties of a woman who wasn't quite as gassy as Kierra seemed to be, but your fate was already sealed, and you would be performing your duty whether you wanted to or not.
You wouldn't have believed it was possible for anyone's farts to last this long or smell this bad had you not already experienced them first-hand yesterday. The first one was loud and brassy, lasting more than fifteen seconds, and as soon as it ended another began. Within the confines of Kierra's ass, your panty body shrank smaller and smaller. It took over ten minutes for her to finally get the last of her gas out, and when it had all cleared...
