Hiro's Harem - Cover

Hiro's Harem

Copyright© 2025 by Mehefin013

Chapter 28

Fan Fiction Sex Story: Chapter 28 - Hiro may be the youngest person to ever attend SFIT, but that doesn’t mean he’s too young to handle the various challenges that come with college life, including love. But what will he do when that particular challenge comes from several different sources at the same time? (Updated twice a month, 30 chapters total are planned)

Caution: This Fan Fiction Sex Story contains strong sexual content, including Ma/Fa   mt/ft   Ma/ft   mt/Fa   Fa/Fa   ft/ft   Fa/ft   Mult   Teenagers   Consensual   Lesbian   BiSexual   Heterosexual   Fan Fiction   Sharing   Incest   Father   Daughter   Aunt   Nephew   Group Sex   Harem   Polygamy/Polyamory   Interracial   White Male   White Female   Hispanic Male   Hispanic Female   Exhibitionism   First   Masturbation   Oral Sex   Voyeurism   Nudism  

Karmi stepped out of her final exam and stretched, feeling very relieved. It had been an intense last few weeks, having to study for material she had not specialised in before. But with enough hard work, plus a lot of tutoring from Hiro, she felt that she pulled off a very respectful job. With her academics now done for the next few months, she was looking forward to what the summer would hold, including deepening her relationship with the other girls in Hiro’s life. Or more specifically, his bed. Since they now basically lived together, she had been able to really connect with Megan, but there hadn’t been nearly as many chances to spend time with Honey Lemon or GoGo, something she hoped she’d be able to fix during her time off. She was Hiro’s first girlfriend, and unofficial head of the harem, so she felt it was her job to really get to know Hiro’s other lovers if they wanted to make this unconventional relationship work over the long term.

She hadn’t made it very far down the hall, though, when Professor Granville approached her. “Karmi,” she said, getting the young woman’s attention. Karmi turned to look at her and noticed the rather grim look on the professor’s face. “I’m sorry to have to spoil the start of your holidays, but ... there’s been an attack.”

Karmi rushed into the hospital-like room where Hiro and GoGo were being cared for. Megan and Honey Lemon were there too. After a glance and seeing that they were all okay, she immediately asked, “Where is Trina? Is she okay?”

Hiro got up from his bed and gave Karmi a gentle hug. “She’s still in surgery, but stable. Liv assured us that her life is no longer in jeopardy. Her people have removed all the shrapnel and are currently fixing the damage that one large spike did to her lung. Some combination of cloned organs and skin grafting, or something like that. Biology is your area of expertise, not mine. But we’ve been promised that she’ll be as good as new once they’re done with her.”

Karmi let out a sigh of relief then focused on those in the room. “And you?” she asked, looking at both Hiro and GoGo.

Hiro gave a little shrug. “Just a mild concussion. Took a blow to the head and got knocked out for a bit. I’ll have to take it easy for a while and take some pills, but that’s it.”

GoGo pointed to the bandage over one ear. “Blown eardrum, but as soon as they’re done with Trina, they’ll patch it back up somehow.”

“What about the others?” Karmi asked.

“Wasabi was fine so he left to go help Fred deal with the aftermath, and Noodle Burger Boy was here but he went back to guard the cafe, just in case there was a follow up attack,” Honey Lemon explained. “I was given a clean bill of health too, but wanted to stick around, for obvious reasons.”

“Just a couple of scraped palms and a bit of a bruised back for me,” Megan said once it was her turn, showing off her hands. Then she became more solemn. “Trina totally saved my life. She jumped in front of me just before that robot exploded. That giant shard of metal that got embedded in her chest ... it would have hit me instead. And from what we could tell, it wouldn’t have been my lung that it went through ... but my heart.”

Karmi gasped, then pulled Megan in for a tight hug. “Oh my god! I can’t believe we almost lost you!” she said, tearing up.

Megan began to tear up as well, the near death experience still vivid in her mind. “Yeah, I got pretty lucky. But like I said, Trina saved my life.”

The two girls shared a moment, hugging and softly kissing each other as a few tears silently trickled down their cheeks. GoGo and Honey Lemon joined in on the hug, adding their own love and sympathy to the embrace. Because of their hero work, they had their fair share of close calls so they knew full well what Megan was going through. Before long, though, the door opened up and Liv Amara came in, accompanied by Megan’s father, who was looking rather anxious.

Diego’s eyes immediately fell on his daughter and he rushed over and hugged her even tighter than Karmi had. “Oh thank God you’re safe!” he said. “Fred told me what happened, but I still needed to see it for myself.”

“I’m okay, Dad. Really,” Megan said, though she hugged him back just as tightly. “Trina saved me.”

“Speaking of Trina,” Hiro spoke up, looking at Liv. “How is she?”

The woman gave the group a gentle smile. “She’s perfectly fine. The surgery was successful and she’ll make a complete recovery in time, though I’ll want to keep her here for a few days to make sure the replacement lung is integrating well and that the microstitches are holding. By the time she leaves, any scars will be so small you won’t even be able to tell they’re there.”

“Can we see her?” Megan asked.

Liv nodded. “She’s actually asking for you all. You’ll have to keep it brief though, as her body’s gone through quite the traumatic experience and needs to rest.”

The group quickly but quietly filed into the room where Trina was lying in bed. There was an intravenous hooked up to her arm and some tubes in her nose giving her extra oxygen. She lacked the strength to sit up, but managed to raise a hand and give a little wave. “Hi guys,” she said, though her voice was not much more than a whisper.

Hiro took hold of her hand, holding it gently. “We’re so glad you’re okay. Or will be okay, I guess I should say.”

Trina gave him a weak smile. “Yeah, I got messed up pretty badly back there, didn’t I? You know, ever since I got this body I’ve liked pretty much everything I’ve experienced. But pain? I wouldn’t recommend it.”

The others gave a little chuckle at that. It was really good to see Trina in good humour in light of her brush with death. “Yeah, that’s true for most people,” Megan said, taking Trina’s hand from Hiro and holding it herself. “Thank you Trina. If you didn’t do what you did, that spike would have killed me. You saved my life.”

“Not to mention myself and Wasabi,” GoGo added. “What you did with those microbots, shielding us from the explosion, you probably saved our lives too.”

“Then the pain was worth it,” Trina said weakly. “But I’m sorry,” she added unexpectedly. “You all got hurt because of me.”

“That’s nonsense,” Honey Lemon said. “You did nothing wrong.”

“But those robots ... they were after me. If I wasn’t around then none of you would have been hurt.”

“No,” Hiro said. “If anything, you getting hurt was our fault. We were the ones who messed up by activating them in the first place and again when we let them get away.”

“But...”

“Stop,” Diego said, addressing the room. “Look, we can play the ‘No, it’s my fault’ game all day long, but in the end it doesn’t really matter. What matters is what people chose to do during the crisis. And Trina? What you did saved a lot of lives. You put yourself in harm’s way to protect others.”

“I wasn’t really thinking about that. About being in harm’s way, I mean,” Trina said.

Diego nodded. “That’s exactly my point. You didn’t think. You acted. Selflessly.”

“Just like how Hiro took that hit for you when he jumped in front of that flower pot,” GoGo said. “It was a very heroic thing to do.”

Diego nodded again. “Which is why, and I think everyone would be in agreement, that because of your actions, when you come back home your probation will officially be over.”

“That’s great!” Megan cheered. “Now that you’ve got total freedom, what’s the first thing you want to do once you get out of here?” she asked excitedly.

“Let’s save the Q and A session for another time,” Liv said, interrupting. “Trina needs her rest. Now that she’s seen that you’re all okay, she can rest easier.”

With that, they all said their goodbyes, with Hiro and Karmi promising to come by again as soon as possible, which would be as soon as Liv would allow it now that their exams were done and they were officially on summer holidays. Megan was a little jealous of that fact, as she still had a whole month to go before her own summer break started. But she also promised to stop by right after school to check in on Trina.

A week later, Trina was released from medical care, fully recovered, and as Liv had promised, there wasn’t even any visible scarring from her impalement. When she returned to the Lucky Cat she was greeted with a huge party, much to her surprise. There were balloons and cake and a big banner that read “Welcome Back, Trina!”, and everyone there congratulated her on her recovery and for her bravery during the robot attack. Many of the regular patrons of the cafe had grown fond of her and had even gotten her some small get-well gifts. To say she was touched was an understatement, and everyone’s heartfelt gratitude produced a strange feeling in her chest that made her want to smile and cry at the same time.

During the party Megan approached Trina. “So, back when you just got out of surgery I asked you a question, but Liv told us to let you rest. Well, now that you’re fully recovered I’ll ask you again. With my dad ending your probation and you being able to do whatever you want, what is it that you want to do?”

Trina thought about that for a moment. “I’m not really sure,” she began. “Honestly, I think I just want to do normal teen stuff. I’ve never been able to do that before.”

“Normal teen stuff? Like what?”

“I honestly don’t know. I’m not exactly a normal teen, after all. I don’t have the same upbringing as you, so I was hoping you could tell me.”

Megan smiled. “Leave it to me! I’m sure I can come up with all sorts of things we can do together. Ever been to the movies? How about the beach? Oh! And Hiro’s birthday is coming up next week so we’re definitely going to have to do something special for that!”

The two girls continued to chat for a bit then when Trina was pulled off to talk with some other people Megan began formulating a plan on how to give Trina the best kind of experience she could think of. She had a pretty good idea of what she ultimately wanted to do, it was just a matter of getting others on board with it. She’d have to start things off slowly and work her way up to the more fun stuff.

First up was a trip to the movies. The night after Trina’s welcome back party, Hiro, Megan, Karmi, and Trina all headed down to the local movie theatre to watch the latest sci-fi movie. They ordered huge buckets of popcorn and drinks and sat down next to each other, with Hiro being flanked by his two girlfriends and Trina sitting on Megan’s other side. The movie was surprisingly well made and Megan was glad that Trina’s first movie going experience was with an actual good movie. But what was more exciting was how she and Karmi could both hold Hiro’s hands and sneak in the occasional kiss with him. They were probably getting some curious glances from anyone sitting behind them as Hiro first kissed Karmi and then turned and kissed Megan, but she didn’t care.

About half way through the movie, Megan started to put her real plan into action. She quietly asked Hiro to switch seats with her. When he asked why, she replied, “You’ve been the centre of attention long enough, and I want to have a turn. Or is it only you who’s allowed to sit next to our girlfriend and kiss her?” The thought of Karmi and Megan making out made Hiro smile and he gladly traded seats. Settling back down, it didn’t take Megan long to do what Hiro had been doing and held hands with both him and Karmi.

Trina had been engrossed with the movies so hadn’t noticed the three teens flirting and kissing each other, but that changed when Hiro and Megan traded seats. Wondering why they switched, she kept glancing over at them and watching how they interacted. Thinking that what they were doing was just regular behaviour for the allow, she wanted to join in so reached out and took Hiro’s free hand in hers, making him jump slightly from surprise.

“Um, Trina? What are you doing?” he whispered, glancing down at their hands.

“Oh! Um, sorry. Am I not supposed to? I saw you guys and I just thought that...” she said, blushing slightly, and began to let go of his hand.

Megan, listening in, squeezed Hiro’s other hand and gave him a bit of a nudge with her shoulder. In response, Hiro tightened his own grip on Trina’s hand. “No, no. It’s fine. I just wasn’t expecting it, that’s all,” he said, earning a smile from both Megan and Trina. Then, still holding hands, they settled back down to continue watching the movie.

“I know what it is you’re trying to do,” Karmi suddenly whispered into Megan’s ear quietly enough that only she could hear.

“And what would that be?” Megan whispered back.

“To get Trina added to the harem.”

Megan waited for a moment before saying, “Am I that obvious?”

Karmi smiled. “No, but if I wanted to get Trina to join us then I’d probably be doing the same thing.”

“So...”

“So what?”

“So do you approve? You’re the head girlfriend so you have the final say. I’ll stop if you want me to.”

“For now, let’s just say I don’t disapprove,” Karmi said, then gave Megan a brief kiss.

From a couple of rows behind them, they heard a couple of older teenage guys talking. “Dude! Check that out!” one of them said, clearly talking about the two girls kissing. The exhibitionist in Megan took over for a moment and she turned Karmi’s brief kiss into a full on make-out session. “Fuck, that’s hot!” said the other guy as they watched. Both Karmi and Megan giggled at their reaction but otherwise ignored their little audience.

The remainder of the movie played out without incident and all four teens left the theatre with smiles on their faces. The two guys who had seen Karmi and Megan kissing saw them and began to approach, perhaps in the hopes that the girls were available, but when they saw both girls give Hiro a kiss, they quickly turned and walked away, feeling no small amount of jealousy.

“So, how was your first movie experience?” Karmi asked Trina.

“It was great! The movie was really entertaining. I’d love to go again and see other kinds of movies. And the popcorn tasted really good too.”

“And what about the other stuff?” Megan prompted, holding up her hand, clasped with Hiro’s.

Trina gave a little blush. “That was nice too. But do people hold hands all the time when they go to the movies?”

“Not all the time,” Hiro said. “And usually it’s only with the person they’re going out with.” Trina’s blush went just a little deeper. “But I think we can bend the rules a little. You’re new to all this stuff.”

Karmi and Megan both nodded in agreement.

“And kissing?” Trina asked. She had seen Hiro kissing the other two girls but he hadn’t made the same attempts with her. “I noticed the three of you kissing but none of you tried to kiss me.”

It was now Hiro’s turn to blush. “Um. That’s definitely a boyfriend-girlfriend thing. We can kiss because we’re dating each other. To kiss someone else like that, even if they’re a friend, would be ... inappropriate.”

‘For now,’ Megan stealthily mouthed to Karmi, getting a smirk in response.

On the weekend, only a couple of days later, Trina was treated to another first: a trip to the beach.This time all their friends were able to join in, and with it only being late May, the crowds were still pretty low so they would have lots of space to themselves. The night before, Trina did have a bit of a dilemma when she realised she didn’t have a bathing suit of her own.

“Would it be okay if I borrowed one of your bathing suits?” she asked, poking her head into Hiro’s room while he and the other girls were putting together their own beach stuff.

“Sure!” Megan said. “In fact, I have the perfect idea!” Rather than go grab one of her bathing suits, she came over and began whispering with Trina, explaining her idea to the other girl.

As Megan spoke, Trina gave Hiro plenty of glances, and at one point her eyes went wide in surprise. “I can do that?!” she asked, loud enough for Hiro to actually hear.

“Yep. And I guarantee Hiro will love it!” Megan replied, giving Hiro a sly grin.

Trina looked at Hiro, then at Megan, then she smiled as well. “Okay!” she said, a smile forming on her face as well.

“Would either of you care to fill the rest of us in on this plan of yours?” Hiro asked.

“And spoil the surprise? Not a chance!” Megan said, her smile growing.

At the beach, they moved a few picnic tables together to keep all their stuff, then they set out their beach towels on the sand and began taking off their outer clothing, stripping down to their swimwear. It came as no surprise to Hiro that most everyone wore the same bathing suits they had brought on their trip to Fred’s resort, including Baymax, which made him chuckle. Trina’s choice of outerwear was strange though, as she was wearing what looked like one of his own bathing suits as her shorts. When Megan and Trina removed their shirts, however, he nearly fell over in shock. Neither girl was wearing a bikini top! He had seen Megan’s breasts countless times so he couldn’t prevent his eyes from automatically focusing on the new: Trina.

“Uh, Megan? Trina?” he managed to say after a few seconds, trying not to stare. “Did you perhaps forget something?”

Megan put on a thoughtful look. “No, I don’t think so,” she said, nonchalantly twisting her body back and forth, making it impossible for Hiro to not look at her chest.

The others then began to notice the girls’ state of dress. “Oh my god! Is this what you were planning?” Karmi asked, both scandalised and amused.

“Aw, sweet!” Fred said, making no effort to avert his gaze.

“Nice,” GoGo said with a small grin. “So, are we all going topless, then?”

“I’d be okay with that,” Olivia said.

“No thanks!” Honey Lemon protested, putting her hands protectively over her own chest.

“Why are you acting shy, Honey Lemon?” Megan asked. “You didn’t seem to mind letting others see you totally naked at the resort.”

“Yes, but everyone else was naked too. Plus, aren’t there rules about public decency or something?”

“There were laws preventing women from going topless but they were changed in 1996,” Baymax announced. “The current laws state that a woman can go shirtless anywhere a man can.”

Honey Lemon was a bit surprised at that. “Huh. But still, I’d rather not.”

“Me too,” Karmi said. “Considering what we’ve already done together I’d do it if it was just us, but I really don’t want a bunch of strangers staring at my tits all the time.”

“Oh?” Trina said, curious. “What did you guys do together?”

Megan gave Trina a naughty smile. “Sex,” she said. Everyone else couldn’t help but blush.

Trina’s face lit up with interest. “Wow! Really? I knew Hiro was lovers with you four,” she said, gesturing to the girls in question. “But I didn’t know you were all-”

“We’re not!” Hiro interrupted. “I mean ... yes, we had sex, but not WITH each other. Just ... next to each other.”

“Yes,” Olivia agreed. “I’ve seen Hiro ... perform, but haven’t had the pleasure of experiencing it myself. Yet,” she added with a wink.

“Yet?” Trina asked.

“Olivia has this fantasy of having an orgy with all of Big Hero 6,” Fred told her.

“Oooh. Kinky!” Trina said with a smile, then she realised something. “Wait, you said you haven’t done it with Hiro, but does that mean you and Wasabi ... and the girls ... and even Baymax?” she asked Olivia.

The other woman grinned. “Mostly. It’s only been kisses and a bit of groping so far with the girls, but I’ve been with Wasabi, and yes, Baymax,” Olivia said with a smile, which made Trina stare questioningly at the robot. Specifically, his groin.

Seeing her expression, Baymax deduced why she was confused and so explained. “While I lack the physical components to engage in intercourse, I have used my hands to provide Olivia with numerous orgasms.”

“Numerous?” GoGo said. “I know things got pretty wild that last day on vacation, but I don’t think Baymax gave you enough orgasms for it to be considered ‘numerous’.” She then raised an eyebrow at Olivia as a thought occurred to her. “Wait ... have you been hooking up with him since we came back?”

“Maybe,” Olivia said, the corner of her mouth upturned.

Wasabi turned to look at their robotic friend. “Seriously?” he asked, shocked.

“It is improper to discuss one’s sexual activities without the consent of those involved,” Baymax replied, answering the implied question of why he never said anything.

“Can we please go back to the issue at hand?” Hiro said, feeling somewhat embarrassed about talking so openly about their sex lives. “Megan and Trina are topless.”

“Is that an issue?” Trina genuinely asked. She didn’t really have the same hangups about hiding her body that some of the others seemed to have. She liked being naked in the shower, and now that she was topless around other people, she found she liked that too. She especially liked how Hiro couldn’t seem to keep his eyes off of her breasts for more than a second or two.

“I guess ‘issue’ might not be the best word,” he said. “Maybe ‘distraction’? And not just for me,” he added, nodding towards another group of beach-goers. One of the guys in that group had noticed the topless teens and was nudging the nearest guy and pointing with his chin. It took a second for the other guy to register what he was looking at, but it was obvious when he did because a huge smile suddenly appeared on his face. One of the girls of their group noticed too, and promptly gave the two guys a swat to the back of their heads.

“I suppose we can cover up the girls,” Megan said, “if only to not cause those guys trouble with their friends.”

“Okay,” Trina agreed. “I guess I should get out of this bathing suit then.” She then grabbed the trunks she was wearing and began to tug them down. Hiro’s heart leapt in his chest as he thought for a moment that Trina was going to get naked right then and there but when the trunks came down he saw she was wearing some bikini briefs under them. Clearly she had prepared for this eventuality.

 
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