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Assistant: Title: To Boldly C@m
        Author: ColdLuigi ColdLuigi 
        Chapter: 6/12 
        Summary: Izuku Midoriya didn’t expect to be the first human to make contact with an alien species. He also didn’t expect to be that contact to be an immortal, shapeshifting s@x alien named Shoko Todoroki from a six-billion-year-old species devoted exclusively to using the powers of gene editing, shapeshifting, and sloppy breeding s@x to create a universe of eternal xenophilia, but hey, it’s a little hard to argue with an immortal shapeshifting s@x alien who wants you to f@ck every hot girl you’ve ever met, and a bunch of hot alien women she found along the way.
        Contents: Chapter 6: Big Sisters
    

    


      
        
          This chapter includes a few shades of sister-sister play, so, consider yourselves warned if that's an issue for you. Nothing too crazy on that front, though.On OTHER fronts, however...Enjoy!
            
            (See the end of the chapter for  more notes.)
            
      
  

  
  
    
    Izuku arrived home from a long day of heroism the next day quite content with how things were going.Katsumi had left that morning with an affectionate scowl and a promise to come back and “f@ck his nerdy brains out” that night, a promise Izuku knew full well Shoko had encouraged. Izuku himself certainly wasn’t complaining, of course.He hadn’t seen Shoko all day, either, and unlike Katsumi, he had to admit that that made him a little nervous. For all that Izuku was fairly sure at this point that she wasn’t going to actually  conquer  Earth in the traditional sense, that didn’t mean he liked the thought of a near-omnipotent s@x alien loose on the streets of Japan. Shoko  had  left him a message on his phone that morning—another thing that made Izuku a little bit terrified, since he’d never actually given her his number, and he was fairly sure she didn’t actually have a  phone—  saying  “sorry, minor threat to the safety of your entire species came up, dealing with it, I’ll be back before dinner,”  but that hadn’t actually answered any of Izuku’s questions, and in fact had raised several new ones.Still, Izuku had already learned that sometimes it was just best not to question Shoko. So instead, he started heading towards the bedroom, especially after he heard the sound of a familiar voice.Izuku then immediately slowed  down  his approach to the bedroom as he heard not one, but  two  voices inside. Cautiously, not wanting to interrupt if Shoko was actually doing something important…and not wanting to overhear if she was having one of her “so what deranged fantasy do you want to become real today” conversations with one of his female friends like she’d already done with Katsumi, he decided to listen for a second before barging in.“I’m just saying,” a sweet—but sultry—female voice he didn’t recognize declared, “By the time  I had been established for as long as you’ve been on this backwater, I had half a dozen kids and two world leaders under my thumb!”A snort followed, this one clearly from Shoko. “Yes, well, this is  my  planet,” she said in a prim, proper voice Izuku had never heard from his shapeshifting alien partner before. “And perhaps humans are simply more…  discerning than your species.”A soft, tinkling laugh filled the air. “Ah, little sister,” the unfamiliar woman said. “You haven’t changed a bit.”At that point, Izuku decided to step in. He gently knocked on the door—knowing Shoko’s species, he didn’t trust her to not be naked and/or transformed into some sort of unholy abomination—and then eased it open when Shoko called, “Come in!”When Izuku did, he found himself briefly surprised to find what  looked like a completely human woman sitting next to Shoko on the bed.Of course, looks were  very deceiving. This woman seemed to be a few years older, with a more mature figure than Shoko, who seemed to prefer a tall, slender supermodel form by default. This woman’s hair was fuller, almost completely white save for flecks of red, and a generally sweet look to her face—so long as you ignored the telltale gleam of golden light in her eyes.The family resemblance to Shoko was immediately obvious, even if Izuku hadn’t heard her call his alien mate  “little sister.”  Instantly, he was on guard. The warning look Shoko shot him, as if trying to tell him to  be careful,  didn’t help either. She seemed stiff, her back ramrod straight.The woman sitting next to her, by contrast, was all smiles as she stood. “Ah!” she said happily, bounding across the room, ignoring Izuku’s offered handshake in favor of hurling her arms around his shoulders in a lung-crushing hug. “You must be Izuku! I’ve heard so  much about you!”If Izuku hadn’t been almost totally inoculated against hyperaffectionate female attention thanks to Shoko, he might’ve found the feeling of this—absolutely  gorgeous, to be frank—woman mashing her body against his to be distracting. Instead, he gently pried her off, then said, “Uh…nice to meet you? Who are you?”The woman beamed. “My name is Fuyumi!” she said happily, immediately hugging Izuku again. “I’m Shoko’s—”“Sister,” Shoko sighed. She didn’t look particularly excited. In fact, she looked stiffer and more tense than Izuku could ever remember seeing before. “Izuku, meet my sister.”Fuyumi pulled back from Izuku again with a twinkle in her eye that Izuku  instantly  recognized. Even with only a few weeks of Shoko in his life, he knew  that  expression by heart. It was the look of a nigh-godlike being of s@x and pleasure getting  ideas. Fuyumi’s lips curved into a grin.  “Big  sister,” she added playfully. “Don’t be forgetting that now, Shoko. What’s the term this planet uses again, hmm?  Onee-sama?” Izuku felt the hairs on the back of his neck rise. Shoko, though, just rolled her eyes. “You have been on my planet for  less than twelve hours,” she grumbled. “Where did you get the time to learn the local slang?”Fuyumi chuckled. “A proper Integrator always does their  research  ahead of time,” she said in a voice that sounded so sultry it almost wrapped back around to normal. It was like Shoko got sometimes—so utterly steeped in s@x that it ceased to actually  feel  s@xual. It was just…how they were, even when they weren’t trying to be. But frankly, it sure felt like Fuyumi  was trying to be.Shoko narrowed her eyes, but didn’t respond to that. Instead, sounding rather unamused, she explained to Izuku, “It turns out Fuyumi’s planet is only a few thousand light years from here. She decided to come stop in for a chat.”Fuyumi nodded up and down eagerly. “Why, we’re practically  neighbors!”  she cooed. “I never thought I’d be so close to my  favorite little sister!”Shoko’s eye twitched.  “Favorite” is a funny way of describing it,” she muttered. “It’s more like I’m your favorite one to mess with.”Fuyumi just grinned. It bared a pair of inhuman fangs that felt a little  too much like vampire fangs to not be intentional. Apparently she was still shapeshifting in subtle ways, just to f@ck with him—as shown by the fact that those fangs immediately disappeared again, replaced by normal, human-looking teeth.Izuku frowned. “How… many little sisters do you have, exactly?” he asked Fuyumi.She laughed loudly. “What’s Mom up to now?” she asked Shoko. “I haven’t been home in a few hundred years.”Shoko shrugged, her lips drawn tightly together. “Last I checked, she had…thirty thousand daughters, I think?” she said. “She’s pregnant again, too.”Fuyumi nodded, while Izuku’s jaw dropped. “Mom’s always pregnant,” the older alien declared with a dismissive wave of her hand. “Comes with the territory. Why, if I had a hunk of a mate as perfect as hers, I’d have  forty thousand, at least!”Izuku coughed. “I’m sorry,” he said weakly,  “Thirty thousand?” Shoko and Fuyumi both turned to him, and for once, they both wore equally amused expressions at his reaction. “My mom’s the Founding Matriarch of a fully Integrated species, babe,” Shoko said. “Her daughters have spread across her entire world, had hundreds of daughters of their own, and so on and so on until our species is literally infused into every corner of their society and the indigenous population has gotten used to the existence of intelligent, h@rny alien life. She’s completed her mission—now she and her mate can basically just f@ck each other and anyone else they want until the heat death of the universe. Fuyumi and I are part of the group of her daughters she sent out to do the same thing to more inhabited planets.”Fuyumi nodded in agreement. “My planet’s out in what this planet calls the Beta Omicron system,” she said. “Lovely place. Tropical world, lots of islands, shallow seas. These beautiful tree-coral-hybrid organisms that grow right out of the seabed into forests thousands of feet tall. The locals are big on sustainability and commerce. They don’t have  nations so much as they have competing trading blocs.”Shoko raised an eyebrow. “Are they hot?” she asked. Quite possibly the most in-character question for her entire species, that.Fuyumi smirked. “If you like septapedal, semi-aquatic, semi-arboreal squidmonkeys,” she said sweetly. “Which, for the record, I do.”While Izuku tried and failed to process  that,  Shoko just moved on. “Okay, but why are you  here?” she demanded. “Shouldn’t you be back there?”Fuyumi laughed again. “Oh, I can step out for a while, it’s no trouble,” she said brightly, but with that  gleam  in her eye. “After all, I’ve got twenty or so daughters to help. I’ve even got a few  granddaughters now!”Izuku once again found himself with an odd sense of vertigo. After all, when you were dealing with functionally immortal godlike aliens, it could be hard to recall the sheer  timescales they thought on. Especially when it came to breeding.Shoko grew stiffer as Fuyumi turned towards her. “That’s why I wanted to check in, actually,” Shoko’s sister said. “You seem to be getting off to a bit of a… sluggish start here, Shoko. Nearly a full month by this planet’s reckoning, and you aren’t pregnant yet? What gives?”Izuku blinked. That…was not the question he’d been expecting. Apparently Shoko pinning him to the mattress multiple times a day and loudly screaming for him to get her pregnant wasn’t good enough for Fuyumi.Shoko’s features arranged into a scowl. “Did you  really travel thousands of light years to ask that?” she sighed.Fuyumi raised an eyebrow. “Your first message to the Matriarchs kept telling us all about how  exciting  and  unprecedented  this world is,” she said pointedly. “From what you’ve said, these  “quirks”  will completely transform galactic society once you Integrate humanity. But you haven’t even  started! You need to start churning out babies, sister! You see why we might think that you’re slacking?”Shoko’s scowl deepened. She glanced at Izuku, then back at Fuyumi. “I am laying the  groundwork,  sister,” she hissed. “Humans are cautious, downright  paranoid  creatures. They have  entire genres of entertainment  about battling shapeshifting aliens trying to infiltrate their governments! If I made a move at the wrong time, I could put the whole Integration in jeopardy!”Fuyumi didn’t look like she was buying it. “Is it that, or is it because  he  can’t breed you properly?” she asked, jerking a thumb at Izuku.That made both him and Shoko freeze in place. Shoko’s voice was colder than the Arctic when she spoke again. “Maybe you should just go f@ck your squidmonkeys,” she said in a low, dangerous tone. “And stop b@tting into my business.”Fuyumi tossed her hair over her shoulder; the motion revealed just how perfectly-proportioned her human body was beneath the thin veneer of clothing she’d evidently made for herself. “No can do, sister,” she said bluntly. “You’re right, this is a  special  planet; I’ve spent less than half a rotation here and I can already tell that these people are  special.  For the love of the Truths, have you  seen  their p@rn@gr@phy? They’re nearly as h@rny as  we  are, all without the slightest hint of enhancement! With how diverse these abilities of theirs are…you could usher in a new Golden Age of xenophilia if you Integrate them. But your mate  has to be up to the task of keeping you pregnant and productive. I intend to test him.”Izuku felt a chill run down his spine. Shoko, for her part, let her hands clench into fists before, slowly, letting out a breath.“You want the Greeting, don’t you?” she said darkly.Fuyumi smiled, then. A victorious smile, not a friendly one. “More or less,” she confirmed. “I can think of a few ways to… spice it up, so to speak.”Shoko scowled, but said nothing as Izuku finally managed to butt in. “Excuse me,” he said, “But I’d like to know what the hell you two are talking about now.”Fuyumi and Shoko exchanged a glance, before Shoko sighed and answered, “There’s an…old tradition we have. The Greeting. It isn’t actually  required anymore, but technically, if a senior Nymiac visits the planet of a lesser one, she has the right to, well…enjoy the host’s Mate.”Izuku blinked. Grinning, Fuyumi added, “Normally I wouldn’t step on my little sister’s toes like that…but, well, you heard my reasons already. Consider it our version of a shovel talk.”Izuku would’ve questioned that…but frankly, the immortal s@x alien shovel talk being sexual was possibly the  least surprising thing he’d learned about Shoko’s species since walking out of the shower to find her waiting for him that first day. He glanced at Shoko again. “You sure you’re okay with this?” he asked.Shoko snorted. “Not sure I’m a giant fan of my  big sister deciding to get on my ass for no reason,” she admitted, shooting Fuyumi a dirty look. “But I’ll be honest…there’s absolutely worse ways to spend an afternoon than watching you f@ck my sister.”She was smirking by the end of her sentence, and Fuyumi was, too. Still, Izuku hesitated.“And you’re both…okay with that?” he asked. “That’s not…weird? You watching?”Fuyumi and Shoko exchanged a glance. Then, they both burst out laughing. It didn’t sound mocking; it was more like they just found the idea ridiculous.“Oh, no, not at all,” Shoko laughed. “The whole, like,  incest  thing doesn’t really mean much to us. We can literally alter our entire genomes for kicks,  and we can’t knock each other up anyway—why would we care?”Fuyumi nodded in agreement. “You know, on fully Integrated planets, it’s fairly common for a couple of Nymiac sisters to all end up mated to the same man,” she said, eyes twinkling. “And if my little sister wants to indulge her cuckquean fetish by watching me f@ck her mate better than she ever could, well…that idea sounds  lovely.” Shoko raised an eyebrow, still smirking. “So  c@cky, big sister,” she purred. “I wonder if you’ll still be acting that way once Izuku’s c@ck is inside you.”Fuyumi seemed to take  that as her cue. “Well, why don’t we find out?” she asked pointedly.The elder Nymiac rose from the bed, her clothes seeming to magically  fall  away in the way that Shoko’s often did—the way that revealed them to be little more than nanite fabrications draped across a shaped body for the sake of appearances, while not actually being  clothing in a true sense. Really, Shoko and Fuyumi just gallivanted around naked all the time, and merely pretended to wear clothes.Izuku wasn’t thinking about that right now, though. He was thinking about how Fuyumi’s naked body was  f@ck@ng jaw-dropping. It went without saying, of course; she was an immortal alien sex goddess, of course she was one of the hottest women he’d ever seen. But still, the sight of her body—just as gorgeous as Shoko’s, and yet so surprisingly different, shorter and wider, with thicker thighs and wider hips, a body that showed the truth of Fuyumi’s claims to have birthed multiple children already—made blood rush to Izuku’s c@ck.“Mmm,” Fuyumi purred. “Come on,  boy. Show me what made Shoko choose you.”She pounced on him so swiftly he barely even realized she’d moved; she pulled him in, dragged his lips to hers as she rolled him onto his back with the deftness of an experienced woman. Izuku barely noticed her undressing him, but suddenly, his c@ck was in her impossibly soft hands, and Shoko had curled up on the pillows at the head of the bed to watch.Fuyumi began to pump her hand up and down Izuku’s shaft, getting him hard with ease. “Ooh, good response time,” she noted, as if taking scientific measurements. “You do have a lovely c@ck, Izuku. I bet it looks  so good inside my little sister’s c@nt.”Izuku groaned a little from the words, which were directed both at him  and at Shoko, who was watching from a few feet away. Izuku’s mate looked unamused by Fuyumi’s teasing.“Oh, get on with it already,” Shoko snapped. “We get it, you’ve got a big-sister complex, what a shocker.”Fuyumi laughed. Her fingers—just a  little bit softer than any human woman’s, clearly augmented with shapeshifting—moved down to cup Izuku’s b@lls. Her tongue—a little longer and more prehensile than it should’ve been—slipped from her mouth to moisten the tip of his c@ck.“So impatient, Shoko,” she cooed. “Does watching me f@ck your mate make you  nervous?  Worried he won’t live up to expectations? Or are you worried that he might like  me  better than  you?” Shoko looked unaffected by Fuyumi’s taunts. She shot back, “Well,  I  don’t usually make Izuku have to wait to actually f@ck me. Foreplay’s great and all, but it’s not how you actually get  pregnant.” Fuyumi just kept grinning. She made a happy little noise as Izuku, firmly lost in the haze of l@st now, reached out to cup her firm, lush t@ts, which were softer than Shoko’s default, her nipples longer and thicker. “You like t@ts, do you?” she asked Izuku. “Well, here. Maybe this will get you going.”As Izuku watched, her t@ts  swelled, growing quickly and aggressively outwards until she was half again as big as she’d started out. She laughed at the way he moaned appreciatively.“Oh, you  like  them,” Fuyumi cooed. She allowed Izuku to grope her enlarged br@@sts as she straddled him, rubbing the underside of his c@ck against the skin of her belly. “Go on. Is this what you really want? Is Shoko just too  flat for you?”Nobody in their right mind would have ever called Shoko flat, but that didn’t seem to matter. Shoko pouted as Fuyumi raised herself up, slowly lowering her soaking-wet p@ssy down onto Izuku’s c@ck.Izuku  hissed  at the tightness of the alien c@nt clenching around him; she felt a lot like Shoko did, but meatier, fleshier.  More.  Fuyumi undeniably had more experience taking c@ck than Shoko did, for all that they had the same powers; she knew how to subtly alter the contours of her p@ssy walls to  swallow his d@ck up, to press in on every side and ripple her muscles and create all manner of depraved protrusions, ribs and bumps to make his c@ck feel like it was in the most perfect torment device ever created.Fuyumi slowly began rocking her hips, letting Izuku play with her nipples and her huge t@ts as she glanced towards Shoko, who had stopped pretending to be annoyed, and started openly masturbating to the scene in front of her. She was naked now too, her alien body writhing lazily with pleasure.“F@ck yeah, little sister,” Fuyumi moaned. “Watch me f@ck your mate. F@ck@ng play with yourself. Have you realized that I’m  better than you, yet? Have you realized that your mate likes my c@nt more?”Shoko raised an eyebrow. Having apparently decided that she’d had enough of doing what Fuyumi wanted, she began to crawl towards Izuku.“Babe,” she murmured. “You like big t@ts, do you?”Izuku turned towards his mate—just in time to watch her smirk as  her t@ts started to swell. They grew just as big and perfect as Fuyumi’s…and then a little bit bigger. Shoko offered them up to him, let him bury his face into them even as he f@ck@d Fuyumi in long, slow thrusts.Fuyumi huffed loudly at Shoko’s entrance. “Now that’s just  crass,” she declared. “You want to play this game, little sister? Fine.”With that, Fuyumi’s own t@ts grew again. Not as much this time, but still enough to once again overtake Shoko’s. They were huge, heavy things now, wobbling gorgeously with each thrust as Izuku’s c@ckh@@d kissed up against what had to be Fuyumi’s cervix.Fuyumi let out a happy moan as she rippled her p@ssy again, trying her damndest to squeeze Izuku’s c@m out of him. He held on, though, mostly out of spite; this woman had insulted Shoko, implied she wasn’t good enough. He wasn’t going to let her think she’d won.Shoko seemed to be of the same mind. She once again got Izuku’s attention with her t@ts; she was bending over him, her swinging b@@bs filling his vision. “Here,” she said, loudly enough for Fuyumi and her gigantic swinging udders to hear. “I saw how much you  loved  it when you got to drink Katsumi’s milk, babe. Wanna try  mine?” She palmed her heavy, erect nipple, and  squeezed.  A spray of milk erupted from her tit, and Izuku reacted on pure instinct; he  lunged  forwards, head twisting to get the best possible angle to latch onto Shoko’s nipple and  slurp  breast milk straight from the tap. Shoko’s whole body bucked with pleasure, her head lolling back as she moaned happily, making sure Fuyumi got a front-row seat.For her part, Fuyumi scowled. “Cheap tricks,” she muttered, speeding up her pace as she rode Izuku’s c@ck. Her p@ssy squeezed down tighter around Izuku’s c@ck, rippling wet walls of masterfully controlled muscle making him buck and moan as he nursed Shoko’s t@ts.Shoko just fixed her big sister with a thoroughly unbothered smirk. “It works, sister,” she said cheerily. “Come on, don’t slack off now! You wanted to f@ck my Mate?  Then f@ck my f@ck@ng Mate!” Fuyumi harrumphed, and leaned forwards, her enlarged, sloshing t@ts mashing against Shoko’s as the elder Nymiac used her improved position to put even more downwards power into her movements, slamming herself onto Izuku’s c@ck so hard he could feel the impact of her ass on his thighs.“You…” Fuyumi huffed, fighting back a moan as Izuku struck  some  kind of spot inside her that made her back arch, “You are a  crass  excuse for a Nymiac, little sister. You lack  artistry! What would our mother think?”Shoko raised an eyebrow. “I once watched Mom f@ck three He’iim males into a mindbroken haze in a back alley in under thirty seconds,” she said mildly as Izuku’s hands came up to grip Fuyumi’s soft, gorgeous ass, dragging her down onto his c@ck again. “Honestly, I think she’d approve.”Fuyumi grumbled under her breath, and then seemed to decide on a different approach. She dragged Izuku up to her, pushing Shoko to the side. Now, instead of pure speed and power, she began to gently rock her hips in Izuku’s lap, and let the unholy contortions and ripples of her shapeshifting p@ssy send him into ecstasy.And it  worked.  Izuku felt like he’d stuck his d@ck in one of those vibrating massage chairs—Fuyumi was clenched around him so tightly, she was literally giving him a full-body c@ck massage. And then he saw her get that  look in her eye again.“Oh  Izukuuuu,” she simpered, having pushed Shoko out of the way until his whole world was filled with her gleaming gaze, “Do you feel that? Your c@ck against my cervix?”Izuku nodded weakly, groaning as Fuyumi worked her hips, making his tip knock against the barrier protecting her womb again just for emphasis. She’d seemingly lowered it down closer, shapeshifting her p@ssy to make it the perfect size to keep his c@ck against her cervix.And then Fuyumi smirked, eyes glowing gold. And Izuku let out a strangled gasp as he  felt her cervix open. In the blink of an eye, Izuku felt Fuyumi shapeshift her cervix into a squishy, wet entrance that practically  sucked  the tip of his c@ck inside, dragging him deeper into her—into a place he’d never been inside  any woman.“Mmmmm,” Fuyumi hummed in pleasure, biting her lip as Izuku’s c@ck throbbed inside her womb, Shoko’s eyes going wide with disbelief and jealousy. “I bet you’ve never felt  that before, eh, Izuku? You’ve never wombf@cked a girl? Is Shoko just not good enough at shaping her body to let you inside her own babymaker?”Shoko let out a noise that might have been a growl, but Izuku could barely hear it as Fuyumi literally started to  mold her womb to the shape of his c@ck,  dragging it up and down inside her to literally tease his c@ckh@@d with her womb and cervix. It was insane, it was deranged, and it felt  ridiculously f@ck@ng good. And then Fuyumi nuzzled in close to him, forehead-to-forehead, and opened her mouth. Her tongue slipped out, and like Shoko, she seemed to enjoy making it longer, slimier, and more agile than any human tongue.But that slime also caught Izuku’s eye; Fuyumi’s saliva seemed to shimmer, almost  iridescent and oily as she leaned in to kiss him.Her eyes twinkled as his went wide. “Oh, you noticed, did you?” she asked playfully as she continued to let him f@ck her womb. “There’s a little something I like to give my mates, when they’ve been  especially  well-behaved. A little…  pick-me-up,  if you will. Something to make your b@lls just absolutely  churn with c@m.”Fuyumi leaned in, and kissed him, her tongue slipping into his mouth. Izuku gasped as he felt the oily taste of whatever unholy chemical Fuyumi had concocted hit his mouth.A second later, he wasn’t so concerned with the taste. That was because the chemical apparently acted  ridiculously quickly;  Izuku threw his head back and  moaned as his b@lls started to pulse, heat lancing through his c@ck as he felt it start to throb with absolute desperation to c@m. He could feel it coming, feel it burning inside him—the biggest, thickest load he’d ever shoot was brewing in his b@lls, while his c@ck was literally slamming against the back of Fuyumi’s fertile, defenseless womb with every thrust.Fuyumi’s eyes were dancing with victory as Izuku started to buck uncontrollably beneath her.“You wanna c@m inside me, don’t you?” she breathed, her p@ssy—and womb—contorting and twirling their way around Izuku’s c@ck as whatever she’d given him drove him wild with l@st. “Wanna pump my tight p@ssy full of c@m?”All Izuku could do in response was groan and nod, completely at Fuyumi’s mercy.Fuyumi’s eyes flashed golden. Her p@ssy suddenly clamped  down, so tight around the base of Izuku’s c@ck he quickly realized that she was deliberately taunting him.“Mmmmm,” Fuyumi murmured, slowing down now, her bounces slow and deliberate, working Izuku up as close to his @rg@sm as possible…without letting him finish. “I bet your b@lls are just  aching  right now, hmm? So full of c@m you want to  pour into me.”Izuku screwed his eyes shut, barely able to handle the feeling of Fuyumi’s c@nt squeezing down on him in lazy, greedy ripples, trying to drag him in further, trying to guide his c@m right into her womb.Fuyumi chuckled. “What would you do if I didn’t let you, I wonder?” she asked. “If I got you  allllll  the way to the edge…and then just…  stopped?” Izuku whimpered. Every slap of Fuyumi’s hips against his pulled him closer to the edge. Every jiggle of her t@ts, every sound she made, every twitch of her insane alien p@ssy and womb as they wrapped themselves around his c@ck like a hug, they were all about to overwhelm him. They were gonna make him  c@m. Unless Fuyumi said no. And from the look in her eyes, Izuku realized that that was exactly what she was going to do.And then, almost lazily, another hand curved from behind Fuyumi, pale and slender, sparking with familiar gold light.Fuyumi didn’t seem to notice it; she was far too intent on Izuku, on absolutely  ruining her sister’s mate, to pay attention to anything else.“I wonder if you’ll ever be able to f@ck my little sister again,” she murmured, sultry and smirking. “When you know what a truly  experienced Nymiac woman can d-”A face appeared over her shoulder, making Fuyumi cut herself off as she realized who it was—probably from the massive, milky pair of t@ts suddenly pressing against her back.“Sorry about this one, sis,” Shoko said cheerfully as her sparking, glowing fingers made contact with Fuyumi’s cl@t. “But I have a  better idea.”Her fingers alive with Nymiac power, Shoko pressed  down,  and Fuyumi shattered. She threw her head back and  screamed  in sudden, disbelieving pleasure as a simple application of Nymiac powers caused her to  instantly c@m her brains out, her body shuddering and her c@nt squeezing as Shoko forced her fellow Nymiac into a neverending @rg@sm loop as casually as a human might tap another on their shoulder to get their attention.Shocked by the sudden turnaround—and by the feeling of having a Nymiac suddenly lose control of her masterfully-sculpted c@nt while literally taking his c@ck to the hilt—Izuku stared up at the sight in front of him, his eyes locked first on Fuyumi’s writhing, c@mm@ng form, and then on his Mate’s gaze, and the devious, victorious smirk Shoko wore.“You know what the best part of f@ck@ng a human is?” Shoko asked as Fuyumi thrashed in her grip, unable to break free in the grip of her sudden @rg@sm. With Izuku holding her hips and Shoko holding her shoulders, she could do nothing but take c@ck and c@m violently. Shoko nuzzled in close to Fuyumi’s ear, her t@ts still hugely enlarged and practically pouring milk that flowed down her sister’s back and onto Izuku’s legs. “It’s their  stamina,”  she murmured sexily. “They  just. Keep. Going. Your squidmonkeys don’t last long before they’re done, I bet.”Fuyumi managed a weak nod as she rode out the last of her @rg@sm. Shoko chuckled. “Well,” she declared,  “My  mate doesn’t have that problem. He can f@ck you as long and as hard as he wants. And when he wants to c@m…  he  decides where to c@m. And as you already realized…it’ll be  inside you.”Fuyumi  howled  as Shoko flipped her over without warning, pushing her onto her back so that Izuku could pound down into her. It was a full mating press now, and there was no way out for Fuyumi. Izuku could drive his c@ck into her rippling, fertile c@nt freely. And he took full advantage.Fuyumi’s squeals and shrieks filled the air as Izuku started to f@ck her again instantly, the tables fully turned, all remnants of her control shattered. She was being held down and f@ck@d, and she was loving every second of it.Still, her eyes were wide, and she desperately protested, saying, “I—you can’t! T-the Laws!”“Oh, right,” Shoko said in mock rememberance. “The  Laws!  The ones I  don’t give a f@ck about!” Izuku blinked, some shred of confusion managing to pass through the howling need raging through him. Seeing that, Shoko turned towards him, and sweetly explained, “There’s a rule for our species, babe. An Integrator who hasn’t finished her mission is only allowed to breed with her Mate. She can’t just go gallivanting off to get knocked up by whoever she wants. She has a job to do. Neither Fuyumi nor I have finished our missions yet. So Fuyumi  shouldn’t  be getting pregnant from this, no matter how desperately her body  begs for you to put a human baby in her belly.”Fuyumi let out a low moan as Izuku pushed through her cervix again, still soft and squishy and impossibly f@ckable. Squishing her massive t@ts to the bed to get low enough to whisper in Fuyumi’s ear, Shoko hissed, “Oh, but you want it  bad,  don’t you? You’re getting addicted to human c@ck. You want to get  bred  by human cock. You don’t  care about the Laws. You don’t care that it’ll be sixty years with @rg@sm-denial nanites in your body if the Matriarchs learn you got knocked up by the wrong species. Sixty years without c@mm@ng, all for this one moment. And you still might think it’s worth it. Isn’t that right?”Fuyumi’s eyes rolled back, and she  came for the second time in as many minutes. That was enough of an answer all by itself.Soon, it was all too much for Izuku. He, too, hit his peak, and without skipping a beat, Shoko  dragged him b@lls-deep into Fuyumi, and made him pump his load straight into her womb.Fuyumi  shrieked in defeat, her back arched, her body shaking, her t@ts still huge and slapping against her chest. Izuku watched her body ripple with waves of gold, her c@nt milking him dry. Her eyes rolled back in her head, her lips slack and parted as her moans of utterly f@ck@d-out bliss filled the air.Just after Izuku pulled out of the thoroughly-creampied alien, Shoko’s fingers played across Fuyumi’s belly. There was a flash of multicolored light, and Fuyumi gasped for a second.Shoko tutted, shaking her head in disappointment. “Oh,  dear,”  she tutted. “Looks like that egg of yours got fertilized by my Mate’s thick, sticky c@m, Fuyumi. You’re pregnant now. Congratulations! But you  have broken the Laws. And you know what that means.”Fuyumi whimpered. She seemed to be completely beyond the ability to speak now.Shoko tutted again. “Sixty years for a first offense,” she said sadly. “Sixty years of @rg@sm denial. The nanites still let you feel pleasure, did you know that? They let you feel everything…right up until you c@m. Then they lock you down, take it all away. You get everything…except the release. You  never get release. The ultimate edging tool. And it never, ever goes away. Not for sixty years.”Fuyumi made a noise that might’ve been a sob. Her hand was over her belly now too. Izuku could only watch.Shoko had a  vicious  light in her eyes as she spoke. “I could get you out of it though,  big sister,”  she said, and Fuyumi’s head snapped to her. “No nanites, no punishment. Nobody would ever even know.”Fuyumi finally managed to speak. “H…How?” she asked.Shoko smiled, and it was a terrible thing. Bright, lively, and just a little bit  evil. “Give it to  me,”  she whispered. “I’ll take the baby out of you, right now. I’ll carry it instead. I’ll birth her. I’ll raise her. She’ll be  my daughter. My Mate is her father, after all. Only seems fair to take her in.”Fuyumi’s eyes widened. Light flashed underneath her own hand, as if she needed to confirm it before deciding. Then, she closed her eyes.“You’ll…take care of her?” she asked softly.Shoko nodded. She met Fuyumi’s eyes, and in a voice stripped of all the play-drama, filled with nothing but straight, honest truth, she told her, “I’ll treat her as my own.”Fuyumi was quiet for a moment. Then, she nodded.Shoko’s eyes  gleamed. She swung a leg over her big sister’s prone form, until she was pressed belly-to-belly against Fuyumi. Then, there was a flash of light, brighter than anything Izuku had ever seen from her using her powers.Both Nymiacs went almost totally translucent, like clear gel outlining the shape of their bodies, interlaced with golden flecks; the closest thing to their true forms that Izuku had really seen. A tiny ball of light passed from one to the other, wrapped up tight in their powers, kept nestled safely away from harm.And then, at last, the light faded and both of them returned to their human forms. Shoko and Fuyumi even both still had their massive t@ts from their little arms race.Fuyumi slumped back, a little relieved smile on her face. Shoko, meanwhile, had a hand on her belly, where, presumably, the fertilized egg was already attached and starting to divide.Turning to Izuku, she smiled sheepishly. “Sorry for dropping fatherhood on you like that, babe,” she said. “But it didn’t feel right, leaving my sister to get punished for something we did to her.”Izuku raised an eyebrow. “I…have to agree,” he admitted. “I guess we’ll make it work.”Shoko nodded. “Oh, that reminds me,” she said, promptly bending right back over. “Here. My turn. Make sure to c@m inside me.”Izuku blinked. He had  not been ready for that. “Uh…why?”Shoko craned her neck to look back at him. Izuku also noticed that she’d bent over directly atop Fuyumi’s face—meaning that if he  did f@ck her, the limp, exhausted woman would be getting a closeup of Shoko getting creampied and have no way to escape. She’d almost certainly be getting a taste of any stray juices, too.“Because,” Shoko said bluntly, “I’m already pregnant with  one kid, and I just checked and I’ve got another egg ready to go. Might as well go two for twins, eh?”Izuku  wanted to argue with that, but found he really couldn’t. Not when the idea of Shoko with a round, pregnant belly was hammering on his caveman brain harder than a Carolina Smash. Slowly, he crept forwards to push up against Shoko from behind.As he moved into position, Fuyumi gave an exhausted huff from beneath them, finally realizing that Shoko’s torment of her wasn’t quite finished yet.“You really are a piece of work, little sister,” she murmured. “You already got me  into  a mess,  out  of it, and now you’re gonna make me sit in the splash zone for your first actual breeding?”Shoko looked down at her sister, mismatched eyes gleaming with a light that wasn’t cruel…at least, not entirely. “Let this be a lesson,  big sister,”  she said.  “Never f@ck with me, my mate, or my planet again.”Fuyumi looked like she wanted to respond to that, but Izuku slid into Shoko at that moment, and after that there was really no point in doing anything but enjoying her VIP seat for the show of the year.It was very important to Momo Yaoyorozu that her friends understood that this didn’t count as stalking.After all, they were  heroes.  Investigative work was part of their job description! So sitting behind a dumpster opposite the front door of Izuku Midoriya’s apartment building, waiting for any sign of him or his mysterious girlfriend, was a  stakeout  and not  creepy! After all, nobody seemed to know anything about this  Shoko Todoroki  girl. That made Momo nervous. None of them had seen or heard from Katsumi in nearly two days either—and the last person they’d seen her talking to had been Shoko, back at the class reunion. That made Momo  doubly nervous.That was how they’d ended up here, with Momo, Kyoka, and Ochako all pointing pairs of binoculars at the front door of Izuku’s building, concealed from view by the dumpster.From her position behind Momo, Ochako sighed, shifting her weight from one knee to the other.“For the record, I think this is a little much,” she declared as Momo lowered her binoculars. On Momo’s other side, Kyoka snorted, probably in agreement.Momo shrugged. “Perhaps,” she allowed. “But there’s just… something about that woman that sits poorly with me.”Kyoka snorted again, louder this time. “Probably the fact that she’s totally f@ck@ng Midoriya into the mattress,” she said crudely. “And the walls.”Momo fell silent. Ochako made a growling noise that was decidedly  beastlike. “Don’t f@ck@n’ remind me,” the brown-haired woman snarled. “I swear, we spend  years  behavin’ ourselves, workin’ things out, being  careful  and  considerate of each others’ feelin’s, and then this…this…”“Trollop?” Momo offered as Ochako searched for a suitable term.Ochako nodded vigorously. “This  trollop  comes saunterin’ in and just…  takes  him!” she finished, her accent growing thicker with every word. “His virginity was  mine, goddamnit!”Momo and Kyoka exchanged a glance. “Was Izuku aware of this?” Momo asked dryly.Ochako paused, and like a passing thundercloud, she reverted to her sheepish, smiling demeanor, tapping her thumb pads together and blushing furiously. “Uh, er, what I meant was—” she said weakly.“Oh, I think we heard what you meant,” Kyoka said, waggling her eyebrows. “But I’m afraid that cat’s already well out of the bag.”Ochako growled. “But I just don’t understand  how!”  she cried. “How the fuck did that two-toned  sl@t  get her hooks into him?”Kyoka’s recently-lowered eyebrow went right back up. Sarcastically, she raised a hand to gesture at her chest, mimicking having a pair of absolutely  massive t@ts rather than her small, cute A-cups.Momo sighed. It was true that this  Shoko Todoroki  was the most  unfairly  gorgeous woman she’d ever seen. Momo was quite used to being the bustiest woman in any group, and yet Shoko had her  beat. And it wasn’t all that close.And yet…that wasn’t what made Momo uneasy about her. That was the sheer  ease  with which Shoko had inserted herself into a room full of the top Japanese heroes, showing not the slightest hint of awe or even fear. Momo didn’t consider herself particularly arrogant, but neither was she blind; she knew full well that for most young women—even those who had started dating a Top Ten hero—suddenly walking into a room full of famous celebrities should have left them at least a  little  starstruck. Shoko hadn’t been in the slightest. Indeed, within ten minutes, she’d been calling Katsumi Bakugo, the legendarily cranky Number Nine Hero, by her  childhood nickname. And that was the  other  thing that had set Momo’s instincts to ringing. Seeing Katsumi Bakugo follow someone,  anyone,  around like a meek little puppy sent alarm bells ringing in anyone who knew the bombshell blonde. When it was the girl who was openly dating  Katsumi’s childhood crush? With the amount of cajoling, bribery, and straight-up bullying it had taken to get Katsumi to sign on to the Deku Agreement in the first place?Something was  up.  Something  serious.  Shoko Todoroki had emerged out of nowhere, and though her records all checked out—Momo came from money, she knew  exactly  which private investigators to call to learn everything there was to know about somebody—Momo simply couldn’t determine what possible opportunity the heiress of a famously reclusive dry goods importer would have had to meet and seduce Izuku Midoriya. And Shoko sure didn’t  act like a wealthy heiress. As one herself, Momo was quite sure on that.But for all that nothing about Shoko Todoroki quite added up, Momo had no idea what they might be missing—or why Katsumi had apparently not been seen in her apartment for several days. Hence the stakeout.Refocusing on watching the front door of the building alongside her comrades, Kyoka asked, “Hey, Yaomomo. Remind me what we’re watching for again?”Momo lowered her binoculars again. “Anything out of the ordinary,” she said. “Odd comings and goings, suspicious individuals, perhaps signs of quirk use that don’t align with existing records…and I would quite like to know where Bakugo has gone to. She’s been out of communication recently, and I’d like to know why.”Ochako and Kyoka nodded. “Do you…think Shoko did something to her?” Ochako wondered. “She was acting kinda weird at the reunion…”Kyoka opened her mouth, probably to offer a response…only for the sound of someone clearing their throat to ring through the alley like a gun being cocked. All three of them froze in place. Slowly, achingly slowly, the three concealed heroines turned around, towards the source of the sound.They found Katsumi Bakugo, wearing her usual jeans and a sleeveless tank top, crossing her arms over her chest, raising one eyebrow, and giving her former classmates a truly  withering glare.“Hey guys,” she said dryly, the look on her face suggesting that she was  very unamused with their presence. “Wanna explain to me what the fuck you’re doing here?”There was a single heartbeat of dead, stunned silence, as the three heroines tried to wrap their heads around Katsumi’s sudden appearance.And then they all started babbling at once.“I-It’s not what it looks like!”“Oh, h-hey, Bakugo! Fancy seeing you here!”“I assure you, we are on very important and official hero business!”Katsumi cocked her eyebrow even further. “Official hero business,” she scoffed. “Yeah, right. That’s why you’re behind a dumpster, binoculars aimed at  Deku’s apartment building.” Realizing that they weren’t going to be able to get away with it, Momo sighed. “Okay, yes, you caught us,” she admitted. “We were on the lookout for…suspicious activity.”Katsumi remained unimpressed. “Suspicious activity,” she repeated. “What  kind of suspicious activity do you think’s gonna happen under Deku’s literal nose?”Momo fell silent, leaving Ochako to speak up next. “Listen, Bakugo,” she began, “You gotta admit that  somethin’s fishy about this Todoroki girl, right?”Katsumi’s expression changed. Surprise flickered across her face, followed by a distant look that almost looked…amused. “Yeah, I guess you could say that,” she allowed.Heartened, Ochako continued, “I mean, seriously! She shows up outta nowhere, gets her claws into Deku, and then  flaunts  the fact that she’s f@ck@n’ him in our faces! The  gall!” Katsumi’s lips twitched. It was as if she was desperately fighting back a laugh. But why would she be? Momo couldn’t imagine Katsumi finding the thought of Izuku Midoriya having sexual intercourse with a woman who wasn’t her very funny.Kyoka, for her part, was looking Katsumi over. “We were kinda worried about you too,” she added. “I mean, it’s been a couple days, and you’ve been…acting a little weird lately.”Katsumi’s eyes narrowed, and small explosions started popping off in her palms. “You wanna repeat that?” she growled.Kyoka raised her hands immediately. Once she did, Katsumi smirked.“Alright, yeah, I get it,” she said surprisingly calmly. “But really, I’m fine.  More than fine, actually.”Ochako, Kyoka, and Momo exchanged glances at the odd, misty look Katsumi got in her eyes. She looked… happy. And everyone knew that Katsumi Bakugo was absolutely never happy.Suddenly finding herself utterly terrified and determined to leave before Katsumi Bakugo actually started  smiling, Momo stood, the other two women following her after a moment. “We will take our leave now,” she said. “We apologize for…spying like this.”Katsumi snorted. “Y’know, if you actually wanted to talk some stuff over with Shoko, she’s up there right now,” she said, jerking a thumb at where Izuku’s apartment was, on the top floor of the building. For a split second, Momo could’ve sworn that Katsumi’s searing red eyes flashed gold. “She’d love to…explain herself.”A chill went down Momo’s spine. Something about the way Katsumi spoke, the way she acted…it only made her  more certain that something was very, very wrong. Or, maybe, very very right. Either way, she needed to leave immediately.“No thank you,” she said breezily. “I’m afraid we’re all far too busy at the moment.”Kyoka and Ochako bobbed their heads in agreement, clearly operating off the same instincts as Momo. At least, until Ochako’s eyes narrowed. “Shoko?” she repeated. “Since when do you call Deku’s girlfriend by her first name?”Katsumi blinked. Then, she scowled—but there was something else underneath it, something that settled into the pit of Momo’s stomach like lead.“Never mind that,” Katsumi hissed. “Anyway, see you guys around. And stop f@ck@ng spying on my…on  Deku!” With that, she spun on her heel, and started marching…back towards the front door of Izuku’s apartment building. Momo, Ochako, and Kyoka remained silent and stationary until the door had slammed shut and they were once again alone on the street.As they finally turned to walk away, Kyoka muttered under her breath, “So...what are we thinking? Mind control?”Ochako shook her head. “Nah,” she whispered back. “I think it’s an impostor. Like Toga, maybe. Shoko totally replaced Bakugo with a lookalike. No way she’d be so… chill otherwise.”Momo sighed. “You two and your overactive imaginations,” she chided them. “I’m sure everything is fine.”Kyoka snorted. “Yeah, probably,” she conceded. “But that's no fun, Momo! Come on, if you had to pick a crazy theory, which one do you like?”Momo chuckled…for a moment, at least. Then, she fell silent, thinking about what she’d seen watching Shoko at the reunion.“Aliens,” she said at last. “If I had to make some nonsensical guess, I’d say aliens.”With that, the three women left, chuckling to themselves…and trying to ignore the sense of  weirdness the interaction with Katsumi had left them with.By the time they realized the truth, it would be far too late.
  
  

    
      
        
        
          Let me know what you think of this chapter, and if you want to, make suggestions about who should go next-I have a few different ideas, but I just need to pick which one to do first.And feel free to join the discord server if you want to see more of this!'
User: Does this have good sex?
User: Does this have good sex?
Assistant: