Becoming Kurama's - Part 5

Story by KuramaKnot on SoFurry

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Hey all! Enjoy part 5! This one is a lot more kinky than the previous one and maybe not for everyone, fair warning :p

If you notice any mistakes, please leave a comment or note.

Part 4: https://www.sofurry.com/view/1557293

I'm always open to constructive criticism and don't hesitate to comment or suggest ideas ;)


Chapter 5

Previously:

"Well wasn't that nice?"

"Don't try to sweet talk yourself and get on with it." Dark Kurama replied.

Naruto's nose started bleeding a little when he then saw the darker fox turn around and raise his nine majestic tails. They revealed an apparently-soon-to-be-ruined opening as light Kurama stepped forward and gave it a hard lick.

"Khehe, it's like you know me." Light Kurama replied smugly.


Light Kurama roughly licked his counterpart's sphincter some more. Sharing each other's senses came with the perks of knowing exactly what feels good. The fox dragged his tongue hard over the ring in circles. Eventually, just the licking was not enough.

The lighter fox inserted his large tongue all the way into the opening in front of him in one motion. He had to open his maw wide to make sure he could get as deep as possible. The tongue reached just a bit less far than his cock would, without knotting. Still, that was more than deep enough to reach the prostate.

The fox used his tongue to apply the perfect amount of pressure to the darker fox' pleasure spot. Both Kurama's were already hard again. With every thrust of light Kurama's tongue, they both would leak some pre from their tips.

"Let me help you a bit." Dark Kurama said mentally. He used his tails to push the back of his counterpart's head. As a result, the tongue inside him could reach even deeper.

"That's how we like it!"

"You know it! Wait, I can taste my cum here. We didn't do anal yet, did we?"

"Hey you're right! I can taste it too!"

"Lemme pull back."

After their short mental exchange, light kurama started retreating his tongue. When his tongue left the anal cavern a strand of cum could be seen connecting them. Dark Kurama looked back and saw this as well.

"Well, that has never happened before. You came so much in my mouth that it has already reached my ass!" The dark fox grinned.

"What can I say? Dominating the kit gets me going." Light Kurama responded as he nodded towards Naruto, who was trying to stop his nosebleed.

"HMPHMMM." Came the unintelligible noise from the gagged kit.

"In due time, dear kit. I'm not finished yet."

"Let's give the kit a grand finale. I'm itching for more cum in my rear." Dark Kurama said as he wagged his eyebrows.

"Well if you put it like that... Get in position!"

Dark Kurama once again lifted his tails to give easy access. A bead of cum escaped his freshly prepped hole and dripped down his balls. The other fox saw this and took advantage. He licked his counterpart's balls and traced the cum path back to the wide open hole with his tongue.

"Lemme stuff that for you so you stop leaking." He said. With what seemed to be practiced movements, the light fox pushed off the ground with his fore paws. Two steps forward and light Kurama was hip to hip with the darker fox. His cock fit neatly in between the other's ass cheeks, like a hotdog in a bun. Immediately he started humping, trying to find his target with his stiff fox cock... And it did not take long to find said target. Without time to waste, he shoved all of his long vulpine shaft inside.

"OH that's it! Come on, breed us good!"

And that is exactly what light Kurama did. His thrusts were not quick, but long and hard. Every time his knot kissed the darker fox' opening, a loud and wet slap could be heard. With every thrust the bottom kitsune's cock twitched from the stimulation of his prostate, releasing a good amount of pre each time.

Since both Kurama's could feel everything, they did not have as much staying power as usual. Every time light Kurama rammed his member inside, it felt as if he himself got penetrated. This abundance of stimulation quickly drove them close to climaxing.

"Tell me you want my knot!" The dominant vulpine demanded.

"I want you to knot me and pump me full of cum. I want you to empty your balls in me."

The submissive fox started using his tails to help his counterpart thrust even harder by wrapping them around the other's waist. Meanwhile he got bit in the shoulder, which allowed the mounting kyuubi to hump harder still.

The very next thrust was hard enough to considerably widen dark Kurama's opening to make room for the first bit of the knot. Instead of retreating and trying to slam the knot in again, they kept pushing. Slowly, dark Kurama's ass widened more and more, taking as much of the intruding knot inside, until...

*POP*

Light Kurama's knot got completely swallowed by the hole he was stuffing. As per the other fox' request, massive amounts of cum started spurting inside. At the same time, dark Kurama seemed to come out of nowhere again to Naruto's eyes. He saw how the dark fox came all over the ground beneath him, and his underside and front paws got covered in spunk too. Naruto kept staring at the climaxing member and noticed that the mounted fox' belly started to expand a little.

"There ya go. Fresh kitsune cum to fill your belly." Light Kurama said as he was still humping with his knot lodged firmly inside his counterpart.

"KHEHE YES! I can feel myself swelling up a bit! Keep going, keep going!"

And the lighter kyuubi did exactly that. For a while he kept his small humping movements going, all the while still unleashing his spunk inside. Dark Kurama started looking pregnant due to the amount of cum his belly had to house.

"Whew, it really feels like my balls are empty after coming so much. Ready to untie?"

"Hold on a second, if you untie your cum will spurt out my ass like a jet. I can feel that the pressure is immense. The only reason that it's not leaking out is because your knot is so big. I believe it to be a waste if we just let it out on the floor." Dark Kurama responded.

"Okay you clearly have something in mind, what is it?" Light Kurama queried mentally.

"Khe, you know me so well. My idea is that..." The still knotted fox started explaining his idea mentally.

"Ohohoh I'd love to see that. Let's start then." He grinned and started pulling his stuck cock backwards. The knot pulled on dark Kurama's sphincter and forced it to stretch once more. As he pulled his hips back, he quickly materialized a butt plug in his hand. With a wet pop they untied and immediately light Kurama shoved the plug inside, making sure that no cum was wasted and stayed inside.

Naruto could only watch as the two kitsunes had their way with each other. He tried very hard not to think of what was happening in front of him, but he just could not stop looking. His inability to get erect was still frustrating him to no end, as was his inability to participate in the activities of his master.

"Oi, kit!" Kurama said, acknowledging Naruto's presence for the first time in a while.

"Yes, master?" Naruto replied instantly.

"Do you want me to remove that leash and cage for you?"

"Please master, I'll do anything!"

"Khehe good, you still know your place." Kurama grinned devilishly. "You see, my counterpart here leaked a lot of precious cum on the ground and on himself. Why don't you come over here and lap it up while I inspect your new appearance some more?"

With a snap of light Kurama's fingers the pole and leash disappeared from the mindscape. Without any time to waste, Naruto bolted towards the puddle of cum beneath the darker kitsune. Without hesitation Naruto started licking as much cum of the ground as possible.

"No no, kit. Start by licking my fur clean. I want all the cum gone when you're done. Here, start with this." The dark and cum covered kitsune lifted one of his front paws in front of Naruto's muzzle. The kit eagerly lapped at the limb in front of him, making sure that he cleaned the cum out of every nook and cranny. "Khehe, I can dig this cleaning service."

"My, my, aren't we an eager little kit." Light kurama started with a smirk. "Let's start the inspection by taking a closer look at your hind legs and paws." While Naruto kept lapping up the cum, the light fox grabbed one of Naruto's hind legs.

"Look at that, perfectly fox-like. Or should I say me-like, khehe." He noted as he traced over the suit's contours with a finger. Whereas a normal fox would have paws and claws, Kurama himself had more humanoid feet and nails. However, he would never think of himself as more human than fox. Kurama had lost his respect for humans a while ago and wanted to be associated with them as little as possible. So Kurama has paws thank you very much, not hands and feet.

He then traced his finger upwards over Naruto's bum and towards the base of his nine tails.

"And look at these. Nine beautiful fox tails. I really outdid myself with this suit." Kurama grinned as he stroked the tails one by one. That caused Naruto to purr out of reflex and leak a bit of pre from his cage. "Khehe purr for me, little kit. Looks like you're developing proper instincts as well... And now moan!" Kurama ordered before suddenly penetrating Naruto's ass with his tongue, making extra sure that he applies pressure to the kit's prostate.

"AHHH master, please. I can't take it anymore with the cage on." Naruto said as the cage started feeling even more constricting. Even hurting somewhat.

"We may do something about that soon enough. For now, I'm still not fully clean." The dark fox replied. He put his now clean paw down on the ground and lifted the other in front of Naruto, indicating his next task.

The other fox that was currently tongue deep in Naruto's ass withdrew said tongue and applied a few more hard licks to the rim. That earned him some more moans from the kit.

"Now, I - or should I say my cock - has already become acquainted with your muzzle, so I believe that to be in order. The last stop is right... HERE!" Light Kurama said as he grabbed Naruto's foxy balls with quite a bit of force, but not enough to crush them or cause injury. It did, however, earn him a startled yelp from Naruto.

"Hmm, these seem quite small compared to the rest of your body, kit. Even though I can tell that they are about to burst from the amount of cum that is desperate to be released. But have no fear, the size issue is something we can fix." Kurama grinned evilly. "Tell me, kit, what would happen if I were to remove that chastity cage of yours?" He asked.

"I would cum instantly, master. I would cum so much and so hard it would probably land about ten meters away." Naruto replied.

"Wonderful! Why don't you stop cleaning him and wrap your muzzle around your cage." Naruto quickly did as he was told and laid on his side to get better access. "Good kit, you seem to be listening much better." Naruto blushed at the compliment. "Now here's what's going to happen: I'll snap my fingers and instantly that cage will disappear." Naruto's tails wagged in excitement. "Then you will do as you said and cum hard, in your own throat at first. Then, while you are still cumming, I want you to paint your pretty little muzzle in your spunk. Is that clear?"

Naruto nodded. He could not wait to finally get rid of that cage. "Oh, I forgot to mention. I'll be helping you a bit back here." To make his point, the light fox inserted a digit in Naruto's ass and applied some more pressure to the kit's prostate. Naruto moaned around his cock, leaking some precum in his muzzle.

*SNAP*

Kurama snapped his fingers. Immediately the cage that was the source of frustration for Naruto disappeared. In an instant, Naruto's cock became harder than it had ever been as it grew in his muzzle. It didn't even take a second for Naruto's member to reach its full size, and it stopped growing just before the tip reached his throat.

And then the cum came.

If Naruto's muzzle was not wrapped around his member as he came his cum probably would reach the ten meters, judging by the velocity at which the stuff crashed against his throat. The amount of semen was way too much for Naruto to swallow and quickly his muzzle started to overflow.

"That's it kit! Let it all out!" Were Kurama's encouraging words. Naruto could only answer with a yip and a moan. Kurama's digit was still stimulating him as well, adding to the intensity of his orgasm.

Naruto did not know how, but despite the most intense orgasm he ever had, he managed to remember his master's words. He let go of his own cock and placed his head near the tip. The next spurt of cum hit him right between his eyes, before covering his entire foxy face in his own white seed.

Suddenly, light Kurama reached for the climaxing cock with his paw, the one that did not have a finger inside of Naruto. He squeezed hard, preventing anymore cum from being released.

"Ahhh, master. What are you doing?" Naruto asked, clearly annoyed that his intense orgasm got interrupted.

"Well, I need to check the quality of your fresh cum, kit. So hold on a second." Kurama answered. Naruto watched as his master opened his maw and placed the tip on his tongue. Then, the fox gently released his grip until Naruto's cock resumed cumming. A fresh and voluminous amount of cum shot from the tip and into Kurama's mouth. Quickly Kurama squeezed Naruto's cock tightly again, preventing more cum from flowing out.

Kurama withdrew and closed his muzzle before swirling the kit's cum around in his mouth, making sure that he got a good taste of the kit's seed.

"Hmmm... It still tastes awfully human. We will have to do something about that." Kurama thought.

"Ah, master, please..." Naruto panted as Kurama's grip still put his orgasm on hold.

"Oh, I almost forgot... sorry." Kurama apologized sarcastically before completely letting go of Naruto's cock, whose orgasm quickly continued. Naruto made sure that as much of his vulpine looking head got covered in his cum, as per his master's order.

"Khe it seems you were right." Light Kurama said mentally.

"Of course I'm right. The suit may have transformed his cock from that ugly human shape to vulpine, but it did not change his balls and cum." The other fox replied. And it was true. The suit gave Naruto a vulpine penis with knot and all, even though the boy himself did not seem to realise that fact yet.

"Oh well, that simply means that we have some kinky stuff to do. It's a good thing that we kept that cum in you." Light Kurama asked while smirking.

"Yes, but this amount of cum is starting to get uncomfortable. Get the kit ready. He should be done orgasming by now."

They looked over to Naruto, who was laying on his back with his face absolutely soaked in cum. The cum was everywhere and he had to close his eyes because of that. He was still sporting a hard boner, but the cum flow seems to have stopped.

"Look at that, he is already in position. Khehe..."

While Naruto was still blinded and laying on his back, the pregnant looking kitsune walked in his

direction until the fox stood above him, with their faces and cocks lined up. The dark fox licked the bit of cum from Naruto's eyes so that he could open them again.

"Hello there, kit. It is my time to shine now. You see, there is a problem. Your cum still has a distinct human-like taste. That is unacceptable if you are walking around with nine tails. Also, your balls are embarrassingly small at the moment, which is unfitting of a male nine tailed kitsune." Naruto blushed in embarrassment.

"But do not worry. I am here to fix that. Here, feel my belly for a second." Naruto did as instructed. "You feel that? As you saw a bit ago, that is my counterpart's cum in there. Good, potent, vulpine semen. I will be forcing a good potion of it in your balls, through your urethra. That will do the trick. Is that clear?"

Naruto gulped, but nodded nonetheless. He knew that it was going to happen whether he liked it or not.

"Splendid, now here is what's going to happen: Right now, there is a plug in my ass. My counterpart is going to remove that and immediately put your cock in as a replacement, knot and all. Then he is going to watch as your balls get filled by his cum, until they are an acceptable size. It will probably hurt like a bitch, but you will get over it."

"Okay enough chit-chat. Let's get the show started." Light Kurama said impatiently as he walked behind his cum-filled counterpart. He grabbed the kit's erection and pointed it upwards, where dark Kurama's locked entrance was. Then, he reached for the plug that has kept the massive amounts of kyuubi cum from escaping so far.

"Ready, kit?"

Naruto silently nodded. Kurama could tell that he was a bit scared.

"Aww don't be afraid, little kit. Do it for me. It would make me very happy." Kurama cooed. Those words helped Naruto relax a bit. Without further ado, light Kurama pulled the plug out and swiftly inserted Naruto's vulpine shaft.

"SIT, NOW!" Light Kurama said mentally to his counterpart.

"On it! Literally, khehe." He snickered at his little joke, before he pressed his hips down and forced the kit's knot inside. Very little cum got spilled.

Naruto felt two things in that moment. On one paw, he felt like he was in heaven. He was actually knotting his master! On the other paw, he was afraid of what was to come. He could feel the immense pressure from all the cum inside his master pushing on his cock. The fact that he was looking at that giant belly full of cum did not help soothe his nerves either. How is that going to fit in his balls.

"Good job, kit. Take a moment to relax before I start. You know, you are the very first creature on earth that has penetrated, let alone knotted, the kyuubi no kitsune. Well, aside from myself of course."

"Very true! Plus, in a second you will be the first to have my cum in your balls as well!" Light Kurama added as he grabbed Naruto's relatively small scrotum.

That genuinely made Naruto happy. To be chosen by his master. Also, it sounded pretty hot when it is put like that. Naruto steeled his nerves.

"Okay, I'm ready." He said.

"Khe, good. Try to keep that mindset, because here comes!"

As soon as the last words left the pregnant looking fox' muzzle, he started squeezing like one would if he was taking a dump. The pressure quickly became too much and the cum inside him needed space to go. Upwards, towards his mouth, was not an option, because he applied force downwards where Naruto's cock was. It could not really flow out of his ass either, because the exit was firmly blocked by Naruto's knot. There was only one option for the semen to go...

Naruto yelped as he felt the pressure increase. All of a sudden, the opening at the tip of his cock got forced open by the pressure. Immediately he could feel the cum that was inside his master rushing through his urethra. It did not hurt as much as one would think, after all fluid travels through the urethra all the time. The difference was that it never flows in that direction. Until it reached his balls...

"AAAGHH!" Naruto screamed. Having cum flowing in the wrong direction is one thing. It is a whole different story for said cum to force your testicles to expand. It was painful when he felt like his balls were about to literally explode. Light Kurama, who still had Naruto's sack in his paw, simply smiled when he felt his cum filling his kit.

"Khehe that's it. Pump the kit full! And do not worry about anything breaking or tearing, kit. My chakra is making sure that will not happen. Not even I am that sadistic. Just hang in there for about a minute longer. Then your balls will be a size that is worthy of a nine tailed kitsune!" Kurama reassured Naruto as the kit's balls were slowly expanding. That did not help ease the pain however. Naruto clenched his fist tightly to try and cope with the pain. Kurama noticed this and came up with something.

"Do you need something to squeeze to help with the pain?" Kurama asked.

"Yes please! Anything to help!" Naruto did not care. He'd take anything to help lessen the pain.

"I suppose you could squeeze this for a minute." Kurama smirked as he moved over to sit on his haunches next to one of Naruto's paws. He then opened Naruto's fist and placed his sheath in the kit's paw. Because all of the attention was on Naruto for the last while, Kurama's cock had more than enough time to retreat to its furry home.

"Go on. I told you I like it rough. Squeeze that as hard as you need."

Naruto did not need to be told twice and squeezed his master's sheath as hard as he could. Instinctively, the fox started humping, not used to this much tightness.

"I'll give it to you, kit. I did not expect you to be able to squeeze this hard. Not that I can complain, because it feels heavenly. It must really be hurting over there."

"It does! Just... speed it up or something! It's not just expanding my balls, but I can feel it quickly filling up my bladder as well."

"Oh my, that's hot!" "Oh my, that's hot!" Both kitsunes thought in sync.

"You know what, if you push my belly it'll be over more quickly, but it will probably hurt more as well." Dark Kurama offered. He was noticeably less full than before, but there was still an obvious bump. To feel how much Naruto's scrotum has grown so far, he reached behind him with a paw and cupped the considerably enlarged balls before massaging them a little. Already he could feel that the kit's balls had doubled in size. Naruto felt that the gentle kneading helped lessen the pain a bit.

"Please master, just keep kneading like that while I push a bit." For once, Kurama did as Naruto said and let the kit touch his belly once more. Naruto felt that the pressure on his cock was less than when they started, so increasing the pressure a bit more should be manageable. Plus, then the pain would be over sooner.

Naruto pushed dark Kurama's belly a bit and immediately felt more cum entering his urethra. He grit his teeth and squeezed the other fox' sheath a bit tighter as the pain increased as well. The latter action earned him a purr from his master. If he did not need to focus all his attention on his cock and balls, he would realise that he was no longer squeezing a sheath, but a rock-hard red fox shaft.

"You're doing well, kit. I can feel that your jewels are almost big enough. Just a bit more."

"Oh I can *huff* definitely confirm that he is doing well." The lighter fox added, who was ferally humping his kit's tightly squeezing paw.

And Naruto did not need to look to confirm that. He could easily feel that his balls were touching a much lower area of his inner thighs than usual. Besides that, he could feel his bladder being almost completely full. It felt like he just drank five liters of water, errrr... cum.

"Okay kit, punch my belly as hard as you can to get the last bit of cum and you are done!" The knotted kitsune said.

Naruto did not want to wait any longer and did as the fox said. He pulled his fist back (the one that was not pleasuring the other fox), and punched the dark fox in the gut. Kurama was not a feared beast for nothing and did not even flinch. What did happen though, is that in one spurt Naruto could feel the last bit of cum entering his cock and enlarging his balls. That caused a last jolt of pain to shoot through his system and he squeezed his other paw extra hard.

At the same time, light Kurama was still furiously humping and receiving probably the best handjob ever. As Naruto punched his counterpart, he thrust extra hard and even "knotted" the kit's paw just as Naruto clenched his paw. This caused Naruto to unintentionally squeeze his master's knot hard.

Naruto was panting as he felt the intense pain subside slowly. He was relieved. It was over. However...

"Oh yes!" Light Kurama yipped as he climaxed once more. His cum shot straight towards Naruto's still cum-covered face.

"AH!" Dark Kurama yipped simultaneously, also starting an orgasm due to the link he had with the other fox. Since he was pretty much sitting on Naruto's cock, his own member was pointing straight towards the kit's head.

"Gah!" Naruto yelped, startled by the semen that suddenly assaulted him from the side and his front. Luckily for Naruto, it did not take long for the Kuramas' climaxes to stop, because this was certainly not their first orgasm in a short time.

"Whew that was unexpected. Sorry kit, but you squeezing like that felt divine." Light Kurama explained.

"I don't even care. I'm just glad that the pain is over. Can I see the result?" Naruto asked.

"Of course. I would be lying if I said I was not curious myself. Let me untie us." The dark fox said as he started lifting his hips. With a wet pop Naruto's knot slipped out, followed by his shaft. In the process, some left over cum leaked out and drenched Naruto's groin area in Kurama's spunk. Naruto moaned in pleasure as he untied for the first time.

"Oi kit, do you mind giving me my cock back? Then we can take a look." The other fox asked with a sweatdrop. Not realising that he was still holding his master's knot, Naruto quickly released it as if it was a million degrees and pulled his arm back.

"Hehe, sorry master..." Naruto said sheepishly. Kurama gave him an unimpressed look and then directed his gaze towards Naruto's newly sized balls.

"Well would you look at that, much better. My finest creation, if I say so myself. Something worthy enough to be called the balls of a nine tailed kitsune." Light Kurama said. Then Naruto took a look. His balls were about three times their previous size, and relatively speaking almost the same size as Kurama's.

"Maybe I'll have a little taste tomorrow to check if everything is in order." Kurama licked his lips. "But for now, there is one more thing..."

"What is that?" Naruto asked.

"Well, since you were such a good little kit in the end and even gave me the best handjob I've ever had, I'll let you choose."

"Choose? Choose what?" Kurama smirked.

"Well, I believe that your bladder is full of my cum now as well, isn't it? You probably feel like you need to pee because of that. I will reward you and let you choose where you want to dump my precious cum. You can choose anything, even something like my muzzle or ass. You have my word." Kurama explained.

Naruto did indeed feel like he desperately had to relieve himself. He did not need to think long about an answer.

"Thank you, master. I think I know exactly where I want this cum to go..." Before he finished his sentence, a realisation dawned upon him.

"Wait a second... I HAVE A KNOT???"

Both Kurama's laughed audibly at their stupid kit.

TO BE CONTINUED...