Thinking With Portals

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Cass is a sexually frustrated hermaphrodite. Her asexual girlfriend Izzy decides to help her out with the use of portals.


Cass plopped down on her bed with a sigh, startling her girlfriend Izzy who had been absorbed in a book.

"Are you okay?" Izzy asked, marking her page and putting the book aside.

"I'm fine," Cass replied. "I'm just feeling kind of... pent up. Are you up for some cuddling?"

Cass and Izzy had a bit of an odd relationship. They loved each other deeply, but they were nearly incompatible when it came to sex. Cass was a pansexual hyena-kin. She also happened to belong to a small percentage of hyena-kin who were born with both male and female genitalia, which made her twice as horny as the average person. Izzy, on the other hand, was an asexual dog-kin. She loved kissing, cuddling, and being physically close in general, but she hated sex. Having her pussy stimulated made her uncomfortable, and she had made it clear when they first started dating that being penetrated was not something that she was willing to do.

Since Cass was often horny, and Izzy wanted Cass to be happy, they had put their heads together and brainstormed various ways for Cass to relieve herself without making Izzy uncomfortable. The first thing they tried was a strap-on, with Izzy using it on Cass, but that didn't work very well. Izzy tried her best, but frankly, she was really bad at it. Cass also preferred to have her dick stimulated rather than her pussy, so they had moved on to their next idea.

Their second idea was for Izzy to hold a fleshlight next to her crotch while Cass fucked it, but that also didn't work. It didn't feel real enough for Cass, and they both agreed that they preferred the skinship of a handjob over the fleshlight.

That led to their third method, which they had been using for almost the entire two years they had been together. It was a pretty simple arrangement; they would cuddle and make out while Izzy gave Cass a handjob. It wasn't ideal for Cass, but it was good enough to keep her lust satisfied. At least, that's what she told Izzy. Cass knew that Izzy was trying her best to help her, so she didn't want to make her feel bad by being unappreciative, but two whole years of nothing but handjobs had left Cass sexually frustrated.

Izzy, although not very good at understanding sexual urges, was very good at understanding her girlfriend, so she could tell what was going on. It also became quite clear that Cass had taken matters into her own hand (pun intended) when she started taking longer showers, after which Izzy would sometimes find globs of cum on the shower walls.

It wasn't something they would ever break up over, their problems in bed were just a small blemish on an otherwise perfect relationship, but it was still something that troubled them. That was why Izzy had prepared a surprise for Cass.

"Actually, I have something I wanted to try out tonight."

"Oh?" Cass said curiously, her ears perking up. "Is it some kind of toy?"

"You could say that," Izzy answered with a mischievous grin on her face.

Cass sat up in bed and watched as Izzy retrieved a small black box from inside her dresser. She handed it to Cass, who went wide eyed when she recognized the spiral logo on it.

"Izzy, is this what I think it is?"

"Yep!" Izzy said proudly. "Portal panties! And not just any portal panties, these were custom designed for us!"

"How did you manage to get custom portal panties made for us?" Cass asked in shock. "Even basic sets are crazy expensive."

"Do you remember my friend Sammy?"

Cass nodded. "She's that cowgirl you work with, isn't she? What about her?"

"Well, we were talking the other day, and she told me that the company that makes these panties was looking for people to test some new products. She helped me get in contact with an employee there, and I managed to get us accepted as testers. All we have to do is give them feedback on these panties and they're ours to keep!"

Cass was amazed that Izzy somehow got them custom portal panties for free, but a problem came to her mind.

"Izzy, I really appreciate you going through all the trouble of getting these for us, but... um..."

"What is it?" Izzy asked, her proud grin replaced with a concerned expression.

"What are we actually supposed to do with them? Aren't these panties meant for having sex over long distances?"

Izzy started grinning again. "I told you, these are custom! Try them on and I'll show you how they work!"

Cass was still confused, but she trusted Izzy so she complied. She opened the box, inside of which were two pairs of neatly folded black panties. Izzy pointed out which pair was Cass's, and they both stripped down and put them on.

Izzy's panties looked like normal panties, but with a ring on the outside that circled the outline of her pussy. Cass's panties also had a ring that circled her pussy, but this ring was attached to the inside rather than the outside. They were also low-cut, leaving Cass's cock completely uncovered and hanging out.

Izzy turned both pairs on, and Cass watched as the cloth under the ring on Izzy's panties suddenly disappeared, revealing Izzy's cute little pussy. It took Cass a moment to realize that she was actually looking at her own pussy, since the fur color around their pussy's was a very similar shade of brown. However, when she did realize that her pussy was now between her girlfriend's legs, she immediately figured out how these panties were supposed to be used.

Izzy's tail wagged in excitement as she watched Cass's face go from confused, to aroused, and then to a mix of surprised and horny.

"So," Izzy said. "Do you like them?"

Cass answered by tackling Izzy onto the bed with a hug. "I do! Can we try them out right now?"

"Of course!" Came Izzy's voice from underneath Cass, her voice slightly muffled from her face being pressed up against Cass's fur.

Cass didn't waste any time. Her cock was already getting hard, and she helped it along by rubbing it against her own pussy lips. It was a very odd sensation, but very pleasurable. It didn't take long before her dick was rock hard and smeared with juices from her pussy. Lining herself up, Cass paused for a moment, thinking about the absurd situation she was in.

Here she was, one thrust away from burying her cock inside her asexual girlfriend's pussy, except it was actually her own pussy that would be getting fucked. Never in her life would she have expected something like this to happen.

Izzy noticed Cass pause, and decided to give her a little encouragement. "What are you waiting for? Fuck me!"

Cass didn't need to be told twice. She had never heard Izzy say such a thing before, so it really turned her on.

Cass plunged her cock all the way inside in one go, moaning loudly as she simultaneously penetrated a tight pussy and had her pussy stretched by a big cock. She moved slowly at first, getting used to the sensations, but quickly began to thrust faster and faster. Cass had tried to fuck herself before-- most hermaphrodites had-- but it wasn't really feasible without something like these portals. Her dick couldn't bend far enough to go in when it was erect, and it didn't feel good when it was flaccid. The only thing she achieved whenever she tried was getting her dick lubed up, so at least that was something.

This time was different though. With these portals, Cass could properly fuck herself. Every time she hit a sensitive spot in her pussy, it would clamp down on her dick. And every time her pussy clamped down on her dick, that only made her harder. It was an incredible feedback loop of pleasure that Cass lost herself in. She began aiming for sensitive places, bringing herself to new heights of ecstasy.

"Izzy! This feels so good! I don't know how long I can last!"

"There's no need to be in such a hurry, we have all night. Why don't you let me try being on top?"

Cass liked that idea, so the two of them turned over so that Izzy was laying on top of Cass. Izzy took control of the pace, bringing her borrowed pussy up and down slowly. With the new pace set, Izzy leaned forward so they could make out.

Since kissing was one of the most intimate things that Izzy liked doing, the two of them had a ton of experience doing it. Cass moaned into Izzy's mouth as their tongues wrestled each other with practiced ease, and their hands started to explore the other's body.

Izzy liked how soft Cass's boobs felt, so that's where her hands ended up at, and she began to squeeze and fondle the supple flesh. Occasionally she would roll a hard nipple between her fingers, earning an especially loud moan from her girlfriend. Cass brought her hands downwards, resting them on Izzy's hips where she could feel them moving back and forth.

Having Izzy in control felt surprisingly different than when Cass was fucking herself. Without any way for Cass to adjust the speed or angle that her dick was entering her pussy, she never knew when she would suddenly hit a sensitive place. That unexpectedness meant that even though Izzy wasn't making her hit sensitive spots very often, the times that she did felt even more intense. After several minutes of kissing and fondling, Cass felt herself reaching her limit.

"Izzy, I'm going to cum!"

Izzy had been waiting for this moment. She had read a few erotic novels recently, so she knew just what to say in response. She brought her mouth right up next to Cass's ear and whispered, "knock me up~"

Cass lost herself in the fantasy that Izzy had just conjured in her mind. She flipped Izzy off of her and onto her back and drove her cock in as hard as she could, slamming her knot against her pussy several times before it finally stretched enough for her to force in the knot. She felt her pussy stretch to accommodate it, but she didn't let that ruin her fantasy of pretending she was fucking Izzy instead of herself. She convinced herself that she was knotting Izzy, and someone else was knotting her. A small voice in the back of her mind wondered if it was possible for Cass to impregnate herself, but she ignored it. Her knot swelled, locking her inside with the tapered tip of her cock pressed tightly against the opening to her womb as streams of hot cum began to shoot out. Cass hugged Izzy tightly and Izzy hugged her back, overjoyed at how happy Cass looked.

Cum continued to shoot out, filling her womb, and Cass imagined that there was someone behind her who was filling her with cum and knocking her up while she did the same to Izzy. She imagined them both several months from now, each with a big pregnant belly. It was such a hot fantasy that it took a full minute for Cass to stop cumming.

When she was done, she rested her body weight on top of Izzy, breathing heavily as she basked in the warmth she felt in her core from the massive load of cum she had pumped into her womb. Izzy gently stroked Cass's hair, whispering softly to bring her down from her orgasm.

"I love you Cass. I'm so happy that you enjoyed yourself. I wouldn't mind doing this every night."

When Cass recovered from the mind blowing experience of fucking herself, she smiled and gave Izzy a peck on the cheek.

"I love you too."

Since they were knotted together, they decided to roll onto their sides to get more comfortable. They both knew that Izzy just had to take the panties off and they would be separated, but neither of them wanted to separate. They cuddled together and eventually drifted off to sleep, both of them feeling incredibly lucky to have such a wonderful girlfriend.

(Author's Note: This is my first time posting something I've written, so I'd love to hear any feedback or comments that you have. Thanks for reading!