James Duke
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RWBY Sumo 3
🕑 Added 2025-08-20 02:00:15 +0000 UTCPart 1: https://www.patreon.com/posts/comm-rwby-sumo-67246832
Part 2: https://www.patreon.com/posts/rwby-sumo-judoka-71166514
Sorry this is so late! Also, This is a continuation of a fairly informal comm series. If details are a little fuzzy between entries, I apologize.
--- Sister Talk And Then a Sauna Meeting ---
“Yang?! This is really Beacon?” Ruby Rose said as she was led through the halls of the sumo school. Her eyes spiraled with confusion as she studied the seemingly endless grand architecture. “I can’t believe you actually go here! How has it been so far? Seriously, you have to tell me everything!” Stars filled the young woman’s eyes as she looked at her older sister. She had never imagined that Yang would invite her out to tour the school. Moreover, she had never imagined that the administration of Beacon would approve such a frivolous venture. While a fangirl of the sport, Ruby was not a sumo herself. She had not been blessed with the sort of ability to pack muscle and fat onto her body like Yang had. Even as the two walked together, she could see how much her big sister had changed.
Yang was nearing 280. Ruby, through her years worth of observing sumo, could tell that at a glance. Moreover, Ruby could tell that Yang had hit a growth spurt of sorts. Her gut, a little flabbier thanks to many meals spent with Weiss, overhung the lip of her mawashi. The artistically woven band was so stretched that it had begun to cut into Yang’s gut. Her top was equally pressed, falling to the wave of penned cleavage. Her breasts rolled back and forth, even pouring over the sides of her bright yellow tube top. The most telling sign of Yang’s growth was her stopping to adjust her bra or mawashi. Using her thumbs, she would run them across the band digging into her belly and work to free her buttcheeks from an encroaching wedgie.
“Aww, it’s nothing, little sis.” Yang rubbed the top of Ruby’s head. Ruby ducked under the pressure and strength of the sisterly assault. Breasts, belly, and booty all smacked and jiggled into her skinny body. Ruby slowly twisted away, trying to pull Yang’s arm off of her head. She remembered a time when she and Yang were more evenly matched. Now it was like trying to wrestle a tree that had been wrapped in mattress stuffing. Satisfied with her demonstration of power, Yang let her sister go. The two continued their slow walk down the hallway. “I’m just glad that you could come up and see me. I’d love for you to stay longer. Maybe you could stay a week or two?” Yang beamed and the hallway became a little brighter. “You could meet your heroes. . .and the next generation that will become your heroes.”
“Yes! Of course, I’d freakin’ live here if I could!” It was Ruby’s turn to attack Yang. Overcome by a true and honest fan of sumo, Yang was forced back a bit. It was not until Ruby remembered where she was that she stopped hugging and praising Yang. Feeling the gravitas of being in such a hallowed, traditional institution, she fluffed her skirt and bowed to Yang. “I mean, if you all will have me.”
“Save the formality for Glynda.” Yang elbowed her sister. She was about to say more when a bell tolled through the hallway. Yang’s eyes opened wide. “Shoot! I’m late.” She started to run down the hall before backtracking to Ruby. She tossed a set of keys to the small girl. “Here, these will get you pretty much anywhere. See what kind of trouble you can get into.” The fat blonde gave a quick finger-gun salute and went back to running down the hall. Her chubby butt bounced and devoured more of her mawashi. Ruby, alone and excited, wondered what rooms she should get into first.
---
Pyrrha was relaxing in the junior sauna when she heard a dull thud and a wet splat hitting the door. She was jerked out of a relaxing day dream, jumping and yelling that someone was launching a surprise attack on her. While she did see another sumo, it was perhaps the furthest thing from an attack. Yang was breathing heavily and pounding on the door. Her gut was smoosed against the glass, rubbing back and forth as her fists pounded the wood. “Pyyyrrrhhhaaa!” Yang’s voice was muffled through the glass. “Sorry I’m late! My baby sister is in town.” Yang tried to yell through the glass, Pyrrha caught one word in four. The red head instead lay on the ground trying to catch her breath. Her stomach rolled in and out with her panting, moving the waistband of her mawashi erratically. The dwindling stretch of fabric, small and nearly useless in the face of Pyrrha’s beach ball gut, could not decide whether to rest atop her belly or below. Too busy hold her chest in fright, Pyrrha did not bother to adjust the her mawashi.
Yang, realizing what she had done, backed away from the door and opened it. A chill went through Pyrrha’s chest, making her exposed nipples diamond hard. Yang jumped into the room, bending over to help her teammate to her feet. “Sorry, sorry! I got a little manic on the way over here.” She bent low, working to grab Pyrrha’s arm. Yang’s butt bounced against the door to the sauna. When she would move it would smack the door open, allowing the chill breeze to enter again. In turn, this would cause Yang to straighten. The cycle repeated several times until Pyrrha grabbed Yang’s arm and started to haul herself up. “I tried to get over here as fast as I could. Didn’t want to miss out on our sauna time.” Yang hefted the bigger woman to her feet, going so far as to brush her mawashi. “Anyway, how are you?” She smiled, trying to resume normality but looking all the more awkward for it.
“You’re almost as late here as you were to practice the other day. . .and our eating session after. You are lucky you are cute, Yang Xiao Long.” Pyrrha flicked Yang’s gut, enjoying the ripples which spread across it. The two women stood in the small sauna, their combined weight of nearly 700 pounds easily filling the small room. Those having not graduated to professional sumo status were relegated to the junior sauna. While an expensive and well built room, it was almost painfully small. It was meant for girls who were just beginning their journeys as sumos, those small and stripling girls who had yet to put on their first 50 pounds. Yang was well beyond that and Pyrrha even further. Pyrrha’s weight had exploded upwards, rocketing past the 300 mark in the months since her bout against Blake. Routine training and sloppy eating sprees had developed her into a 400 pound fatty. Her stomach flopped well over her undersized mawashi, pushing at the hopelessly undersized uniform. It had little trouble contending with Yang’s gut, pushing the smaller pile of fat backwards. “I am glad that you could make it, though. Sauna time is always more fun with a friend.” Pyrrha hugged Yang, squishing her rotund body against the smaller woman. As with their sparring, Pyrrha effortlessly dominated her friend without trying.
“Oooff. . .slow down there, big girl.” Yang joked. “This isn’t practice, you don’t have to use all your strength.” She blushed as Pyrrha’s naked body pressed against her own. The crimson haired woman was as strong as an ox and nearly as big. “You’ve been. . . slaughtering us in practice. . . and beating us in. . . the eating competitions.” Yang had to struggle to breath, feeling Pyrrha’s crushing grip grow tighter. The woman seemed to be part anaconda. Yet, her strength was cushioned slightly by all the adipose she had amassed. Her doughy gut rubbed against Yang’s sensually. “I might need. . . a. . . break.” Yang felt herself being lifted off the floor. Should Yang ever forget she was not the biggest woman on campus, Pyrrha was there to remind her.
“Oh come on, you know you want more! You were begging for me to stay later at the cafeteria yesterday.” Pyrrha teased, tightening her grip on Yang for just a second. It was fun to show her how much she had grown, to say nothing of the excitement of their bodies folding into one another. “Besides, it's just so much fun to be big and fat!” Pyrrha gushed as she crushed the life out of Yang. The blonde woman squirmed, tapping her hand against Pyrrha’s inflated thigh. Satisfied that she made her point, Pyrrha dropped Yang, perhaps a bit too quickly, and stepped back. She fought to keep from tripping over the bench. Her meaty thighs backing into it and her butt resting atop it. “I thought you were miss rough and tumble.” Pyrrha held a cocky but inviting grin, daring Yang to come closer and return the hug. Her training so far that day had been weights and eating, nothing involving another woman. Pyrrha was feeling more than a little desperate for the touch of another person. “You aren’t afraid, are you?” The bigger woman puffed on her chest, swamping Yang’s cleavage with her own.
“Hmmm. . .maybe of Glynda and Blake’s mom. But definitely not you, puffy.” Yang punched her friend’s shoulder. “We all know you’re just fluff.” She teased the big woman’s stomach by bouncing it up and down. It was heavy in Yang’s own chubby hands, no doubt stuffed to the brim with food. Yang rolled the mass of fat back and forth, shifting the weight from one hand to the other. Her biceps bulged as she worked to keep the large gut aloft. It was impressive that, for reaching the weight she had, that Pyrrha’s stomach had managed to stay as singularly round and bulging. It was like she was permanently stuffed, her gut reaching out to the furthest extent possible. However, her belly was infinitely soft. Fat draped down between the blonde’s fingers, filling any free space with its marshmallow like consistency. Yang took special interest in how Pyrrha’s naked breasts shook and bobbed against her stomach. It was like two moons orbiting a large planet. “All you do is stuff yourself. Which, so do I. . .but I think you might have a real eating problem.” Yang matched her teasing with a wink.
As always, frank discussion of the rigorous stuffing and force feeding that the girls went through led to feelings being stirred up. Memories of old stuffing sessions blended with the fantasy of future ones. Both Yang and Pyrrha found themselves panting a bit, each imagining impossible feasts which they were forced to devour. “I might. . .but only because you enable me!” Pyrrha bumped her gut into Yang. “Always shoving cake in my face or pushing another rice bowl to me.” Pyrrha shrugged, making her large breasts bobble against Yangs. “What’s a girl to do?”
“You’re definitely misremembering. I remember some red headed monster taking all my precious food.” Yang pushed Pyrrha lightly with her belly, making sure there was a resounding clap for the tiny sauna. Her blush grew a little deeper as she felt her stomach meld with Pyrrha’s. Large and sweaty, the two paunches had much to discuss with each other. “I wanted to get a big, stuffed belly. . .but someone decided to make that a little difficult.” Yang acted like she was mad, instead getting hot and bothered by the interaction. “I should probably try to teach you a lesson for that.”
“I think you will find that I am more than up to the challenge.” Pyrrha checked her friend, stepping forward just a little. The two women’s chests clashed, each breast looking for dominance. Pyrrha’s were large, filled to the brim with fat, but Yang still held an advantage. “ You and those inflatables you are always lugging around.” Pyrrha matched Yang’s earlier teasing by poking and slapping at the thinner woman’s large breasts. Going one step further, she pulled the yellow top that housed them off, Yang gleefully putting her arms up and letting it be pulled off of her. Once freed from their cloth prison, Pyrrha went back to pushing Yang’s breasts around. They swung like pendulums out of control, clapping and slapping against anything they came in contact with. She laughed and gave Yang’s breasts a light squeeze. While trying to maintain a serious face, she marveled at just how soft Yang’s torpedo tits were. Even when they were in the middle of a practice match, she could take time to appreciate their size, perkiness, and general huggability. “Besides, I’m not going to get distracted by these things like your other opponents.”
“You seem to be pretty distracted right now.” Yang shifted her weight, but did not stop Pyrrha from her playing. “You could at least help me out of all my clothes first.” She pulled on her mawashi, letting it slap back against her doughy hip tellingly. Pyrrha was happy to oblige her friend. She bowed down, sliding her hands against Yang’s buxom body. The red head tugged the tight circle of cloth, making a big show of how tightly it was plastered against Yang’s hips. Yang might have been thinner than Pyrrha by 100 pounds, no honest person could call her skinny. Her body did a good job of filling out her uniform, pressing it to its absolute limits. She looked all the bigger as Pyrrha began to tug off the yellow cloth and her gut was allowed to sag down to its lowest point. Her round belly flopped onto her thighs. Yang shivered a little, excitement running through her. It was one thing to measure bodies with Pyrrha, but another thing entirely for her soft hands to be undressing her. Looking down, Yang saw her own large breasts and gut, with Pyrrha’s own heavy body blooming outwards. She could not see the other woman’s face, but knew it was around her thighs.
“Ok, step forward a bit.” Pyrrha said, having dropped Yang’s mawashi to the floor. The blonde lurched forward, her gut accidentally splashing against Pyrrha’s fat back. “Oh!” Her head sprung up in surprise, bouncing against Yang’s belly-shelf. When the two looked eye to eye again they shared matching blushes. “Sorry, not used to your new fat yet. You aren’t as tiny as you used to be.” Pyrrha smiled, trying to play off her accidental touch as a joke.
Yang pretended to be offended, a trick she had picked up from spending time with Weiss. “I think someone can take their own clothes off then. Since you feel like being rude!” She tried to turn away from Pyrrha, but only succeeded in smacking her naked ass into the other woman. The clap filled the small sauna. There was a brief pause, but then the two fell to laughing. The fat upon their bodies danced as they laughed, bouncing up and down with an excited, sensual energy. Ripples began and spread to every corner of their inflated frames. Yang laughed hard enough that a tear came to her eye.
“Nice try, but you aren’t getting out of things that easily.” Pyrrha returned fire, sending her own massive ass into Yang. Without trying, she shoved Yang out of place. She readied and fired another thrust of her hips, excitedly waiting for the wet slap of sweaty blubber to fill the room again. All these antics in the sauna had worked up fields of perspiration on the two. Their bodies glistened with sweat, giving them an almost angelic hue. Pyrrha’s second hip thrust landed even more true than the first. It was a true moon landing, with both women’s butts crashing perfectly into each other. It was success on a level that Pyrrha had not seen coming. Both she and Yang straightened violently, unused to such frank contact. Pyrrha wanted to give a little distance between them, but the space of the sauna was too small to allow that. The meaty women stood next to each other, bodies threatening to collide further. Thankfully, Yang was more than capable of breaking the tension.
“Always just one step further with you.” She reached down and slapped Pyrrha’s exposed ass. “Ok, blubber butt, I’ll help you if you stop hitting me.”
Excited that the moment had passed with ease and that Yang was going to be putting further hands to her body, Pyrrha turned around. She put her arms on the bench and shoved her ass back as far as it would go. The line of red fabric was all that stood in the way of her two gigantic, chair swallowing buttcheeks from clashing together in a fit of slams and jiggles. Yang was taken aback, having never seen something so huge and tender upfront. While she and the other ladies changed in front of each other, there was hardly ever this level of sensual energy to it. She realized what an opportunity she was being presented with. Her hands shook a little as she wrapped them around Pyrrha’s waistband and began to pull the small covering off. It was tight, far tiger than her own mawashi had been. Pyrrha was heavier than her by an order of magnitude. The red head’s thick ass and thighs clung to the mawashi, further enhanced by the sweat that now clung to the two of them.
“Come on, Yang, you can move a little faster.” Pyrrha teased, swinging her massive hips back and forth. Yang slid the fabric down, her face inches away from Pyrrha’s ass. Pyrrha continued to bounce, rocking on her heels slightly. Her booty would jut outwards for a moment, coming a hair’s breadth from touching Yang’s slack jaw, and then return to its resting position. Yang fought against her own impulse control to not bury her face between those gigantic cheeks. Instead she rolled the warm cloth down its owner’s elephantine thighs, taking a small opportunity to feel how soft and slick they were. It was hard to imagine a woman more perfect than Pyrrha. She might not have yet had the raw mass of Glynda or Kali, but that would come one day. When that day arrived, she would be one of the hottest commodities on the professional sumo circuit. Yang’s head was filled with visions as she removed the mawashi and led Pyrrha over to the bench. The other woman sat, 400 pounds of fat warping the wood as her weight was added to it. Pyrrha somehow managed to look even fatter when completely naked.
Yang sat next to her humongous friend, her own portly frame once again dominated. Importantly, though, her spirit was not. “See, not so difficult when you stopped moving so much.” The blonde reached a thick arm over and patted Pyrrha’s gut. “Glad I could let this beast rest free for a little bit.” Her arms circled around the partially deflated orb, even going so far as to tease her lower rung of flab.
“Could have been faster. I think you were afraid of fumbling.” Pyrrha teased, her nose floating close to Yang’s. She leaned over, letting all of her mass fall atop the other woman. Placed in a similar position to the one she had put Ruby in earlier, Yang wilted under the weight of her larger friend. Pyrrha wrapped a hammy arm around Yang’s broadened shoulder, making sure to squish her tightly. “It’s ok to be a little intimidated by me being big. You can admit that you are afraid of strong women.” She laughed as one of her large breasts fell onto Yang’s. While it was still smaller than the blonde’s counterparts, it would not take too much more growing for them to catch up.
“I don’t think I even know the meaning of the word.” Yang tried to push back, but found herself going nowhere. Lacking other options, she put her forehead to Pyrrha’s. Their breath mingled in the sweltering heat of the sauna. It would take but an inch more for another collision, though this time it would not be their hips or butts meeting. “I kinda think you might be the one that’s afraid.” Yang’s lips were tantalizingly close to Pyrrha’s. Electricity seemed to jump between the two pairs of lips, creating the illusion of contact. Both women knew that they hadn't touched, not yet anyway. Yang held perfectly still, sensing Pyrrha’s wavering. While smaller and skinnier, Yang had found her own way of gaining the upper hand. She spoke again, daring the other woman to move either forward or backward. “Are you?”
