Gwen Stacy’s Yuri System

"That… Was… Delicious…” Gwen said, her stomach bulging due to the amount she ate, but it wasn’t her fault! Who told Jean to make it so delicious? Gwen never thought that Jean would cook a whole turkey for the three! Jean seriously pulled out all the stops: the crispy roast potatoes, the stuffing, the veg, the gravy and the meat. Oh, the meat. Just thinking about it made Gwen’s mouth wet with saliva.

 

“Hehe, I’m glad you enjoyed it,” Jean said proudly. She had spent the last few hours in the kitchen and had received the praise she wanted.

 

Petra also looked happy and content. Her more petite body, unable to eat quite as much as she was used to, still managed to fill herself up and then some. “I’m gonna need some cooking lessons from Aunt May to try and catch up,” she said, knowing that the most she could cook was beans on toast.

 

“Alright, Jean. You should sit down for a bit. You’ve worked hard. Let me get the dishes,” Gwen said, moving stiffly due to her stuffed stomach. Before she could grab the first plate, it started floating, along with the rest of the dishes and things for washing. “Right, telekinesis.” Gwen nodded as it looked like the entire kitchen was cleaning itself and the dishwasher was stacking.

 

“Haha, today I went through some of that book, and it helped me get my control down; now I’m using every chance I get to practice. Working like this, which involves chinaware, is the perfect practice to ensure I’m not using too much power.”

 

“Huh, was that why I saw a bunch of broken plates in the bin?” Petra couldn’t help but ask, causing Jean’s control to slip momentarily, and a crash followed. “Sorry.” She said, looking guilty.

 

“Ha, it’s fine; that just goes to show that I’ve still got a lot of practice ahead of me,” Jean said with a wry smile. She couldn’t be mad at Petra; she was just too cute. “Anyways, let’s let our dinner go down. Want to watch a movie?” Jean said, also moving somewhat stiffly.

 

“That sounds nice,” Petra said, still a little nervous about what would come after the movie. 

 

The three of them piled up on the sofa, and Jean selected a movie from her extensive collection of CDs and pressed play. The following two hours involved watching high-speed car chases, gun fights, and fight scenes. “That was a lot of action packed into just a two-hour movie,” Gwen said, still trying to find the right words. She didn’t dislike it, but she expected a movie to set the mood for later that night. It didn’t have to be a romance or anything, but maybe a comedy or something to lighten the mood.

 

“Eh, I enjoyed it!” Petra said, thinking that the movie was quite incredible. Gwen also realised this and couldn’t help but realise that the movie was the perfect thing to make Petra stop worrying or overthinking about the threesome that they were definitely about to have. Sending Jean a thankful nod, Gwen smiled and agreed with Petra.

 

“Hmm, that’s true, the fights were pretty cool.” Gwen said, “So, shower?” She said with a lick of her lips, causing Petra to blush up to her ears and Jean to roll her eyes. They just watched that movie to distract Petra, hopefully, but now she’s just gone and has blown it away. Seeing nobody denied her words, Gwen chuckled and grabbed both their hands before leading them to the bathroom.

 

“Hmm, maybe we should all huggle up in a bath. That would be nice.” Jean said this time, and Gwen looked at her with admiration for such an idea.

 

“Let’s all rinse off and get in then!” Gwen said, quickly taking off her clothes, followed by Jean as Petra just watched on, blushing from the top of her ears to the base of her neck. Realising that Petra was frozen, Gwen walked in front of her, her chest bare, and snuck her hand around Petra’s neck, leaning in for a kiss on Petra’s lips. A few light pecks were all it took for Petra to reboot, and she couldn’t stop the smile as she kissed Gwen back a few times. Simple, light kisses. “You ready for this Pet?” 

 

She nodded, a blush still prevalent on her face. “Y…yes!” she said with determination, and Gwen and Jean thought she was too cute.

 

“Good,” Gwen replied with a smile, turning around and slowly moving her leggings down along with her panties as she bent down in front of Petra, giving the girl a clear view of her pussy and her butt-plug-filled ass; Jean followed, not a second later as the two of them sensually stripped in front of the blushing girl. “Well, are you going to take those off, or do you want us to take them off for you?” Gwen asked; honestly, at this moment, she just wanted to pamper Petra for all she was worth, which was a lot.

 

Blushing, Petra also started to remove her clothes, quickly showing her perky breasts that looked super cute. “Is it me, or is Petra just super cute? I could just gobble her all up,” Gwen said with a grin, the shower turning on above her head, thanks to Jean’s telekinesis.

 

“I hope you don’t plan to hog her all for yourself,” Jean said with a lick of her lips. “And you’re right, she looks super cute.”

 

Due to the compliments, Gwen could almost see steam coming from Petra’s ears. Petra joined them in the shower not a second later, as she was still hesitant about everything. “Petra, do you want me to take the lead, or do you want to take the lead?” Gwen couldn’t help but ask. Petra didn’t answer, just taking a breath of air to regain her courage and stepped forward, her arms wrapping around Gwen and Jean’s hips.

 

“Ohoh, want to take up both at the same time?” Jean couldn’t help but tease as she pushed herself towards Petra, her breasts wrapping around her arm from one side as Gwen joined her attack from the other side.

 

Petra blushed but didn’t back down at all. Her hands roamed the waists of both girls and finally descended onto their asses, giving them both a tiny squeeze before she started massaging them both. Years of massaging her Aunt May’s shoulders after her long days at work and the experience it brought came into play as both Jean and Gwen couldn’t help but be surprised at the technique Petra seemed to have mastered.

 

“Oh my.” Gwen couldn’t help but say as a blush crept onto her face. “Mmn, that feels great.” Getting a small moan out of Gwen seemed to have boosted Petra’s confidence even more as she descended into her full range of massaging tricks, turning both of them into putty in her hands.

 

As the water fell on the three of them, Petra continued her work with renewed confidence in her skill and body. The compliments of Gwen and Jean still ringing in her head gave her the confidence to take that step forward and have the fun she wanted. After everyone rinsed off, they stepped into the bath that had been running. There wasn’t enough space for the three of them, so Jean sat in first, followed by Gwen, who sat between her legs, and Petra, who sat between Gwen’s.

 

They quickly got comfortable in the bath, resting on one another and sharing kisses. Eventually, Petra turned around and pressed her breasts into Gwen’s, and they continued to make out, sharing long kisses and little nibbles on their lips until Jean snuck in and stole Petra’s favourite spot. Not wanting to be left out, her lips started to descend on Gwen’s collar before descending a little lower and finding the pink little nubs of her breasts; she couldn’t hold herself back as her lips latched onto one, her tongue swirling around the nipple in her mouth, getting Gwen to moan as she was attacked from both sides.

 

Gwen was in heaven, Jean’s kisses on her lips intoxicating, her hands roaming, and she already knew her sensitive spots from their earlier play, sending her into heaven. Petra’s tongue lapped at the sensitive nipples as her other hand massaged her other breast with her god-like technique, giving her playful pinches, loving gropes and firm fondling. She didn’t know where Petra learned it or if it was a god-given gift, but it was terrific.

 

Before Gwen knew what was happening, Petra ascended once again, joining in on a three-way kiss before raising herself a little, giving Gwen access to her breasts. Gwen couldn’t help but be entranced by their beauty for a moment before diving in, all while Petra and Jean entered a fierce exchange of saliva with Gwen stuck in the middle of them. One of her earlier fantasies came to mind, of both her and Jean sandwiching another girl, but this time, she was in the middle, and she couldn’t help but love the feeling of it.

 

Jean picked all three of them up with her telekinesis and quickly dried everyone off with a blast of warm air before she took them to the bedroom. Gwen and Petra were surprised by her actions but couldn’t help but look forward to what would happen. By the time Jean had placed them on the bed, Gwen was already touching herself in excitement, her finger playing with the little nub of her pussy.

 

Jean placed Gwen on her back and spread her legs with telekinesis before placing Petra there between Gwen’s thighs. Petra couldn’t help but be entranced at the sight of Gwen playing with herself, her hands already moving on their own as she wrapped both her arms around Gwen’s legs and placed her face at her lower garden, giving it a tentative kiss, then a lick, and then another before fully lowering herself and enjoying the delectable garden in front of her, her tongue with a talent unknown to the girl herself as she found the entrance as her years of experience in massaging came into play, watching for reactions, both good and bad as her tongue darted around Gwen’s pussy, quickly learning and finding the best patterns, the best places and sensitive spots.

 

It must be remembered that Petra is a genius. Her mind working at speeds that even Jean found hard to keep up with her thoughts, and now all that processing power was going towards a singular goal. Making Gwen orgasm.

 

Jean watched on in delight as her lover's face changed, going bright red, her breathing deepened, her eyes fluttering and almost going cross-eyed and hearing the moans leaving her lips. She lay there next to Gwen as she feasted on her lover's nipples, playing and giving attention to the rest of Gwen’s body as Petra focused on her goal with an iron-like determination.

 

The combined surprise attack from both her lovers left Gwen defenceless. She tried to move her limbs to counterattack but couldn’t muster her strength. Before she knew it, she was panting, trying to find her breath, quivering and shaking, her back arched and toes curled as her pussy tried to stop the invading tongue from leaving as she clamped down on the invader but to no avail. A scream of orgasmic bliss exited her throat, along with an eruption of liquid from her lower lips as Petra was there, slurping up her delectable juices in excitement.

 

“Haa, haaa, haa. That… was unfair.” Gwen said, her body relaxing from the two-pronged assault.

 

“Mmn, I’m not so sure about that. You have a stronger body than us, and it’s only fair for us to gang up on you,” Jean said. “Plus, watching you helpless like that while quivering to Petra’s tongue is doing all kinds of things for me.” She said breathlessly with a prominent blush on her cheeks.

 

That woke up both Petra and Gwen. They looked at her and found eyes that seemed lost in lust and passion. The sight was intoxicating itself: her nude body, her long red hair and her jade green eyes. It was the definition of temptation, and Gwen and Petra were only mortals; they couldn’t resist that temptation as they both dived into the red-headed girl with a single desire. They wanted to see her squirm under them.

 

Petra quickly found her lips latched onto Jean’s, her hands working on her upper body, breasts, neck, and shoulders. Her experience came clutch in this joint endeavour with Gwen.

 

Meanwhile, Gwen got arguably the better role. Laying across the bed, her head between Jean’s thighs, she looked up to find Petra’s glistening pussy and star-like ass hole that was twitching in excitement. A little part of her wanted to go on a surprise attack on Petra but decided against it; for now, that could come later. Descending her tongue into Jean, her Yuri-Senses helped her along the way as her fingers found their role, plunging in and out of her dripping garden as her tongue worked on Jean’s clit.

 

Her other hand went elsewhere; despite the desire to focus on Jean, her hand seemed to have a mind of its own as it ascended and groped Petra’s delectable-looking backside, much to her pleasure if the drops of juices coming out of her pussy were any indication. Her resistance crumbled seeing the pussy quiver, and her hand quickly found their way, stroking Petra’s entrance, all the while fingering Jean.

 

It didn’t take long for Gwen to start fingering the two of them together, moving her lips between the two gardens as she kept edging them both closer to their release. Both of their pussies quivering, and Gwen couldn’t help but smile as she fingered the two of them, hearing the two of them moan as they collapsed onto one another in a heap of breaths and moaning as Gwen worked them both at the same time, her fingers went from one to two, to three as she used her speed to and strength to keep them there. Her tongue was working hard as well, occasionally flicking their clits, sometimes giving their asses a little rim before slurping up both their juices.

 

Like a beast, her instincts guided her in the heat of passion, pleasing and pleasuring both her lovers at the same time. It didn’t take long before a shared shudder passed through Petra and Jean, legs spasming, toes curled, and forms quivering. An explosion of juices found its way, soaking Gwen from forehead to chest as she gobbled up the yuri juices of her lovers as they panted; Petra collapsed on top of Jean, breasts pressing against one another.

 

Petra fell off to the side as Gwen climbed up between the two panting maidens and pulled them both close to her. The two of them contently hugging into her sides as she basked in the feeling of pleasure. In the lull of the passion, Gwen decided to take a little break, only for a little while, as she knew that she had unlocked Petra’s ‘Welcome To The Harem Gift Box’. Already having an idea of what was inside, Gwen felt it would be better to consume it now so she wouldn’t wake up the following day in her old, uncomfortable skin.

 

“Petra, would you like to open your gift box now?” Gwen asked.

 

Thinking about it for a single second, Petra nodded her head. Jean was also interested in the box, and she watched as Gwen summoned it and placed it on Petra’s stomach. Petra quickly went to open the box, and Gwen was a little surprised when a similar event happened: a spider jumped out and landed on Petra’s hand before biting it, making Petra scream. “Don’t panic. Sorry, I should have warned you about the possibility. The same happened to me. You’ll be fine and will probably acquire similar abilities as myself.”

 

Petra, being the smartie that she was, quickly calmed down as she felt the changes in her body. Her height had gone from 5’10” down to 5’7” and now back up to 5’8”. A fuzzy sensation settled in her body as she strengthened herself before a cooling sensation spread around her. She quickly noticed the changes, and so did Gwen and Jean as she gained more defined muscles in her arms, her stomach now supporting a six-pack. “Woah. That’s trippy.” she couldn’t help but say. She was clenching and unclenching her fist. Taking a few moments to get used to the feeling, she returned to opening the box.

 

Just like usual, her eyes darted to an object; this time, it wasn’t a sex toy but something else. Picking it up, she looked at it for a second and couldn’t help but have an innate understanding of its features. It was a nipple piercing that she could control the vibrations of, sending waves of pleasure through her lover. “I think this one's for you, Gwen.” She couldn’t help but say as she placed the piercing on Gwen’s left nipple and watched as it magically attached itself to her. “Hehe.” Petra giggled before turning it on for a second and watched Gwen’s breaths deepen, and her face reddened in pleasure. Just like Jean, Petra knew she could activate this whenever and wherever she wanted. 

 

She returned to the gift box with a smile, leaving a slightly needy Gwen behind, who had just been teased so thoroughly. There were two things left: a little box, which, when she opened it, contained a familiar-looking pill, only this one was more intense. Sending a questioning glance to Gwen, who nodded encouragingly, she tossed the pill into her mouth and immediately felt the difference.

 

If before, she felt like an almost complete jigsaw puzzle, now the final pieces had finally been slotted together. She truly felt complete and knew that this form was her to stay for now and forever. A beautiful smile found its way onto Petra’s lips before she looked towards the last object. It was a red and blue spider-woman costume. “Nice. We should go on a web-swinging date one of these days.” Gwen couldn’t help but say.

 

Petra smiled; the last thing she expected when sleeping with Gwen was to gain superpowers, let alone the possibility of becoming a superhero. “I’ll take you up on that offer.” She replied with a smile of her own.

 

“I’ll hold onto that for now and give it to you later,” Gwen said, putting the spider costume into her inventory. “Now, shall we get back to the fun?” Gwen asked with a grin.

 

“Before that, isn’t there something else you need to check out?” Jean asked, much to both Gwen and Petra’s confusion.

 

“What do you mean?” Gwen asked, not feeling like she’d forgotten anything.

 

“Well, you also got a gift box and a mind shield when we slept together. Isn’t it possible you’d get something that Petra had before you helped her?” Jean asked with a lewd smile.

 

Gwen didn’t know what Jean was on about for a few seconds before she looked over to the naked Petra, and then it hit her. “You think I’d get one?” she asked, the possibility that had never occurred, but she was excited nonetheless.

 

“Umm, what are you on about exactly?” Petra asked, still confused about what was happening.

 

“Well, let’s see if it works first. There's no use in getting excited over the idea while it’s still up in the air.” Jean said, and Gwen nodded; opening her inventory, she took out her own ‘Gwen Stacy New Member Mystery Box’, pulled the birthday-like ribbon off it and opened it up. Inside was a familiar-looking book, just like the one that her Yuri-Senses came from. With bated breath, she reached out for the book, and it instantly turned to lights before combining with Gwen.

 

She sat there, absorbing the knowledge as a smile appeared on her face.

 

[New Yuri Power Unlocked: Yuri Cock.

 

Summon a customisable cock on either the user or the user's partners. The user and partners have complete control over the fertility of the seed. Possible to impregnate users' partners and the user herself.]

 

Gwen sat there, blushing at the possibilities as her breathing deepened and her mind wandered over some spectacular scenes in her head. It took a long moment to snap out of it before she looked over to Petra and Jean with a pensive expression; before she could ask them, Jean had a giddy feeling rising in her at the expression and knew that something good was coming. “Tell us what you want us to do, Gwen; I’m sure Petra and I would be more than willing to try it.”

 

Petra raised an eyebrow but nodded nonetheless. “That’s true; I’d like to experiment more and find out what I enjoy now that I’ve got this body.”

 

Gwen spluttered; she couldn’t find her words as they both looked at her with fond smiles. How could she tell them that she wanted them to spitroast her when they looked at her like that? Red in the face, she tried to find her words, but nothing coherent came out. “Come on, Gwenny, there's no need to be embarrassed; you just need to tell us,” Jean said as she knew that she was going to like whatever was about to come out of Gwen’s mouth.

 

“Sp…spitroast,” Gwen said, her voice barely above a whisper as her index fingers touched each other and she looked down, embarrassment clear on her face as she blushed up a storm.

 

Jean obviously heard Gwen, and so did Petra, but just as Petra was about to ask what that even meant, Jean silenced her with a finger on her lip. “You’re going to have to speak up if you want us to hear you.”

 

“I… Want you to spitroast me.” Gwen said, gathering her courage before losing it all halfway through.

 

“Oh, I’m not sure I caught that,” Jean said, a sadistic smile on her face.

 

After a deep breath, Gwen gathered herself before closing her eyes and shouting, “I want you to spitroast me!” She realised what she had done before looking at Jean and Petra, then realised Jean's teasing expression and blushed up a storm.

 

“Hmm.” Jean started. “I’m not sure I’m familiar with the term. How about you, Petra?” Jean was lying, and it was blatantly clear to both Petra and Gwen. But even still, Petra was unfamiliar with the term, so she only shook her head.

 

“Well, then, Gwen, why don’t you explain it to Petra and me here?” she said with a smile. She really liked it when Gwen was all cute and embarrassed like this; it was one of her bigger turn-ons.

 

“We…Well, I just got a new skill.” She said, and her hand went over her crotch, and a light appeared when the light disappeared. A moment later, an eight-inch cock was standing tall, just a few centimetres above her vagina. Both Jean and Petra looked on in fascination at the new skill. “And… I was wondering if… I could… you know… give you both one of these… and one of you… down here… and the other… in here.” Gwen said as she laid on her back, spreading her legs to both Jean and Petra and pointing at her vagina and then the other one pointing at her mouth.

 

Petra quickly realised what Gwen was saying and couldn’t help but have the image burn into her mind as she dumbly nodded. But before she made any decision, she needed to make sure of some things about this new skill. “What’s the chance of pregnancy, and are these cocks permanent?“

 

“Pregnancy is basically up to me. I don’t want a baby, well, at least not right now, so I’ll turn the fertility of the seed to zero. And I can put several charges on the cocks. For example, I charged this one here. “She said, grabbing hold of the meaty member between her legs, shivering slightly at the foreign sensation with a gasp. “With two charges. That means I can come twice before it disappears.”

 

“Well, I don’t see any problems with that then. What do you say, Petra, do you want to spitroast Gwen with me?” Jean asked with an excited smile.