One day, at the Sunny Glow Orphanage, long-time friends, and recent lovers, Ren and Nora were in Ren's little room, trying to figure out what to do with their futures. They were doing alright in their schooling at the orphanage, but they only had another year left before they became adults, then they had to go out into the world and do something. Further education was a possibility, but it would be difficult without more money. That was when Nora came up with a series of ideas to help them earn some money. Ren had concerns about some of these ideas, and Nora could understand those concerns, but as the ideas came forward, one made Ren pause for a moment.

"Okay, so hear me out. We could become professional sumo wrestlers, use that to pay for whatever," Nora enthusiastically suggested. The room went quiet for a moment as Ren thought.

"Aren't we too small for that?" Ren mentioned.

"That's easy to fix, and probably something we should fix. I mean, look at this," Nora asserted as she lifted her top enough to show her scrawny body, especially her visible ribcage and chest that barely needed a bra. She dropped her shirt before Ren could go too red and went back to explaining. "And I've seen you without a shirt on, you could do with some extra weight too. Also, it'd help us get all strong and tough, we could travel the world competing, and we're already not too bad at fights, but we're not gonna tell the people who owns this place that." Nora leaned back in her seat, folding her arms behind her head. "So, what do you think?" Ren thought through Nora's idea and the ways it could help. Ren had to admit, the idea wasn't too bad, and if it fell through they were still in a better position than before.

"We could try it. Maybe the bakery down the road will hire me and we can get extra food from them," Ren suggested.

"Ooh, clever. That's why you're the smart one in the relationship," Nora cheered as she placed a quick kiss on Ren's cheek.

Meanwhile, at Beacon High School, Jaune Arc was trying his best to pay attention to Mr. Oobleck as he introduced a new student.

"This is Pyrrha Nikos. She will be joining us for this last year we have together, so do your best to welcome her," the green haired teacher announced quickly. The student waved shyly as Jaune got a good look at her. She was on the taller side, maybe just shy of Jaune's six feet tall, with her long red ponytail helping emphasise her height. Her size was also emphasised by the extra weight she carried, especially on her legs, arms and chest. She was a bit on the bigger side all over, even if 'fat' seemed like a strong word to describe her. "I believe the desk next to Mr. Arc is free," Oobleck added. Pyrrha carefully moved to the spare desk near the back of the classroom and sat down.

"Hello," Pyrrha said to Jaune quietly.

"Hey, I'm Jaune. It's nice to meet you," Jaune replied.

Over the next few weeks, as Jaune and Pyrrha shared their homeroom class, Jaune couldn't help but notice that Pyrrha was getting a little bulkier, mainly shown by her clothes getting tighter until she switched it out for something bigger. Having seven sisters meant that Jaune knew not to mention it to Pyrrha, but one day, Pyrrha did the hard work for her as she sat down and a button on her flannel shirt popped open.

"Oh darn, I thought this shirt would last me a bit longer," Pyrrha thought out loud.

"Oh, uh, did it shrink in the wash?" Jaune nervously said, hoping to distract Pyrrha.

"I doubt it. It's probably because of the weight I'm putting on. I guess I put it on faster than I planned," Pyrrha replied. Jaune took a moment to process what Pyrrha said.

"Wait, you're doing it on purpose?" Pyrrha nodded.

"I hope to become a sumo wrestler when I am older, and I can't do it when the other competitors are double my weight, if not more," Pyrrha explained.

"Really? Well, maybe I can help. Not with training, I'm too weak and stuff to do that. I'm trying to learn how to cook, and I could use someone honest and nice to tell me what it's like, and you could get some free food," Jaune offered.

"I wouldn't mind that at all," Pyrrha happily agreed. "If you want, I can use my sumo training to help you get stronger too."

"That might not be a bad idea. Alright then, deal?" Jaune offered his hand. Pyrrha took it and shook it.

"Deal."

Ren and Nora's weight gain left the pair realising one downside that they hadn't considered. Their increased weights came with increased measurements, meaning that the money Ren was making at the bakery and Nora was making helping at the orphanage had to be split to allow for larger clothes. Of course, this negative did come with a positive, as their clothes growing snugger was a sign of them growing into fuller figures. Ren appreciated the thick thighs and plump rear that Nora was squeezing into tightening workout shorts and the fuller, plumper breasts that she made sure to flaunt when the two were alone. Nora enjoyed Ren's big, strong arms and legs that she always tried to get wrapped up in, as well the pudgy little gut he was starting to grow.

This gut was starting to get noticeable for Ren at work, as he waited for closing time so he could bag up the left-over baking and bring them back for him and Nora to share. He was eagerly waiting to fill his belly, even if he wasn't too excited about how tight the waistband of his pants was around his belly, mostly because he got them back when he was beyond thin. As the last few minutes were ticking by, a pair jogged up to the store. The red-haired girl was the larger of the two by a fair margin, with a thick layer of fat all over her body. This was accentuated by her top, which seemed to be stretching to contain the girl's busty body, and her shorts that were basically skin tight around a rear and thighs that had Nora's well and truly beat, but despite all of this she seemed to be barely breaking a sweat. Meanwhile the blond boy seemed to be pretty tired and quite a bit smaller, with most of his weight focused at her small potbelly, that seemed to be a touch bigger than Ren's, and a fair bit of muscle on his arms, legs and broad chest. Seeing the couple gave Ren a slight twang of disappointment, but he did his best to look stoic.

"Hello!" the redhead said cheerily. "We aren't too late, are we?"

"No, no, I was just about to start putting everything away, but if you plan on buying it, that can wait," Ren reassured.

"Oh, thank goodness. We need to keep our calories up, and this looks perfect," the redhead said as she eyed up the sweet cabinet.

"I would have thought you were running to lose weight?" Ren asked. The pair looked at each other before the blond boy spoke.

"Oh, right, yeah, we're hoping to become sumo wrestlers, so we gotta get big, but without ending up too unfit." Ren perked up as he heard the blond boy's explanation.

"Really? So am I," Ren replied. "My girlfriend suggested it, and we're trying it out. At least we aren't as skinny as we used to be." Right on cue, Nora came bounding into the store and, seeing the two customers, suddenly became conflicted about her decision to wear her tightest pink shorts.

"Hey Ren," Nora said loudly.

"Nora, these two were just telling me that they want to be sumo wrestlers like us," Ren explained.

"Oh, that's so cool! Do you guys wanna train with us? The more the merrier, right?" Nora enthused.

"That sounds wonderful," the redhead agreed. "Oh, I suppose we should introduce ourselves. I'm Pyrrha, and this is my… friend, Jaune."

"Not gonna lie, I thought you were gonna say boyfriend," Nora said quickly. "Also, hi Pyrrha, hi Jaune, nice to meet you guys," she added, waving to the other two. Pyrrha let out a nervous chuckle.

"I don't think we're a thing, unless one of us asked the other out while we were in a food coma and then we forgot," Jaune said, sheepishly scratching the back of his neck.

"Aw, that's a shame. You guys are cute, and you'd make a cute couple," Nora said cheerily. A beeping sound came from Ren's pocket.

"Oh, it's closing time. Can we start with our group training once I close up and grab the unbought food for us to eat later?" Ren asked.

Over the next few months, the four new friends gathered daily after Ren finished at the bakery to share in the left-over bakery food and Jaune's cooking and train, and also for a rest day once a week that was spent stuffing themselves silly, to the point where they could barely move afterwards. With their efforts combined, it didn't take long for the effects to show.

Nora showed the most gains in that time, due to being shorter, growing a stout and stocky build with big, strong thighs and a nice, plump rear for her and Ren to enjoy in private.

Ren, being the next shortest, followed closely behind Nora. He had filled out all over with a solid layer of fat, but despite outweighing Nora, it looked like she was bigger than him, at least weight wise. Still, his gains were nothing to scoff at, compared to how thin he was before.

Pyrrha's weight gain had slowed somewhat, sharing Jaune's cooking with more people and training longer and harder. While she wasn't putting on as much fat, her muscles grew as she became stronger and tougher. Either way, with her head start on everyone else, she was still a fair bit ahead of everyone.

Jaune had had the most noticeable gains, on account of almost all his extra fat focusing on his belly, which was growing into a weighty potbelly. While the rest of his body did gain some fat, most of the growth there was muscle, especially his broad chest and strong arms.

At one of the weekly absolute stuffing sessions, Nora was lazing on a couch when she found something on her scroll.

"Ooh, guys, there's a junior tournament on next month! We should totally enter, see how we're doing against people that actually compete and stuff," Nora excitedly suggested.

"Are you sure we're ready?" Ren said groggily, laying at the other end of the couch nursing a very bloated belly.

"I mean, it's not like it's high stakes. If we lose, it just means we know we need to get better," Jaune suggested with a lazy shrug. Pyrrha took a break from eating to sit up and speak.

"An excellent point. We've only been training amongst ourselves, there's a lot to learn from others." The rest of the group nodded in agreement.

"Sweet! Our first competition! We're gonna kick some butt!" Nora cheered, punching the air in excitement. "Oh, not literally though, I don't think we're allowed to do that," she quickly added.

"I… I'm not sure," Pyrrha thought out loud. "Kicks to the chest and waist are fouls, so I would assume kicking there would be a foul too, in the unlikely case that your opponent turns around and leaves themselves very vulnerable."

"Whoa, you know a lot about sumo," Jaune admired, making Pyrrha blush slightly.

"Oh, um, thank you Jaune," Pyrrha said with a big, nervous smile. "I mean, it's just the basic fouls, most sumo wrestlers should know it, it's nothing special…"

"Just take the compliment you adorable smartypants!" Nora shouted out. That only made Pyrrha blush harder.

"Y-you think I'm adorable?"

"I mean, have you looked in a mirror lately?" Nora said, sounding like she was pointing out the obvious on purpose. If it was possible for Pyrrha to go any redder, she definitely would have, since she'd turned into a blushy mushy mess in her seat. "But anyway, we got a tournament to prepare for." Nora tried to sit up, but her full, heavy belly ached when she tried to move. "Okay, maybe another day, but tournament, woo!"

[AN: This was a request by adventuremaker16 that I'm turning into a multichapter thing, since the ideas they came up with are some serious long term stuff that I'm totally on board for. So yeah, stay tuned for more, not right away though, since I've got a few more requests to work through.]