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Bbw anal at dentistMandy, as it turns out, used to weigh a lot more before her experience with gwen and her naughty boy. It was maybe 4 years beforehand, and she was still in dental training and only an assistant at the time. Mandy saw working with a younger dentist, maybe in his thirties with tall muscular features. Mandy thought that weighing over 400lbs, she would never be able to get a guy as nice as doctor Steven's, but she sure wanted him. One time in the bathroom and she could swear dr Steven's had poked his head in. She turned to look, but no one was there. Mandy had particularly large and gross smelling shits and It would have been weird to have a man sneaking a peek while a fat woman is shitting her brains out, so she discredited the whole encounter. Then there was another time they had a person sedated using nitrous and mandy had bent over to grab a tool she had dropped, and swore dr. Steven's had leaned over and smelled her butt. Again. Mandy was not sure why such a striking man would even do something so weird and gross as that, so again, mandy discredited the whole thing. Although, she was sure she heard sniffing. Either way, she really wanted this hot older doctor. She had barely turned 18 and hadn't had sex with many guys. A few had gone out with her. She was always very nervous and self conscious of her weight, so she had issues making a move. A couple guys went down on her and one gagged and left, so mandy didn't have a lot of confidence. She had lost her virginity, but it was only a minute and the guy lost his erection inside of her and lost interest. Poor mandy. She knew how large her ass was didn't help. She had such large ass cheeks that when she took a shit, she couldn't reach to her butthole. There was always a ring of runny poop and sweat on her anus. The sweat that pooled in her ass crack could always be smelled no matter how much mandy tried to cover it up. She thought it smelled kind of sweet, but every other guy she saw gave her a gross disgusted look when they walked by and got a whiff. It was the end of the night and dr. Steven's was alone with mandy and asked her to help with the nitrous tank in the closet. Mandy really had to take a shit. Like a brewing all day,coffee infused runny gigantic shit. Mandy really needed to go, but came in and the to help the dentist try to get a regulator off. It popped off and hit mandy in the center of the forehead and she was instantly out cold.Mandy was dreaming that someone was holding her up by the arms and ankles and letting her fly free. It was the most exhilarating feeling. She heard her dad say "ok mandy! Time to get up! You're gonna be late for school!" Mandy mumbles sleepily "five more minutes daddy." Mandy slowly opened her eyes and realized in absolute horror what was happening. The hands holding her up were a sex swing that was holding her by the wrists and ankles. The swing had a place to put her ass, but Mandy's butt was so big that it fit her lower back and pushed her ass cheeks and butthole in front of the seat. Her butt was spread wide, full exposing her ripe, sweaty, ridiculously huge fat girl butthole. Mandy could smell all the stink and poop sweat. To top it off, about a foot below her was dr. Steven's. He had a giant erection. About 13 or 14 inches long and 2 inches wide. It was glistening and slick from immense amounts of lube he had applied. This gargantuan boner was a half inch under Mandy's sweaty poorly wiped shitty anus. dr. Steven's was teasing her anus with his dickhead and getting bits of poopy sweat slime on it. Mandy exclaimed "WHAT IN THE FLYING FUCK!!??!" dr. Steven's replies "I wanted to try to bring this up before, but I thought it would be better to surprise you" mandy angrily replies "SUPRISE ME??!! why do you think I want to have you dick go up my"-mandy says with a lot of disgust "butthole!" Mandy did really want dr Steven's. A LOT. This was different though. Mandy really REALLY needed to shit her brains out now, but a bulbous penis was poking her poop back in and making it difficult. Dr Steven's had a hand control for the dental chair in his left hand. He aimed the tip of his dick right in Mandy's sphincter and started slowly bringing the base of the chair up. The chair had a really slow base and it took about 5 minutes to get to full extension. Dr Steven's mammoth lube covered dick slowly penetrated Mandy's tight stinky anal ring. The head went in with a quiet "pop!" "AAHah!! THATS SO GROSS!! GET YOU DICK OUT OF MY BUTT!!!" Mandy started wiggling back and forth in frustration to try and force the dick out, but to no avail. Mandy pleads "please take it out!? Please?! I really need to shit! If you dont stop, I'm going to cover your dick in shit!!" Dr Steven's ignored Mandy's cries for help and the chair base inched up, millimeter by millimeter, into her sweaty glistening butt ring. There was a loud, terrible smelling deep fart that emanated from her butthole followed by a small light trickle of dark brown runny poop that went from his dickhead and ran down his thigh and onto the chair. mandy couldn't lift her butt up and her weight made it so she was forcing dr Stevens dick up her butt that much easier. Mandy was in complete agony. She had to shit like crazy, but the gargantuan size of dr. Steven's dick made that almost impossible. His dick was about halfway up mandy's butt at this point. Mandy's wiggling was actually pushing dr Steven's dick up into her butt that much easier because of how much sweat and poop slime was on Mandy's butt and the lube on the dentist's dick. Mandy could not stand how this felt. She had had many large bowel movements, so it wasn't the size of dr Steven's canlı bahis şirketleri dick, but rather how uncomfortable she was from badly needing a bowel movement. Dr Steven's dick inched more and more, pushed by the strong motor of the dental chair control. Mandy just wanted this to be over. Mandy cries "this is so fucked up! I wanted you dr. Steven's, but not like this! My butt is so sweaty and smelly! I cant believe you like doing this to me!" Actually no guy had ever wanted anything close to this with mandy. She realized she was finally having sex. And it was with a guy she really really wanted to fuck and never thought she could for fear of her weight and stink. But it was not at all what her fantasy was like. Far different in fact. Mandy had touched her butthole and felt around with it, but after she pulled her finger back and for a whiff, she never had the urge to try again. Now there was a man with an incredibly large erection slowly filling up her stink hole. Mandy didn't know whether to enjoy or hate the experience.his dick was going up her butt so, so slowly. An unstoppable force gliding against each poop coated crevice of Mandy's filthy rectum. Finally dr. Steven's dick was almost to the base and mandy felt like a baseball bat was shoved up her poop filled colon. There was stink filling the room and Mandy's filled butthole was wiggling all over the base of dr. Steven's dick and causing all kinds of loud deep fart noises. Dr. Steven's could tell mandy really did truly need to shit bad, but his great, bulbous penis was making that rather impossible. The chair came to a sudden halt with about an inch left. Dr Steven's quickly pushed of all of his dick he could up Mandy's smelly butt. Mandy cried in agony as dr . Steven's humped deeply into her poopy filled stink hole. Dr Steven's was only working with an inch, but that was all he needed. Her butt made this sloshing sound and little fart noise every time dr Steven's went fully inside her. His dick was in pure ecstasy. Combined with the stinky sweaty smells and the tightness oh her unfucked butthole, he couldn't handle it. There was also this incredible heat in her butthole. Dr. Steven's thought it was most likely the incredible amount of built up liquid shit inside of this 400lb womans butthole. He had to slow down or he was going to come too quick. He started lowering the chair base at a very slow speed. Mandy made this agonized groaning sound and pouted a little "please!? If you pull out now I'm gonna shit everywhere! Its gonna smell awful!!" Mandy actually rather wanted to shit really badly, just not with a dick up her butt. Dr. Steven's asks coyly "what if I want you to shit everywhere?" Mandy is truly horrified by this question. She is mortified by the thought of shitting her brains out while some really hot guy with a gigantic dick is fucking her up her slimy 400lb butthole.his dick inches out and dr. Steven's can see it is covered in a sweaty poop film. He waited until his dick was about 6 or 7 inches out, and then started fucking her butt ever so lightly. Mandy emitted little groans of discomfort everytime he pounded up her butt and little farts would come out every time as well. Dr. Steven's still had to fuck her sweaty butt very slowly because it was so tight and so full. The amount of poop/sweat stink in the air couldn't be ignored. Mandy's butt was slowly starting to open up on top of dr Steven's now butt slime covered dick. Dr. stevens was now going a little faster and he lowered the chair another 3 inched to get a deeper stroke up Mandy's butt. Mandy was really unused to anything like this. The last guy that even tried to fuck mandy got limp, but this huge cocked stud was hard as a rock. And much less he wanted to put this rock hard cock up something as dirty and disgusting as where mandy pooped from. She couldn't understand it. Mandy was often grossed out by the smell of her butt, and she knew other men had been too. Dr. Steven's was a different case though. He was not only not at all grossed out by her butt, but wanted to do something as wrong as waiting for her to need to take a shit and put his rock hard cock up there. Mandy thought getting her sweaty butt fucked was gross, but it was starting to become a turn on. That a guy she thought was hot wanted to stick his gargantuan cock up somewhere so taboo, so forbidden, so sweaty and smelly and full of poop. Dr. Steven's kept pounding away and a layer of brown was starting to accumulate on his navel area and little sprays of brown were flying off every time he pounded up her stinky poopy butthole. Whenever dr. Steven's went inside, mandy would let out smell quiet coos of mild pleasure. Dr Steven's heard this and said "you naughty girl. Are you starting to like this?" Mandy did not want to believe she was starting to enjoy literally getting the shit fucked out of her, but it was getting difficult to deny. The smells combined with the heat of the inside of Mandy's shit covered rectum was about to get dr Steven's off if he wasn't too careful. He lowered the chair all the way down till just his bulbous brown di knead has all that was up her sweaty poop ring. Mandy begged "PLEASE FOR THE LOVE OF GOD, DO NOT TAKE YOUR DICK OUT OF MY BUTT!!! IM GONNA SHIT MY BRAINS OUT IF YOU DO!!" Dr. Steven's knew this and started slowly putting his dick all the way back up mandy dirty fart smelling stink hole. Mandy was in agony, but was glad dr Steven's wasn't taking his dick completely out. Her hameed was delirious and spinning with how bad she needed to shit. Dr. Steven's just kept very slowly pulling his dick in and out, in and out, coaxing all the torrents of poop right canlı kaçak iddaa to her anal opening. So so slowly. Dr Steven's was trying to enjoy every last smell and feeling he could of having his boner up Mandy's butthole. Tempo was key. Mandy was really liking how slow the pace now was. It didn't hurt as much, but rather, the strain of not being able to shit was becoming this good sort of hurt. In and out, in and out his mammoth 13 inch dick penetrated her smelly buttpipe. Mandy let out a "aahh!" Of pleasure. Dr. Steven's immediately picked up on this and said "I knew this was starting to turn you on. My what a bad girl you are. Wanting to take my dick in your massive smelly shitter. Whenever you smell your own shit, you are going to think about me slowly fucking the poop out of your butt." Mandy could only think to reply "FUCK YOU!" dr. Steven's knew this meant he was right and mandy was indeed starting to enjoy herself. This really got dr Steven's off and he had to slow down even more, to Mandy's great dismay. He would put it out very slowly to just the tip of the tip, and then slam his dick back in as quickly and hard as possible. mandy asked somewhat disgusted "so do you like fucking the shit out of big girls like me?" Dr Steven's could only reply "unhh-huhh" mandy got a little more sensual in tone "do you like getting big girls in your dentist chair and smelling and fucking and tasting their dirty butthole while they need to shit?" This kind of talk was getting dr Steven's very close to cumming. He pulled all the way out just up to the head, and then started using the slow dental chair control again. Slowly the chair raised back into her 400lb butthole. Flows of shit started descending dr Steven's massive erection. coming slowly down like a smooth brown waterfall. Mandy was starting to feel a bit of relief and pleasure from her slight bowel release. Mandy mumbled "nnuh mmy butt" with a small smirk creeping across har fat face. Mandy cood "nnuuh yes fuck me! fuck my butt!" Dr Steven's started playing into Mandy's dirty talk "you like it when I get my dick stinky?" As shit continued to cascade slowly down his dick as the chair ever so slowly climbed into her smelly huge stink pipe. Mandy wass really getting into this feeling. This really hot guy is really into fucking her butt. He is happier than a pig in shit. Almost literally. Mandy decided to play with her dirty talk and asked in a really innocent tone "do you like how stinky your penis is getting?? How much its gonna stink weeks after tonight? You are a little fucking pervert. Do you know that?" Dr Steven's dick was about halfway up and he couldn't take it anymore. He started lowering the chair back down a little, and just went to town on her smelly shitter. Mandy started crying in ecstacy "YES!! FUCK ME!! FUCK MY STINKY BUTTHOLE!! FUCKING POUND IT!! MAKE THAT DICK FUCKING SMELL LIKE MY SHIT!!!" shit was flowing off the sides of the chair onto the floor and making pools of runny brown mess. Shit was fucking everywhere. Mandy couldn't have been happier. She had never had a more satisfying bowel movement in her entire life. The relief and the smell and the sexuality of this hot man pounding into Mandy's shitting butthole made her unable to deny her growing orgasms. She started bucking wildly and rolling her eyes oddly into her head like she was a woman possessed by a demon. She was not only having one of the most intense and satisfying bowel movements of her life, but also one of the most unbelievable and satisfying orgasms of her life. This was too much for dr Steven's and he could not resist shooting his massive load deep into mandy stinky poop coated bowels. The feeling of dr Steven's shooting his hot creamy cum up Mandy's poopy butthole caused mandy to convulse with yet another earth shattering orgasm. Both dr Steven's and mandy just convulsed silently on top of and underneath each othe in silent orgasmic pleasure. Dr Stevens slowly started removing his still hard dick from Mandy's still shitting butthole. As said dick came out mandy let go of all that was left from inside her bowels. Shit started flowing everywhere. Little streaks of white from dr Steven's load could be seen as the flows of shit erupted from Mandy's gigantic smelly butthole. This caused mandy to have one final universe shattering orgasm. Dr stevens got out of the chair and moved the chair over to reveal a drain in the floor. He went into the bathroom and came out with a small pressure sprayer and began spraying himself, the chair, Mandy's dirty smelly butthole, and the whole floor surrounding the dental chair. you could still smell all the filth, but it was a lot less now. Dr Steven slowly lowered mandy down so she was lying on the dental chair now. Mandy had a far away smile on her face. Like she was just let down off of a cloud onto another cloud of sexual bliss.her head was leaned back on the headrest and the light was pointing on her enormous belly. Dr Steven's erection was starting to return and he brought it over to below the headrest. Dr Steven's used the hand control to lower Mandy's head down to his still smelly erection. He pointed the light on his dick and mandy gave a disgusted look and gagged. All the poop was gone, but his dick still reeked of Mandy's dirty smelly bowels. Mandy closed her eyes and very slowly, very reluctantly, started to wrap her lips around dr Steven's mammoth stinky boner. She got about halfway down and couldn't help but gag. Mandy came back up with a huge glob of spit and looked up at dr Steven and asked "can we be done now? My butthole is sore and your dick tastes terrible." Dr Steven's got a grin on his face and replied canlı kaçak bahis "oh no. We are not done just yet." Dr Steven's took his wet spitty erection away from Mandy's well lit mouth and walked over to the front of the chair. He spread Mandy's legs wide to which mandy only lightly resisted. He placed his spitty erection at the lips of her pussy which caused mandy to quiver. Dr Stevens slowly moved the head down to Mandy's still somewhat dirty butthole and started rubbing the head around the rim on slow small circles. Mandy asked in a whiny voice "why can't you just put it in my pussy?! What is it with you and my butthole?!". To which dr Steven's replied "I have always wanted to fuck your butthole. From the first time I worked with you and smelled the sweet stink of the center of your ass crack. There have been big girls in the past, but none that I have wanted to fuck in the butt as badly as I do with you." This filled Mandy's sexual ego a bit and gave her a little confidence. This sexy man that she had a thing for wanted to fuck only her. And while it may have been in her smelly butt, at least she felt sexually wanted for the first time in her life. Mandy got a sly grin on her face and started wiggling her butt along with dr Steven's motion. She got a little more of an innocent tone and said "so you want to put your penis inside of the hole I just pooped out of? Isnt that gonna make your dick really smelly and stinky like poop? Are you sure you want to do that? Its really dirty after you just made me shit all over your dick while you fucked it!" Dr Steven's was hard as a rock after hearing this kind of talk and got a grin on his face as well as he slowly started to penetrate Mandy's dirty smelly butthole once again. Dr Steven's goes in a little faster this time. The inside of Mandy's rectum was still covered with a layer of smelly poop slime so dr Steven's dick easily started going In without issue. Mandy gasped, but in pleasure this time. She was starting to get into this hot guy fucking her butt on a dental chair. Slowly he slid up her butt coating his dick with another stinky layer of Mandy's warm smelly poop slime. The smell was intoxicating to both mandy and dr Steven's. It was dirty and somewhat poopy but more mellow and naughty. It made dr Steven's dick rock hard and mandy's 400lb butthole open that much more. He started pumping slowly to feel every inch gliding in and out, to pull out every little bit of shit his dick could dig out. Mandy had her head in the headrest and had never been more comfortable or in more ecstacy in her life. Here she was in this super comfy dental chair leaned back with a really hot dentist's dick up her super fat stink hole. Mandy couldn't help bit get into the whole situation and talk a little dirty "how does my smelly butt feel wrapped around your penis?" Dr Steven's replied "incredible! I have never been more turned on in my life." Mandy had to ask "why would you ever want to do something so wrong like this with a huge girl like me? Most guys won't even go within a foot of my butt much less my smelly butthole." Dr Steven's had to chuckle "most guys dont understand what they are missing in my opinion. I am intoxicated by the stink of your butthole. Nothing turns me on more." Mandy got a sly grin on her face and spread her ass "then why dont you come take a whiff you naughty boy? Unless you're scared." Dr Steven's immediately pulled out and put the dental light on Mandy's butthole. Her butt was gaped out and having little wet brown farts which is directly where dr Steven's put his nose. He inhaled so deeply it felt like a tiny vacuum in Mandy's dirty butthole. He pulled away and there was little brown streaks all over his nose. He placed his dick head against her butthole and slowly dived in balls deep once again. Mandy was super turned on and felt like getting off with the good doctor as well. She began furiously rubbing her clit while dr Steven's steadily plunged in and out of Mandy's dirty butt. Mandy gets a seductive tone and asks "do you like how sweaty and smelly my butt is? Not to mention all the poop grease. Put yourdick as far up my rectum as you can. Dig all my shit out! Cum up my butt and give me a cum enema!" This was driving dr Steven's wild. He was about to bust. Mandy started squeezing all her butt muscles as hard as she could. Dr Steven's dick was locked tight by her sphincter. Because mandy was so huge, her sphincter was quite strong. Mandy got this sly grin and said " uh-uh! I say when you cum dirty boy!" Dr Steven's couldn't even pull out with the strength of mandy massive smelly sphincter. Mandy took the opportunity to talk really dirty and get the good doctor riled up "you fucking pervert. Tying me up and sliding your dick up my butt while I need to shit. I cant believe you. Your a dirty boy. And now you're sliding your dick up my butt right after I shit everywhere. Do you like how slippery and brown that dental light makes your dick look? Holy shit that feels good!!" Mandy started furiously rubbing her clit as all this crazy sex in a dentist chair was going to make her cum. She released her rectal hold on dr Steven's dick and let him start staining his dick with her rectal juices once again. He didn't want to go too fast but the sight of how dirty and smelly his dick was getting was making things hard on the good doctor. Mandy was starting to writhe and cum on his dick while it was ramming in and out of her butt. Dr Stevens couldn't handle this anymore and coated the inside of Mandy's bowels with his smell white cum. They came together in a torrent of passion and ecstacy. Dr Steven's slowly pulled out and mandy farted a huge lead of thoroughly shit stained cum out of her gaped out butthole. If flowed out quickly and dripped messy brown down the either side of the dental chair. Mandy just grinned in sexual bliss and the memory fades into the dental light.The end