Author's Note: This chapter is approximately 4,500+ words long. I hope you enjoy it!
They arrived at the beach twenty minutes later.
Ochako was waiting near their usual training spot, wearing a pink sports top and black shorts. Her hair was pulled back into a high ponytail that swung when she turned to greet them.
"Izuku kun! You're here!"
Momo stood beside her in an expensive-looking athletic outfit. Her black hair was tied back in a ponytail as she adjusted her water bottle.
Both girls froze mid-motion when they noticed the unfamiliar blonde walking at Izuku's side.
Ochako tilted her head curiously. "Izuku kun, who's she?"
"Oh, right," Izuku said as he stopped in front of them. "This is Himiko Toga. She's gonna be training with us from now on."
Himiko waved cheerfully with both hands. "Hi! Nice to meet you both!"
Momo studied Himiko closely, taking note of the oversized hoodie and the way the sweatpants hung loosely on her thin frame.
"Izuku kun, could you introduce your... companion properly?"
"Toga san has a Quirk that needs urgent training," Izuku explained with a vague gesture. "She'll be staying at my place temporarily while I work with her on developing better control."
He carefully left out the part about the knife attack in the alley. Some details were better left unmentioned.
Ochako smiled warmly at Himiko. "That's really sweet of you, Izuku kun. Welcome to the group, Toga san!"
"Thanks, Ochako chan!" Himiko replied with enthusiasm that felt a little too intense.
Before anyone could say anything else, Himiko latched onto Izuku's arm and pressed herself against him with zero respect for personal space.
"Izuku kun is such a good person," she murmured while rubbing against his shoulder. "He saved me after I tried to stab him in an alley!"
Ochako blinked several times. "...What?"
Momo thought she had misheard.
"I'm sorry, could you repeat the part about the stabbing?"
Izuku put his hand to his face with a resigned sigh. "Toga san, context. You've gotta give people CONTEXT before dropping information like that."
"But it's true!" Himiko protested, still clinging to his arm. "I attacked him with my knife because I wanted his blood, and instead of running or calling the cops, he offered to help me with my addiction!"
She said it with the same cheerful tone someone would use to describe a nice afternoon walk.
Ochako's expression shifted from confusion to concern. "Blood addiction? Toga san, are you...?"
"My Quirk needs blood to work," Himiko explained matter of factly. "I need it to transform into other people. But Izuku kun says he can help me reduce how much I need!"
Momo processed this information carefully. "A transformation Quirk with hemophagic requirements. Fascinating from a biochemical perspective, though concerning from a psychological standpoint."
"She's gonna get better," Izuku cut in quickly as he gently peeled Himiko off his arm. "We're implementing a treatment protocol based on diet and exercise, supplemented with breathing techniques."
"And regular groping sessions from Izuku kun!" Himiko added with bright eyes.
Ochako's face turned slightly pink. "G-groping?"
Oh no, Izuku thought with mounting dread. Here we go.
"Anyway!" he said loudly, clapping his hands together. "We should get started with training. I've got a few tests I wanna run today."
He pulled out his notebook and flipped to a clean page.
"Uraraka san, Yaoyorozu san, I need you both to use your Quirks without me touching you. I wanna see what changed after the boosts during hero training."
Momo straightened with interest. "You're testing whether there are permanent modifications to our Quirk parameters."
"Exactly," Izuku confirmed. "The fight against Bakugo and Iida showed that Uraraka san developed new abilities while boosted. I wanna see if those abilities stuck."
Ochako looked at her hands uncertainly. "You really think something changed permanently?"
"Only one way to find out," Izuku replied with a confident smile. "Let's start simple. Uraraka san, see that pile of rocks over there?"
He pointed toward a collection of beach debris they'd been using for training exercises.
"Float them the way you normally would."
Ochako nodded and walked over to the rocks. She rested her five extended fingers on the surface of the biggest one.
The rock lifted smoothly into the air without any visible effort.
"Okay, that worked," she said, maintaining her focus. "What's next?"
Izuku scribbled notes in his notebook. "Now try this. Don't touch the next rock. Just... focus on making it float from where you're standing."
Ochako's eyes widened. "Without touching it? Izuku kun, my Quirk doesn't work that way."
"It didn't before," Izuku corrected gently. "But things might've changed. Just try it."
Ochako bit her lower lip with nervous energy before extending her hand toward another rock a few meters away. She stared at it with intense concentration, her brow furrowing as sweat started to form on her forehead.
Nothing happened for several long seconds.
Then, slowly, the rock began to tremble.
"It's... it's moving!" Ochako gasped.
The rock rose a few centimeters off the sand, wobbling unsteadily in the air.
Ochako's face turned red from the effort of maintaining her concentration, and her hand shook as she tried to hold the rock aloft.
"I'm doing it!" she said in disbelief. "I'm really doing it without..."
Suddenly her face went pale. She clapped her other hand over her mouth and spun around sharply.
"Ugh... I'm gonna..."
She ran several steps toward the ocean before doubling over and vomiting into the sand with violent heaves.
Izuku was already moving, pulling a water bottle out of his bag as he jogged toward her. He placed a gentle hand on her back while she emptied her stomach.
"Easy, Uraraka san," he murmured while rubbing small circles on her back. "You did great, just breathe."
Ochako spat a couple of times before accepting the water bottle with trembling hands. She rinsed her mouth and spat again before taking a small sip.
"That was... horrible," she managed between ragged breaths. "Way worse than normal nausea."
"That makes sense," Izuku said, continuing to rub her back with soothing movements. "You just used a completely new application of your Quirk. Your body isn't used to that kind of strain yet."
But she did it, he thought with barely contained excitement. She activated Zero Gravity without physical contact. That's a revolutionary evolution of her Quirk's activation parameters.
He helped Ochako back to where Momo and Himiko were waiting. Momo wore a concerned expression, while Himiko looked delighted by the entire scene.
"Ochako chan threw up!" Himiko observed. "Does that mean she's getting stronger?"
"In a way, yes," Izuku confirmed while guiding Ochako to sit on a large rock. "She just unlocked remote activation of her Quirk. The nausea is a side effect of using an unfamiliar pathway."
Momo's eyes lit up with understanding. "The boost effect created new connections in her brain, allowing her to activate Zero Gravity through focused intention rather than just physical contact."
"Exactly," Izuku said while writing quickly in his notebook. "Though the activation range seems limited and the energy cost is way higher than normal."
Ochako took another sip of water as she processed what had just happened. "So now I can make things float without touching them? That's... that's incredible!"
"It needs practice," Izuku warned. "You almost passed out lifting one rock, but the ability's there."
He flipped to a new page in his notebook and kept writing observations.
"Let's try something else while you recover. Uraraka san, can you float multiple objects at once using the normal method?"
Ochako stood up on slightly shaky legs and returned to the pile of debris. This time she touched five different rocks in quick succession, activating her Quirk on each one.
All five rocks rose into the air simultaneously, floating at different heights around her.
"That's at least a little over three tons of combined weight," Izuku muttered while doing mental calculations. "Before, your max was around three tons total. These rocks together are definitely heavier than your old limit."
Ochako looked at the floating rocks with growing amazement. "I'm not feeling any strain at all. It's like they weigh nothing."
Before she was at 3.1 tons, Izuku thought as he jotted down numbers. Now she's handling a bit more than that with no signs of nausea. A significant increase in her load capacity.
"One more test," Izuku said while pointing at the largest floating rock. "Remember what you did to Iida during the fight? When you crushed him with debris?"
Ochako's expression turned thoughtful. "I made the debris heavier somehow."
"Try it again," Izuku encouraged. "Pick a rock and increase its weight."
Ochako focused on the biggest rock floating above the sand. She pressed her palms together and then pushed them down in a slow motion.
BOOM
Suddenly the rock dropped and buried itself several centimeters into the sand with a heavy crash that kicked up a small cloud of dust.
"I did it!" Ochako exclaimed, staring at her hands in awe. "It felt different than normal, but I really made it heavier!"
The effect is weaker than when she was boosted, Izuku noted mentally. But it's permanent and she can access it without me touching her.
He closed his notebook with satisfaction. "Uraraka san, your Quirk evolved. You went from simple gravity cancellation to actual gravitational manipulation."
Momo had been watching the entire demonstration with intense focus. "The implications are astounding. If Uraraka san can increase weight in addition to decreasing it, she could use her Quirk offensively by making enemies too heavy to move."
"Or crush them under boosted debris the way she did to Iida," Izuku added with a slight smile. "Though that's probably more brutal than necessary for most situations."
Ochako released her Quirk by bringing her fingertips together. All the floating rocks dropped back to the sand in a scattered pile.
"My turn?" Momo asked, stepping forward with calm confidence.
"Your turn," Izuku confirmed. "Let's see what stuck from your boost."
Izuku pulled out a stopwatch he'd brought specifically for this test and activated it.
Momo activated her Quirk without hesitation. Her exposed skin glowed with a soft light as lipids converted into matter. A tactical baton materialized in her hand within seconds, fully formed and ready to use.
Izuku stopped the stopwatch. "How long does it normally take you to create that?"
"Around thirty seconds for an object of this complexity," Momo answered, examining the baton with critical eyes. "Why?"
"Because you just did it in twenty," Izuku said, showing her the stopwatch display. "That's a huge improvement in creation speed."
Momo's eyebrows lifted slightly. "Were there any other changes?"
"Let's find out," Izuku replied while flipping to the section of his notebook dedicated to analyzing Momo's Quirk. "I want you to try creating something organic. Focus on something simple."
Momo's expression turned skeptical. "Midoriya kun, I can't create organic matter. My Quirk is limited to inorganic materials and simple polymers. What happened that day was an exception because... well, you know why."
"It was limited to that," Izuku corrected. "But your manual showed latent potential for organic synthesis when I boosted you. I wanna see if that potential is still accessible."
"And if it isn't?" Momo asked, a hint of hesitation slipping into her voice.
Izuku grinned mischievously. "Then I guess I'll have to give you another breast massage to help you out."
Momo's face turned bright red. "That's completely unnecessary and highly inappropriate!"
"Then you'd better try really hard to make it work on your own," Izuku teased while making the gesture of cracking his knuckles.
Momo sputtered indignantly for a moment before collecting herself with visible effort. "Fine. I'll try. But only to prove that such... physical intervention... is unnecessary."
She closed her eyes and took several deep breaths to center herself. Her right arm began to glow more intensely than before as she concentrated on the molecular structure she wanted to create.
The seconds passed in tense silence.
Then, slowly, something emerged from her forearm. A small red object grew out of her skin in a process that was vaguely unsettling to watch.
When the glow faded, Momo was holding a perfectly formed apple.
She stared at it with wide eyes. "This is... I made an apple."
"You created organic matter," Izuku corrected with barely contained excitement. "That's supposed to be impossible for your Quirk."
Momo turned the apple over in her hands, examining it from every angle with poorly concealed scientific excitement. "The cellular structure appears intact. The skin has the correct texture and pigmentation. This is a functional apple."
Izuku took it from her hands and studied it for a moment, noting the realistic appearance and weight.
Then, as Momo watched in horror, he took a big bite out of it.
"Mmm," he said while chewing. "Tastes good."
"Izuku kun!" Momo shrieked while grabbing his arm. "That could have been poisonous! What if I accidentally created toxic compounds instead of edible fruit?!"
Izuku swallowed the bite and shrugged. "Did you put poison in it?"
"Of course not!"
"Then no problem," he said before taking another bite.
Himiko, who had been watching the entire exchange with predatory interest, suddenly lunged forward and snatched the apple out of Izuku's hand. She sank her sharp teeth into it and chewed with exaggerated enthusiasm.
"Not as good as blood," she declared after swallowing, "but still pretty tasty! Momo chan, can you make more?"
Momo looked like she was about to faint from embarrassment. "This is highly inappropriate behavior! That apple was for scientific analysis, not casual consumption!"
"It's also proof that your Quirk evolved," Izuku cut in while taking notes. "You created functional organic matter without active boosting. The structure is imperfect compared to what you could do while I was touching you, but it's there."
He tapped his pen against the notebook thoughtfully. "With practice, you could create things like wooden shields or natural fiber ropes. Given more time, even organic explosives would come within your reach. All of that without my intervention. Plus, you might even get to..."
"Biological weapons," Himiko added helpfully.
"That wasn't what I was gonna say," Izuku replied with a look of mild concern. "But maybe I could."
Momo seemed to be processing the implications at high speed. Her analytical mind was already running through tactical applications for organic matter creation.
"The caloric cost was significantly higher than normal," she said while pressing a hand to her stomach. "I can feel the energy expenditure. Creating that single apple consumed as many lipids as manufacturing three metal batons."
"Makes sense," Izuku agreed. "Organic molecules are more complex than simple metals. Your Quirk has to work harder to organize carbon chains and biological structures."
He snapped his notebook shut with finality. "But the ability exists, and that's the important part."
Momo nodded slowly, still looking a bit dazed by the revelation. "I'll need to study organic chemistry more intensively if I want to expand this ability."
"That's the Yaoyorozu I know," Izuku said with an approving smile. "Always looking for ways to improve through research and practice."
He turned to look at Himiko, who had been bouncing on her heels with poorly contained energy throughout the demonstration.
"Toga san, your turn."
Himiko's eyes lit up like fireworks. "Finally! I've been waiting forever!"
She launched herself at Izuku with her usual complete disregard for personal space. "What do I have to do, Izuku kun? Should I drink your blood? Or do you wanna drink mine?"
"Neither," Izuku said while pulling out his notebook once again. "First I need to boost you so I can read your full manual. Then we'll figure out what you're capable of."
He glanced toward Ochako and Momo, who were watching with undisguised curiosity.
"Uh, you two? Maybe look the other way for a minute."
Ochako's face turned pink. "Why would we have to look the other way?"
"Because I'm about to touch Toga san's butt," Izuku explained. "You already know how the process works."
"Her WHAT?" Ochako squeaked while blushing intensely.
Himiko shifted her hips in anticipation. "I'm ready, Izuku kun! Touch me wherever you want!"
Forgive me, Toga san, Izuku thought with fake solemnity. Science demands sacrifices.
He placed both hands firmly on Himiko's butt and squeezed with deliberate pressure.
"Hmmm..."
Himiko let out a soft gasp, and her cheeks turned bright red as a wide smile spread across her face.
"Ngh... Izuku kun's hands are so warm..."
Information flooded Izuku's mind with the familiar torrent of data that came with every boost activation.
[TRANSFORMATION — HIMIKO TOGA] [BOOST MODE ACTIVE] [BLOOD MIMICRY → ENHANCED] [QUIRK REPLICATION WITHOUT TRANSFORMATION → ACCESSIBLE] [PARTIAL TRANSFORMATION MASTERY → UNLOCKED]
Izuku's eyes widened as he processed the new information. "Holy crap."
"What's wrong?" Momo asked, trying her hardest not to look at where Izuku's hands were positioned.
"Toga san can copy Quirks without needing to transform," Izuku said with barely contained excitement. "Real Quirks."
Himiko spun around to face him, forcing his hands to slide off her body. "Seriously?! I can copy Quirks now?!"
"According to your manual, yes," Izuku confirmed while pulling out his notebook with his now free hands. "When you drink someone's blood, you should be able to access a partial version of their Quirk."
Himiko's pupils dilated. "That's amazing! I could be you, Izuku kun, and have your Quirk! Or turn into Ochako chan to float around... even Momo chan to create things with my own skin."
She grabbed Izuku's shoulders with trembling excitement. "Izuku kun... if I can copy Quirks with blood..."
Her smile turned mischievous and slightly unhinged. "What happens if I try to boost YOU?"
Izuku froze as the implication hit him.
I never thought about it that way, he realized with growing surprise. My Quirk reads and enhances other Quirks. But what would happen if someone with an enhancement type Quirk tried to enhance me?
"That's..." he began, then paused. "That's actually a really interesting question."
Himiko was already pulling her knife from her waist. "Let's find out!"
Of course she brought the knife, Izuku thought with resignation. She came prepared for blood extraction.
"All right," he said while extending his hand. "Just a small cut. Nothing deep."
"I'll be gentle," Himiko promised while holding his index finger with surprising care.
She made a quick, precise cut into his fingertip. Blood welled up immediately, a bright red drop catching the sunlight.
For a moment, Izuku expected Himiko to take some of his blood, since drinking blood and copying appearances was what her Quirk did, right?
Instead, Himiko did something that made both Ochako and Momo gasp in scandalized unison.
She brought Izuku's bleeding finger to her lips and closed them around it in a slow, sensual movement. Her tongue slid along the cut as she sucked gently, drawing the blood into her mouth.
Her yellow eyes stayed locked on Izuku's green ones the whole time.
"T-Toga san!" Ochako stammered while covering her mouth. "That's way too lewd!"
Momo had turned completely away, her face burning red. "This is completely inappropriate! There are established protocols for blood sample collection that don't involve oral contact!"
Izuku, to his credit, maintained eye contact with Himiko without flinching, his expression staying calm even as his erection threatened to wake up.
PLOP
Finally Himiko released his finger with a soft sound. She licked her lips slowly as she savored the taste.
"Delicious," she murmured. "Izuku kun's blood tastes way too good."
"Did it work?" Izuku asked while rubbing his finger. "Can you feel anything different?"
Himiko closed her eyes and concentrated for a moment. Then she shook her head with a slight frown.
"Nothing... I don't feel any new power. Nothing came."
But then Himiko's expression shifted from disappointed to absolutely predatory.
"But you know what?" she said while stepping closer to him. "If drinking your blood didn't let me boost you..."
She grabbed the front of his shirt with both hands. "Maybe I need more direct contact to make it work."
Before Izuku could process what was happening, Himiko pulled him down and pressed her lips against his in a fierce, hungry kiss.
His brain stalled for a moment, then instinct took over.
Screw it, he thought as his hands moved to her waist.
He returned the kiss with equal intensity, his fingers digging into the fabric of her hoodie. Himiko made a satisfied sound against his mouth and pressed herself fully against him.
Somewhere in the background, Ochako was making muffled sounds of mortification.
Apparently Momo had given up on maintaining her dignity and was simply staring open-mouthed.
But Izuku barely registered any of it because something was happening.
Information flooded his mind, but not in the usual way. Instead of reading someone else's Quirk manual, he was suddenly seeing his OWN manual for the first time.
[TRAIN — IZUKU MIDORIYA] [BOOST ACTIVATED] [SYMBIOTIC NETWORK ESTABLISHED]
The data came in waves that threatened to overwhelm his consciousness.
[ABSORBED TRAITS — ACTIVE]
[FROM MOMO YAOYOROZU:] CELLULAR REGENERATION (ENHANCED): Minor wounds heal three times faster than normal. Scales with Yaoyorozu's Creation efficiency.
[FROM OCHAKO URARAKA:] BALANCE (ENHANCED): Perfect balance regardless of surface or momentum. Resistant to disorientation effects.
[FROM HIMIKO TOGA:] COMBAT PATTERN RECOGNITION (ENHANCED): Can observe and memorize combat techniques. Potential for predictive combat analysis.
[FROM INKO MIDORIYA:] CONTROL (ENHANCED): Conscious manipulation of muscle tension and blood flow. — Speed burst: 40% speed increase for 2 seconds. — Focused strength: 30% strength increase in a single limb for 5 seconds. — Localized hardening: Temporary increase in durability in a specific area of the body.
[CRITICAL DISCOVERY: These traits SCALE with the growth of the source individual. Stronger sources = stronger absorbed traits. Maximum of 8 trait slots available.]
Holy shit, Izuku thought as understanding hit him. My Quirk lets me absorb derived abilities from everyone I boost.
He pulled away from the kiss, breathing heavily, his eyes wide with comprehension.
"Toga san," he said while still holding her waist. "You just gave me the missing piece."
"Ah... ah... ah... Did it work?" Himiko asked breathlessly. "Did I boost you?"
"You activated something better," Izuku replied with a manic smile. "You showed me how my Quirk actually works."
He kissed her again, this time with a gratitude that flooded through him completely, and Himiko melted into the kiss with a satisfied purr.
Without this girl with her gorgeous legs, he thought while sliding his hands down her back, I'd never have figured out that my Quirk doesn't just boost others... it boosts me through them.
When they finally separated, Himiko's pupils had a predatory gleam. She looked like she was about to faint from happiness.
"Izuku kun," she whispered with trembling joy, "does that mean we're dating now?"
"Let's save that conversation for later," Izuku said while gently freeing himself from her grip.
He turned to look at Ochako and Momo, both of them staring at him with expressions of complete bewilderment.
"So," Ochako said slowly, "Izuku kun gets stronger when we get stronger?"
"It's a symbiotic relationship," Momo added as her analytical brain kicked back into gear. "You boost our Quirks, which creates a permanent bioenergetic bond that grants you derived abilities that scale with our growth."
"Exactly," Izuku confirmed. "Though the kiss was probably unnecessary for the discovery."
"It was ABSOLUTELY necessary," Himiko countered while hugging his arm possessively. "Don't say silly things, Izuku kun... It was the best part of the whole plan! How else would you have figured it out?"
Good point, Izuku admitted internally.
He sat down on a nearby rock and pulled out his notebook for what felt like the hundredth time that morning.
Okay, let's think this through logically, he thought while organizing his observations. Ochako can lift more weight than before without me touching her, Momo created an organic apple, and the improvements are permanent.
He looked at Himiko, who was trying to meditate like he'd instructed her to but kept opening one eye to peek at him.
If every time I boost them I permanently unlock something new, then the limit isn't how much I can improve them once. It's how many times I can do it before they become unstoppable... or whether that actually happens every time I boost them. Could be an isolated occurrence.
He scratched the back of his neck with a dawning realization.
Which means technically my job is to turn these girls into heroic monsters. And all I gotta do is... touch boobs repeatedly.
He sighed audibly.
Mom's definitely gonna laugh at me when I explain this.
"Okay, I've got good news and bad news," he announced to the group.
Ochako looked up from where she was practicing remote gravity activation on small stones. "What's the good news?"
"The improvements are permanent. Every time I boost you, you unlock something new that stays even without my contact."
Momo coughed slightly while blushing. "And... the bad news?"
Izuku scratched his cheek with mild awkwardness. "To keep unlocking new abilities, we're gonna have to do this regularly. Which means training sessions where I'll have to... you know."
He gestured vaguely toward Momo's generous chest.
Why did I use her as an example?, he thought with internal amusement. Oh right, because her breasts are absolutely perfect.
Himiko's hand shot up with eager energy. "I volunteer!"
Ochako's face turned pink. "Toga san, that's not how volunteering works!"
"Why not?" Himiko asked with confusion. "Izuku kun needs to touch people to make them stronger. I wanna be stronger. It's logical!"
"It's..." Ochako began, and then she stopped. "It's just that... I mean..."
She really couldn't find a counterargument that made any sense.
Momo cleared her throat diplomatically. "While Toga san's logic is sound from a tactical standpoint, we should probably establish some protocols for these training sessions. Clear limits and consent forms... maybe even a chaperone present."
"A chaperone?" Izuku repeated while arching an eyebrow. "Yaoyorozu san, we're not doing anything illegal."
"Morally questionable at minimum," Momo replied seriously.
"But there's nothing wrong with it," Ochako added quietly.
Everyone turned to look at her.
She toyed with the hem of her sports top. "I mean... Izuku kun helped me unlock abilities I never knew I had. If regular training sessions mean we'll keep getting stronger... plus, I was already training with Izuku kun, so I'm not uncomfortable with him..."
She trailed off, but the implication hung in the air.
Izuku stood up and stretched his arms over his head with a satisfied grunt. "Then it's settled. Weekly training sessions for everyone. We'll work together on developing your new abilities and see what else we can unlock."
His gaze moved from Ochako with her newly enhanced gravity manipulation to Momo whose organic creation was just awakening. When it landed on Himiko, he thought about the potential for replicating Quirks she hadn't even begun to explore.
"Let's see how far we can take this," he said with quiet determination. "Together."
Himiko cheered and immediately tackled him into a hug that knocked him flat on his back in the sand.
Ochako laughed at the scene while Momo shook her head in exasperation.
And somewhere in a corner of his mind, Izuku was already planning the next steps.
This is just the beginning, he thought while Himiko nuzzled against his chest like an affectionate cat. The real question is: how strong can we get if we keep moving forward together?
He didn't have an answer yet.
But he was looking forward to finding out.
*********
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