Chapter Text
July 15th, Gym
“Thanks for coming, Izuku. Sometimes going to the gym by oneself can be nerve-racking.”
“It's no problem, Fumikage. I have been getting a bit sore with the intense workouts everyone is pounding me into the ground with…” Izuku said with a bead of sweat rolling down his brow.
Izuku Kayama Midoriya, who later added Kayama to his name to honor and thank his secondary mother, Nemuri, for joining their family, was with his best friend, Fumikage Tokoyami. The raven-headed boy had asked him to come hang out while they did their training.
Naturally, the plumped-up quirkless boy had no issue hanging out with Fumikage. They haven't hung out in a while, as both of them are training for the U.A. Entrance Exam.
Fumikage struggled with the pull-up bar because his arms were thin like noodles. He planned to use Dark Shadow to zoom past the competition mainly, but after a talk with Ms. Kayama one day, she suggested that he build up his body as well if his quirk becomes useless.
So that's what he is doing now, struggling to gain muscle to his lithe body. Dark Shadow was trying to root for him, encouraging him to keep going until Fumikage could no longer go like a coach getting one of his players ready.
Fumikage Tokoyami wore a black shirt made of breathable material for exercise, basketball shorts, and purple shoes from a brand the teen liked.
Meanwhile, right next to Fumikage was Izuku on the other pull-up bar. Except for him, he wasn't working out his arms. Here, he was building his otherwise pudgy core by doing inverted hanging sit-ups, a strenuous exercise that many people attempt without proper instruction and training. Izuku had all that training with his family, so he was alright even with his plump exterior.
Today, Izuku wore form-fitting yoga pants that covered his feet but were as thin and breathable as pantyhose. Over that, he wore a dark-green sleeveless leotard with his family name embroidered in black kanji right above his large, fat ass. In all, this choice of attire was Izuku's default, the outfit he preferred to wear when working out alone or with Fumikage. The tight material accentuated the fat curves of his body and showed off quite a bit of his femininity while hugging his loins tightly downstairs.
The leotard and leggings squeezed every part of him, but Izuku didn't mind because it made him feel so good. Sort of like being trapped inside Yuu’s suit, stuck against her sweaty body and tight suit as he tries to pump into her massively obese and voluptuous body.
Izuku lifted his body, crunching upwards to get his fingers to touch his toes where he was hanging. Even with all the training he had, it was especially tough for Izuku because the blood rushed to his head.
The two friends continued to talk and work up a sweat for a while until Fumikage collapsed from the bar. Izuku carefully removed his feet from their position to help his best friend up.
“Are you okay, Fumikage?”
The raven-headed teenager accepted Izuku's help and was pulled to his feet. “It's hard to imagine that this will do anything for me for the entrance exam. I hardly feel a difference.”
Izuku gave his friend a reassuring smile. “Not with that attitude, it won't. Mama did tell you not to work too hard. It won't do you any good by overworking yourself.” He then looked at the time. “I'm getting a snack, you coming?” Izuku asked, wiping some sweat away with his towel.
Fumikage nodded and did the same, but with droopy arms. “Now that you mention it, I am a bit hungry.”
The two friends walked to the other end of the gym, where the break area was, with a few vending machines full of snacks and drinks. Some were sugary and high in calories due to individual quirks that altered their biology, causing them to require more than others.
Izuku fished out some money and got himself an Orca Fuel. It was a sports drink sponsored and made by the Killer Whale Hero, Gang Orca, and was quite similar to an American brand of sports drink from before quirks came around by the name of Gatorade. The teen got that drink along with a substantial-sized bag of mixed nuts, as they helped build his fat ass to perfection.
Fumikage, meanwhile, just got himself some grape juice and a bag of salted sunflower seeds.
The two friends sat at one of the tables, resting their bodies as the faint sounds of other people working out filled the background.
“How are you and the others even able to move around just as easily, if not better than everyone else?” Fumikage was a longtime friend of Izuku, yet he was always dumbfounded by how effortlessly his friend and his family of obese women could still do what they wanted despite their build.
Izuku giggled at that. “Well, most of them get to call themselves heroes because they have the drive and will to make their size help them be better heroes. It’s the same thing with my Mom, except it's at the club. She did say that customers tend to tip the bigger women more.” Even though Izuku had gone through this topic with Fumikage many times, he didn't mind sharing it.
Before Fumikage could say more, they were silenced as a large girl with long black hair in a ponytail ran into the break area, b-lining toward the vending machines. She was obese, on par with, if not a little more than, Izuku. And voluptuous to a certain degree that the sports bra and shorts she wore strained from the sheer amount of fat they held back, with the seams almost like little men crying out in pain from holding both ends.
Izuke and Fumikage looked at the girl curiously as they heard her curse as some money rolled out of her hands and under the machine.
The girl fell to the ground and tried to reach her hand under to retrieve her yen for a snack, but she stopped when she heard a voice. “Uh, hello?” The girl turned around to see a green-haired boy who was also obese and bottom-heavy with hints of femininity.
“Yes?”
The boy held out some money. “I saw you lost some change, so… you can borrow mine.”
The girl got back up with some struggle and saw that the boy had offered her some money. She hesitantly accepted with a “thanks” and returned to the machine. She got what she wanted and helped herself by quickly gobbling down whatever she bought. After taking down her snack, it took her a moment to register what she had done, and she blushed before apologizing.
“Oh my God! I'm so sorry! My name is Momo Yaoyorozu.”
Izuku smiled. “Nice to meet you. I'm Izuku Kayama Midoriya.” He then gestured to his friend with a raven's head. “And that's—”
“I can introduce myself, you know.” The boy interrupted as he stood beside Izuku and held out his hand. “I'm Fumikage Tokoyami.”
Momo shook his hand and then looked sheepish. “I apologize for that. I need to eat high-fat foods for my quirk to work properly.”
Izuku's analytical mind, which focused on quirks and the bodies of people who possessed them, wandered as he took in Momo's form. Her obese and fatty body, coupled with her large breasts and fat ass, could suggest that she had an emitter quirk of some kind. Something related to the immense fat stored in her body. Besides that, he thought of how beautiful Momo was with her blubbery figure, making her clothing strain and ready to burst if she bent over. It looked like her ass and breasts would spill out of her restraints.
Momo could feel the looks Izuku gave her and snapped her fingers in front of his face. “Hello! Excuse me! You're staring, and it's making me uncomfortable.”
Izuku blushed and apologized profusely, bowing repeatedly with sweat beading down his face. “Sorrythatwasrudeofmetodobuticanthelpbutthinkyoumayneedhelpwithmakingiteasiertouseyourquirkifyouneedtokeepyourbodyfat!”
“Izuku, you're scaring her.”
Momo waved off the raven-haired teen. “Don't worry about it. I understood what he was saying.”
Fumikage had a surprised look on his face while Izuku calmed down. “Wait, seriously? You could understand what I was saying?”
“Yep. A life like mine helps me understand people who babble. Anyway, I would be thankful for your help, as it seems that you move around quite well for someone with your condition. Well, being someone of your physique.”
Izuku rubbed the back of his head at that, chuckling lightly. “You might as well just say ‘fat’ or ‘obese’, not exactly an insult to me, as I am comfortable with my body, and it helps with the sort of training I do.”
“Really? Well, would you be able to help me out then? See, I'm training for the U.A. Entrance—”
“Oh, sweet! Us too!” Izuku interrupted before apologizing again. “What's your quirk anyway if it requires high amounts of fat stored?”
Momo looked a bit embarrassed at having to share. “My quirk is called ‘Creation’. It allows me to make any material or object as long as I know the chemical makeup and how it's made. To make them, I use lipids, fat stored in my body, and require that I show a certain amount of skin to make something.”
Both Fumikage and Izuku nodded their heads slowly as they understood Momo's issue. They presumed that she was otherwise fit before, but now that she's trying out for the U.A. Entrance Exam, she's going to need to use her quirk, which requires fat even to use.
“So, I'm assuming since your quirk needs fat to make, you're trying to gain as much weight as possible while still being able to move, that way you can create as much as you want while still having enough fat stored in your body for later use. Not wanting to use everything in your body at once.” Izuku concluded.
Momo looked dumbfounded. Izuku understood EXACTLY what she was looking for. Train her body to be able to move like others do while being fat. “Y-yeah! That's exactly what I am trying to do.”
Fumikage smirked. “You're lucky you got Izuku here. With how much training he goes through, he's the perfect workout partner.”
Momo looked between them and asked, “What are your quirks anyway?”
Fumikage’s answer came from Dark Shadow manifesting and showing off his talons, while Izuku's answer was broad and simple. “I'm Quirkless.”
Momo was a bit concerned about Izuku helping her train since he was quirkless, but they reassured her that it was okay and that Izuku knew what he was doing, as evidenced by his frame.
Not wanting to deny help or be rude in any way, Momo followed Izuku and allowed him to show her how to build up her body correctly.
Cardio was a definite must. Being a hero who could get anywhere without getting tired, even with a bit of light running, is the bare minimum of what's needed. Izuku joined Momo on the treadmills, keeping his own pace and encouraging her to keep up.
At first, it was a leisurely walk, but then it transitioned into a jog and eventually turned into light running. Izuku suggested listening to cadences or music while doing cardio, as it helped keep one energized.
Momo knew the importance of being able to get around easily, whether it was to chase a villain or evacuate civilians from a destroyed area or a fire, so she took it seriously and pushed herself.
For the next thirty minutes, Izuku and Momo jogged and ran, alternating between the two. The two of them kept their eyes forward, doing their best to respect their partners' bodies in motion. Momo tried to avoid glancing down, Izuku's big, heavy ass bouncing and sloshing violently with every step, the vast, round orbs emphasized by the tight yoga pants he wore. Izuku was in a similar yet more difficult situation. While Momo's rear end was behaving just like his own, it was her gargantuan breasts that were the issue. The twin wrecking balls bounced and slammed against each other and her stomach, threatening to pop out of her top, slick with an alluring level of sweat.
The following workout was weighted squats. Izuku emphasized that this workout builds your glutes and makes them appear rounder and fuller. He grabbed his butt, hands sinking it a little, and told Momo that while his body looked fatty, it was compacted with some muscle distributed along his body, making him soft but durable. They also build essential muscles in the legs, which, like cardio, was very helpful for them and other heavyweight heroes.
Izuku put on a weighted belt of around twenty pounds while Momo started with ten. It was essential to engage one's core and keep one's back straight, with feet firmly planted on the ground. Proper form was key.
Once again, Momo kept pace with Izuku's slow and steady stride. Lowering the body and pushing the butt out, and using their leg muscles to lift them back up, and repeating the exercise.
Izuku's backside stretched his yoga pants considerably, truly emphasizing the heft they possessed. Momo was in a similar situation, her large bottom, shiny with a layer of sweat, expanding as she went down, her shorts beginning to dig in between the enormous cheeks as she continued.
Izuku had been doing weight squats for a while, so his legs were strong. He was impressed with the drive Momo had to do better. He could tell that she wished to be the best she could be.
Bench presses were the next exercise, which was self-explanatory. Gotta lift rubble and be able to carry others.
As Momo was a beginner, Izuku offered to spot her, which she appreciated. As the black haired girl brought the bar down, she took care not to bring it down into her chest, her breasts making things slightly awkward and challenging. Speaking of, she tried to get Izuku's body out of her mind. She was painfully aware that his chunky midsection was looming above her face, not to mention the fact that his prominent manhood was close as well.
And the last two bits were stretches and a talk about proper dieting for people like them. Eating a lot was vital for them to bulk up, particularly for Momo, but it was also crucial to still care for one's health. In this instance, a cheat day is implemented, and instead of eating non-essential foods, this kind of cheat day involves eating healthy foods rich in nutrients and vitamins to avoid crashing their body. Aside from the “healthy-eating” periods, one could binge a lot more than they could as long as they did the work to properly get their bodies to adjust to the hefty increase in size and weight.
After all the exercises, Momo thanked Izuku for everything and asked for his and Tokoyami’s numbers. The three teenagers exchanged their contact information and went their separate ways.
Fumikage, though, saw the look in Izuku's eyes and blushed as he watched Momo walk off, her body coated in sweat and her blubbery form squishing underneath her tight workout clothing. Not to mention her body bouncing and jiggling as she left.
The raven-headed boy snickered and bumped an elbow in Izuku's side and said, “Come on, lover boy,” before they headed out to home—Izuku's bottom half jiggling slightly like his new friend's own blubbery body.
The rest of their time before the entrance exam is going to be interesting.