Ben and Molly: The Stink Evolves

By: NFused

The front door slammed shut as Molly entered the house.

“Don’t slam the door!” shouted her mum from upstairs, clearly annoyed with her daughter

“Sorry mum!” called out Molly as she took off her jacket and hung it up on the coat hanger in the hall.

Molly strolled into the sitting room where her brother Ben was sitting on the sofa, watching football on the TV.

‘Hey bro’ said Molly as she collapsed on to the opposite side of the couch. She had just got back from the gym having had a session with her personal trainer. She was wearing a pair of light blue leggings matched with the same colour sports bra. The lycra clothing encased her now rather large butt that looked as though it was bursting through the seams. Her hair was tied back in a pony tail and she had her big rimmed glasses on. Her body had really transformed into a sexy nerd look since she had been going to the gym. At 18 years old she was definitely starting to develop some impressive assets that would definitely get her a few looks in the street. There was only ever one thing Ben cared about and that was what came out of that massive read end of hers.

‘Hey’ replied Ben glancing over to his younger sister who was slumped in the sofa with her legs spread wide apart.

BRRRRRRRRRRPPPPPPPTTTTTTTTTT!!!!!!!

A long and sustained fart rippled out of Molly’s butt as her eyes rolled back in relief. For a good 10 seconds her body dumped out the copious amounts of gas that she had been storing up over her gym session. It was not her loudest fart but still loud enough to drown out the sounds of the game on the TV. The familiar and comforting stench of rotten eggs filled Ben’s nose as it wafted around the room.

“Ahhhh that felt good!’ moaned Molly, delighted to be letting off some pressure in her gut.

“Oh my gosh!’ said an excited Ben who was being subjected to one of his sisters powerful eggy farts.

Molly wrinkled her nose “I’ve been holding that in the whole time I was at the gym, imagine if I let that off in there, I doubt my trainer would ever have a session with me again!”.

“You never know he may like the smell” said Ben smirking

“You have to be pretty gross to like that smell” replied Molly snorting, teasing her big brother.

“Can you get me a protein shake?” asked Molly as she kicked off her shoes so she could curl her knees into her chest and sit more comfortably on the sofa.

“Of course he said as he got up headed off to the kitchen

He handed Molly the protein shale as he sat down next to her.

“You know this is going to make my farts stink right?” she said scrunching her nose “I’m just saying you may not want to sit too close to this thing” she said as she gestured towards her bum which was now on its side and pointed along the sofa towards her brother.

Molly loved teasing Ben like this and was feeling in a good mood after her workout.

“I think I’ll be fine” said Ben smiling back at her

Ben continued to watch the football while Molly scrolled through her phone, taking regular sips of her protein shake.

Mollys stomach was now being fuelled by this gas enhancing drink and she knew it. Her farts after a protein shake were disgusting. She could feel her insides bubbling away and it was only a matter of time before she would need to let loose and transform the living room into a gas chamber.

Ben was anticipating the onslaught but doing his best to play it cool, keeping his gaze fixed upon the tv. He had gone nose blind to the smell of Molly’s first fart and was desperate for a fresh injection of gas.

FFFFRRRRRTTTTTSSSSPPPPBBBPOPOPOSSHHHHH!!!!!!

As if God had heard his thoughts his ears were suddenly bombarded with an explosion of noise that shook the whole sofa. A huge meaty fart ripped out of the nerdy girls bum, coming with it the stench of eggs now mixed in with the powerful gag inducing stink of a sewer on a hot day. The protein shake had supercharged Molly’s gas, producing a smell so strong it made Ben cough as the thick plumes of girly stink washed over him. The smell was absolutely disgusting as Molly fanned her nose.

“Ewwww, Smell it!’ she said giggling as she wafted the stink from her bum over in her brothers direction, scrunching up her face in disgust.

The foul aroma filled Ben’s nose causing him to cough on the sudden influx of noxious gas. However, the smell filled him with immense pleasure and he started leaning towards the source of the smell, Molly’s plump rear end, ready to slot his nose in place.

It was at that point their mother walked in and it did not take long for her look of happiness to be wiped off as her face contorted, her nose wrinkling at the stench of the room she had just entered.  Ben quickly pulled away and pretended to be grossed out, not wanting to be seen to be enjoying the smell

“Oh my…” was all she could manage as she fanned the air around her face.

“Sorry mum, protein shakes always give me really smelly farts” said Molly looking up at her disgusted mother.

“You can say that again! She said gagging on the foul smell of her daughters recent fart, “It stinks in here Molly, take your butt elsewhere if you need to let those off” she replied as she quickly left the room, shutting the door.

“She’s, right, it does really stink in here” said Molly fanning her nose with a big smile across her face. The nerdy teenager stood up and headed to the door. She stopped and looked back at her brother who was still sitting on the sofa, basking In her stink. “You go enjoy yourself” she said giggling as she glanced at the unmistakable bulge in Ben’s lap.

Ben rushed up to his bedroom leaving the tv on, he desperately needing to satisfy his needs. Even now, having smelled so many of Moly’s farts it still turned him on to a level he had never experienced. He burst into his room and dropped his trousers, he was so excited he was shaking. What came next was one of the quickest but oh so amazing feelings as Molly’s farts were so capable of producing.

It was at that point Molly appeared in his doorway, she had changed into a pair of pink tracksuit bottoms and a grey t shirt.

“How was that?’ she asked smirking

“Amazing as always” replied Ben who had luckily managed to slip his trousers back on by this point.

“My protein farts really stink, don’t they” said Molly
“They’re my favourite though, they are just so eggy” replied Ben who sounded like an excitable child

“Haha Mum and Dad wouldn’t agree with you” laughed Molly “Speaking of which, I need your help tonight”

“Whats up?” Replied Ben

Molly shut the door and walked over to Ben, taking a seat at the end of the bed.

“So there is kinda this party tonight, I really want to go but Mum and Dad won’t let me, so I was hoping you could sneak me out the house tonight, drive me there then also pick me up and get me back inside without them finding out?” Asked Molly

“Oh so not a lot then” said Ben sarcastically.

“Or I can tell mum that you love smelling my farts”

“Right so how are we going to do this?” replied Ben

“That’s your job bro, you always used to sneak out when you were younger and I was always such a good girl and didn’t tell mum.”

“Alright I’ll let you know when I have a plan” said Ben

“Yay thanks Ben!” Said Molly excitedly

Ben spent the rest of the day thinking of a way to get Molly to her first party. It was going to be difficult but this was something he was an expert in.


Molly spent the next few hours chilling in her room while Ben formulated a plan for this evening. She had run out of pills from that Doctor Tiffany who claimed they would reduce her gas although this didn’t really bother her. She was used to being exceptionally gassy by this point and to be perfectly honest she kind go enjoyed having such smelly farts. It made her like a skunk, anyone she didn’t get on with she could just drive away with one potent release from her ass. Of course her brother who was completely hooked on her rancid smell was a real asset as he was now willing to do anything that she asked even if he was a little weird for liking her gas so much. Occasionally she would let him ‘treat himself’ after smelling one of her farts. She had to keep him under control otherwise he would be constantly rushing to the bedroom. Molly found it funny that someone could actually like the smell considering her parents gagged on the faintest whiff of her and her friends were often found having to peg their noses when spending a long Time with her but she liked it. It made her powerful. It made her strong and it made her more dominant than anyone else.

“Right I have a plan” said Ben as he barged into his sisters room to see Molly laying on her bed frantically fanning her butt with the magazine that we saw reading.

“Oh hey, sorry just let off an absolute stinker in here!” She said half laughing and half disgusted at just how smelly it was. “I think I need to go take a dump soon, especially after that massive protein shake earlier” said Ben’s nerdy sister.

Ben took a whiff and sighed as he took a few seconds to enjoy Molly’s stink.

“You were saying?” Said Molly, snapping her brother out of his trance

“Ah yes, I have a plan on how we are going to get you to your party” he replied proudly as he proceeded to explain his idea. “So later this evening you need to fake feelings unwell and then you can go to bed “ill”. I’m sure if you tell them your farts are extra smelly this evening then they won’t come in and check on you. Then later i’ll tell mum and dad that I am just going out for a bit. Now they will probably be watching tv which means you can sneak out the back and then come and meet me in my car. I can drive you to the party then just call me when you need a lift and I will sneak you back into the house.”

“That sounds like it could work” smiled a mischievous sounding Molly.

***

The time had come. Molly had warned her parents of her extra stinky farts the evening and that sh did not feel too well. The perk of having such constant gross farts meant she could always count on it to get her out of most situations. Once she was in her room she began getting ready for the party. Meanwhile Ben was waiting in his car outside the house, hoping that Molly would be able to get out without being seen. Just then he noticed her appear in the rear view mirror of his car. He must say the she did look beautiful. She was wearing a chequered crop top with a matching mini skirt. Her brown hair was long and flowing in waves down to her stomach and her iconic black rimmed glasses perched on her nose showed off her nerdy look.


“I made it” she exclaimed as she opened up the passenger door and plonked her butt down on the seat. “Mum and dad definitely won’t check on me because I said I had even worse farts than usual tonight” she said giggling, “speaking of which…”

BRRRTTPPPP!!!!

A nice 3 second ripped or a fart shot out Molly’s bum straight into the car seat. It made a deep rumbling sound against the fabric and it was not long before the eggy stink of the nerdy girls gas had wafted up to greet both of their noses.

“Oh man, that stinks!” Said Ben as he wafted the air around his face. He of course liked the smell but sometimes it was nice to drive without the stench of his sisters gas filling his nose and blurring his vision.

“Smell it” she commanded. Her relatively small fart was incredibly potent and had already stunk the car up. “You know you love it really” laughed Molly, suddenly feeling in quite a dominant mood.

She watched with glee as her brother took a deep whiff of the toxic air while she pinched her nose in disgust at her own stink.  It was certainly a very eggy fart that could easily clear a room out.  It was well known to both of them just how much he was in love with the smell of Molly’s farts which made it especially impressive when one of her toots caused him to be a little grossed out.

“That was a lot worse than I though it was gonna be!” Laughed Molly.

They pulled up at Sarah’s house about 10 minutes later. They were picking her up before heading to the party together. Sarah got in the back of the car and shut the door. She took a couple tentative sniffs of the air before her nose wrinkled in disgust.

‘Ewwww guys it stinks in here’ she said fanning her nose

“Yeah sorry, I let out this super eggy fart on the way here” replied Molly as she gleamed at her friend.

“Well can we open a window or something, I can. Hardly breathe” said a rather disgusted Sarah. She was used to Molly’s farts but being trapped in a car with the gassy teen was too much.

Ben pressed the button to wind down the windows much to Sarahs delight as the rotten stink of her friends farts wafted out of the small car.

“You better try and hold you gas in at this party, you’ll stink the whole place out otherwise” said Sarah
“Ill try” said Molly smirking as she felt another fart brewing inside her gut.

It was a largely uneventful journey to the party with the two girls chatting and Molly managing to keep her farts in. It was a skill she had learned to master over the years mainly for her own benefit. She couldn’t afford to be stinking out everywhere she went and that usually meant that at home she had a build up of the days gas to release. Unfortunately for Sarah, Molly had no problem letting one off in her presence. She leaned to the side, her plump rear angled towards her brother

“FPPSSHHHHHHHHH”

A 5 second silent but extremely deadly fart quietly hissed its way out of her butt. It was safe to say this was a very stinky fart, consisting of pure rotten eggs mixed with the stench of a skunk.

Molly giggled to herself as she caught a whiff.

“Molly, did you just fa-“ started Sarah before her face was once again transformed into a look of absolute disgust. The smell entering her nose, was something else. She didn’t think that she had ever been exposed to anything quite this smelly before. Her body told her to pinch her nose but she was so shocked by the smell her friend had produced that she couldn’t react. She started to gag on the stink as Molly burst out laughing.

It was at that moment they pulled up at the house and Sarah seized her moment to fling the door open and burst out on to the pavement, sucking in large gulps of air.

“Sorry about that bro, hope you don’t mind the smell” giggled Molly who casually got out the car. Leaving Ben to enjoy her smell in the car.

Once Sarah had stopped gagging the two girls walked up to the front door of the house.

“Please don’ trap me in your gas chamber again” moaned Sarah as the rang the doorbell

“Sometimes I forget my farts are that bad” joked Molly as Sarah scowled at her.

Molly was so excited she was finally into her first party and she was going to make the most of it. One of her friends friends was hosting and it seemed to be a pretty big party. It was an average sized 4 bedroom house and there must have been about 60 or 70 people there, spread out around the ground floor. There were a few people that she recognised from school and a lot that she didn’t. The music was pretty loud and over the constant hum of chatter it was hard to hear.

“I said over here” said Sarah as she grabbed Molly’s arm and dragged her over to their friend group.

Jess was there with a couple of other girls, Emma and Celine. Emma was a a slim brunette girl who wore glasses like Molly and was pretty quiet, she was probably even more nerdy than Molly so to see her at a party was a surprise. Celine was a lot more outgoing and confident. She was mixed race and French with a pretty strong accent. She also had a large rear end on her, not as large as Molly but definitely noticeable.

Molly was handed a beer by one of her friends as they stood around chatting. They needed a few more drinks in them before they could think about chatting to anyone else or let alone get on the dance floor. As the beer went into Molly’s system it started to bubble up inside her and
begin forming an incredible amount of flatulance.

It didn’t take long before the girls felt confident enough to start dancing and were soon partying in the middle of the party. They were all able to really let their hair down and just have fun and Molly was loving it. Her large ass was bouncing around, barely being contained by her short skirt while her stomach continued to form gas from all the beer she was drinking.

“Ah man I gotta fart” Molly thought to herself as the familiar sensation of gas knocking on her back door rushed through her. She was a bit tipsy from all the alcohol she had been drinking and combined with the loud music she figured it would probably drown out the sound.

BBBBBRRRRSSTTTTPPPSSHHH!!!!!!!

A monstrous rich bubbly fart exploded out of the nerdy girls rear end. The loud music and chatter at the party was able to drown out the sound but it could do no such thing for the smell. To say this fart was smelly was an understatement. Molly had let off an absolute stinker of a fart that carried the stench of eggs and sewers with it. The stink cloud of her gas quickly greeted the noses of her friends on the dance floor, and she giggled as she watched them fan their faces to try and combat the smell. It did not take long for people to start sniffing the air and complaining about the appalling odour.

‘Eww that stinks!”, “Jeez what is that smell!” Were the cries from within the room. Even Molly fanned her nose to try and find some sort of fresh air. Of course her friends new that she had let rip and scowled at her for clearing out the dance floor.

“What!” She replied looking at them as they were now the only ones left in the back room of this house.

The girls made their way outside along with most of the other people at the party trying to escape the smell. Luckily Molly had only managed to stink out the back room of the house and there were still plenty of other people in the front section as the party continued on.

‘Sorry guys I had to let that go, it was killing me” said Molly

“You nearly killed all of us!” Replied Celine in a kind of joking way.

“Molly you farts really stink tonight, what did you eat?’ Asked Sarah

“I think it’s the beer, it's making me so gassy” replied Molly with a smirk on her face.

‘That was pretty impressive though” said Celine, “did you see the look on peoples faces as they caught a whiff?, It was hilarious”  

It took about 20 minutes before people were back inside and dancing again, the smell had mostly cleared after the host was forced to open up all the windows to try and air it out.  

The girls were still hanging outside and noticed that there was some drinking games going on. They made their way over to where there was a beer pong table set up and people crowded around. Two teams of five were formed with Molly and Celine on one joined with another girl and two guys against Sarah who was also with two other girls and a couple of guys.

It was not long before Molly already had another beer down her and was starting to feel a lot more relaxed. She held her stomach as she felt it gurgle, signalling she needed to fart.

BBRRSSTTT!!!

It was only a 4 second long fart but it was such a relief for Molly to let out. It was drowned out by the party but the smell quickly worked its way up to her teams noses. It was Molly’s familiar eggy sewer like stink. The kind of smell that was hard to go unnoticed.

“Ewwww what is that smell?” Complained Molly as she wrinkled up her nose and fanned the Ari around her. She was being as dramatic as possible to tease her friends who of course knew that Molly had farted but also to blend in with the others.

The stink was quick to be recognised by the others as the girls on each team were forced to pinch their noses on disgust at such a rank smell. The guys were keen to try and shrug it off, not wanting to be affected by something like this, but after a few more whiffs of Molly’s awful smelling gas they too started to gag on the stench.

“PU it stinks!” Moaned the girl on Molly’s team who also happened to be standing closest to the source.

Molly laughed “Thats disgusting, who ever let that go” she said as she continued to fan her nose. The stink was starting to dissipate as it was carried off by the wind but Molly’s stomach was just getting started.

BBRRRT

FFRRSHH

HSSSSSSSS!!!!

Two short farts escaped her rear end followed up by a nasty SBD. The rotten stench quickly circulated around the group again as their noses were assaulted by the nerdy girls vile farts.

“I’m sorry guys, I cannot stop farting” laughed Molly who was now starting to enjoy the group suffering in her stink

“Smell it” she giggled wafting the fumes from her ass over towards everyone.

“You are so gross!” Complained some as they vacated the area. The stench now too strong for them to stand.

The rest of the group quickly disbanded leaving just Molly standing proudly in her gas cloud.

Taking one more swig of her beer she let out a loud belch as the gas was rejected by her body.

It was then that Molly suddenly grabbed her bum.

“Uh-oh”

Running back into the house, the thick nerd barged her way through the dance floor as she looked for a bathroom. Molly headed upstairs letting out small puffs of air as she went, each smellier than the average persons biggest fart. She made it to the upstairs landing where there were two girls waiting.

She rushed past them as she saw the bathroom door open

“Excuse me, we were waiting” said the first girl angrily.

“Sorry” said Molly as she shut the door flicked the lock closed.

What came next was the aftermath of Molly’s alcohol consumption combined with her typically stinky farts. It was explosive as her ass had barely touched the toilet seat before she began unloading. A mixture of solid and liquid poop quickly filled the bowl as it created a super heated, steaming mess that absolutely stunk. Molly started to cough on the smell as it filled her nose and throat but it felt so good to let out. Her eyes rolled back in relief as she let out her biggest, most relieving and stinkiest fart of the night.

BBBBBBBAAAAARRRRRPPPPPPPPPSSSSTTTTTFFSSHHPPOPOPOPPSSSHHHH!!!!!!!

A huge 15 second monster fart roared out her butt. She was sure that everybody in the entire house could have heard it. It was the type of fart that Ben loved to experience and usually she reserved her absolute stink bombs for her brother but this time she just couldn’t hold it any longer. The smell started to waft our from under the door and began to fill up the corridor that the poor girls outside were patiently waiting in. Molly could hear their coughing and gagging as her toxic stench filled their lungs. This fart went beyond smelly it was a health hazard. The noses on the two girls outside were not prepared for such a stink. Their brains were unable to process the sheer magnitude of the stench that was surrounding them. They were almost paralysed by the smell.

Molly quickly wiped her bum mostly clean and tossed the toilet paper on to her pile of shit. There was no way this was flushing and she figured that she would probably have to send Ben here tomorrow to clean up this poor girls house.

She opened the door and with it rushed out Molly’s glorious stench. The two girls who had been gagging in the corridor were hit with the wave of vile stink from the geeky girls monstrous dump and fart. Their eyes rolled back as they fainted and collapsed onto the floor. The smell was quickly making its way around the house and Molly looked on at the scene as she stood on the steps.

People were desperately trying to get outside as they did whatever they could to escape the smell. Molly knew this was a bad one even by her standards but she just couldn’t hold it any longer. She called Ben.

“Hey can you come pick me up.”

“Yeah sure”

“Be quick I completely stunk out the house and I still need to finish this dump, you’re going to be busy tonight” she told Ben as she hung up the phone.

Most of the house had cleared out by now. It was as if a family had skunks had just let off all their spray inside. That was the easiest comparison to what Molly had just done.

She found her friends outside the front of the house along with most of party.

“Sorry girls I had a little gas” she said with a giggle

“A little?” Replied Sarah who could also see the funny side

“You cleared out an entire house with you farts” laughed Celine. “They stunk but that Is too funny”

“It was pretty impressive I guess” said Sarah who was still lightly fanning her nose.

At that point Ben pulled up outside the house.

“Ok guys I gotta go, I got major gas I need to let off, anyone need a lift?”

The girls grimaced at the thought of getting in a car with their stinky friend. ‘We’re alright thanks” replied Sarah

Molly rushed off towards the car where her brother was waiting. She flung open the door and as soon as her bum was in the car she let her butt muscles relax.

BBBRRSSSTTPPSSHHF!!!!!!!!

A sloppy deep bubbly fart billowed out of Molly’s bum and quickly filled the car with her house clearing stink.

She sat her butt down and closed the door

‘Ugh man that stinks!” She said laughing and fanning her nose.

This latest fart from the bowels of the nerdy teen was on par with the stink bomb she had released to clear out the party, the smell had caused people to faint, gag and choke as they struggled to rid their lungs of the eggy stench. However, Ben was in pure heaven as he took the biggest whiff he could.

“Molly that stinks so good!” He moaned as he took another giant sniff.

“Good because I have plenty more where that came from but you need to get me home now. I need to take a dump” she commanded as Ben slammed the car into first gear and set off home. He was craving more of his sisters gas. Sure, he had smelled plenty of her farts before but this took it to a new level. The idea that this smell he loved so much had caused people to faint and gag only made it all the more desirable for him.

The drive home was a blur for Ben. Molly had already totally stunk out the car with her wet mess of a fart. The smell would likely have stained his seats for a long long time. They pulled up at the house and quietly exited the vehicle not wanting to wake their parents.

Sneaking up the stairs, they made it to Molly’s room where she took no time at all in collapsing on to the bed. She was lying with her bum hanging off the side of the bed. Ben was about to wish her goodnight and go back to his room when Molly spoke.

“Get under my butt” commanded his sister.

Ben obliged as he played down on the floor looking up at Molly’s giant rear end. She managed to lift up her skirt as she prepared to empty her bowels.

“Sorry Ben, there was not enough time to get to the bathroom so I need you to deal with this” she said with a giggle

Ben watched as he could start to see shit emerging from Mollys butt. It snaked its way out, easily reaching 40 centimetres in length, before it detached from her butt and plopped on to her brothers face. A huge steaming pile of Molly’s toxic poop now laid upon Ben’s face. The smell was incredible. It was so rich, so powerful and he loved it. Ben couldn’t believe that his sister had taken a dump on his face but he was more than happy to accept it. He had never really been into scat but he felt so used by his younger and more dominant sister.

“Ok you go clean that up, you stink!’ Said Molly as she waved her hand, shooing Ben away. He walked out the room, his sisters poop in his hands and his face stinking like a sewer.

Molly’s farts kept Ben up for most of the night. He lay in his bed listening to the sound of his sister letting out her gas every few minutes. He could only imagine the smell in there, but he accepted he couldn’t sniff her farts all the time even though he wished he could. He toyed with the idea of Molly using him as her toilet instead as she clogged it up every time anyway. He could at least suggest to his commanding gassy sister.