Well, this was completely unexpected... or so you thought at first. That earlier gigantic bomb of a fart should've been plenty warning of things to come and you probably knew this very well in the back of your mind but the idea of not making Lillian left out specially since you did find her humongous ass attractive overpowered what was most likely your self-preservation instinct speaking.

The blaring methane hurricane kept blowing upon you, pressing you against the floor as if trying to flatten you though it only had enough force to pin you down. To think that a "simple" gust of bodily wind could completely nullify the strength of an entire body would sound ludicrous to anyone when the sheer difference in sizes isn't mentioned. But here you were, enduring the full blast. Even for Brob standards that you were unfortunately acquainted with, this had to be one of the bigger farts you've encountered.

"Wow" Jen muttered, the room went pretty much dead silent while Lillian's big butt let out its rumbling blast, loudly echoing around the walls. It wasn't really unusual for her except for the fact that she definitely didn't want to let loose while having the guys around. Jen glanced at Jim, Pete and Joel who were all nearly frozen like statues, though they did experience some shaking as the powerful vibrations reached even them.

"In my defense, I didn't think it'd be so big, I thought you went to the bathroom to vent out?" Cindy said, still giggling at the situation.

"Cindy!" Almost uncharacteristically, Lillian got embarrassed by how casually Cindy blurted that out. Under normal circumstances she would've laughed it off but right now it was anything but a regular situation and her face blushed about as intensely as Jen's had earlier.

"Hey, it's not the end of the world... uh, I mean, I guess it means you eat well or something" Jim said, trying to paraphrase things he'd heard from your mom in an attempt to comfort her. Lillian turned to look at him but her own eyes seemed to have a more cryptic expression and then she raised an eyebrow, surprised that none of the other guys had made much of a fuss. Then again, Jim had a very close up and personal time with Lulu's massive bombs so maybe he was still desensitized from the experience.

"If anything that was kinda impressive" Joel added, remembering his encounter with Veronica who also seemed to boast quite the massive bursts of gas when she let rip but he had much more limited experience with Brobs and didn't know if that was supposed to be normal among them.

"Don't think that's helping" Pete said and indeed, that only made Lillian more mortified.

'Did I knock him out? Please tell me he didn't get knocked out... but maybe that's for the better, I don't even want to imagine what he's gonna say when he comes out' She thought, however she mistakenly assumed that her body was done because the soft stress ball Cindy had thrown at her belly had dislodged more gas bubbles than she first thought, a fact that she was only reminded of when her gut fell very bloated once more as said bubbles merged into a larger ones that rapidly rushed down, resulting in an even louder, rumbling 10 seconds-long fart that forced everyone in the room back into silence.

Back under her crack, you hadn't even been able to get up again when you heard, faintly at first, a deep, bassy series of rumbling groans coming from above. All you could do was mouth a 'goddammit' right before you were blasted with another gigantic eruption. Not at point blank but you were still directly under the "line of fire", the intense hurricane winds pinned you down against the floor while the overwhelming warmth, bordering on being called heat, enveloped your diminutive form. Both you and the ground quaked to the powerful booming reverberations the explosive blast made on its way out.

Meanwhile, somewhere else...

Caren was gleefully skipping, heading deeper into Altina's bowels while dragging by the arm a Chrissy that was on the absolute edge from breaking down, held together only by an ungodly amount of spite and hatred, plus a burning desire for revenge, refusing to go down until she's exacted it on all who wronged her. Suddenly, she stopped and that was enough to snap Chrissy out of her near-catatonic state.

"What... happened?" She asked in a weakened monotone voice.

"I just felt a great disturbance somewhere... I think some thicc beauty just ripped a pretty huge fart and I missed it but I think there was at least someone there to enjoy it" Caren said in a surprisingly stern and serious tone, looking almost meditative.

"I don't think anyone other than you enjoys this bullshit" Chrissy said, the lack of emphasis in her voice contradicting the sheer rage and contempt in her words.

"Oh well, lil' sis will provide us with great joy! Onwards!" Caren resumed her sprinting, dragging a Chrissy that more or less resigned to her fate if only to come out of all this and finally unleash the full extent of her vengeance.

Back in the girls' dorm...

"You trying to kill him?" Zuemy snickered, earning a silent but wrathful glare from Lillian, whose blushing face thoroughly surprised Jen and Cindy, they'd never seen her so embarrassed and even felt a bit bad, one for having envious thoughts and the other for messing with Lillian at your expense.

'I didn't think tugging the thong away would irritate her this much, huh' You thought, being forced to slowly breathe through your mouth in an attempt to not suffer the smell too much though it wasn't all that much worse than what you already knew. If anything Alisha's farts had been way hotter in terms of actual temperature but the smell around you wasn't pleasant by any measure of the world, it mostly reeked of rotten beans and it had hints of spice and cheese which was pretty much in line with what you saw her eat back on lunch. The sheer noise rattled your whole skeleton and the intensity of the furious winds was really high though.

You even lost your sense of time for a bit, when you snapped back to reality the thunderous blast had already subsided with no way to tell how long it had been. Still, you got up and decided to get the dare done since you'd already screwed up, at least it wouldn't be for naught. And so you climbed up one of Lillian's massive cheeks and as you'd done before, you got closer to the middle of the immense chasm that was her crack. This time, when you grabbed the wall of cloth that was the back of her thong there was no resistance. Now all you had to do was to climb farther up pulling it along to undo the wedgie to the best of your ability.

'Huh?!' Lillian was beyond surprised when she felt that you were climbing up one of her cheeks. She thought you'd either be knocked out cold or desperately trying to get out from under her but instead you were... continuing the dare? 'Did he not mind the noise or the smell?' She wondered, not complaining though but rather feeling a mix of amusement and curiosity. If you really didn't mind her farts then she had a whole lot less to worry about and this thought in particular lodged itself into the back of her mind, even if she wasn't fully conscious of it she'd keep thinking about this for a long time.

Lillian didn't even notice at first that her wedged thong was slowly getting pulled out as you climbed up but your repeated tiny movements, gripping her squishy flesh with one of your hands while your feet dug into is plentiful plumpness gave her pleasant tickles that she greatly enjoyed but also made her feel bad, you were pleasuring her butt and all she'd done in return so far was to blast you with two huge farts at a very close range.

Minutes later you finally emerged from between Lillian's immense asscheeks, pulling the thong with one of your hands. You let go of it as slowly as you could and the garment snapped back though this time it didn't get fully swallowed though it probably would get lost between those gigantic glutes if Lillian stood up and walked a little but nonetheless, the dare had been completed.

"Wow, nice job!" Zuemy gave you sincere applause. She thought this would be a more amusing incident with you fainting from enduring not just one but two of Lillian's booty blasts, which were never small at all. You turned out to be sturdier than she gave you credit for but the fact that you weren't even making a fuss about it only piqued her curiosity further.
'I wonder if Lillian caught onto this before I did... so that's why she wants him' She thought with a smug smirk, as this already got her mind working on more antics for later on.

"He even picked out the wedgie!" Lillian said in disbelief, which only surprised Jen and Cindy even more, the two were under the impression that you'd just escaped from Lillian's monster booty, already a massive feat given her size.

"Damn, talk about passing with flying colors!" Zuemy giggled "Good thing she didn't send you flying though"

"Heh, thanks" You laughed a bit embarrassedly, not sure on whether to feel proud of your feat or not, since you almost failed "By the way... Lillian, I'm sorry" You said, making the girls go silent though you wouldn't notice for a bit.
"I think I was a bit too rough when I tried to pick out the wedgie and for that I'm sorry, I didn't mean to upset you" You apologized with such sincerity that even though the girls at first found it funny they couldn't laugh anymore.

'Wait, he thinks he made her fart?' That was the thought Cindy, Jen and Zuemy unknowingly shared. Similarly, Lillian was baffled herself because the last thing she expected from you was an apology.

"Wait, that's not-"

"It's alright, it was my fault, not yours" You said, thinking Lillian was going to refuse the apology "I, uh... I'll try to be more careful"

"_{That sounds like he's thinking there's gonna be a next time}" Zuemy teasingly whispered to her, making her blush from both embarrassment but also arousal. The fact that you didn't seem to be grossed out by her at all not only intrigued her but reinforced the idea that she was right about choosing you, as if something called to her that you were the one for her, some odd sense of familiarity, like you'd known each other in the past...