It was just another day at Tremorton High and the students were not really doing anything out of the ordinary, and lucky enough there was no alien threat or monsters attacking the city for once. But one of these teens wasn't just your average joe, besides the robotic teenage girl there was also a nerd individual named Sheldon and he was having a good day.

"Man what a great day this is" He said, walking to his locker room.

"Having a good day, I see?" Tiff asked with an innocent tone.

"Must be a first then" Brit asked.

Sheldon gasped as he heard Tiff's and Brit's voice "Ahh! O-Ohh…hey there I didn't expect to see you two here hehe h-hi"

"Did you expect us to not come, Sheldon?" Tiff asked.

"I mean after the incident last couple of days I thought it would take some time to reintegrate yourselves?" He asked, smiling nervously.

"Yeah, it did." Tiff said. "But we did it real quickly." Brit added.

Tiff and Brit exchanged knowing glances as Sheldon nervously tried to maintain his innocent façade. They had a hunch that Sheldon was behind the prank that had happened to them, and they were determined to uncover the truth.

Tiff folded her arms across her chest and raised an eyebrow. "Sheldon, we know you were behind that prank."

Sheldon's eyes widened, and he stammered, "W-What? No, no way! I didn't do anything!"

Brit chimed in, smirking. "Oh, come on, Sheldon. We may not have concrete proof yet, but we have our ways."

Sheldon's expression shifted from nervousness to curiosity mixed with a hint of panic. "W-What do you mean, 'your ways'?"

Tiff stepped closer, her voice dropping to a low, conspiratorial tone. "Let's just say we have our sources, Sheldon. And those sources provided us with some interesting footage from the school's camera feed."

Sheldon's eyes darted between Tiff and Brit, his mind racing to come up with an excuse. "B-But... the school's camera feed? That's confidential! You can't just access it like that!"

Brit smirked and held up her phone, showing a snippet of the footage. "Oh, we have our methods, Sheldon. And they've been quite revealing."

Sheldon then remembered how the duo had made it their mission to torment Jenny, making her school life unbearable. Sheldon, unable to stand their constant bullying, decided it was time to put an end to their mischief once and for all.

Determined to give Tiff and Brit a taste of their own medicine, Sheldon spent days meticulously planning the perfect prank. He knew he had to be careful not to cross any lines, but little did he know how quickly things would spiral out of control.

The opportunity to execute his plan finally arrived during lunch break when the school courtyard was filled with students. Sheldon planted a harmless-looking prank device near Tiff and Brit's usual hangout spot, hoping to startle them and make them think twice before bothering Jenny again.

Unbeknownst to Sheldon, the prank device malfunctioned, triggering a chain reaction of unforeseen events.

"L-Look im sorry ok? It was never meant to go that far I just wanted you two to stop teasing Jenny"

Tiff's face flushed with anger as she glared at Sheldon. "Do you think this is some kind of game, Sheldon?"

Brit crossed her arms, her voice sharp with frustration. "We were humiliated!"

Sheldon's face paled, realizing the gravity of the situation. "I-I didn't mean for it to go that far, I swear! I just wanted to teach you a lesson and protect Jenny!"

Tiff and Brit exchanged glances, contemplating Sheldon's words. They knew they had the upper hand now with the footage in their possession, but they also understood the importance of teaching Sheldon a valuable lesson about the consequences of his actions.

Tiff spoke up, her tone serious. "Sheldon, we won't show the footage to anyone if you promise to never pull another prank like this again. And we're not talking about just Jenny; we mean pranks in general."

Brit nodded, emphasizing Tiff's point. "If you agree to our terms, we'll keep the footage to ourselves. But if we catch you crossing the line again, the consequences will be severe."

Sheldon sighed, knowing he had no choice but to accept their terms. "Alright, I promise. No more pranks. I've learned my lesson."

With an understanding nod, Tiff looked around the school courtyard, searching for a suitable location for their conversation. Spotting an empty classroom nearby, she turned to Sheldon. "There's an empty classroom over there. Let's go talk in private."

Sheldon followed Tiff and Brit into the classroom, feeling a mix of nervousness and relief. He knew he was fortunate that Tiff and Brit were willing to give him a chance to make things right. A he entered the classroom, feeling a sense of relief that he could finally have a conversation with Tiff and Brit without any interruptions. The room was quiet, and he could hear his own breath as he exhaled, trying to calm his nerves.

However, as he took a few steps inside, he heard a faint click behind him. He turned around to see Tiff standing near the door, a mischievous smirk playing on her lips. Sheldon's eyes widened as he realized she had locked the door.

"Uh, Tiff, what's going on?" Sheldon asked, his voice tinged with a hint of apprehension.

Brit joined Tiff's side, crossing her arms and leaning against the wall. Her gaze bore into Sheldon, intensifying the unease he felt. "Oh, Sheldon, we thought it would be best to have this conversation in private. Just the three of us."

Tiff took a step closer to Sheldon, her tone softer but still filled with authority. "You see, Sheldon, we believe in justice. And justice requires accountability."

Brit chimed in, her voice cold and calculated. "You may have promised to stop pulling pranks, but that doesn't mean there won't be consequences for what you've done."

Sheldon's palms grew sweaty, his throat dry. He swallowed hard, searching for the right words. "I... I didn't mean for any of this to happen, I truly didn't. I'm sorry, I really am."

Brit took a step forward, her tone taking on a more serious edge. "You caused chaos and embarrassment, and it's time for you to face the consequences of your misguided actions."

Sheldon's legs felt weak, and he sank into a nearby chair, feeling trapped and vulnerable. He knew he had brought this upon himself, but he couldn't help but feel a glimmer of hope that they would show him mercy.

"It's time for your punishment to be taken!" Tiff said as she turned around, bent over and took off her shorts, allowing Sheldon to see her massive ass in a pink thong as she slowly moved her ass near him.

"Wait…what?" Sheldon blushes at the situation "What are you do-"

"Grab his face and shove it up my butt cousin" Tiff asked from Brit.

"You got it!" Brit said as she grabs the back of his head and shoves his face between her cheeks.

"Hmhmhmhmhm Hm" Sheldon muffles, his face now full of ass.

"Ooh yeah, bet this is the first time you get a girl booty this close to you huh? Enjoy it while it lasts asshole, because I got plans for you besides this" Tiff laughs, swinging her ass left and right.

Sheldon's face moves with Tiff's swinging sweaty ass as Brit makes sure his face stays there.

"Maybe you should try to sit on him now, cousin, make sure all of your weight is pressing down on his stupid face rather than let him be standing like that.

"Makes sense." Tiff said as Brit takes his face out of Tiff's ass and holds him down.

Sheldon coughs "W-Wait, stop!"

"Sorry, it's not happening. Just lay there until Tiff uses your face as her personal seat" Brit said with a smirk.

Tiff laughed as she got to him and hovered her wet ass above his face. "Ready?" Tiff asked.

"Do it Tiff!" Brit said before slapping her ass "Crush his face"

"Here we go loser!" Tiff told Sheldon as she slams his face with her wet meaty cheeks.

Sheldon groans in pain from the weight after she booty smashed his face in and his legs twitched at it but it could not be heard, the two of them laughed at this, enjoying his pain.

"This is just the start nerd" Tiff said as she grinds her ass on his face a bit more before her stomach started to growl "Oooh my stomach, looks like you just got promoted Sheldon.

'Wait…she is not going to is she?'

*PPPPPPPPPPPPPPPPPPPRRRRRRRRRRRRRRRRRRRRRRBBBBBBBBBBBBBBBBBBB*

Tiff unleashes a stink bomb of a fart, it had a mustiness and staleness to its smell which then evolved into a rancid smell of sourness.

"To fart cushion hahaha!"

"Geez!" Brit fans smell the smell away "How much of those baked beans I gave you did you eat?"

"All of them. And don't fan the smell away. I'll have to give him more." Tiff giggled as she farted again on Sheldon's face.

*PPPPPPPPPPPPPPPPPBBBBBBBBBBBBBBBBBBBBBBBBBBRRRRRRRRRRRRRRRRRR*

"oOOH! Shit that one felt big" Tiff said, enjoying it as she slapped her thick ass and grinds on his face "Be glad nerd! Many people would kill to be in your place, right now you're worth nothing but to live as a fart cushion" Britt said, as she watches Tiff enjoy herself with it.

Sheldon tried to push her ass up as it pressed firmly against him, its weight and thickness making the task even more challenging, its supple skin bulged in his hands, the bouncy surface was slippery against his skin.

"Look at this Brit, he is actually trying to lift me up. Ain't no way that is happening with those noodle arms of you" She said before lifting her ass up only to sit on him again with a BAM! Being smothered deeply by Tiffs stinky ass

"You like this Sheldon? You like my big and sweaty stink meaty ass? Tell me!" Tiff yells at him while clenching her ass cheeks hard on his face.

He muffled a groan as he felt the strength from her huge ass, he always wanted to be in a situation like this, but not nearly as stinky.

"You want some of this Brit?" Tiff asks her cousin with a toothy grin.

"I'll take his lap if you don't mind." Brit said.

"I was gonna offer his face but sure go ahead" Tiff said.

"Thanks." Brit said as she sat on Sheldon's lap.

"HMHMHMHP" Sheldon groaned again, feeling the weight of Brit phat ass onto his lap

"Now you get to enjoy two butts~" Brit said as her stomach gurgled.

"Uh oh! Looks like we have a new friend ready to bust some moves hehehe, hope you're ready" Tiff laughed.

Brit giggled as she blasted a giant fart on Sheldon's lap, making it warm.

"Nice!" Tiff said before grunting and bombarding Sheldon face with a SBD fart.

*FSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSHHHHHHHHHHHHHHHHHHHHHH!*

Sheldon's face under her ass was contorted in disgust from that, it smells really bad, it was like a sewage pipe just broken and there was a pungent, foul, and nauseating smell, a combo of sulfur and decaying matter.

"Whew, I had to let that one go! Smells good right fart cushion?" Tiff asked.

"I'm sure he would be more than thankful for such a delightful gift to his nose dear cousin" Brit said with a giggle.

"Please stop, this stinks!" Sheldon was muffled.

"No way worm! You're gonna be sniffing these farts till we are done, in fact! Let's switch places cousin, show Sheldon how your farts taste like hehehe" Tiff said.

"Ok." Brit said as they got up and Tiff slams her meaty ass on Sheldon's lap.

"AGH!" Sheldon screams.

"Pipe down bitch, its Brit time to slam the booty work"

"I gotta get comfy first." Brit said as she took off her pants and was in a black thong before sitting on Sheldon's face.

"HHMHMMHMHMHPHMHMHMHMH"

"Much better" Brit smiled, grinding her phat caramel booty on him with gusto.

"Mmm, your face does feel good as a seat~" Brit said as she grinds her ass in circles as she rips small farts.

*PPPPBBB*

*RRRRRPPBBB*

"Take a deep whiff." Brit said as she laughed.

"That was kinda weak not gonna lie" Tiff laughed.

"Who said that was all I had?" Brit said as she grunted and ripped a wet shit smelling fart.

*BLLLLLLLLLLLLLLLLLLLLLRRRRRRRT!*

"oOOOHHH!" Tiff closes her nose "Dang girl, that smells horrible hahahaahah!"

"Yeah, and our butt boy has to smell it all~" Brit said as she slapped her caramel ass.

"You got it, girlfriend! Use that noise to sniff all our gas, it stinks here" Tiff slaps her pawg booty.

Brit laughed as she grinds more on his face before farting again.

*BRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRT!*

Sheldon is desperately struggling to get away from them as he became their farting pillow to sit and let loose as much as they wanted.

They giggled. "This is so much fun!" Brit said as she moaned.

"Yeah I always hold on to my farts in school so no one can see me like that, but just unloading on this fool is refreshing" Tiff commented.

They grind their asses on Sheldon as they high fived each other.

Brit and Tiff's stomach both gurgled.

"Ohh, I think I got a huge one." Brit said. "Me too." Tiff added.

The two big booty bullys clench their asses for one more time before unleashing a double devastating combo.

BRRRRRRRRRRRRRRRT!

PRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRT!

FRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRT!

BRRRRRRRRRRRRRRRT!

FRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRT!

FRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRT!

The crust cousins must have planned this in advance because until that point Sheldon never thought a fart could smell so dreadfully awful, their noxious vapors mingled, intensifying their individual repugnance, as a nauseating blend of decaying fish, and a hint of sulfur. Its odor hung in the air like a toxic fog, instantly assaulting anyone unfortunate enough to be within its reach, which for now was just him and them but they would endure as the smell just became worse! Emitting a pungent mixture of rancid cheese, spoiled milk, and a heavy dose of skunk musk. It carried the stench of decayed dairy, filling the atmosphere with a sickeningly sweet yet overwhelmingly sour aroma that seemed to seep into every crevice.

They groaned loudly, enjoying this quite a lot, until the groaning turned into moans.

"Oooh! Shit! This smells awful! But farting on this seat feels so good." Tiff said, fanning herself.

"I had no idea I would enjoy this so much, but I'm glad we came up with this," Brit commented, biting her lower lip.

"Same here, and I'm glad we have a loser to fart from now on." Tiff said.

"But this place is really stinking up now that I think about it" Brit said as she sniffed the air "So rank! This bitch is not smelling all of it"

"Yeah, do a better fart cushion!" Tiff told Sheldon.

Unfortunately, Sheldon didn't answer as he had already passed out by the gas they plunged into his nostrils.

They looked back at him and laughed.

"Well looks like our job here is done" Tiff said before getting up from where she was but letting out a bit more of a fart "Uuugh! Now we should move away before anyone finds this place, we did fart quite loudly"

"Yeah, let's get out of here." Brit said as they pull up their bottoms and start to head out.

"When he wakes up and we see him again, want to do it all over again?" Tiff asks.

"Hell yeah girl, this felt amazing" Brit answers.

"We should invite Jenny next time, I bet she would like to let out some pent up aggression on him hahaha"

It took hours for the smell to dissipate, lingering as a haunting reminder of the collision that had occurred. The memory of that moment would forever be etched in the mind of Sheldon or whoever found him afterwards, like a testament to the unimaginable power of two stink bombs colliding which were the large phat and gassy asses of the crust cousins, creating an awful smell that defied the limits of human tolerance.


How Tiff and Crust look like in this chapter: rule34 xxx/index . php?page=post&s=view&id=6044644