Gwen Stacy’s Yuri System

Gwen blushed as two more bright lights filled the room. Her hand caused her to pull away, only to notice the two members who were about to change her insides. Her breath couldn’t help but quiver at the sight. “You… you both have two charges… each… so I suggest a… rotation of sorts…” Gwen said, her voice quivering with excitement. She grabbed the two meaty members attached to Jean and Petra and gave them a soft stroke and a tug.

 

Two moans filled the room as Jean and Petra got used to this sensation. Well, Jean, at least, though Petra wasn’t one to masturbate frequently in her old body, so it was still a little odd for her, too. “So, who wants what?” Gwen asked, too horny to care at the moment. Her eyes glazed over with lust as she imagined the experience that she was about to have.

 

Jean decided to take charge, using her telekinesis to position them; Gwen was placed on her back in the middle of the bed, with Petra between her legs and Jean towering over Gwen, her cock smacking on Gwen’s lust-filled face. “Now then, Gwen, how rough do you want us to go on a scale of one to ten?” Jean asked, ready to shove her newly gained member down Gwen’s throat.

 

“Te…ten.” Gwen stuttered but couldn’t control her desire. She wanted to be handled and thrown about and felt she would get it.

 

“Great! You heard that too, Petra?” Jean asked, making sure that Petra understood. And Petra couldn’t help but blush; this wasn’t an experience she ever expected to have, especially in her new body. But she also couldn’t deny her excitement. Who would have thought her childhood friend would ever ask her to spitroast her with another girl? It was something that she hadn’t even dreamed of. Either way, she nodded her head, understanding Jean.

 

“Great. Then let’s get started, shall we?” She said with a grin. “Open wide, Gwen.” she got a response as a moan escaped Gwen’s lips, her mouth opening wide for the member about to enter; before she even got there, though, another intrusion occurred. Her pussy opened with the head of Petra’s cock. Petra knew that they would go hard, but that didn’t mean she wanted to destroy her friend in one go; starting slowly, she made sure that she fit correctly before pounding her bestie.

 

Jean watched on with a smile as the tip of her cock also entered Gwen’s wet mouth; she couldn’t help but groan a little at the foreign sensation. It was a unique experience that she had never imagined happening. Okay, that was a lie. She felt this may be possible when she first heard about the Yuri System. Despite having a reputation as an educated girl in school, just like Gwen, she used to read the odd Yuri book in her downtime. It was how she found out she was bisexual in the first place.

 

On Petra’s end, she couldn’t help but groan in satisfaction as Gwen’s tight pussy was trying to milk her for all she was worth. She had to take regular deep breaths to distract herself from blowing her load too quickly as only ten thrusts in was she bottoming out on her friend, who would be moaning like crazy if it wasn’t for the fact that her mouth was stuffed full with Jean’s cock. Realising that she fit comfortably, with a bit of a groan in her voice, she said, “I’m going to start picking up the pace.” It may have sounded like a warning, but it was more of a declaration; she was fully invested in this and couldn’t wait until she had filled up her bestie with her cum.

 

Jean watched on as Gwen’s tits bounced up and down from the force of Petra’s thrusts and couldn’t help but smile before joining Petra, going deeper into Gwen’s throat as she started to see throat bludge from underneath. It was a mesmerising sight, but she felt she should be doing more now. That was when her sight locked onto Gwen’s member, who was hitting Petra’s stomach with each thrust.

 

Leaning forward, she held her body weight before giving the tip of Gwen’s cock a small kiss. Instantly she was hit with the taste of precum, and with a smile on her lips, she descended onto the cock, looking up at Petra, who was watching in fascination. It was only a minute before Jean and Petra felt like they couldn’t hold it much longer. With a simultaneous grunt, their cocks exploded inside Gwen, painting her insides white with cum.

 

Gwen was on cloud nine as her two lovers emptied inside her. Their previous plays had always been slightly more tame, but Gwen knew she wanted to spice it up sometimes. And sometimes, she just felt a little dirtier than usual regarding preferences. And today, she had the odd fascination with getting spit-roasted by her two girlfriends. Does she think this will be a regular occurrence? Well, maybe not regular per se, but it is up there as things she’d like to do again sometime.

 

While all these thoughts were going on in the far recess of her mind, the forefront of her mind was exploding in pleasure as she felt what it was like to be filled up. Her pussy was leaking with Petra’s cum. Her cock was still twitching from emptying in Jean’s mouth and the sweet taste of yuri milk on her lips. She was in heaven, and she had the feeling that tonight was not over just yet.

 

And she was right. Still panting and reeling from her first male orgasm, Jean spoke up. “Remember what she said, Petra? She wanted us to be rough. Get round here and use your cock to make her choke. I’ll take over from your end. Don’t worry, Gwen, I won’t go as soft as Petra; she’s already loosened you up for me, after all.”

 

Gwen’s pussy clamped at her words as she felt like she was descending into something deep and dark. Would she be able to live life if her lovers didn’t fill her with Yuri milk at least once a week? Once a day?

 

—

 

*Ring* *Ring* *Ring* — *Ring* *Ring* *Ring*

 

*Groan* X3

 

All three's collective groans sounded as Petra’s phone went off in the background. “I got it,” she called out sleepily and after a few seconds of fumbling around, she found her phone and accepted the face call without thinking. “Hey, Aunt May,” she said, still half asleep, but that quickly changed when she saw her reflection in her camera. “Hiiii!” a weird high-pitched scream escaped her throat, fully waking up both Jean and Gwen, who looked over at Petra, who was covered from head to toe in questionable liquids.

 

Quickly throwing the phone away to the other side of the room, Aunt May couldn’t help but feel dizzy. She calls her nephew/ secretly actually her niece and the phone gets answered by a half-asleep naked cutie who is covered in questionable dried liquids. Only then be called ‘Aunt May’ in such a familiar tone that only one person can make such words. Peter/Petra Parker. Head spinning at what just happened, she was then assaulted with a scream and a spinning camera as she was chucked to the other side of the room.

 

On the other hand, Gwen was still half asleep, alert due to the scream, but still half asleep. “What’s wrong, Petra?” She asked, wondering what all the noise was about at such an early time in the morning… at mid-day. It looks like they slept in again. On the other side of the room but still on call, Aunt May couldn’t help but put the pieces together. Petra was a name that only she and Peter/Petra called herself. But that familiar voice that she had come to know over Petra’s childhood was a voice that she was very used to.

 

Gwen was calling Petra by her real name? But Gwen didn’t even know, did she? And was she calling that cute girl by the name of Petra? But didn’t that mean that Peter had officially become Petra overnight? What was happening? And why was her cute niece covered in such substances? She wanted to question them both, to find out what was happening, but she knew her current position could be used as an advantage. For all Gwen knew, Petra may have just hung up the phone. She decided to stay silent and listen to the gossip like a typical aunt would, so she held her tongue.

 

“Tha… But.. I… She… May… I…” Hearing the familiar spluttering from when Petra was heavily embarrassed by something, May’s mind instantly knew that that cute girl was her niece. A feeling of relief washed over May from the other side of the phone. Only she knew the feelings Petra was bringing home from school every day, and even then, she could only imagine the surface of it. The fact that Petra had officially become a girl was to be celebrated. But why was she still covered from head to toe with such liquids? Why was Gwen also with her? Did she also have such liquids on her? And if so, wasn’t Gwen meant to be going out with that beautiful redhead from the picture? 

 

Before she could even think of more questions, another voice pitched in. This time, an unfamiliar one. “Calm down, Petra, take a deep breath and then say what you want.” The voice was also clearly sleepy, similar to Gwen’s before.

 

A third voice? Aunt May was still reeling. Was it all a big misunderstanding? But still, her instincts as a woman were sharper than most out there. She felt, no, she knew that something was going on. Her womanly intuition was telling her so, and that same intuition matched that voice to the picture George had shown her of his daughter and her girlfriend. Seriously scary womanly intuition, indeed.

 

A few deep breaths later, Petra managed to calm herself somewhat, only to blush. “I just answered Aunt May’s face time… She saw me… like this…” She said, looking down at herself, blushing heavily as she saw her breasts still covered in sticky white substances, along with some falling out the corner of her mouth and some near her eyes and even more in her hair. Gwen tried to keep it in; she did. But a small chuckle escaped her mouth, followed by full-blown laughter. “Stop laughing, Gwen! It’s not funny! How am I going to explain this?” 

 

Gwen calmed down after a few seconds. She had fully woken up by now due to the situation. “We tell her the truth. I doubt you wanted to lie to her about it in the first place, and I don’t want to lie to Aunt May either. She’s too much of an angel to ever lie to her.” On the other side of the room, Aunt May couldn’t help but pump her chest out in pride. That’s right, she’s an angel, alright. 

 

“Okay, then, how do I explain the fact that I’m covered from head to toe in your and Jean’s cum?” Petra asked, a blush on her cheeks. Aunt May couldn’t help but have her eyes wide at the declaration.

 

“Ah, it’s fine. Jean and I aren’t any better. Haha.” Gwen said with a laugh. “But we really should have a shower and clean up; the room reeks of sex.”

 

“I’ll tidy the room; it’s good practice for my telekinesis training,” Jean said, stretching from under the duvet and starting to clean the room and air it out simultaneously. “That’s already loads better.” That got Aunt May’s attention, telekinesis?

 

Aunt May, still on the other side of the phone, could see some movement. It seemed like the phone was being picked up, and she happened to catch a glimpse of the room and its inhabitants. All three of them looked like they had just crawled out of some depraved sex dungeon, and as the sheets hovered up and started to shake, getting the duvet cover off the duvet and showing both Jean and Gwen, who were still on the bed and connected at the hip. And she meant connected in the literal sense. Jean’s cock was still buried deep inside Gwen’s pussy as it hadn’t been dismissed yet, and they had passed out in the midst of fucking.

 

When Gwen said earlier that Jean and her weren’t any better, she found it hard to believe, but the proof was in front of her. Gwen was quite literally covered, and as she pulled herself off the cock she was still impaled on, it became evident that she wasn't just covered on the outside but the inside too. What surprised May even more, though, was the fact that the cock disappeared as if by magic, not a second later.

 

Another thing that May noticed in her silent watching was that Gwen, Jean and even Petra were all incredibly fit with muscles in all the right places, as if they were athletes who trained hard every day. She didn’t know much about Jean, so it could be possible that she was a very athletic person, but she knew Petra and Gwen very well. While they couldn’t be called unfit, they shouldn’t have muscles like that. Then again, Petra also shouldn’t have a woman's body, so maybe it was just a side effect.

 

Then, there was a memory in the back of her mind. Jean’s face was getting increasingly familiar by the second, but she didn’t know why or how. She couldn’t understand why Jean’s face was so familiar, so she just brushed it aside and assumed it was a misunderstanding or that she resembled someone else. Still, a nagging feeling was there, and she knew she’d look it up later to confirm her doubts.

 

Feeling that her time as an observer had ended, Aunt May made her presence known. “AHEM.” Everyone froze, even Jean, who used telekinesis to wash the room. They all looked to the source of the sound only to find a phone screen with a very amused May’s face on it. Three simultaneous shrieks echoed as they quickly covered themselves up all at the same time. “No point covering yourselves up; I heard and saw too much already.”

 

The three faces blushed, and Gwen and Jean looked at Petra, who looked even more embarrassed as she realised that she had forgotten to hang up the phone and just threw it away. Meanwhile, Gwen also doesn’t sense anything because she knows that Aunt May will never turn her back on her family; therefore, there is no danger even if Aunt May knows. “Petra, congratulations on your change!” she started smiling. Even Petra couldn’t help but be happy. “Gwen, and I believe it was Jean. I hope you take care of my niece; she can be quite a handful sometimes. Don’t worry about her identity; I’ve already covered everything; she can go to school tomorrow like normal. If I notice that her grades drop in school, I am pulling the plug on whatever is going on between you three.” Petra couldn’t help but smile as she got her Aunt May’s blessing. “However! I don’t want any unexpected pregnancies. Can you be sure that there won’t be any?” For some reason, call it her womanly intuition again; she looked towards Gwen when she asked that.

 

“No worries, Aunt May. Nobody will be pregnant unless everyone agrees and is ready!” Gwen said with a proud smile.

 

“Good,” May said with a smile, noticing there was a chance for her niece to start a family with Gwen and Jean if she desired. “You should all get cleaned up. You look like you walked out of a sex dungeon. Especially you, Gwen.”

 

Gwen couldn’t help but blush at that and try to throw the blame elsewhere. “Hehe, who do you think made it so?”

 

Jean and Petra were giving her looks, and Jean quickly crushed her deflection. “You were the one who wanted to be spit-roasted.” 

 

“She’s right, Gwen; we were just doing what you wanted us to do,” Petra said with a shrug of her shoulders.

 

Aunt May heard that and couldn’t help but nod in approval at Gwen’s tastes, thinking of some of her old collage days from before she met Ben before shaking away such thoughts. “Well, as long as you’re having fun and it’s safe.” She said before cutting the call.

 

“You all saw that approval in her eyes, right?” Gwen couldn’t help but ask, and she noticed that Petra’s face was scrunched up. She also noticed and wondered what her aunt had gotten up to in her younger days. “Anyway, with that sorted, let’s get cleaned up!”

 

—

 

All cleaned up and ready for the…afternoon ahead of them, Gwen and co sat on the couch at Jean’s apartment, waiting for their takeaway to arrive. They didn’t feel like cooking due to their sore muscles, and they also didn’t feel like going out on an empty stomach. 

 

Solution=takeaway!

 

While waiting, Yuri also made herself known with a message about the total points she had made the previous night, and she couldn’t help but be surprised.

 

[Congratulations, due to your previous night's activity, you have earned another 42895 Yuri Points.]

 

She wondered why that was the case; it was due to the use of her Yuri skills. They counted as an amplifier when used to gain more YP. She also completed a whole load of first-time quests with Petra, which quickly built up over the night. She also did some more first-time quests with Jean, adding even more points to the long list. That was when she realised that she also hadn’t summoned a Yuri book for Petra yet and decided to do so, gaining another 200 points. Making her total points now add up to 47895 YP. She’d spent 15000YP on the 12-hour Yin-Yang Reverse Pill, leaving her only 5000YP before the fun.

 

“Girls, is there anything you want from my Yuri System store? I’ve got over 45k points and am still a little lost on what to spend them all on.” Gwen asked, wondering if there was anything specific that they wanted.

 

“I can’t think of anything off the top of my head; why don’t you use it to buy more Gacha’s? That way, you may stumble upon something that could be very helpful. You got some good stuff from it before, right?” Jean said, having a little more understanding about the system than Petra.

 

“I suppose that’s true,” Gwen said after consideration. “Yuri, is it possible to load the Gacha onto my computer so we can all see it?” 

 

[Sure thing!]

 

Getting the quick reply, she summoned her laptop and placed it on her lap, Jean and Petra snuggling close from either side to see what this was all about. “Oh, I’ve already got four spins free. They must have been from my patrol yesterday.” Quickly spinning the wheel, it stopped on the white, gaining a pair of sunglasses that did look quite nice if she was being honest.

 

“Next roll.” She said, letting it spin again. This time, they caught sight of the Gold drop but quickly went past it as it spun. “Oh, a blue one!” Gwen said in excitement. Her last Blue got her basic level Karate, which helped her life as Ghost Spider, so she was eager to see what the next Blue would be. “Hmm, oh, it’s knowledge based on computers, hacking and coding,” she said as she closed her eyes, assimilating the information into her mind for a few seconds. She now understood things that she had never had any interest in learning. It wasn’t at the red level of drops, so it wasn’t like she was going to one-up Talia Stark or something, but it was still valuable knowledge.

 

“Wait, you just gained some knowledge just like that?” Petra couldn’t help but be confused, dumbfounded, and jealous of such a thing.

 

“Yeah, pretty much; it is pretty overpowered, I must admit.” Gwen agreed with Petra’s feelings.

 

“Next one.”

 

A few minutes later, another load of pens, toilet rolls, noodles, etc., and another police scanner was placed into Petra’s suit for when she was out and about. It was connected to Gwen’s little setup, so she could see through her eyes if she wanted to. They also have a few nick-nacks and even more blue-level knowledge of karate. She asked Yuri if Petra could consume the knowledge instead of her because she knew she would debut as Spider-Woman soon and wanted her to be safer.

 

Gwen spent 10000YP on drops but didn’t get much apart from the last one when it landed on a Red Drop. “Oh! A red drop! I wonder what it could be!” Gwen said, excited at the possibility of a new superpower or something.

 

[Red Drop - Miles Morales Powers (Strengthens current Spider powers) - Spider Camouflage, Bio Electricity Powers.]

 

“Oh, I got another power based on my Spider Powers. Spider Camouflage and Bio Electricity Powers.” Gwen said, feeling that familiar rush of strength through her limbs, followed by the understanding of her two new powers. An arc of electricity ran across her fingers before she almost completely disappeared for a moment and reappeared. “So cool!”

 

“Well, it’s always good for you to get stronger, Gwen,” Jean said, kissing her on the cheek.

 

Gwen smiled at the kiss and couldn’t help but snuggle everyone closer and enjoy both girls’ presence.

 

“Gwen, have you done the homework for Physics yet?” Petra asked as she was thinking about her schedule. Gwen’s face was cramped; she had forgotten entirely about any homework and had lost herself in the fun of her new system and her girls. Seeing Gwen’s expression, Petra sighed. “Maybe Aunt May was right about how relationships can be distracting.”

 

—

 

Meanwhile, said Aunt May, the ‘Nurse’ was walking through the halls of a top-secret government facility called S.H.I.E.L.D, getting nods of respect from those she passed. Her usual happy and welcoming demeanour from home was gone and was replaced with a severe and stoic attitude as she walked right inside the office of the current director, who was sitting behind his desk; a severe frown, like always, was on his face as he looked up. “Agent Valkyrie, I didn’t expect to see you back after what happened to Agent Parker. What can I do for you?”

 

“I have a favour to ask and an inquiry to make. My nephew recently had a gender switch and became my niece; I must ensure everything goes smoothly for her. And for my inquiry, what do you know about a young telekinesis user, Jean Grey?” Hearing the familiar name, Fury’s single eye narrowed to a slit.