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Part 2 of Sexful Domain
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2022-10-02
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Mechanical Love

Summary:

Starlight Spear has a specific need, and she's growing more and more desperate now that her previous partner has retired. Her manager suggests Steampunk Princess as a last resort.

Notes:

This short story was written for Kinktober 2022.
October 2nd: Fucking Machine

All parts of the series are set in the same world where magical girls are extra horny and sometimes can grow dicks.
Each one can be read as a one-shot, but there will be a loose overarching narrative, and obviously other stories with the same characters will be sequels to the previous ones.

Work Text:

Mingxing's life had taken quite a wild turn after becoming a magical girl. There was of course the whole business of transforming, gaining superpowers, and fighting monsters every night, but that was kind of expected of her new position. Besides, everyone knew that about magical girls: It was all over TV, newspapers, and in every little girl with dreamy eyes' mind. What the public doesn't know is that a magical girl's powers come at a price... Or maybe with a caveat? Every girl who had the dream agrees that it's better to keep it under wraps, and a good portion of the budget of organizations such as MGSI and MGB is devoted to keep this secret.

Magical girls are horny. Very horny. While they don't need sex or sexual-adjacent activities to use their powers per se, the frustration that follows unappeased urges drastically affects their mental health and, consequently, their battle capabilities. In short, making sure magical girls are sexually gratified is in everyone's best interest, and so is keeping their public image clean and pure. Achieving this is usually not that hard since the magical girls are more than happy to indulge in their increased libido with one another, but that's not always the case. While magical girl teams tend to naturally form with compatible couples (or groups,) some are unable to get enough from their partners due a vast array of reasons like tendencies, sexual interests, personal grudges, or simply incompatible personalities.

For Mingxing, the reason was a lot simpler than that: She needed cock, and there simply none to be found in Team Spear other than her own, a fact she always found extremely ironic... Why would a trio wielding freaking spears didn't have a triplet of matching cocks? She was more than glad to fuck Mitsuki and Leana, sometimes even together, and it felt really great, but she needed some real action inside of her as well. She had tried dildos (both on her own and with her teammates) as well as strap-ons, but they never really did the trick for her. She also dated a guy for a time, but boys simply didn't have the stamina to keep up with a magical girl's libido. To make things worse, most girls with dicks were busy enough with their own teams, just like she was with her own, and the vast majority of solo girls were already matched with one another and in relatively stable relationships.

She begged their manager to find her someone that could give her what she knew she needed, and after a long and strenuous search, she was put in contact with Devil Darts, a fiery solo redhead with a matching fiery cock. Mitsuki had found a boyfriend (of all things!) around the time, so she could easily divide her attentions between Liana and her new companion. Their first encounter was a bit awkward given the circumstances, but Marika (that was her name) quickly took the lead and gave Mingxing's pussy the furious pounding it had been craving for months. The solo girl was also quite frustrated, as she had been looking for a partner for a while herself, and thus a very satisfying relationship for both of them was born. They learned to make love to each other, they experimented a lot, both gave and took in turn... But in the end, what Mingxing discovered she enjoyed the most was something very simple, an unusual occurrence according to the tales she heard about other teams and couples. She loved having sex in the missionary position, untransformed (so that pesky cock she didn't even ask for wasn't in the way,) locking her legs behind Marika's back as she viciously pounded her pussy like her life depended on it. Being filled up with her hot loads at the peak of arousal, her cock throbbing wildly inside of her as she pumped her semen, gave her some of the best orgasms of her life.

Everything was just wonderful... Until Devil Darts retired. Magical girl retirement is a bit of a misnomer for the uninitiated; just as they suddenly get their powers one day with the Dream, they completely lose them after a variable amount of time. Their libido also returns to fairly normal levels, although there are many cases when girls have a hard time adjusting to a much less active sexual life. But, more importantly in Mingxing's case, they lose their cock together with their ability to transform. It was a disaster... She still enjoyed sleeping with her good friend Marika every now and then, but the former magical girl didn't need it as much as she needed it before, and she couldn't give anything back so to speak, something that the only cock-wielding girl of Team Spear craved more than ever after having thoroughly enjoyed it for a long time. Shortly after learning of her sex friend's retirement, she rushed to her manager to beg for help in finding a replacement. She was the one who hooked her up with Devil Darts in the first place, after all, maybe she'd get lucky again.

...Unfortunately, she did not. Devil Darts was the last registered magical girl with a dick who reported having any free time for another partner in her schedule to the MGSI. There was always the option of chancing upon one of the rare unregistered girls, but those tended to keep to themselves... She could have also tried to seduce a girl from another team, but she didn't want to break anyone up; besides, she didn't think she had the looks to pull it off. Sensing her desperation, her manager decided to share one last option, although it was nothing more than a shot in the dark...


Mingxing knocked at the door of Steampunk Princess' lab. She waited a few seconds, but no one answered. She raised her hand to knock again, when she heard a lock turning, then the door swung open.

"Come in, sweetie! I've been waiting for you."

Her manager had shown her a picture of the solo magical girl, so she already expected her white hair, the small nose slightly perked up, and the overall nerdy looks. She was still wearing her school uniform, so no surprise costume either. What she didn't expect was how... tiny she was. Hadn't she checked her age on her dossier, she would've placed squarely in grade school.

"Hmm, yes, you'll do just fine. I'm glad the measures on your dossier were up to date."

"So, um... You're Steampunk Princess, right?" asked Mingxing timidly. While both of them knew exactly her reason to be there, that didn't make it any less awkward for her to admit it in front of a complete stranger.

"Oh, please, call me Becca! And you're Mingxing, right? Hopefully my manager didn't butcher your name, because I'm just repeating what she said."

"N-No, that was perfect..."

Becca quickly clapped her hand twice and smiled, clearly happy for her small success. She then turned around started rummaging in a pile of stuff in one of the many shelves. That gave Mingxing a moment to breathe and to look around. The room was fairly large and bathed in a dim yellow light emanated by the strange oblong bulbs hanging from the ceiling from what seemed to be their power cables. Two of the walls were entirely lined up with shelves packed with strange gadgets made of wood, leather, brass, bits of glass, and other ancient-looking materials. She knew that Steampunk Princess' powers had something to do with gadgets and steam machinery, but the girl apparently spent most of her free time tinkering with them by the looks of it. A large workbench and a rack of weird tools and instruments covered the left wall. Then, a couple of chair and a low table, presumably for tea breaks or the like, and, a little more to the side, a single... armchair? throne? Whatever it was, it was very conspicuous. Mingxing took a step toward it, drawn by her curiosity, when she was startled by the other girl as she resumed talking.

"All right. We both know why you're here, so let's not beat around the bush." Becca quickly brought something from the shelves and placed it on the workbench. She then turned around and, while making an unequivocal gesture with her fingers, said: "You want this, right?"

Mingxing blushed at the bluntness of the magical girl, and it took her a full second before she could nod. "Although, well... You've clearly seen my dossier, so you know that I-"

"Yeah, yeah, my manager told me everything." Becca took a few steps toward Mingxhing until she was in front of her. She then took her hands, gently separating them from one another as the nervous girl fidgeted, and said: "Don't worry, I'm gonna make love to you tonight." She then smiled gently, if a bit mischievously, and planted a kiss on Mingxing's lips as she squeezed her hands.

Mingxing's eyes shot open as she could feel the heat rush to her face. Her previous partner had been a very proactive kind of girl, but she wasn't used to that absolute disrespect for boundaries and conventions. On the other hand, she was so starved for cock that her confident words made her melt a little. Becca left her hands and went back to the workbench to tinker with the whatever she had brought there.

"S-So, um... How is this gonna work? I know you don't have a..."

"Oh, yeah, no cock here. I'm exactly the same when I transform... Well, except for my suuuper cool costume. No, you'll be using one of my favorite machines. You know I can make and operate steam machinery, yeah? Well, I'm a solo girl, and I mean truly solo... I ride alone, both out there in the night, and in bed."

"So why did you agree to do this? Since you always run solo, that is..." Becca grabbed a wrench from the wall and started using it on the device she was working on before replying.

"Because I know the predicament you're in! Or, well, I'd know it if I didn't have my machines." She then let out a satisfied "Hah!" as she hung the wrench back on the wall. She stared at her workmanship for a couple of seconds before turning around again and returning to Mingxing.

"Besides," she continued as she embraced her guest, one hand on her neck and the other on her bottom, "I think you're a real cutie..." she whispered in her ear, closing it up with a flick of her tongue and a butt squeeze that caught the already flustered girl completely by surprise. She gave her one last kiss on the cheek before breaking the embrace with a giggle and taking her hand. "Come! Let me show you." Mingxing had no idea what was going to happen to her, but she thought that she could get used to her boldness if it meant being pampered like that.

Becca led her to the other side of the room, where the chair thing was. Upon closer inspection, Mingxing saw that it only resembled an armchair from afar... While the back seemed fairly normal, the arm and leg rests had leather straps clearly used to tie the occupant up, and the seating... Well, the wood was only to either side, with a huge gap in between and some odd machinery inside the hole partly obscured by darkness. Is that what Steampunk Princess wanted her to use?

"Here she is! What a beauty, huh?" Becca walked around the machine while caressing it before returning to Mingxing's side.

"Is... Is it safe?" she asked tentatively.

"Oh yes, very safe! And veeery satisfying. I talk from experience..." Becca then turned toward her, stepped on the tip of her toes to reach her ear, and whispered. "Don't worry, I've cleaned it up after the last time it fucked my brains out." As she stressed the last words, she slipped her small hand between Mingxing's legs and gently but decisively pressed her fingers against her guest's pussy, pleased to find her panties already slightly wet. On the receiving end, Mingxing shivered a bit and stifled a moan between her lips as she closed her eyes, already anticipating the coming pleasure. She was more than happy to let the girl take the lead, and didn't pull away from the hand circling against her crotch, but gently pushed against it instead.

"Oooh, someone's eager. That's very good..." she said as she pushed the palm of her hand against the curve of Mingxing's pubis, making her breathe out a shaky sigh.

"All right then, why don't we get started?" said Becca, letting go of the embrace. "Go ahead and transform."

Mingxing quickly recovered a bit of composure and looked at her slightly confused. "Wait... Why should I transform? I thought we were doing... the other thing."

"Oh, yeah, you don't need to transform. I just kinda wanted to see the goods, you know? Maybe even lend a hand myself." she then added shaking a closed fist up and down before her chest.

"N-No, that'll be fine, thank you..." Mingxing replied as she looked to the side.

"All right, suit yourself! Well, un-suit yourself too. Skirt and panties off, chop chop!"

Mingxing turned around to remove her panties and skirt, even though she had no way to hide herself from Becca. She then turned back, covering her crotch with her hand, and hesitantly headed toward Becca and the chair.

"There's no need to be shy, dear!" she said as she gently caressed Mingxing's naked butt. "You'll be singing for me in just a couple of minutes, anyway...", making her rosy cheeks turn an even brighter shade of red.

Becca helped Mingxing sit on the chair, strapping her legs and wrists to it. She then moved behind her and strapped her abdomen too, using a large leather belt that was attached to the back of the chair, which had previously hidden it from sight.

"All right, here's how it's gonna work." Said Becca as she knelt beside the chair and opened a panel. Mingxing could hear her tinker with something underneath her, probably adjusting something with the angle and positioning of the machine, since their body sizes were quite different. "You'll find a switch near your left hand and a knob under the right. The switch turns the machine on and off, and-" Mingxing felt something hard and smooth touch her wet pussy, and the contact made her jolt.

"Oh, sorry! I was just adjusting this thing for you. Everything's fine." Becca closed the to the side of the chair and walked to the front, looking at Mingxing's hand. "Yeah, this one turns it on and off, and the knob here increases the speed. Pretty easy, right?"

Mingxing felt the knob and switch with her fingers. They were right beneath her hands, and they felt solid and small enough for her to activate with ease even in a pinch. She looked at Becca, who was standing in front of her, and nodded.

"Well then, what are you waiting for? Turn it on, give it a spin!" Becca said, clapping her hands together. "Flip the switch, wait a few seconds for the steam to fill the pressure chamber, then turn the knob!"

Mingxing swallowed. Becca's teasing had really turned her on, so she was more then ready to get started. It had been weeks since the last time she had been fucked in earnest, and she couldn't believe it was finally time again. She felt very vulnerable, strapped to the chair like that, but that somehow only made things more exciting for her. At least she still had full control on the machine, which made her feel at least somewhat safe.

When Mingxing flipped the switch, the machine beneath her throbbed and groaned, slowly setting in motion. A loud hiss startled her. It was a steam release valve, releasing a cloud of hot vapor to her right.

"Yeah, sorry about that! That's how all my machines work. You'll get used to the noise in no time, I promise." After a few seconds, the clunking and hissing seemed to stabilize, and the whirring noises were reduced to a low droning. Mingxing could feel her heart beat fast in her chest and ears, face flushed with warmth, and that stiff presence against her pussy that had never left after Becca placed it there. She eyed the knob near her right hand, then took it between her index and thumb.

Without taking her eyes off the knob, she asked Becca "So... Can I start it now?"

"Go ahead, sweetheart." replied Becca, leaning in to softly kiss her lips.

Mingxing turned the knob.

The presence against her pussy began pushing up and up against of her, slowly spreading her lips. One moment later, it began sliding inside of her. Mingxing gasped as her body jolted, instinctively trying to pull away. She wanted it, but she was extremely jumpy and didn't know what to expect. When the straps held her firmly in place, she completely panicked and slammed her palm on the left arm rest, flicking the switch and turning the machine off. The machine fell completely silent after one last drawn out hiss, and the pressure against her pussy relented. Mingxing's eyes were wide and still glued to the switch, her breathing short and ragged.

"Ssh, ssh, it's okay!" sad Becca, who stepped forward to take the startled girl's head into her arms. She kept an arm around her head while she patted her hair with the other. "Being scared is normal. You're not used to my machines at all, they're big and loud and scary. And while you've had sex before, this can totally seem like a completely different thing..." Mingxing found her voice soothing, and her hug warm and calming. She was just beginning to relax again when Becca broke the embrace, but she didn't go very far.

"How about this?" she said while taking Mingxing's flushed face in her hands. "I'll be right here with you the whole time, and you can imagine it's my dick. What to you say?" Mingxing had somehow failed to realize how cute Becca truly was... The idea of that girl sliding her throbbing member inside of her and making love to her made her heart skip a bit. She nodded, enjoying the cool skin of her palms on her hot cheeks as she did so.

"Okay then. Turn it back on, sweetheart." said Becca, returning the knob to its original position. Mingxing swallowed, pressing the switch under her left hand while still looking Becca in the eyes. The machine resumed its clunking and whirring underneath her, until it stabilized once more a few seconds later.

"Are you ready? I'm gonna put it in now." said Becca, staring intently into Mingxing's eyes with her hands still on the girl's cheeks. The situation was somewhat absurd, and yet Mingxing felt so enamored with the girl in front of her. Her energy, her cheekiness, the way she seemed to be in total control in every situation, and underneath that all, her sweet and caring heart that had saved her from the brink of a panic attack.

Mingxing nodded without breaking eye contact. She then bent forward a bit and began closing her eyes, trying to communicate her need for a kiss without explicitly asking for it. Becca didn't say a thing, and kissed the heated up girl strapped to her chair. Her lips parted, and she gently probed Mingxing's with her tongue. Those yielded immediately, spreading to welcome her in her mouth. Becca tilted the head a bit to lean into the kiss, keeping it slow and sweet. She removed her left hand and took it to the armrest.

Becca turned the knob.

Mingxing groaned into Becca's mouth as the machine's large dildo pushed upwards, spreading her lips and then slowly, oh so very slowly sliding inside of her. Becca gently broke the kiss and they both opened her eyes. She smiled, and said: "Can you feel me?" while caressing the other girl's arms. Mingxing feebly nodded, her entire attention focused on the large presence slowly climbing up inside of her and threatening to take her breath away. Her breath finally caught in her throat before she released it in a longing sigh when the machine halted with a hiss, and the mechanical cock suddenly filled her up completely. Mingxing was merely strapped to a hot and steamy chair, but this time it felt like being held tight in Becca's embrace as she kept her dick firmly pushed inside of her. She couldn't help squirming a bit, trying to push her hips down and drive it even deeper, but the wooden seat wouldn't yield.

Knowing the machine's pace very well, Becca knew she had to talk in order to keep the illusion up. "I'm gonna take it out slowly now, then we'll pick up the pace a bit, okay?" Mingxing's eyes seemed out of focus for a moment, but then she looked straight into Becca's, and quickly nodded in a hasty reply that reeked of desperation. "Good girl." said Becca caressing her cheek. The machine clunked again, and it began pulling down, retreating from Mingxing's depths at an excruciatingly slow pace. Her head bowed as she moaned, the rugged surface of the dildo sliding against her clenching walls.

Once it was fully outside of her pussy with a metallic clunk , Becca placed her right hand behind Mingxing's neck and said: "Here we go..." before turning the knob a bit more with her left. The machine clicked a couple of times, switching gears, then the dildo underneath her began pushing up once more. It was much faster this time, filling her up in under two seconds with a smooth motion. Mingxing threw her head back, leaning as much into the chair as into Becca's hand still on her neck, letting go of a low and throaty moan. She didn't have time to dwell much on the pleasant feeling starting to spread inside of her that the machine pulled back again, just as quickly as it had moved the when it went in.

And just like that, Mingxing was being slow-fucked by the machine. She matched her breathing with the mechanical rhythm, then turned her head to the side to rub her cheek against Becca's arm, longing for physical contact. Becca guessed what she wanted, and leaned in to kiss her while she caressed her thighs. It was a much deeper and passionate kiss this time, one more fitting the faster pace of the chair. The machine's dildo continued sliding in and out at its deliberate and steady place, and while Mingxing couldn't really move her hips to lean into the motion, she certainly tried.

"There's no need for that." said Becca, breaking the kiss when she guessed what Mingxing was trying to do. "Just give in to it, and let me do everything." Becca caressed her cheek again, gently rubbing it with her thumb. "Do you like it?"

Mingxing had started sweating, and the hair matted her forehead. She seemingly was having a hard time focusing, as she didn't reply immediately. Her eyes then moved up to meet Becca's, and said: "Y-Yeah, it's... amazing..."

Becca smiled. "I'm glad! But it also seems like you really needed this." Mingxing took a sharp breath as as the dildo slid back up inside her, and moaned hard as it pulled back out once more. Becca straightened up and stretched her arms upwards as her new friend continued being slow-fucked. She admired the wet mess her machine was making of her, then said: "Are you ready to get serious now? I'm getting kinda close..."

Mingxing looked confused for a moment, then her eyes shot wide. Was there more of that? Then her eyes darted to the knob under the fingers of her right hand. Of course there was more... She had forgotten this was a machine, it wasn't actually Becca fucking her. And she had the power to make it stronger... Her trembling fingers grabbed the knob, but she hesitated. Unease at the unknown budded inside of her, and she started feeling scared, even as she was dying to be fucked harder, as the nugget of pleasure inside of her was steadily growing in size inside of her. But what if--

"You can do it. I know you can. And I'll be right here with you." Becca hugged her head again, gently caressing her damp hair. Her gentle and warm presence calmed her down a bit, but did she really have it in her? Who knows if she could take it...

"I'm gonna fuck your brains out now, Mingxing. Are you ready?" Becca moved down to whisper in her ears. That snapped the illusion back in place, and Mingxing's hips shuddered at the thought of being plowed by Becca's cock.

Mingxing turned the knob.

The machine pulled out one more time, then shifted gear with a clunk , and... Mingxing screamed when the large dildo was mercilessly shoved all the way inside of her by the machine. The sheer impact made her jolt as her head jerked back, and she screamed again once the same cock was pulled out of her a moment later. Then back inside, and out, and in, and out... Mingxing was being fucked at a pace she had certainly experienced before with her ex girlfriend, but never so... precise, methodical, and undefatigable. It was a powerful force coaxing the pleasure our of her one powerful thrust at a time. The noise and hisses were long gone from her mind, her only focus the delight that threatened to explode inside of her any moment now...

Becca's legs rubbed against one another as Mingxing came, the strapped girl's entire body shuddering under the pleasure waves of a very powerful orgasm as she let out a long and sustained wail. Seeing the other girl's pleasure well up and grow before her eyes had turned her on immensely, and she was dying to touch herself, but instead kept her in that embrace. This was her first time, it had to be about her.

As the girl's orgasm waned and her breathing slowed, Becca stepped back to turn the knob down one notch, and after a few more seconds, all the way back to the first speed. She knew the dildo was very slowly moving in and out of her, something she hoped Mingxing would enjoy as much as she did during the tail end of her own orgasms.

Mingxing's head was hanging, her body entirely abandoned on the chair. Only a few shivers ran through her, whenever the mechanical cock slid back inside of her, accompanied by a satisfied moan.

Becca moved back in and kiss her gently. Mingxing kissed her back, and they continued these postcoital effusions for several seconds. Then, Becca pulled back a bit, looked her in the eyes, and said: "Well, sweetheart? Was it good?"

Mingxing's eyes were half closed, still not entirely there in mind. She then licked her lips, moved forward for a quick kiss, and said: "It was amazing, Becca..."

She leaned back and stretched her neck by bending it left and right. She then took a deep breath, held it in for a couple of seconds, and exhaled.

Then, she took the knob between her index and thumb. "Do you mind if we go again?"

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