My Hormonal Control Quirk

"You sure were wagging your little tail all the way back home, you nympho.~"

"Shaddap…"

"You've got quite the attitude today."

Sighing, Rumi wrapped her arms around Felix's neck and brought him to her, lying on the bed in her lingerie. It was only a modest debut, but she was trying to choose clothes that highlighted her muscular curves and build.

"Muah…~🎔"

Nothing new, but she was still as untamed as ever. It was safe to assume that her quirk influenced her behavior in more than sexual ways. Given that he sometimes uses her meta-hormone, he safely assumes that she suppresses her prey instinct and tries to be a predator. Well... she can't really do that with him, as they both know their natures.

He was quite sure she could feel that he was a danger. It made everything even stranger. She knew it. She witnessed how he used other people for his survival. She knows he can't be satisfied just with her... But still, she's still here.

That's why she's an unpolished diamond.

—I don't really know if it's for the best... but I like her like that. I just need something to... keep her on a leash.

It's not like he was against having a fierce girl at his side, but still... It was like trying to control a wild animal.

That said, despite all of that, she wasn't a top.

In most cases, even if some rare women like being the dom, most of them highly prefer a man who dominates them in bed. They just engage in a battle of dominance. It's a kinda bullshit test where they'll try to see if the dude can win the fight for dominance.

If the guy can't, it can be a massive turn-off for many women.

The secret is to be in shape—at least a bit.

"Surprised ya can still fuck with these bandages all over yer body..." She said, biting her lip. "Ya're sure ya can do this?"

"Always."

"Mm... Aren't ya a bit more toned than before…?"

"Yeah, I'm pretty proud of that, to be honest. You're still more muscular than me, though." He whispered close to her long, fluffy ear, making her shiver before sliding her ear toward his face, caressing him with it as she touched his stomach. "In fact, you kicked me in the balls twice during those training sessions."

"Er… It's… It's dated now." She grumped, avoiding his gaze. "Don't tell me ya're still holding a grudge over that…"

"I don't think you realize how much strength you have in your legs."

"C-Come on, don't be a sissy n' just fuck me… It's not like yer balls fell off…"

"What if they fell off, though?"

"…"

"Yeah?"

"What is wrong with ya!? Fuck me, fer fuck sake!"

"Miss Mirko is quite impatient tonight." He hummed, bopping her nose. "Your accent becomes thicker when that happens."

"Miss Mirko...? Coming back to yer old habit just to piss me off...?"

"Be happy I don't call you Ma'am. I could, actually. You're five years older than me."

"My age is none of your concern, dumbass! Piss off..."

"You literally break my balls sometimes, aren't we even?"

Scoffing at his words, Rumi moved a bit from side to side as Felix's fingers came out of her cunt.

Since they hadn't done it for quite some time now, she was oversensitive, but sadly for her, he had no plan of releasing her from any of her carnal desires—revenge for his poor balls.

—She's gonna hate my gut... But after just one month of this, I wonder what she'll be willing to do in exchange for the dangling carrot.

"Look at you. You're that pent-up already."

"Ya're one to talk..."

Rumi was already all wet. The bedsheet below her crotch was drenched, and her nipples were erect under her lingerie. Breathing heavily, eyes watery from excitement, whole body shivering...

She was just that riled up.

"You're in heat, right? It's been a while since I've seen you like that."

"Y-Yeah…"

"Aren't you supposed to be a big girl?" He chortled, kissing her neck. "Look at you, wetting the bed at your age…"

"Shut yer stupid mouth... and fuck me... I hate you..."

"Can you even?"

"Hmph!"

"Tsunderirko."

"..."

"What?"

"—Shaddap! Stop talking! FUCK ME!"

"Geez..."

After seeing he was laughing at her, she frowned before locking her legs around his waist, pressing her thigh with such force it made his vertebrae pop.

"Ya stupid moron! Don't laugh at me!"

"Dammnit...! You're not you when you're horny—"

"FUCK ME! FUC-"

Putting a hand on top of her mouth to shut her up, he plunged his cock inside her to stop her yelling. Manami already complained too much about the noises he was making, so... better avoid further problems.

Plus, it's not like he could undo her leg lock anyway. She was just that strong, so he drove his cock hard into her with no warning whatsoever, taking her by surprise.

"Kya!"

"...Sometimes, I forget that you can be feminine."

"Moron...!"

"Hey! Stop biting my hand!"

"Grrr..."

"Well..."

Rough sex, huh? That was what she craved. So be it, then. Too bad she won't get anything in the end.

He squeezed and kneaded her breast, sending shivers through her spine every time. Her hypersensitivity was only worsened by her heat and the super-hormones he started pumping into her body. Meta-endorphine and oxytocin were sufficient, but he added some extra dopamine to enhance the effect even more.

She'll end up even moodier. That's actually what he was after. It's all about getting under her skin.

As he gripped her hips hard, he plowed into her with everything he had, making the bed shake and her muscled ass wobble. It was physically taxing to manhandle a brawny woman like her, but dominating someone that strong was a nice feeling.

"Grrr...🎔"

Taking his hand back to her mouth, she put one of his fingers in her mouth, sucking on it before biting him with a provocative smile.

"Stop biting me... You got rabies or what— Hey! You little..."

"Hehe—! WH—!"

Burying his cock to the hilt in her hot cunt, again and again, he made her yelp of joy.

If she would let go of his finger, then he was just gonna force her with his cock. He rammed deep into her... It was... a strange but wild passion that he never really felt before. Well, maybe once before. With the only girlfriend he ever had back in Canada...

—Why am I thinking about her now...

Wiping her face from his thoughts, he continued to fuck Rumi wildly as her hair fell in front of her face, now stuck because of her sweat. He could feel that she was already aching for an orgasm. And he was ready to send her as close as possible to it. Before stopping everything.

And doing it again.

"I—I'm c-cummin-!"

"No, no..." He whispered, touching her clit. "You're not."

Stopping the dicking and sending tons of meta-cortisol into her while sucking out her oxytocin and endorphin did the trick. The orgasm was successfully stopped.

It wasn't a hard trick, especially since he already did it with Kaoruko and some other girls before, but if he fucked up the timing, she would have reached her climax for sure.

Too bad her squirting will have to wait for some time.

"W-Why...?"

"Why what?"

"J-Just let me cum... Y-Ya knows it fuckin' need it more than anyone..."

"Alright, alright. Come here."

Faster. Harder? He actually put everything into his thrusts again. Plowing into her with powerful strokes. Even without reaching orgasms, it would be enough for any girl to feel good.

With every thrust, he felt her pussy clenching around his cock, massaging him. Still in her legs log, he kissed her to make use of his hormones more easily. She was quivering, and with how hard he was going at it, each of her... denied orgasms came in quick succession. 

With Felix stopping every time.

However, even if she believed he would eventually cum and give her what she wanted, never once did he give her his tasty seeds.

"C-Come on!"

"Well, why aren't you cumming?"

"You fuckin' moron!"

"Haha!"

She had no idea how much time had passed.

She lost track of time.

And with how hard they fucked, the clock hanging on the wall fell off to the ground.

Her ragged breathing was even worse than when she tried to outrun Hawks during a hero competition. Because of her heat, she was also unusually covered in sweat... and Felix was against giving her some help.

This sex session transformed from one of their normal, sexy encounters into a kind of sexual torture.

And she wasn't happy about it. In the slightest. 

"FELIX!! WHAT IS YER FUCKIN' PROBLEM, FUCKIN' MONGREL!?"

She jumped on the bed on two legs, still wobbly, and kicked him in the shoulder, sending him flying out of bed.

"See...? That's the problem—"

"NAH!! YA'RE THE ONE WITH A FRICKIN' PROBLEM! DID THE COMMISSION CUT OFF YER BALLS!?"

"Hey, calm down. It's 3 a.m..."

"SO YA'VE BEEN EDGIN' ME FOR FIVE HOURS!?"

"Chill. It's just a prank."

"...just a prank...?"

"Mhm."

"I'M GONNA WIPE THAT STUPID SMIRK OUT OF YER FACE...!"

Hopping like a rabbit from the bed to him, she landed on his crotch, trying to continue what they were doing, her mind clouded with lust. However, thanks to a little trick of his, he wasn't hard anymore.

Secondly, he put something cold on her pubis. Given how sweaty she was, her whole body shivered.

"W-WHAT ARE YA DOIN!?"

"What you did is sexual assault, right?"

"SHADDAP! ...What's that!?"

"A chastity device? Something discreet enough to be worn even under your hero costume."

"How did you get that stupid thing, you FUCKIN—"

"Shush." He chuckled, putting a finger on top of her lips. "I asked Mei to create this little thing for you. Since you're so stubborn and violent, I figured keeping you on a leash for a while would be for the better."

"I'm not stubborn nor violent!"

"Yeah? What about the kick from a minute ago? When you don't hold back during training? The leg locks? The time you tried to strangle me? The insults? Hm? I was nice enough to still fuck you after our training sessions, even after coming back from the hospital... But this is enough."

"W-What do you mean...? Th-This is enough...? What does that mean...?"

"I won't fuck you anymore. This is the end."

"W-What...!?"

Her long, fluffy ears flattened on each side of her head, her angry face fading into a blank one, her eye staring straight at him from above. She grabbed him by his unbuttoned shirt and pulled him back to her. Her eyes were alarmed as she held back her tears.

"B-But, t-the other day, y-you told me ya loved me..."

"I did, but this is the end."

"T-There has to be something wrong there... Y-Ya lied to me! You l-liar!" She yelped, falling onto her butt after releasing him from her grip. "You d-don't love me! YOU N-NEVER DID!"

"Can you stop acting like a teenage girl and just listen to me for once?"

"LIAR!"

"Put this chastity belt on for two months, and I'll give you what you need. Orgasms so powerful you'll be satisfied for days. Carrot cakes. A kid... I could even buy a guitar and play some for you since you asked the other day—"

"No!"

"Then, this is the end."

"—Mmff... 'kin ahol..."

"Yeah...?"

"Give me dis shit and get it over with!"

"Haha!"

"Asshole..."

Taking a look at it, she frowned, realizing what this thing would actually do for her. Still full of sexual desire, she touched her pussy reflexively, knowing what was about to come.

"I won't be able to masturbate... This's stupid..."

"You can't orgasm on your own anyway."

"...Shut! Up! I'll put on this stupid... little... chastity thing. I'll do this easily anyway." She growled. "To think this Mei girl crafted one of your stupid ideas..."

Pressing the button on the chastity device, a metallic and leathery patch of material extended between her still-soaked crotch, sealing her pussy inside. Only a hole allowed her to pee. Apart from that, her twat was cock-blocked for a while.

Mei actually stole one of Rumi's panties to study how everything had to be arranged. And this was the result. The fascination she had for that kind of stuff since they fucked was kinda scary...

But now, Rumi was blushing like she never did before. It was strange to see her like this. Whatever she felt was one of the strongest feelings she ever felt... thanks to Felix's meta-hormone...

Now, with her sexual cravings left unsatiated and losing this battle for dominance against Felix, she couldn't look at her in a mirror. She felt defeated. Ashamed.

"This... This is humiliating..."

"Come on, it's not that b—"

Running toward her clothes next to the bed, she stormed out of the bedroom and got dressed before leaving in a rush without saying anything or even looking at Felix. She also took back with her the chocolates she had offered him and threw some of Mei's stuff on the ground.

He felt kinda bad about it, but it wasn't that serious anyway.

Plus, he needed these extra steps to ensure his future.

At this point, taking risks was necessary. He couldn't rely only on gut feelings. Thinking she would do anything for him since she liked him was stupid. He needed her to depend on him, not the other way around, as it had been for a while.

She was close enough to him not to sell his ass, but it wasn't enough.

—That's one thing done...

Crouched next to the sofa, Mei looked at everything Rumi had thrown on the ground. A few of her stuff was broken, but most was scattered all around. Her "babies" were sturdy. It was her trademark.

"M-hm!" She exclaimed, picking up a big scrap of metal like one would do with a used handkerchief. "This is broken, isn't it?"

"She really threw the microscope against the wall..."

"Wooo! You got her all riled up!"

"Goddamn..."

"Mirko-chan was furious!" She laughed, tossing some of the pieces of junk in all directions. "Should be able to fix it, right? Mhm!"

"Yeah, it's just gonna cost me, like, an arm and a leg... Or I get a freebie by fucking her, but I'm not too much in the mood these days."

"Ooh... Are your yummy wounds still that painful?"

"I had to keep them open for a while, so yeah."

"You're crazy, hehe!" Mei grinned after picking back up the microscope and dropping it on a table. "So she got that mad because of the chastity thingy, hm? She's even cuter when she likes that! Well! Her blood is even cuter!"

Giving her a serious look, she instinctively stepped back before dusting off her clothes, nodding frantically.

"I swear this is true! Mhm!" She exclaimed, touching her neck, still marked with strangulation redness. "I already told you the blood I took from her was from her blood pouches… Heroes have many of these in different hospitals if they're badly injured and need a blood transfusion."

"Yet you wanted her blood when you tried to dupe me. And you also took Mei's blood."

"Mei-Mei told me it was okay with it if it was for research purposes! And, of course, it's for research purposes! Mhm! Mhm!"

"...Whatever." Felix sighed, advancing toward the door of his flat with a cake he had taken from the fridge a second ago. "Do what you want while I'm not there, but nothing crazy, or my "super yummy" blood won't touch your lips ever again."

"Roger that! OH! By the way, do you know when Mei-Mei will come back? I kinda like watching this forging show with her! It's boring watching it aloooone!" She said as a sort of brown liquid started to deform her shape. This wasn't Mei anymore. Under all of that stood Toga. Smiling and naked. "She also gotta give me my knives back! I paid her to sharpen it!"

"With my money."

"C'mon! Don't be that guy! You've got more than enough money for that!"

"You're living rent-free—"

"Hey! Hey! Can I accompany you outside!?"

"Ugh—"

Shutting the door behind him, Felix heaved a sigh, looking at the door before closing his eyelids to feel, even for an instant, the rain falling onto him and rolling down his neck.

Just some silence. Just a little bit of peace.

Something not steered between lust, wrath, and fear. This was something hard to obtain, especially now that he signed to work with heroes and U.A.

His body and mind were on overdrive these days. Migraine and stress. The girls weren't helping. Mt. Lady was still a pain in the ass, too. At least Kaoruko was the one he could chill with without risking getting either his balls or patience nuked. 

Himiko was something else, too.

He was literally living with his stalker, who could shapeshift into the other women he had a relationship with.

Rumi and Kaoruko still don't know that. Better like that, because... Rumi would freak out and get even more angry at him, especially since she knew about the stalker. She sensed Himiko back when they both ran together to train and back when they were heading out of the love hotel.

—My head freaking hurt, man... My hormones aren't changing anything... And my 9/5 isn't helping...

Descending to the floor below, he rang his neighbor's doorbell. He never thought he would be invited here, but here he was. Especially at this hour.

There was some commotion inside the flat for a moment, and then the door opened timidly, revealing Manami. A little embarrassed, she opened the door just enough to let him through.

"You... You came..."

"Of course. You told me you wanted to talk about something, right? I brought you a cake."

"T-Thanks you very much." She muttered, avoiding his eyes. "C-Come in... Don't stay outside. You'll catch a cold."

Her flat was tidied up. The last time he tried to get a peek, it was even messier than when Mei blew up half the apartment. That said, she was still clearly a shut-in. Hikikomori is the right term.

She lived in the dark, probably not seeing anyone. Probably alone most of the time. A kind of prison cell made of her own volition to protect herself from the stuff outside that already hurt her in the past. He knew that feeling as well.

"Sorry to make you come here at this hour... I usually wake up around midnight, so..."

"I was still awake, don't worry."

"I heard that, yeah..." Manami cleared her throat, unsure how to talk to him. "I-Is everything alright with your girlfriend? I think I... overheard a bad argument..."

"Ah... Yeah. She's gonna be mad for a while. Nothing I can do about it now, though. It's Mei who has the key."

"The key?"

"Yep."

"Whatever that means..." Manami sighed with a smile. "I don't know how I would do in a relationship. It's not like I can understand what you're talking about."

"Being in a relationship isn't hard," Felix explained, giving a piece of the cake he made with Toga. He actually doubted that the red colorant she put in it wasn't a colorant, but welp... This would do for today. "The challenge is keeping the other satisfied."

"Seems like you're pretty good at that."

"Oh? Interested, maybe?"

"N-Not at all!"

"Haha!"

To be fair, Manami was fun to talk to. Contrary to all the crazed girls around him, she seemed grounded and mature. That was a breeze of fresh air. That said, she was quite talkative, especially after a few beers. It almost made one wonder why she never left the house if she had so much to say.

"E-Even back in high school... I... I never managed to use my quirk after my first, huh, breakup?"

"Never?"

"Not once... I, huh, need to love something..." She hiccuped, blushing furiously. "I need to... Then, I just have to say that I love this... person or stuff, and... boom! Power-up! I guess..."

"The power of love and friendship, huh?"

"Is that t-too cringe...or something? Y-You also gonna mock me...?"

"Nah, just wondering how a quirk like that can work."

Hormones. Once again. He knew that. Love is strongly tied to oxytocin... and the three other "happy" hormones. It's likely her quirk activates a strong burst of happy hormone productions and potency in someone's body while buffing all the organs they go through when it happens... If so...

—If so, she can actually be a really strong asset to me... but it's safe to assume the Commission already knows I see her... If I try anything with her, they'll tag her as a danger and get rid of her before they're done with me...

He was maybe egoist, but not heartless. After all, it's not like he chose to be a villain. He just became one because he had to.

Then, he could only try something with Manami once he was done with the Hero Commission. At least, he had to weaken them considerably. Once Mirko gets knocked up, it should be already one step toward that goal.

One of their best heroines having to step out would be a violent blow against them.

—Too bad Ryukyu doesn't want to work with me... for now...

"H-Hey... Do you even listen?"

"No, sorry... Too many beers..." He lied, as he felt more and more sleepy. "You seem tired, everything alright?"

"Just sleepy..."

"You just woke up a few hours ago, though..."

"You also look sleepy. It's not just me..."

"Eh..."

"Hey... You should go to bed..." Manami muttered, while trying to search for something. "Ah, here you are... Felix-san... Take this with you."

"A piece of paper?"

"Not just a piece of paper. I wrote information about a powerful person that might help you get revenge against Hawks... And also revenge for those poor girls he raped..."

"Thanks... How did you pull that up?"

"I'm a genius hacker, hehe! Don't be fooled by my cute appearance."

"The only cute thing about you is your height. You're way more feminine than cute—"

"My height is none of your concern!"

"I feel like I already heard that today..."

"A-Anyway, you should go back. I think we both need to sleep—"

Falling to the ground, Felix stopped her from hitting her head on the table and brought her to her bed. She was already in deep slumber, so he just headed toward the door but decided to remain inside her flat since he couldn't lock the door from outside...

Plus, with the Commission probably lurking, it was better for him to be on his guard and actually stay with her since she was this vulnerable. You don't want them getting inside freely and abducting her.

Still... why were they both so sleepy?

"What the fuck did Himiko put on the fucking cake... Can I catch a fucking break...?"

However, looking at the paper she gave him, his eyes lit up.

A name.

A person he saw on TV... and maybe somewhere else.

A curious reporter.

[Chitose Kizuki]