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WARNING THIS STORY CONTAINS: Female Centaur TF, Weight Gain, and Sexual Content

On a beautiful Spring day, we revisit Betsy on her farm as she recollects about her family's pampered horse. As she experiences for herself the life of an overweight horse, she's more than happy to give her helper a personal ride. This story was voted on by my Patrons.

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   After a harsh winter, Betsy savored the feeling of the Spring wind whipping around her neck-length brown hair. Brushing aside the wild strands, she let the bright sun shine down on her tanned, freckled face, and muscular arms. To celebrate the lovely weather, she had replaced her usual work attire with a sundress covered in prints of sunflowers that showed off her impressive curves. Enjoying the beautiful day as she wandered about the grassy field, she almost regretted having to turn back to enter the work shed. However, she knew that if she wanted to enjoy her latest experiment to its fullest, she was going to have to go through some changes.

   Entering the shed, she found Arin busy squatting down to patch up the holes in a worn out mattress. A dirtied red shirt tucked into his jeans showed off his scrawny physique, alongside numerous tears and smudges he had earned through working for her. While he was more than happy to help, she was more interested in the “rewards” she got to bestow on him for being her diligent assistant. Too focused on his task, he didn’t notice Betsy as she snuck up behind him. Kneeling down, she ruffled up his short brown hair to get his attention.

   “Hello Ms. Bevoin, I mean Betsy,” Arin said, trying in vain to fix his messed up strands.

   “How we doing darlin’?” she asked, crouching down to examine his handiwork.

   “It’s rough, but I think I’ve got it,” he said, stowing away his well-used roll of duct tape. “I don’t know who used this last, but I have a hard time believing you would make someone sleep out in a shed like this.”

   “Of course I didn’t. This wasn’t for people to sleep on. It was for a horse named Butter Bowl.”

   “I didn’t know your family raised horses.”

   “We didn’t,” Betsy replied, standing up and brushing dirt off her skirt. “What you’re seeing here is what’s left of my daddy’s attempt to get into the business. He only got as far as getting a mare before it all went to hell.”

   “What happened?”

   “Well, there’s a reason we named her Butter Bowl. One look at her and my momma fell in love. She spoiled the horse silly, giving her sugar cubes and apples for most of her meals until she was about as heavy as three horses put together. Butter Bowl still gave rides, but the most you could get out of her was a slow trot around the field. At the very least, we didn’t have to worry about her running away from us.”

   “So that’s your plan? To try the whole horse ranch thing again?”

   Betsy let out a laugh, still getting used to Arin’s naivety. “This old farmstead is the last place I’d wanna even attempt that. Nah, I got something else in mind. Something to take advantage of the Spring weather.”

   “By lying on an old, horse-scented mattress?”

   “It’ll come into play a little later,” she said, hoisting up her supply bag. “For now, come with me. Think it’s about time we get things rolling.”

   “Yes mam,” he replied, dutifully following her outside.

   Reaching the center of grassy field, Betsy dropped her bag and began shuffling through its contents. Smiling as she grasped what she was looking for, she pulled out her hand to reveal a jar of sugar cubes held between her fingers. “Here it is,” she said, holding it up to Arin. “I even used the same recipe as my momma to make these.”

   Staring at Betsy and the jar for a moment, it finally dawned on Arin what her plan was. “You’re going to turn yourself into a horse?”

   “Kinda. Full on horses are surprisingly tricky. Most shapeshifters tend to avoid going further than fifty percent. Past that it gets a little weird.”

   Arin lowered his head in thought. “Then that means…you’re going to change into a centaur?”

   “Bingo,” Betsy replied, congratulating him by further ruffling up his hair. “That leads us to step one of my plan. Sit back and watch me do what I do best.” Easily slipping off her dress, she handed it off to Arin and let her bare feet touch the warm grass.

   “What do mean by step one?” Arin asked, still getting a little flustered at the sight of Betsy’s bare breasts and butt.

   “You should know by now that half the fun of my experiments comes from the surprises along the way,” Betsy said, pulling the cork out of the bottle. “Trust me, alright?”

   Arin raised a hand to protest, but quickly brought it back down. “Just don’t make it too crazy.”

   “Darlin’, you know I can’t keep that promise,” Betsy replied, placing the first sugar cube in her mouth.

   As Betsy let the cube of sugar slide across her tongue, she began to understand why Butter Bowl was addicted to them. Popping another square of concentrated sweetness past her lips, she could see herself copying the lazy mare’s lifestyle. Laying on a mattress all day while her needs were met, fattening herself up with an endless supply of treats. Her spoiled lifestyle would only take a break to provide short rides around the field with the lucky few she would allow on her back. Glancing over at Arin, she swallowed a handful of cubes to empty out the jar and let her powers take hold.

   Swirling about the sugar in her mouth, Betsy managed to place the emptied jar on the ground just as her body began to change. Shooting Arin a smirk, she turned herself around to present her backsides. The farm boy was treated to the perfect view of her shapely rear being packed on with fat. Rather than sag down, the enlarging mass continued to push her butt further away from her. The first signs of her targeted body were made evident as a tail made up of thin, brown hairs sprouted right above her chunky rear.

   Leaving her backside to continue extending outwards, Betsy let her powers focus on getting the rest of her body to match. Guiding her growth towards her navel, she plumped up her belly with an extra 100 pounds of fat to keep herself balanced. The pudgy tummy sagged between her thighs as it took on various dips and rolls. Cradling her gut between her fingers, she held it back to watch her toes meld together into black hooves. Stomping around her legs to hear the clack of her hooves and the shaking of her belly, she was well on her way towards her ultimate goal.

   Her ears flattened into points just in time for Betsy to hear Arin gulp at the sight of her changing body. Turning her head towards him and noticing how he stared at her growing assets, it was already a forgone conclusion what step came next. Flicking up her brown furred covered ears, she let her fingers grope her breasts. With each squeeze of her mammaries they swelled up with added weight to match her bulging belly. Reveling in the way Arin bit his lip at the sight of her ample bosom shaking about, she got a little overzealous. Further increasing her bust size left her with a pair of udder-like globes that rested comfortably against her belly fat. While they were impressive, a graze of her plumped up fingers against her nipples revealed they had gained quite a bit of sensitivity in the process.

   Satisfied with her main body’s growth, Betsy looked over her shoulder to check on her lower half. Her view was partially blocked by her hair, the strands extending to reach down to her equine backside. A shake of her head moved aside her locks to give her a chance to examine the pudgy, brown fur covered flab of her lower half. Trotting about on her four, hooved legs, she could feel a bulge of fat similar to her belly’s jostling about beneath her.

   Taking a deep breath, Betsy closed her eyes and summoned an image of Butter Bowl in her mind. As she recalled the portly horse, her body was given a few more layers of fat to help her reach the mare’s lofty size. Her arms were covered in blubber that swayed about at the slightest provocation, matching the stocky legs keeping her standing. Tilting up her head, she flicked her ears at the feeling of three extra chins forming beneath her first. Brushing aside her hair, she peeked down to see the way her chubby cheeks spread out her freckles. With some struggling she managed to look over her shoulder to glance at her horse body. It was just as chubby and plush as Butter Bowl’s, if not more. Waving about her tail, she could feel it brush up against her meaty rear alongside giving her a feel of one of her more interesting changes.

   “What do you think?” Betsy asked, slowly trotting towards Arin.

   “It’s um, certainly impressive,” Arin replied, at a loss of words upon seeing the chubbytaur prancing about.

   “I think I went a little overboard on the weight, but I should still be good for a test run.” Lowering herself down to the ground, she waved towards Arin. “Well come on, you’re wasting day light. Jump on and let’s go for a ride.”

   Taken aback by the surprisingly innocuous event Betsy had planned, it took him a minute to register what she was suggesting. Placing his hand on Betsy’s side, he carefully climbed aboard her back. Jerked around as Betsy stood up, his hands scrambled for something to grab onto. In a panic the first thing his fingers managed to grab were her luscious breasts.

   “Sorry!” he said, pulling back his hands.

   “Nothin’ to be sorry for,” Betsy said, looking over her shoulder to shoot him a mischievous grin. “Not like that’s first time you’ve gotten hands on with me. Besides, you better get a good grip. I intend to see what this body can really do.”

   “If you say so,” Arin replied, begrudgingly reaching out to wrap his arms around her gut.

   “You ready back there?” Betsy asked, stomping her right foreleg in anticipation.

   Arin sunk his fingers deep inside her fat folds to use them as makeshift reins. “Whenever you are.”

   The moment the words left Arin’s lips, Betsy started off at a light trot. Her movements were less than graceful, having to rely on her memory of her past rides atop of Butter Bowl. Not helping matters were the saddlebags worth of fat weighing her down on top of her passenger. Through sheer perseverance, she gradually grew accustomed to the way her body moved. Perhaps getting a little overconfident, she clenched her fingers together as she prepared to see how far she could push herself.

   Without any warning, Betsy broke out into a full speed gallop. The passing wind lifted up her hair to create a flowing curtain that whipped around behind her. Each stomp of her mighty hooves against the ground pulled up the grass below and created a sound similar to a stampede of horses. While the feeling of running freely was euphoric, she found it hard to ignore the way her body called out in opposition.

   Both of Betsy’s bellies shook like sacks of jello as she continued to gallop about the field. A constant thumping noise was created by her boobs drumming against her gut. Sweat beaded down her forehead to collect between her chins and drip from her chubby cheeks. Feeling the run take its toll on her overweight form, she was nonetheless motivated to push herself forward. She was too enamored with the freedom this body provided her, regardless of how her plump butt cheeks clapped together or how her once fine fur became slick with sweat. There was nothing on her mind except enjoying the features of her centaur form.

   Straining herself to leap over a rock, Betsy felt a pair of hands clamp around her bosom. Landing on the ground with a loud thud, she barely managed to keep herself standing as she continued to run. Going over several bumps in the road further enveloped Arin’s head within the confines of her sweaty back flab. Fingers sinking into her meaty breasts to keep himself atop her, the heat from running about was joined by another sensation. Judging by the sensation of a certain bulge constantly bouncing against her lower half, she could tell the feeling was mutual.

   Gradually slowing her speed, Betsy set her sights on the shed. Trotting her way over to the front door, she carefully sat on the ground. Taking a few moments to catch her breath and wipe the sweat from her brow, she could still feel her heart rapidly pounding from the leftover adrenaline. Reaching out to feel her beating chest, her hand came in contact with Arin’s.

   “We stopped sugar,” Betsy said, finally getting Arin to pull his head out of her back fat.

   “S-sorry,” he replied, climbing off of her and trying to fix his clothes. “Are you okay? I didn’t hurt you or anything?”

   “Nah, I’m just a little tuckered out. I had plenty of cushion between the two of us to make it a comfortable ride. That being said, I need to catch my breath. Mind going back to grab my bag?”

   “Right away,” Arin replied, breaking off into a sprint to fetch her supplies.

   Given a moment to herself, Betsy rolled over onto her side and spread out along the grass. The cool air that blew across her bountiful flesh helped to revitalize her from the intense workout. Even so, her body still seemed to be overtaken by a sense of warmth. Running her fingers along her belly and breasts, she bit her lip at the urges that flooded her mind. Feeling her tail slide across her womanhood helped to confirm her suspicions that she was in heat. Biting her lip to deal with her animalistic urges, she turned her head away from her needy body at the sound of Arin jogging back with her bag in hand.

   “Here you are,” Arin said, pulling out a bottle of water.

   “Thanks,” Betsy replied, graciously accepting the much needed hydration.

   Twisting off the cap, Betsy held it above her head and poured it over her head. Letting the water wash away some of her excess sweat helped, but she could still feel a warmth emanating from her lower half. Opening up her eyes, she noticed the way Arin was staring at the droplets cascading down her form. Of particular note was the look in his eyes as he watched her, conveying the desires he was holding back.

   “Do you like this?” Betsy asked, sliding her plump hand along her backside, the fur curling beneath her fingers. “Don’t try to hide it.”

   “You do look, um, beautiful,” Arin replied, unable to look away.

   Hoisting herself back onto her hooves, Betsy began walking towards the shed. “What do you say we see what else this body is good for?” With a wink, she stepped inside the shed with Arin entering soon after.

   “H-how do you want to start?” Arin asked, shutting the door behind them.

   Betsy climbed atop the recently repaired mattress and slouched down. “If you don’t mind, I’d like for you to take a look at something for me.” Lifting up her tail, she gave Arin an unobstructed view of her fat ass. A closer inspection allowed him a chance to see her plump womanhood glistening with wetness.

   “Well, whatcha waiting for?” Betsy asked to her awestruck assistant. “Can’t reach back there myself.”

   “R-right,” Arin said as he rolled up his sleeve.

   Used to Betsy’s preferences, Arin began sliding his fingers along her labia to get a feel for her transformed genitalia. While the same sweet spots were present, it was evident that her increased size had made it harder to give her the attention she needed. Desperate to illicit some response from her, Arin threw caution to the wind and shoved his hand inside her vagina. The act did the job of making a moan part Betsy’s lips and sent shivers of pleasure through her body. While she enjoyed the new sensations her womanhood let her experience, they brought up a concern that had been in the back of her mind since she had first transformed.

   “That’s enough for now,” Betsy said, getting Arin to retrieve his arm.

   “I didn’t hurt you, did I?” he asked, cleaning off his arm with a towel.

   “Nah. If anything, your arm was a bit small.”

   “I was trying to be gentle.”

   Betsy let out a slight chuckle. “I’m flattered, but this body ain’t getting off from a delicate hand. No offense, but I don’t think your package is going to cut it either.”

   “Then what do we do? Use a toy or something?”

   “Definitely something,” Betsy replied with a playful grin. “Grab the bottle of pink lotion from my bag and bring it over here.”

   Retrieving Betsy’s bag, Arin pulled out the bottle in question and marveled at its bright pink color mixed with black specks. Accepting the bottle from him, Betsy uncorked it with a loud pop. Smearing a bit of the liquid between her fingers, she gestured for him to come over. Reaching towards his crotch, she undid his zipper to let his pants drop to the floor. Enjoying the blush of red that went over Arin’s face as she pulled down his boxers, she set her sights on his average sized-manhood. It was usually enough to do the job, but it was going to need some enhancements before it could satisfy her.

   Lathering up the lotion between her palms, Betsy grabbed hold of Arin’s member. Slowly sliding her hands along his shaft, she could feel his manhood begin to throb beneath her touch. Several more strokes seemed to pull out his cock to add another foot to its length. Continuing to rub the lotion into his shaft embedded it with splotches of pink and black as it continued to extend. As his penis reached a sizable girth and a massive, three-foot length, the flattening tip was the final touch needed to finish its transformation into a horse cock suitable for Betsy’s needs.

   “T-this is temporary right?” Arin asked, his body shaking as Betsy continued to grope his modified manhood. “I remember what happened last time with the bull potion.”

   “We’ll worry about that later,” Betsy said, sliding her cheek along his shaft. “Don’t you want to see what your pony balogney can do?”

   Knowing how difficult it was to change her mind when it was set on something, Arin nodded in agreement. Making his way around Betsy’s obese form, he got on his knees atop the mattress. Awkwardly crawling towards Betsy with his stallion dick dragging against the makeshift bed, he managed to slide the tip up against the entrance of her vagina. Grabbing hold of her plump posterior, he waited for her signal. Bracing herself for what was to come, Betsy gave a thumbs up.

   The mere process of sliding the massive member inside was enough to send ripples of pleasure through Betsy’s body. As Arin pushed in the entirety of his girth, Betsy clenched her fingers wondering if she had made a miscalculation of her depth. To her relief, her partner sunk all of his member inside with little room to spare. Waiting to see her reaction, Arin was given another thumbs up to give him permission to proceed.

   Keeping a tight grip on Betsy’s backside for stability, Arin began rocking his hips back and forth. Each thrust let Betsy experience every inch of his transformed member’s girth. In a matter of moments, the two of them became slick with sweat from the exertion and rising heat in the shed. Both of them reveled in the new pleasure their changes provided, their sizes helping to accentuate very push and pull of his cock. Ripples that went through Betsy’s portly form as he continued to penetrate her shook about her various fat rolls and breasts. The sound of her flesh slapping together was soon joined with their moans as they reached ever closer to their release.

   Sinking his fingers deep into Betsy’s plump butt cheeks, Arin released his seed inside of her. The sensation of his cum overflowing her pussy was the final push needed for Betsy to experience her own euphoric climax. Slumping down atop the mattress, Betsy took deep breaths as her body shivered through the leftover euphoria.

   “A-are you alright?” Arin asked, his body collapsed against her backside.

   “More than fine,” she replied, shaking about her head as she flicked her ears. “What about you?”

   “I-I should be fine,” he answered, trying to stand up, only to fall chin first back on Betsy’s pillowy hindquarters.

   Reaching back, Betsy caressed his hair with her fingers. “Don’t worry about it stud, you more than earned some rest.” Giving him a gentle head pat, she turned back around and got comfortable against the mattress. “Just sit there and relax.”

   After a few moments, Betsy’s ears picked up the soft rise and fall of Arin’s chest as he dozed off. Closing her eyes as she let herself sink into the mattress, Betsy put off the various tasks that would need to be done to clean up their mess and return them to normal. On a lovely Spring day like this, she could afford to experience the true serenity of the life of a spoiled horse.

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