Tiffany and Abby are roommates, as well as best friends. It’s been that way ever since high school, when Abby defended Tiffany against a group of bullies. Given their significant difference in terms of size, it’s quite easy to see how something like this would occur. Tiffany was always a rather small girl, usually the smallest in her class, while Abby on the other hand was a much larger and heavier girl who dwarfed pretty much everyone around her, especially Tiffany.

As Tiffany and Abby grew closer, they eventually learned that they shared a common interest in practical jokes. This common interest had led to the two girls to regularly pull pranks on each other, usually laughing about it later.

Today, Tiffany had the bright idea to fake a robbery in her apartment. The plan was simple, while Abby’s sleeping, Tiffany would “break in” donning a black coat and a ski mask, and as she pretends to rob the place, she’d “accidentally” wake up Abby and give her a shock, then quickly take off her mask before things get out of hand.

That night, as Abby went to bed, Tiffany was in her room putting her costume on. Then, leaving her room, she began knocking over various non-fragile objects as if she was the world’s clumsiest burglar. Unfortunately, Abby was a pretty heavy sleeper, so messing around in the living room wasn’t very effective. Instead, she’d have to get closer.

Generally speaking, Tiffany preferred to stay out of Abby’s room. Abby’s not really the most tidy roommate, so her bedroom was a mess that smelt almost as bad as the bathroom does an hour after Abby was done in there. Of course, in order to pull off this prank, Tiffany would have to resort to desperate measures. Besides, she figured that the mask would filter out the smell anyways, even if she’d be proven wrong the moment she opened the door.

Tiffany once again began making as much noise as she could, hoping to wake up her roommate, which took a while but eventually she managed to do so.

“Huh? Who’s there!?” Abby said as she reached towards the lamp by the side of her bed and turned on the lights. The moment she saw the masked girl, she let out a loud scream. Not wanting another complaint from her neighbours, Tiffany instinctively tried to shush her. This only left her vulnerable, allowing Abby to grab her, ready to defend herself from the intruder and dropping her onto her bed.

“Listen thief, you chose the wrong apartment to rob!” Abby said before Tiffany could explain herself.

“Wait please I can ex-” the small girl tried to explain the situation, but was quickly interrupted by her larger roommate, who aggressively sat her plump rear onto her face, engulfing her head within the sweatpants she’s been wearing for the last two weeks.

“How do you like my booty?” Abby asked as she grinded herself onto her misunderstood roommate’s face, with poor Tiffany squirming and struggling under her large body, which was quickly noticed by Abby, “Heh, that’s what I thought.”

For the next couple of minutes, Abby continued grinding and bouncing her ass on Tiffany’s face, and the smell of two week’s worth of sweat and a couple hundred farts long passed swept through her mask. Eventually all this movement ended up upsetting Abby’s stomach, and poor Tiffany was in the worst spot to deal with that.

“Oh, you’re in trouble now!” Abby taunted as her stomach gurgled, ready to amp up the punishment she was giving to this tiny “thief”.

PPPPPPPPPPPPPPPPPPPPPRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBPPPPPPPPPPPPPPPPPTTTTTTTTTT!!

Without a second though, Abby let out an explosion of gas directly onto Tiffany’s face. Abby’s farted in Tiff’s face quite a few times before, but the small girl never quite managed to get used to the smell, and while the ski mask certainly helped block out a bit of the smell, it wasn’t nearly as effective as she would have liked.

“Heh, don’t like that, do ya?” Abby mocked as she continued her grinding and bouncing, “Well that’s too bad, cause I’ve got way more where that came from!”

PPPPPPPPPPPPPPPPPRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBBBBBBBBBBBBBBBBBBBBTTTTTTTTTTTTTT!!

BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRMMMMMMMMMMMMMMMMMMMMMMMMBBBBBBBBBBBBBBBBBBPPPPPPPPPPPPPPPPPPPPPPPTTTTTTTTTTTTTTTTTTTT!!

FFFFFFFFFFFFFFFFFFFFFFFFFFFRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLMMMMMMMM
MMMMMMMMMMBBBBBBBBBBBBBBBBBBBBBBPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPTTTTTTTTTTTTTTT!!

Poor Tiffany took fart after fart to her face, all due to a simple misunderstanding. To make matters worse, the combination of Abby’s grinding and Tiff’s struggling was causing the cheap ski mask to begin tearing, forming a makeshift nose hole that allowed Tiffany’s nostrils to become exposed to the full force of Abby’s stink, only increasing her panicking.

“You know, you should just be thankful that I didn’t catch you breaking into Tiff’s room or anything. If you even tried to hurt that girl, you’d be in for a far worse hell.” Abby explained, completely oblivious to the irony of her statement. “Though come to think about it, I should probably treat you with the full punishment anyways. I mean, what’s the point of holding back against a pathetic thief like you?”

Eager to further amp up the robber’s suffering, Abby lifted herself off of her face and pulled down her sweatpants, revealing her dirty bare ass to the terrified Tiffany. Before Tiff could even get in a word, Abby plopped her heavy self back onto her face, enveloping her head deep between her massive asscheeks, with the freshly torn nose hole allowing the horrible stench of her ass to assault her nostrils.

“Oh, did I rip a hole in that mask of yours?” Abby asked as she felt the thief’s bare nose press into her anus, “You poor thing, it must stink really bad down there too. Don’t worry though, it’s only gonna get worse from here, hehehe.”

PPPPPPPPPPPPPPRRRRRRRRRRRRRRRRRRRRRRMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMBBB
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT!!

BBBBBBBBBBBBBBRRRRRRRRRRRRRRRRRRRRROOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFTTTTTTTTTTTTTTTTTT!!

FFFFFFFFFFFFFFFFFFFFFFLLLLLLLLLLLLLLLLLLLLLLLLLLLLAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAARRRRRRRRRRRRRRRRRRRRRRRRRRRRPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPBBBBBBBBBBBBBBBBBBBBBTTTTTTTTTTTTTTTTTTTTTTT!!

Abby resumed her sadistic punishment, with poor Tiffany now taking every fart at point blank range, with each blast burning her nose, going through some of the worst suffering she had ever been forced to endure. The large girl was enjoying herself a little too much at this point, unknowingly at the complete expense of her tiny roommate.

PPPPPPPPPPPPPPPPPRRRRRRRRRRRRRRRRRRRRRRRRRRRRRMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMBBBBBBBBBBBBBBBBBBBBBBBBPPPPPPPPPPPPPPPPPPPPPPPPPPPPPTTTTTTTTTTTTTTT!!

FFFFFFFFFFFFFFFFFFLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRMMMMMMMMMMMMMMMMMMMMMMMMMMMBBBBBBBBBBBBBBBBBBBBBBBBBPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPTTTTTT!!

BBBBBBBBBBBBBBBLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRMMMMMMMMMMMMMMMMMMBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!

“Heh, and now to finish this.” Abby said after over an hour of farting and grinding on Tiffany’s face. She got off of her face for a moment, finally allowing the small girl to breathe something other than pure ass. As Tiffany gasped for air, Abby climbed onto her bed, standing up above the terrified girl’s face.

“Enjoy this, thief!” Abby said as she slapped her jiggly ass, following this by a hop that allowed her to slam herself ass first onto Tiffany’s face, following this maneuver with a large, powerful fart.

PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFFFFFFFFF
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPTTTTTTTTTTTTTTTTTTTTT!!!

And with that, Tiffany’s struggles came to an end. The pain was too unbearable for poor Tiff to handle, knocking her out entirely. Noticing this, Abby got herself off of the small robber, eager to pull off her mask and see the face of her victim.

“Now, let’s see who’s behind this mask.” Abby said as she pulled the mask off of the unconscious girl, revealing a cute face she was all too familiar with, “Tiff?”

“Ohhh, I see! This was one of your jokes!” she realized, laughing to herself over this big and silly misunderstanding. Suddenly she came to the awkward realization that she put her best friend through a couple hours under her ass.

“Uh, sorry about farting on you and stuff, hehe.” the girl apologized, a bit embarrassed over subjecting her to all that torture, “Hey, how about this, I’ll carry you to bed, that way we’re even, or something like that.”

Abby did just that, carrying the unconscious Tiffany to her bed. The next morning, Abby teased Tiffany over the whole situation, but for some reason, Tiffany didn’t seem all that interested in talking about it.