Sisterly Interference

Tatsumaki hovered high above the vast wasteland, her emerald eyes scanning the barren expanse of cracked earth that stretched endlessly toward the horizon. The desolate landscape was nothing but rocks, dust, and the occasional withered shrub. But all of that was perfect for what she had in mind. No annoying civilians to whine about property damage and most importantly no incompetent weaklings getting in her way.

Not that such thoughts mattered when there was a colossal monster lumbering directly toward B-City like some oversized, brain-dead turtle.

The creature was massive, easily the size of a small stadium, with a shell composed entirely of jagged rocks and crystals that seemed to absorb sunlight as they were glowing. Its thunderous footsteps shook the ground with each step, leaving craters in its wake.

Remarkably, the stupid thing hadn't noticed her yet. Most monsters would have sensed her overwhelming psychic presence by now and either fled in terror or charged at her in a futile rage. But this one seemed too focused on its single-minded goal of reaching the city.

‘Typical. Even the monsters are getting dumber these days.’

Tatsumaki pulled out her phone with an irritated sigh, already knowing she'd regret contacting the Hero Association's so-called coordination center. "This is Tatsumaki. I've got visual of the monster approaching B-City. Where are all the other so-called heroes who should handle something this simple?"

The response crackled through immediately, tinged with obvious relief. "Tatsumaki, thank goodness! We've been trying to coordinate a response, but the association ranked this a Dragon-level threat. The other S-Class heroes are currently—"

"Dragon-level?" Tatsumaki cut them off with a derisive snort, glancing down at the lumbering beast with obvious disdain. "Are you people completely blind? This thing can barely walk in a straight line." She paused, her irritation mounting. "Let me guess; everyone else is conveniently busy with 'more important matters,' right?"

"Well, actually, King is dealing with a situation in M-City, and Atomic Samurai is—"

"Excuses." Tatsumaki's voice turned cold with contempt. "You people always have excuses when you can't handle your jobs properly." She clicked off the communicator and shoved it back into her dress.

"Fine. I'll clean up your mess. Again."

She extended both hands toward the massive creature, her psychic aura flaring to life around her like green fire. The familiar surge of power coursed through her body as she focused her abilities on the monster's rocky exterior, intending to simply crush it where it stood and be done with this affair.

The creature's shell groaned and cracked under the immense psychic pressure, fissures spreading across its surface like a spiderweb. But despite the obvious damage, it remained stubbornly intact, continuing its slow march toward the city.

Tatsumaki's eyebrow twitched in annoyance. "Seriously?"

She lowered herself closer to the battlefield; her dress billowing around her. And that was the moment when the monster finally noticed her presence, its massive head swiveling upward to reveal glowing red eyes and a mouth full of jagged stone teeth. It let out what could generously be called a roar, though it sounded more like rocks grinding together in a cement mixer.

"Trying to be scary?," she muttered, rolling her eyes at the pathetic display.

This time, instead of trying to crush the creature outright, Tatsumaki wrapped her psychic energy around its entire massive form and lifted. The monster's feet left the ground with surprising ease, its limbs flailing helplessly as it found itself suspended in midair.

With a casual gesture, she flipped the creature completely over and slammed it down hard on its back. The impact created a thunderous crash that echoed across the wasteland, sending up clouds of dust and debris. The monster's legs kicked frantically at the air as it struggled uselessly to right itself.

"Now stay put while I finish this."

She raised both hands again, this time pulling massive chunks of rocks from the surrounding landscape. The debris swirled around her in a controlled tornado, pieces of stone and crystalline formations spinning faster and faster until they began to fuse together. The swirling mass condensed into a single, enormous projectile—sharp as a spear and easily the size of a skyscraper, with a point that gleamed wickedly in the sunlight.

Tatsumaki lifted the massive weapon high above the land, positioning it directly over the monster's exposed underside where the shell would be softest. The fall would generate more than enough force to pierce straight through and end this tedious encounter. She had far more important things to do than waste time on oversized turtles, and there were undoubtedly more messes created by incompetent fools that would need her immediate attention.

Just as she prepared to throw her weapon and finish this pathetic excuse for a Dragon-level threat, a sudden and intense sensation shot through her body like lightning.

"Ah?!" 

The unexpected feeling hit her stomach first—warm, tingling, and completely foreign. Her hand flew instinctively to her stomach as something strange and heated spread through her entire body, making her feel oddly flushed and... bothered.

Her concentration wavered for a split second, and she had to quickly refocus her psychic grip to catch the massive projectile before it could fall prematurely and ruin her perfectly calculated attack.

"What was that?" She frowned, still feeling lingering traces of that bizarre sensation coursing through her body. The feeling was definitely coming from the psychic link she shared with her little sister; a connection to keep her safe, not... whatever this was. It was like someone had just... but that was impossible. 

No, maybe it was just the thin air at this altitude or some pesky insect disrupting her concentration.

She shook her head vigorously and redirected her attention to the helpless monster below. With a sharp gesture, she released the formation. It plummeted through the air with devastating force, piercing straight through the creature's exposed underside with a sickening crunch. The monster's roars cut off abruptly as it went limp.

"Finally," she muttered, brushing her hands together with satisfaction. "About time something went according to plan today."

She pulled out her phone and dialed the Hero Association's. "This is Tatsumaki. Dragon-level threat eliminated. Send your janitors to clean up the mess."

She clicked off the communicator before they could respond and shoved it back into her dress.

Without another glance at the scene she launched herself into the sky and flew off toward the next crisis that would require her intervention.

--------------------------------------

Hours later, Tatsumaki was conducting a routine patrol over I-City when an explosion suddenly erupted from below, sending a pillar of flame and smoke high into the air. Car alarms began blaring throughout the district as the shockwave rattled windows and sent civilians screaming and scrambling for cover.

"Perfect. Just perfect," she muttered, already knowing this would be another mess she'd have to clean up herself.

Tatsumaki dove straight toward the source of the explosion, her eyes scanning the chaos below for whatever pathetic creature was responsible. As she drew closer, she could make out the responsible and immediately regretted looking.

"Seriously?" She landed on a nearby rooftop and stared in disbelief at the ridiculous sight below. "A giant teddy bear? You've got to be kidding me."

The monster was easily three stories tall, covered in what appeared to be bright pink fur that was now singed and smoking from its own attacks. Its button eyes glowed with strong red light, and its oversized paws ended in razor-sharp claws that left deep gouges in the pavement. And for the final touch was its permanent stitched smile, which somehow managed to look both innocent and utterly psychotic.

Monsters simply didn't make sense; it was true what they said about anything being able to become a monster, no matter how ridiculous. But ridiculous didn't mean harmless.

The creature also showed some intelligence, deliberately targeting fleeing civilians with explosive blasts while letting out what sounded like cheerful giggling. It wasn't going straight for kills, though—instead, it seemed to herd people, cornering them just to watch them panic before moving on to terrorize someone else. The sadistic thing was actually enjoying the fear it was causing.

Despite its absurd appearance, the destruction was very real. A building had already caught fire, the street was littered with debris and overturned vehicles, and she could see at least a dozen injured civilians who hadn't been fast enough.

Tatsumaki looked around for any sign if other heroes had done at least something, but the area appeared to be completely devoid of them. She let out an exasperated sigh and prepared to descend into the chaos.

Typical.

"Hey! It’s a S-rank hero!" Someone shouted from the street below.

And just like that, instead of continuing to flee like sensible people, more civilians stopped running and began pointing up at her with obvious excitement. Some even started taking pictures with their phones, because apparently taking a picture was more important than their lives.

‘Idiots. Complete idiots, the lot of them.’

Tatsumaki scowled but decided to ignore the civilians' calls and cheers. Having panicked bystanders gawking in the area would only make this more complicated than it needed to be, which meant she had to end this quickly.

She flew closer to the ground, positioning herself directly above the monster. With a simple gesture, she wrapped her telekinetic grip around the creature's entire form, lifting it off the ground before it could cause any more destruction.

"Party's over, you overgrown toy," she said coldly, beginning to close her fist to crush it.

The teddy bear struggled frantically, its claws swiping uselessly at empty air while that creepy stitched smile remained frozen in place. She could feel its internal structure beginning to crack under the pressure, piece by piece, when—

"Wha-Ahh!?" 

The unexpected warm jolt caused her to yelp much louder than intended, and both her hands flew instinctively to cover her mouth as heat flooded her cheeks.

Then came another wave, making her shudder with a pleasant sensation spreading over her body. She managed to muffle the sound this time, but the sensation was still overwhelming, making her entire body feel warm and tingly.

She fidgeted in the air and rubbed her tights together as she did her best to fight it off only to look down in horror as she unmistakably felt something trickle down her thighs.

And that was enough for her to snap back to realize that unlike earlier, she wasn't alone. She was floating in the middle of a crowded city with dozens of people staring directly at her.

The worst part was that everyone below; civilians, news crews that had apparently arrived, even some lower-ranked heroes who'd finally shown up, were all looking at her. Even the monster had stopped struggling and was tilting its oversized head at her.

And to make matters worse was that it didn't stop. It was persistent, overwhelming, and without any speck of doubt coming through the link with Fubuki. 

Which meant her little sister was currently engaged in... 

‘Oh, hell no. Hell no, hell no, HELL NO.’

‘The link feedback wasn’t even supposed to work like that!’

"ARE YOU KIDDING ME RIGHT NOW?!" she shouted at the top of her lungs, as the embarrassment and misguided pleasure was replaced by rage.

Regaining her focus she compressed the confused monster into something roughly the size of a golf ball before sending it flying and disappeared from sight.

The civilians below erupted into cheers, but Tatsumaki couldn’t care less.

Without another word to the crowd below, she launched herself into the sky at maximum speed, even feeling her psychic aura blazing around her like green fire as she headed directly toward Z-City. Because according to her link, that was exactly where her shameless little sister was currently... busy.

After what felt like an eternity, Tatsumaki finally reached Z-City's outskirts. She hovered in the air for a moment, trying to calm herself enough to focus on the link again. All those sensations had thankfully stopped, but there was still that lingering warmth coursing through her body that made her want to punch something.

Following the mental thread, she was surprised to find it leading toward Ghost Town—the abandoned section of Z-City that had been evacuated after repeated monster attacks. The area was nothing but empty buildings and destroyed streets.

‘Why the hell would Fubuki be in this dump?’ she wondered, her confusion only adding to her mounting irritation. ‘And what was she doing that caused... that?’

The link guided her to a particularly run-down six-story apartment building that looked like it had seen better times. Her first instinct was to simply tear the entire wall off to get inside, but she caught herself at the last second. If her troublesome sister was in there with someone, she didn't want to accidentally hurt her.

Even if said sister definitely deserved whatever was coming to her.

Instead, she floated around to one of the small balconies on what appeared to be the third floor and slid open the glass door with perhaps more force than strictly necessary. The door frame groaned in protest.

"FUBUKI!" she yelled as she pushed aside a faded curtain and stepped into the cramped apartment.

The scene that greeted her was not at all what she'd been expecting.

Her sister was sleeping soundly on a futon, still fully clothed in her usual black dress, looking completely peaceful and innocent. Her dark green hair was slightly mussed, and there was an oddly satisfied, almost blissful expression on her face that made Tatsumaki's eye twitch.

Meanwhile, seated cross-legged in front of an old television was an ordinary-looking bald man in a yellow tracksuit, completely absorbed in playing on the TV. The apartment itself was sparse and depressingly basic—just the bare essentials and nothing more. It looked like the kind of place someone would live if they'd given up on life entirely.

Wait. She definitely recognized this particular idiot.

"Oi, what's with all the noise..." he said in the most bored, disinterested tone imaginable, finally glancing over his shoulder with mild annoyance. His expression didn't change even slightly when he saw her floating there. "Oh, hey... uh... your little sister's here."

"WHO ARE YOU CALLING LITTLE, YOU DUMBASS BALDY?!" Tatsumaki shrieked, her small fists clenching as her psychic aura flared to life around her like green fire. "AND IT'S BIG SISTER! I'M THE BIG SISTER!"

The windows rattled ominously, several pieces of furniture shifted across the floor from the psychic pressure, and what appeared to be a potted cactus fell over with a sad little thud.

"Right, right, whatever," Saitama said with a dismissive wave, already turning back to his game. "Just keep it down though. Your sister's sleeping, and she seemed pretty tired."

"Don't you dare ignore me!" Tatsumaki stomped forward, her dress billowing dramatically as she landed with enough force to crack the cheap flooring. "What did you do to my sister, you perverted baldy?!"

Saitama paused his game and looked genuinely confused, tilting his bald head slightly. "Hah? Perverted? I just followed the instructions on that pamphlet she gave me." He shrugged as if this explained everything. "She said it was either that or join her group thing, and honestly, the group thing was way more work."

"What pamphlet?!" Tatsumaki demanded, floating closer with murderous intent crackling around her.

"The one with all the complicated pictures," he replied matter-of-factly, picking up a colorful brochure from the coffee table without even looking at her. "She was pretty specific about the whole thing. Kept pointing at different spots and telling me to press harder."

Tatsumaki snatched the pamphlet from his hands and immediately felt her face burn bright red. It was a massage therapy advertisement, complete with detailed illustrations of pressure points and techniques for stress relief and muscle tension.

"You... you gave her a massage?!" she sputtered, her voice cracking slightly.

"Yeah, I guess that's what it was called," Saitama shrugged, his attention already drifting back to his game where his character was apparently fighting a giant robot. "She kept making these weird noises and saying stuff like 'right there' and 'harder' and 'don't stop,' so I figured I was doing it right. Though it was kinda creeping me out." He paused thoughtfully. "Then she just passed out with this dopey smile on her face. Women sure are strange."

Tatsumaki's brain short-circuited for a moment as she processed this information. Her sister had been receiving a mediocre massage. And that was enough to pass out from….

"You..." she began, her voice dangerously low as she didn’t know what to feel at that point.

"Hmm? Tsunami, was it?" Saitama had already turned back to his game, clearly losing interest in the conversation as his character got smashed by the robot's giant fist. "Aw, come on. I was doing good that time."

"IT'S TATSUMAKI!" she exploded, her aura crackling with renewed fury as more furniture rattled around the apartment. "TATSUMAKI! TAT-SU-MA-KI! How hard is it to remember?!"

"Sure thing, Tempura," he said without looking away from the screen, where he was now selecting 'Continue'.

"ARE YOU DOING THAT ON PURPOSE?!" She shouted.

"Doing what?" Saitama finally glanced back at her with genuine confusion as he dug his ear. "And why are you so loud? Some of us are trying to relax here."

On the futon, Fubuki stirred slightly in her sleep, a small smile still playing at the corners of her mouth, completely oblivious to the situation.

Her hands were clenched into fists, and she could feel the overwhelming urge to grab this moronic baldy and launch him so far into orbit that he'd need a telescope just to see Earth.

‘Deep breaths. Deep breaths. Don't kill the idiot.’

With tremendous effort, she forced herself to calm down, crossing her arms.

"Fine," she said through gritted teeth, her voice deceptively calm. "I'm taking my sister and leaving this dump."

She decided to walk over to where Fubuki was sleeping peacefully, preparing to take her with her power, when another wave of irritation hit her. Turning back to Saitama, she pointed an accusing finger at his bald head.

"And YOU," she declared imperiously, "are going to make up for wasting my precious time, or I'll crush you into a pancake and use you as a doormat!"

Saitama groaned audibly, his shoulders slumping as he paused his game again. "Aw, come on. I didn't even do anything wrong. Your sister's the one who showed up here with that weird pamphlet thing."

"I don't want to hear your excuses!" Tatsumaki snapped, her patience finally reaching its limit. With a sharp gesture, she lifted his television into the air, holding it dangerously high above the floor and ready to crush it.

"Oi, oi, oi! Stop that!" Saitama suddenly became much more animated, actually standing up from the floor. "That's my TV! I just got it working again!"

"WELL?!" Tatsumaki yelled, making the television wobble threateningly in midair.

Saitama stared at his old TV for a moment, then let out the most defeated sigh she'd ever heard. He rubbed the back of his head with obvious resignation.

"Fine, fine. If it'll get you to leave and stop being such a brat, I'll give you a massage so you can shut up."

"WHAT DID YOU JUST CALL ME?!" 

She was going to turn him into a paste.

“Consecutive Ordinary pokes."

"E-Eh?" That was all what she could say as he moved in a flash, barely registering where he went, much less where he touched her. "Eeeh?"

There was no pain, no sensation at all. How was that even called a massage?

However, her legs suddenly started to wobble as if her bones had turned into jelly, and she had to hold on to the wall.

"Hey, hey, what did you-" she tried, but her mind suddenly went blank. Her body felt heated up at an alarming rate. It felt like...

'No way!'

She glanced down, and her face flushed at the sight of the small damp spot between her legs. The same trickle she'd felt earlier, only this time it was worse. It wasn't stopping!

"A-Ahh!" She moaned out loud as an even more intense jolt shot through her body enough to fall on her knees.

"Wha... wha..."

What was going on?!

Her thoughts were becoming scrambled, and the heat was unbearable.

"You... you..."

And that was the last straw for her body.

"AAAAAAAAAAAAAAAAHHHHH!" She threw her head back in a scream as her eyes rolled up.

Her hands flew to her groin as she was assaulted by wave after wave of pure unwanted pleasure. Her hips bucked wildly, and her legs kicked out on their own as the most intense orgasm of her life consumed every ounce of rational thought. She'd never felt anything like it before in her life, and the sheer intensity made her vision blur and her ears ring.

'Imposibleeeee'

She couldn't breathe.

Her mouth hung open in a silent scream as she was rendered completely helpless, unable to even move as her body spasmed uncontrollably. And then another jolt.

"Ahhhhh!"

Another orgasm hit, and then another, and another. It was endless, merciless, and completely overwhelming all her senses.

The last thing she saw before darkness claimed her was her sister's surprised expression as she drifted unconscious into blissful oblivion.

--------------------------------------

Tatsumaki slowly stirred awake, her green eyes fluttering open to an unfamiliar view. She found herself looking at the interior roof of a car. The gentle rumble of an engine and the sensation of movement immediately put her on high alert.

She bolted upright with a sharp gasp, her psychic aura instinctively flaring as she quickly assessed her surroundings. She was in the back seat of what appeared to be a luxury black car, and on the other side sat her little sister, who was pointedly avoiding eye contact and fidgeting with the hem of her dress.

"What happened?!" Tatsumaki demanded, her voice sharp with confusion and suspicion. "And why the hell am I in a car?!"

Fubuki's face turned an impressive shade of red as she scratched her cheek nervously, still refusing to meet her gaze. "Well, you see..." she began hesitantly, her voice unusually quiet. "I was doing a mission for the Hero Association in the area, and when I went to check on... things... I found you sleeping, so I picked you up."

Tatsumaki stared at her sister with growing suspicion, her arms crossing as her eyes narrowed dangerously. The explanation was complete nonsense, and they both knew it. She would never—never—fall asleep in some random place, especially not in Z-City. And even if, for some completely outlandish reason, she ever lost consciousness outside of her own secure quarters, she would automatically put up a psychic barrier around herself. A barrier that Fubuki definitely wouldn't be strong enough to break through to pick her up.

"Fubuki," she drawled, her voice carrying the kind of deadly calm that usually preceded someone getting launched into low orbit.

"Y-yes, sister?" Fubuki stammered, still looking everywhere except at her face.

The silence stretched between them for a long moment, filled only by the soft hum of the car's engine and the distant sounds of traffic. Tatsumaki could practically feel the guilt radiating off her sister.

"Hmph!"

It was clear nothing would happen and simply opened the car door. The door swung wide as she activated her power and started flying, keeping up with the car speed.

"Stop messing around with that pathetic little group of weaklings!" she called back. "And next time, maybe pick a better lie!"

With that, she shot upward into the sky, leaving her sister behind.

As Tatsumaki flew through the afternoon air, putting distance between herself and the entire bizarre situation, she couldn't help but shake her head in bewilderment.

‘What a weird dream that whole thing was. Yes, it was a dream.’

After all, there was no way any of that could have actually happened. 

No way at all.