The Checkup
by American Wonton

WARNING. THIS STORY CONTAINS FART/BUTT DOMINATION, FART/BUTT FETISHISM, SEXUAL ENCOUNTERS, AND SCAT. READER DISCRETION IS ADVISED.

I whine as the chain around my neck tugs. Stacey impatiently taps her feet while I crawl to her side. “Good boy.” she mutters under her breath. Her hand meets my head and I am brought underneath her mini-skirt. I tense up beside her underwear, waiting for my treat. BRRRRRRRRRRBBB. The fart is polite and reserved, probably for the benefit of other slaves in the room. As I sniffed my Mistresses bean-scented fart, my gaze roamed beyond her creamy, petite buttcheeks. There were plenty of Fart Mistresses here and plenty of slaves either next to them, following them, or underneath them. Some of the slaves were shaking, cowering in fear. I shared their sympathy. I hated going to the doctors; I only did it to please Stacey. I don’t know where’d I be without her glorious booty. PPPRRRAAAAPPPPP! I let out a gleeful squeal and pressed my nose against her crack. The smells of dried cauliflower and tomatoes graced my nostrils. I loved her vegetarian diet. She patted my head. “Good boy Dom. Be good for Mommy and I may give you a nice tuggy on your stick. Would you like that boy?” I nodded and panted beneath Mommies ass. I loved our roleplay. She was my benevolent gassy mommy and I was her beloved fart pet. I licked the edge of her pussy between her panties. She lightly slapped my cheeks. “No! Down boy! Not in public! You're to behave in public.” BBRRRRAAAPPPPTTTT! A fiercer fart exploded out her pants. I hung my head low and enjoyed my treat, trying to obey my Mistress. The other slaves didn’t. Whines and cries were heard, along with Mistresses trying to silence their slaves. I was glad Stacey wasn’t too rough. The doctors, I couldn’t say the same.

“Stacey and Dom? Doctor Bertha will see you now.” There it was. My checkup.

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Everything about Big Bertha’s office was intimidating. Diagrams and posters instructing how to “care” for your slave were strewn across the walls. In an open drawer I could see a box of dildos and buttplugs-who they were for, I had no idea. Besides all that, was the smell. There were no vents or windows to counter the massive amounts of slaves and mistresses passing by and passing gas in her office. Looking at Big Bertha’s ass, I wondered how much of the stink was hers.

“Gimme a loud one dear, really big!” she instructed Stacey. BBRRRAAAAPPBPLLTT! I watched Stacey’s bright pink butthole open with glee. It always gave my willie a nice tug at. She was a good mistress, always keeping it washed for me. “Good, nice dilation, good reflux for speed. Have you been toying yourself at all Ms. Stacey?” asked the doctor. “Oh no,” she replied giving a wry smile to me. “I have a nice little friend who helps me with that.” I gave her a warm smiled back. The only thing I liked better than her dominance was her compliments. I got a boner just thinking about the times I got to stick it in her poophole. No matter how short she made it. Big Bertha laughed. “Well, looking at shrimp boy here, that won’t do you much. If you want better farts, I suggest a deeper poking stick then what he’s got.” said the doctor, bending over for show. The stink of her ass hit me, doubling when she reached behind to spread her massive, black booty cheeks. They certainly didn’t call her Big Bertha for nothing. Her ass was double the size of my Stacey. My gaze unfortunately hit her asshole, bulging forth with a dark brown hue. Her hairs tingled with glee at the sight of me...no doubt eager to brush against my nose...I gulped. “Wow! What do you use for that?” said Stacey, rubbing the top of her cheeks. “Mostly I toy with vegetables; zucchini, larger carrots. Being a vegetarian I’m sure you have those lying around?” she asked playfully. Stacey smiled. “Yes, but they’re usually to eat.” “Why not both?” said the doctor. “Dom will taste them no matter what you do with them!” The two laughed and talked it up some more while I cowered in fear. To my dismay, Stacey was instructed to go to the waiting room. “Goodbye Dommie! Give mommy a kiss!” She turned around and I planted a good, long kiss on her cheeks. No farts. I whimpered as her delicious butt sauntered down the hall. I turned around, the silhouette of Big Bertha behind me. She smiled. “Let’s have some fun.” she said.

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I always fidget with my restraints. And how could I not, what with Big Bertha’s hips slowly lowering onto my face. I was powerless, no hands or feet to stop the oncoming threat of her mountainous booty flesh. I heard a loud gurgle; something typical of a skilled farting physician in her profession. I could almost see her smiling above me. She loved her job.

PPPPPPRRRRRAABBLLLTTTT! Oh god, her farts were powerful. I gagged as the sour cream and onion stench poured down on me. There was no escaping it. Her butthole was flexing above me, almost maniacally laughing at my struggle. BBBBBRRRRRRRRAAABBLLLTTT! Bertha laughed. “Your reflexes seem to be working perfectly. I can definitely sense the flight or fright response.” PPOOOOOOOTTT! A dry musty fart shot at my temple. Her butthole remained open, years of constant dildos and toys stretching it to capacity. I hated her butthole; it prolapsed, allowing more gas to seep through her intestinal walls. I heard Big Bertha kept mice in cages for such “pleasure enhancing experiences”. Sick bitch. PRRRRAABBLLTTOOTTTT! Oh god, disgusting bitch! I couldn’t contain my coughs as she laughed above me. Her butthole became dazed before me; I could see the stinky heat waves push out her anus. I became lightheaded. The good doctor found it a good time to take a break, thankfully.

She sat in silence, scarfing down the last of her smoothie. I remained in the straps, thankful for every fresh breath I was granted. Suddenly, Big Bertha rose from her seat. “God, I can’t believe some of the little shits that get sent down here.” she said. Her ass was placed above my head again, where it remained. BBBBBBLLLBBBTTT! “I mean, look at you! Scrawny, no dick, can’t even hold a beefier fart down your gullet! I think it’s what she’s been feeding you...or rather, farting into you.” PPPPRRRRRRRPPPPTTT! “Ah, you hear that ‘dommie’?” she said in a mocking tone. “That’s a REAL fart. To make that, you need protein. Meat! Not to mention it gives you a leaner figure…” I writhed as her asscheeks separated onto my face. Neck deep in her crack I groaned under the pain. BBBRRRAAABBBPPPTTT! Her fart seared into my skin. I felt like I would pass out under the heat again. “Haha, you’re such a little bitch, Dom!” said Big Bertha, bouncing on my skull. My god, her ass was the size of a baby elephant! Some doctor, I’d probably leave here with a concussion. Wait till I tell Stacey!...but she’d never believe me.

BBRRRRRAAAAPPPPPTT! I coughed as Big Bertha’s exiting fart rippled my lips. She gulped down the last of her egg and bean smoothie. Break time,(or whatever constituted that) was over. She set the glass down and positioned above me. My eyes peered open as she spread her cheeks above me, asshole wincing in delight. “Now, open wide and say ‘ahh!’” she said, a smile on her face. I knew she would pry it open...what was the point? I obeyed and soon felt her massive butthole cover the width of my mouth. I prayed I could leave with my taste buds intact.

PPRRRROOOMMMPPTTTTT! The fart escaped, shooting her fart down at rocket speed. My mouth and tounge burned. My cheeks inflated fully. I gagged, only to have my tounge caught with her prolapsed asshole. “Mmmm, they don’t make em like that anymore, huh fartboy?” said Big Bertha. She rose, with me gasping. “Now: the taste?” I took a 5 second break to gasp. “Do you want another example?” she asked. “No!” I shouted. Regardless, I had to take another five seconds as the methane receded into my brain. “It’s...steak.” I answered. Without a congrats, her butthole sank back into my teeth. BBRRRRAPPPTSSSHHHT! Her slimy wet fart flew forth. I choked on spittle and fart juice. “And that?” she asked sighing in pleasure. No problem there, my saliva VERY clearly held the flavor. “Eggs and (cough!) rice!” I screamed. She smiled, satisfied with her test. “Good.” Big Bertha then bent below my waist and flicked my weiner. I yelped...Stacey was much more gentle. “Good to see this things at least working. Can’t believe Stacey let’s a man penetrate her...especially a little squirt like you! I take dumps larger than this thing!” I was given a slap, hard. My dick screamed in pain, but I wouldn’t give her the same satisfaction.

One last break. The final test. Then I could see Stacey again. The thought brought me joy, sniffing her petite, little vegetable rippers. Unfortunately, Doctor Bertha’s ass became a huge distraction. She stretched and groaned, doing everything to strengthen the muscles in her buttocks. PPPRRRRTT! A tiny, alien fart. That wasn’t her usual repertoire. Something big was coming. Sure enough I heard a gurgle. “Ohhh, I think You’re gonna love this one.” Said Bertha, smiling back at me. “It’s got a nice texture to it. HURRGHH!” With a large grunt, Bertha’s asshole opened. Out popped out the head of a shit, so massive in size. The very tip looked like it could fill my mouth-and indeed it would. “You ready for me, toilet?” asked Big Bertha. I winced as she summoned the strength to yo-yo her shit back inside. I felt like puking watching her asshole suck back from 5 inches to 2. “There’s always time to call for Mommy. Like how you did last time?” Big Bertha laughed and sat on my hips, butthole very intentionally placed over the head of my penis. I felt it barely penetrate, tip of penis touching tip of turd. I sucked in my breath. “Get it over with,” I said, a proud tone that would please Mommy. Big Bertha laughed, then planted her ass over my face. “Open wide.” she commanded. Bravely, I did so.

At first, she toyed with me. I could feel the turd touching my tounge, then exiting. Same and same. The taste was awful, like tasting sewer garbage. PPLLTTT! Another small fart managed to run around her shit’s edge; it echoed the foreboding stench. Suddenly, I heard a grunt. Big Bertha decided her shit had been held for too long.

SHLOP! My mouth instantly became full of her feces. My eyes watered and I cried out of desperation. Still it came. “Ahh, I love the eggy mixture,” taunted the doctor. “Really helps the push. HRRGGH!” Another loud grunt sent another 4 inches into my mouth. By now I knew the drill, hurriedly chewing through the pain. My gums expanded with the push, giving me much pain. I swallowed and gulped, hoping to lessen the load. It didn’t help much. More grunting. 8 more inches. Then a sigh. Big Bertha had pinched off at an astounding 15 inches. Something any Mistress would be proud of.

I chewed and swallowed, hoping to be finished as quick as possible. Big Bertha made it hard. FFFRRRRAAPPPTLLLTT! Her fart stank like a thousand corpses, mixing in with her disgusting shit. I cried trying to finish. Another bite and I sank my teeth into her ass. She laughed. “Wanting more din-dins, huh toilet?” she said. BBBLLLLLLAAAPPPPPPTT! Big Bertha sighed, patting her large booty. “I think you should finish what’s on your plate first.” FRRRAAAPPPPPTTT! Another fart to assault my mouth. I found myself choking, my natural instinct to close my esophagus at such smells. She giggled at my plight. “Need a little CPR?” Big Bertha sent her ass crashing on my chest. Shit was shot out of my mouth and back in. She was quick to fart on my misfortune. BBBBBBRRRRRRAAAAPPPPPTTT! I gagged at the stench. Dried eggs and chicken. I was so close! My last gulp sent the rest of it down. I panted in relief. It was done. Big Bertha stood smiling above me.

I don’t remember the “anesthesia” the doctor gave me. No doubt it was horrible. Her usually method of distribution was a nozzle leading directly to her anus. Usually it was quick and painless. Sometimes, a few rancid rippers snuffed you out. Lucky for me, my metabolism didn’t beat her methane.

I awoke to a smiling Stacey above me. “Hey there Dommie!” she said, face beaming. Big Bertha was quick to step by her side. “He was a good little fart sniffer, Stace. Good vitals, jaw is pristeme for fart swallowing. Isn’t that right Dom?” she asked me. I frowned, letting her know that one day she wouldn’t get away with this...hopefully.

I didn’t even see Stacey plant her ass near my face. BRRRR PPTTT! Her fart smelt of cheese and milk. My favorite. “I went out and got some sniffing glitter for my butthole, Dommie. Wanna go home and try it out?” I lept out of bed and licked her thighs. My cute as hell ansewer for yes. “Ohh, I don’t know about that glitter, hon. I’ve seen some studies relating that to cases of itching.” said the doctor. No doubt she was bitching to ruin my fun. “Oh well. Can’t live forever.” said Stacey. “Maybe we’ll try it out after fuckins. Would you like that boy?” I pawed at her hips. There could be nothing I’d rather do than hump her like the obedient boy I was.

“Here, have a treat for the road.” said Big Bertha. I watched her turn around and undo her pants. I flinched, waiting for another deafening fart. “Go ahead, reach for it Dom! Well? Don’t be rude boy!” said Stacey. I cautiously peered back to find a stick in the Doctors’ mighty hole. It looked puny inside her butthole’s mighty grasp. “Um, I’m good.” I said. “Dommie! Rude!” said Stacey, wrapping my hands. “C’mon Dom, I brew them fresh!” said Big Betty in an unnerving sweet tone. BBRRRRRLLLLBBBBPPPPTTTT! Her fart sent me jumping. No doubt the treat was ruined even more...but I’d better pull it out anyway. With quite the amount of effort I pulled it out. A small fart rewarded my strength. Of course. “Until next time, Dom.” said Big Bertha.
In the car, I cautiously licked my treat. Green apple sucker. My favorite, if it weren’t for the brown spots staining the outside. Without Mommy looking, I tossed it out the window. Hopefully we will switch doctors soon.