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Tails' Sister

WARNING: This story contains brother/sister incest, if this bothers you, please bail out now!

Several more years have passed since Tails and Sachiko first met during their days in high school. From the beginning of their relationship, the (then) two-tailed fox and the female vulpix were quite happy together as their relationship was full of passion and full of sex from the very start. The two of them were married just after high school and began a family of their own with a vulpix daughter named Yuki. Since high school, Tails was able to get a job developing computer programs and hardware, bringing in a significant amount of cash to support his wife and young daughter. Though Sachiko could've chose to find a job of her own, she decided that she'd devote all of her time to raising Yuki since Tails was bringing in more than enough money to support the family.

Other things about Tails' life have changed as well since high school. For starters, when he married Sachiko, he moved out of his parents house, moving to another town about 60 miles from home. This way he could have his own life with Sachiko and their daughter while also being close enough to his mom and dad to visit them. Another change that has occured was in his physical appearance. Since high school, he has sprouted two more tails, making a total of four tails as the kitsune genes inside of him were becoming more evident.

Furthermore, his powers have increased to where he's able to generate wind speeds equivalent of an EF-5 tornado with his tails...although it comes at the sacrifice of not being able to fly with his tails anymore. In addition, he also has the capability of generating powerful winds from his mouth. Whenever he did this, his blue eyes would change color, glowing bright yellow right before he opened his mouth and released a blast of 100+ MPH winds. Of course, his powers were still growing and he wouldn't be at full strength until he had grown all nine of his kitsune tails, which would take several more decades.

He rarely used his kitsune abilities though, knowing that they'd do a lot of damage to property if he unleashed them...especially with his tails. Besides, he had a peaceful and happy life with Sachiko and Yuki as the now four-tailed fox and female vulpix were already starting to think about expanding their family as their now 3-year old daughter had been asking them for a baby brother or sister. Miles and Sachiko did indeed plan on adding to their family, hopefully a son this time around, but it would have to wait until after the next school year began as Miles had another summertime tradition that he's kept ever since he moved away from home.

Since Miles moved out of his parents' house, he had left his little sister alone with their parents. While their mom and dad cared for Tammy just as they always did, the young vixen missed her big brother when he wasn't around as she had always been close to him. If also helped that she was also a kitsune, with two tails just as her brother had when he was a pup. Because of this, Miles and Tammy had a strong bond with each other and Miles didn't want to be separated from Tammy for an extended period of time. As a result, Miles came up with an idea to have Tammy spend some more time with her big brother.

Every summer, during Tammy's summer vacation, Miles would make the trip back to his parents' house to pick up Tammy and bring her back to his house to spend the summer with him. Sachiko had no problem with having Tammy over for the summer since Tammy seemed to see Sachiko as a "big sister" and seemed to respond to her with the same kind of sweetness that Tammy displayed towards her brother. Furthermore, Tammy was also able to look after and play with Yuki, giving Miles and Sachiko some free time to themselves every now and then so they could have some more adult fun.

Today happened to be the first day of Tammy's summer vacation, which meant 3 months of not even having to think about schoolwork as well as 3 months of being able to bond with her big brother. As she has been every year, Tammy was very excited and anxiously waited for Miles to arrive home to pick her up. While every year Tammy felt the excitement of a young vixen pup, waiting for her big brother to come home and spend time with her, she was starting to undergo the change from pup to vixen. Tammy was 11-years old now and since the last time she saw her brother, she had grown several inches in height. Furthermore, her breasts were beginning to swell as they were currently about "B"-cup and continuing to grow.

While she wasn't sexually mature, the process was well underway and within another year or two, she'd be a sexually mature young vixen and likely in the market to find a boyfriend of her own...even if her father didn't want to think about the prospect of a male (outside of Miles) having sex with his little girl. Tammy was beginning to learn about sex at the end of this past school year, but still had some things to learn and to experience for herself. Fortunately, she wasn't quite ready to release eggs yet, which meant there was little or no chance of Tammy getting pregnant even if she were to have sex now, but still her father hoped that Tammy would be careful with sex until she was old enough to start having pups of her own.

He knew that he could trust his son with Tammy, but outside of Miles, he secretly hoped that no other male were to have sex with his daughter until she was out of high school at least. Still, he knew that it was ultimately Tammy's decision to make when she wanted to have sex and hoped that when she did make the decision she'd be smart enough to be careful while doing it.

At the moment though, all that Tammy thought about was seeing her big brother again as she sat on the edge of her bed, wearing her favorite white dress with red trim and matching white shoes. Her two tails were coiled around each other in anticipation, waiting for her brother to arrive so she could show him how much she missed him. She had spent the entire morning packing, gathering everything she wanted to bring with her for the next three months, along with a few things that mom and dad told her to bring. Now, Tammy knew he was on his way over and would be arriving at anytime to pick her up.

Meanwhile, Miles was driving from his mountain home down towards his parents' house as he had his eyes focused on the road, but his mind started to wonder about other things. He knew Tammy was close to the same age that he was when his parents taught him about sex...including having sex with his mother to see what it felt like. He also remembered what his father told him shortly thereafter about how Miles was to be Tammy's teacher when the time came.

Though Tammy never really showed any signs that she was ready to be taught this lesson, Miles continued to wonder how much longer it would be before Tammy asked him the big question. In addition to that, Miles also felt curious about what sex with Tammy would feel like, which got his foxhood to unsheath a bit as he was driving. He had been hoping that Tammy would be ready for this lesson soon so that he could honor his father's wish as well as satisfy his curiosity about what sex with his sister would feel like. However, Miles would continue to wait until the time was right before he'd show her as his thoughts soon turned back towards driving and his shaft retreated back into the sheath for now.

After about an hour of driving, Miles' car arrived at his parents' house as he stepped out of the car and walked towards the front door. His mom and dad were waiting for him as they welcomed their son back home with a hug from both and a kiss on the cheek from his mom. Meanwhile, up in her room, Tammy heard her parents downstairs and knew that her brother was home as her ears perked up and she squealed with joy, bursting out of her bedroom as she saw her brother standing next to the door.

"BIG BROTHER!!!", she exclaimed happily as she rushed towards Miles at full speed, giving him little time to react to his four-and-a-half foot tall sibling as she tackled him to the floor and held onto him tightly.

Then, Tammy started to nuzzle against him and plant kisses on his cheeks, making her big brother blush and smile to her playful behavior. "Big brother I missed you so much...I've been waiting to see you again for a long time!", Tammy exclaimed sweetly as her nuzzle softly brushed against his while Miles put his arms around Tammy and responded to her sweetness.

"I missed you too", Miles told his sister softly as he gave her a kiss on her cute nose before letting go of Tammy. "Now, could you please let go of me so I can get back up...we'll have plenty of time for this when we get home", Miles added as Tammy obeyed her brother and got up off of him, allowing Miles to get back to his feet. "There...that's better", he mentioned as he was standing upright and looking down towards Tammy. "Go gather your stuff and bring it with you", he instructed Tammy as the gleeful young vixen listened to her brother and ran back to her room to grab her bags.

As Tammy was busy, he turned towards his parents as a thought crossed his mind. "Is it just me, or does she seem to be a bit more frisky than she used to be", Miles asked his parents as while it was common for Tammy to come running towards him whenever he came home, she had never done anything like this before.

"Well, she is a growing girl Miles...she's not as small as she used to be", his mom explained to him as his father had something else to mention.

"That's not all that's changing with her, son...she's also growing in other ways and you might find out what I mean by that in the near future", his father added, referring to the fact that Tammy was going through puberty and was also learning about sex ed in school. "I want you to be careful with her...if she asks you the big question, I want you to show her, but I also don't want her to come home pregnant with her brother's pups either. I don't think she's ready for that yet, but you never know when her body will mature to the point where she'll be able to reproduce", his father added as Miles nodded.

"Don't worry dad...I've prepared for this. I already have a box of flex-mesh condoms* at home, or if she'd rather have it the natural way, Sachiko has something that she could give Tammy", Miles mentioned to his dad before Tammy came back with two suitcases full of clothes and stuff as well as her backpack with more stuff in it.

"OK...I'm ready to go", Tammy announced gleefully as her two tails were waving behind her as mom and dad made their way over to their little girl. After receiving hugs and kisses from her parents, Tammy was released to her brother's care as the two siblings walked back to his car as they left to go back to his place.

On the way back towards home, with Tammy sitting next to him in the passenger's seat and all of her stuff in the back of the car, Miles had a little bit of alone time to bond with his younger sister. "I took all of next week off from my job so I can spend as much time with you as I possibly can. We can go out together, just you and me and do some of the fun stuff you want to do", Miles told his little sister as Tammy's two tails continued to move a little as she looked towards her big brother.

"Do you think we could go to Splash City?", Tammy asked Miles curiously as she had seen the ads for the waterpark on TV and had been dying to go.

"Sure we could...I've been wanting to go there myself and try Tsunami Cove", Miles responded favorably to his sister's question. However, Tammy had something else to mention as well.

"Of course, I'll need a new swim suit first...I don't think my old one will fit me anymore", Tammy added as she hadn't worn her old swimsuit since last summer and she had grown since then.

As Miles kept driving towards home, he heard his sister's response and came up with an idea. "Don't worry sis, Sachiko is going to be going shopping at the mall tomorrow...you can go with her and she can help you pick out a new swim suit", Miles answered as Tammy began to blush a little bit.

"Actually...I'd rather have you come with me to pick out a new suit, because I was thinking of getting a bikini and I want a boy's opinion on what looks attractive", Tammy responded as Miles' eyes opened wide as he suddenly slammed on the brakes of the car. He was caught completely by surprise over his sister's words.

"Tammy...why would you want a bikini, you're 11 years old...shouldn't you wait a few more years until you're full grown before you go for that kind of stuff. Besides, what would mom and dad say if they knew you bought a bikini?", Miles asked Tammy as she looked at her big brother with her bright blue eyes.

"But, I want the boys to think I'm sexy", she exclaimed to her brother as Tammy's mind was beginning to focus on what she recently learned in school. Still, Miles was unsure about what to say to his sibling.

"Tammy, don't you think you're a little young for that...I mean, you're still growing up and it'll be a few more years before you become a vixen. Wouldn't it be better if you waited until you were a couple years older before going after a boyfriend?", Miles asked his sister as she kept looking at him as she seemed to have her mind focused on her body.

"But I want to know what it's like...I've learned all about it in school, but I still don't understand what it actually feels like to have sex", Tammy responded as her true intentions were revealed. The combination of her changing body as well as curiosity had led Tammy to have a strong desire to have sex as soon as possible.

"Is that what's been bothering you?", Miles asked curiously as he remembered back to what his father told him years ago and figured this may be that time to give Tammy that lesson. Tammy nodded in response as Miles put his arm around his little sister and looked into her eyes. "Tammy...having sex just for the sake of having sex is not the answer. It's always better to do it with someone who really does love you and cares about you", Miles explained to Tammy as the young vixen listened to her older brother. "I know you're young and curious about it, but you have to be smarter about what you do with your body...otherwise, you could end up being a young mother without anyone to support you", Miles added as Tammy leaned towards her older brother as the car remained stopped.

"But I really want to try it...I heard about how it feels from a couple of my friends and I'm curious to experience it for myself", Tammy mentioned to her brother as Miles decided that the only way to satisfy Tammy's curiosity was to give her the lesson himself.

"Tammy, I want you to think hard about what I'm about to ask you", Miles explained to his sister as she nodded in response. "OK...when I was your age, I was curious about sex as well, so much so that mom and dad taught me everything I wanted to know about sex, which included feeling it for myself with mom. Because I'm your brother and dad's probably too old to give you this lesson himself, I'd like to offer you the same chance to learn about sex from me. However, I'm going to leave it up to you Tammy. If you'd rather wait for another boy to come along, I won't pressure you to do this", Miles told Tammy as the young vixen kept listening and thought about it.

As she thought, Tammy's eyes looked up and down at her big brother as her mind soon wandered down to what was between his legs as sexual curiosity seemed to win over her. "OK...I'll do it", Tammy gleefully answered as she immediately tried to take off her shirt as she seemed ready to do it right now. However, Miles was not.

"Whoa...hold on there a second. We can't really do it right now, there's people around", Miles responded to Tammy. "Wait until after we get back to my place, then I'll be able to figure something out for us...OK?", he asked Tammy as she reluctantly agreed to her brother's suggestion, keeping her shirt on as he began to drive once again.

Miles continued to drive until they arrived at his house a little bit later. Upon arriving at home, Sachiko was waiting for her husband as Miles went to her immediately and put his arms around her, nuzzling his wife when he got home. At the same time, 3-year old Yuki saw her aunt come out of the car and immediately ran towards Tammy, latching onto her as she was excited to see her aunt.

Of course, Tammy didn't mind Yuki's affection and was polite to her young niece, picking her up in her arms since she was relatively light and carrying her inside while Miles and Sachiko stayed outside to talk. After a few moments of hugging and nuzzling, Miles soon remembered that he had something to do with his sister and as such, he also had something to ask of Sachiko.

"Sachiko...do you remember that thing that I told you about before we got married. You know, that one thing that my dad wanted me to take care of when the time was right?", Miles asked Sachiko curiously as the female vulpix immediately knew what he was talking about.

"Oh...you mean about how you said that your father wanted you to teach her about sex in the same way that you learned it from them?", Sachiko responded as Miles nodded in silence. Even though Sachiko seemed to be OK with the idea before they got married, Miles still wasn't totally sure about how Sachiko would feel about him sticking his foxhood into another vixen...even if she was his sister. "Honey...why are you acting like this...it's not a big deal, lots of girls Tammy's age learn about sex from their family members. In fact, my father taught me about sex when I was a little younger than she is", Sachiko added before putting a hand on Miles' cheek. "Besides, she's your sister and she loves you...don't you think it would be best for Tammy to learn it from someone she already loves rather than have some random boy give it to her?", Sachiko continued as Miles looked at his wife and nodded.

Sachiko then kissed Miles on his lips as her hands gripped his butt cheeks lightly. "You don't have to worry about me being jealous of you sticking it inside your sister's vagina...I know that no matter what happens you'll have plenty of love for me", Sachiko explained to Miles after the kiss before moving over towards one of his ears. "Besides...I'll expect you to teach Yuki about sex when her time comes...after all, there's no better teacher for that than her father", Sachiko added as she whispered in his ear, which made Miles blush and feel nervous. "Don't worry about that now honey, you've still got a while before that time comes...just concentrate on your sister for now and I'm sure that after you show her, you'll feel more at ease about teaching Yuki when she gets to that age", Sachiko continued as Miles started to relax as he began to focus more on his lesson with Tammy.

"You're right sweetie...I should relax...I mean, I know Tammy loves me and I love her...what can possibly be so wrong about two siblings expressing their love for each other physically?", Miles mentioned in response as another thought came into his mind. "Unless, I were to get Tammy pregnant at the same time, causing mom and dad to go off the deep end on me for knocking up my baby sister", he mentioned as Sachiko nodded in response to her husband's comment.

"Yes...we can't have that now, can we", Sachiko answered as she looked at Miles. "I can handle that for you though...let me talk to your sister before you teach her and I can give her some of my special lotion to use. Since she's a kitsune, it should work on her", Sachiko responded as Miles agreed before the couple headed inside.

For the next few hours, things were relatively uneventful inside the house as Tammy got to spend sometime playing with Yuki while Miles was sitting in the living room thinking about what he was going to do with Tammy. He wasn't sure if she wanted to go all out right away or if she wanted to explore a little bit first before he mounted her. However, Miles did want to go all out for Tammy since she seemed willing and whatever Tammy wanted, he was willing to give her. In the meantime, Sachiko was able to catch up with Tammy, giving her a bottle of the special lotion she used whenever she and Miles had sex. All Tammy would have to do was to rub a little bit on her stomach before having sex and it would keep her body from ovulating for 24 hours. Then, after dinner, Miles had a chance to catch up with his little sister again as it was starting to get late in the evening as he had come up with an idea of how he wanted to handle the situation.

In the guest bedroom where Tammy would be staying, Miles came into the room and saw Tammy laying on the bed with the bottle of lotion sitting on the table beside her. She noticed her brother walk in as her ears quickly perked up and her two tails began to coil around each other. "Hello big brother...is it time for my lesson?", Tammy asked eagerly as her young vixen body was trembling with excitement, anxiously awaiting the touch and feel of her older sibling.

Miles looked at Tammy and responded. "Not quite Tammy, but soon enough", Miles explained to his sister as he made his way over to the bed and sat down beside her for a moment. "First I'll need you to grab the bottle Sachiko gave you and get your shoes back on...I'm going to bring you somewhere special", Miles added as Tammy immediately sprang up from her bed with all the eagerness of a horny young vixen as she grabbed the lotion and put her shoes back on, soon going around to the other side of the bed where her brother was, grabbing one of his arms.

"Well...what are we waiting for...let's go!", she exclaimed happily as Miles got up from the bed and walked with Tammy towards the front door. From there, they made their way back to his car and drove a few miles from home up towards the hilly terrain that surrounded the city. Miles knew of a place there that was private and had a great view of the valley below, looking down at the city as the lights would come on at night, making it twinkle in the darkness. Of course, at this time it was still evening and the sun was still up, but it would soon go down over the other side of the hills, which would make for a nice sight for Tammy to see on her special night.

The private spot was hidden behind a patch of bushes, obscured from the view of most as most people assumed there was nothing there but a cliff. However, Miles knew what was really back there. Behind the bushes was a patch of grass that was large enough to support a pair of grown foxes, providing just enough space for them to have sex and turn a successful tie, just as he and Sachiko had done in the past. There was a cliff below the spot, but there were guardrails at the edge of it that would ensure nobody would go over if they did go back there.

This was Miles and Sachiko's private mating spot...they first discovered it shortly after they got married and it was the same spot where Yuki was conceived. Miles wanted Tammy's first time to have something special about it, so he figured he'd take her out to the private spot and give his sister a view of the hills and the city at sunset while also giving her a night she'd remember for a lifetime.

Miles had parked his car at a parking lot about a quarter-mile from his spot, at a public scenic overlook where many others came to watch the sun go down over the hills on the otherside. Because the others were so busy looking at the scenery, Miles and Tammy were able to move without being detected by anyone, taking pathways and trails that he was familiar with as he brought Tammy towards his private spot.

After a few minutes of walking, Miles and Tammy arrived at the patch of bushes where his spot was hidden. He took one more look around to make sure no one was looking and once the coast was clear, he pulled back a few of the branches from one of the bushes and advised his sister to crawl through on her hands and knees.

Tammy obeyed her brother, crawling through the small open spot as she made her way to the other side right before Miles came in behind her, also crawling through the opening. Once they were on the otherside, both Miles and Tammy had a few leaves and twigs attached to their clothes and fur, but they would be removed rather quickly as Tammy soon stood up and took a look around. She saw everything that she could see, the hills on the otherside of the valley appeared dark as the sky became red-orange in color, helped along by a veil of cirrus clouds that made everything around them turn orange as the sun was getting ready to set.

While Tammy was busy looking at the sky, the hills, and everything else, Miles figured that now was the time to prepare for what was to come as he took off all of his clothing and put it off to the side. Then, once he was naked, Miles sat down on the ground and began to stroke his sheath a little bit to stimulate his cock and make it come out for Tammy.

The tip slowly emerged from his sheath, pointing upwards as he stroked it while watching Tammy looking at the sky and the hills. From his vantage point, Miles was able to get a good look underneath Tammy's dress, seeing her pastel pink panties underneath them with as they seemed to be a bit tight on her. He could see the outline of her vaginal lips against her panties, which helped to further stimulate Miles. It didn't take him long to become fully erect as his entire length had appeared from the sheath and was now sticking straight up for Tammy, leaking with small amounts of precum. He didn't want to go off before he had a chance to show her, so he kept rubbing his cock slowly to keep it stiff while waiting for Tammy to notice him.

By now, Miles didn't really seem concerned about having sex with his little sister...in fact, he was starting to get anxious for it as each pair of his tails coiled around each other and his ears stood up while he masturbated, waiting for the moment when Tammy would look back to him.

It took a couple more moments, but Tammy looked towards her brother just as the sun disappeared over the horizon as she was surprised to see Miles' erect fox cock standing straight up as it twitched a little. "So, that's what a real one looks like", Tammy commented curiously as she moved in towards her brother as Miles noticed Tammy coming his way and stopped rubbing his cock, removing his hand from it.

"That's right Tammy, I made it nice and stiff for you", Miles answered as he continued to sit and relax, allowing his sister a chance to explore for herself as she got down towards her knees as she came up to him. "You can go ahead and touch it if you want to", Miles added as Tammy quickly seized the opportunity and wrapped a hand around the meat of his shaft.

She immediately felt her brother's warmth in her hand and was intrigued by it. "It feels so warm and stiff...and I can even feel it twitching in my hand", Tammy responded curiously as Miles placed a hand on his little sister's cheek, rubbing it lightly.

"That's because it feels happy that you're touching it Tammy...it loves to be touched and rubbed, especially by girls", Miles mentioned to Tammy as the curious young vixen looked at her brother with wide eyes.

"Can I rub it?", she asked curiously as her hand gave it a squeeze when she asked the question as Tammy's curiosity was quickly growing.

"You can rub it for a little while Tammy, but you'll need to stop rubbing when I tell you to", Miles answered as he wanted to actually put it inside Tammy's vaginal canal before he shot his load for her, not have Tammy give him a handjob until she made him cum. Fortunately, Tammy was a good girl and she listened to Miles, rubbing his cock just like he was before as Miles began to moan softly while his shaft throbbed with delight. Precum continued to appear at the tip of his member, which caught Tammy's eye as she looked at the tip of it.

"What's this stuff coming out of it?", Tammy asked her brother curiously as Miles looked down to her.

"It's called precum Tammy, it comes out of a male's penis whenever someone starts to make him feel good down there", Miles explained as a fresh spurt of it left his tip as Tammy's hand rubbed and squeezed his excited fox cock. "Ah...just like you're making me feel right now", he commented excitedly as Tammy's eyes lit up with delight to her brother's reaction.

While she was rubbing his cock and seeing the precum spurt from his tip, Tammy began to feel something herself. Her crotch began to feel strangely warm and began to twitch a little on the inside as the sight of his cock was getting her vagina to react instinctively. Her tails began to swish in a playful manner as she rubbed his shaft, keeping her eyeballs focused on Miles' length as her hand kept rubbing it up and down while her own body was beginning to feel the urge to be touched.

A wet spot soon formed in her panties, which made Tammy immediately stop what she was doing when she felt it and blushed. Miles saw his sister's reaction and came to her side. "What's the matter sis...I thought you liked what you were doing to me", Miles asked Tammy as his sister looked at him and blushed.

"What's happening to me...I was looking at your penis and feeling happy and all of a sudden I felt a wet spot in my panties", Tammy told her brother as she blushed shyly while Miles took his sister in his arms and hugged her.

"There's nothing wrong with you Tammy, that's supposed to happen. You see, when a girl likes a boy and feels sexually attracted to him, her vagina will become warm and wet. When you were touching me, you must've felt excited about seeing my penis and as such, your body became sexually aroused", Miles told his sister softly as she listened to her older brother.

"You mean, it's normal for me to feel like this?", Tammy asked Miles curiously as she began to calm down a bit while Miles decided to go a little further and reached into her panties, rubbing his fingers across her vaginal lips as Tammy's ears soon perked up and she began to moan softly.

"Absolutely...see how it feels when I touch you down there", he mentioned as Tammy began to smile while her vaginal walls became wetter and started to react even more to her brother's gentle touch.

"Yes...I can see how it feels...mmm...it feels so good and ticklish", Tammy mentioned softly in between moans as her young vagina was being rubbed by her brother. Of course, with Tammy sexually aroused and his foxhood fully erect, Miles had something else to show his little sister.

"I know something that will feel even better", Miles told his sister playfully as he kept touching her vaginal lips, wondering if she'd be interested.

Sure enough, Tammy's curiosity was stirred when he mentioned it. "What is it...what can feel better than this?", Tammy asked her brother curiously as Miles began to blush as he nuzzled his sister's nose.

"Having sex of course...when you rub me, it feels good to me...when I rub you, it feels good to you. However, if we were to have sex, we'd be able to rub against each other and both of us will be happy. Plus, you'll know what it'll feel like to do it once you're ready for a boyfriend of your own", Miles explained to his sister as Tammy giggled for a moment but then looked eager to try it.

"What do I have to do?", Tammy asked her brother curiously as she seemed willing to accept his foxhood into her vagina.

"First of all, you'll need to remove your dress and your panties...you can take off your bra if you'd like, but you don't have to if you don't want to. Then, I'll need you to put that lotion that Sachiko gave you by rubbing some of it on your belly and leaving it there to dry. After all of that is done, I'll need you to get on your hands and knees for me and put your tails off to the side of your body...then, all you need to do is wait for me to come up towards you and I'll take care of the rest", Miles explained to his sister as she listened to his every word, as she followed his advice after he had let her go.

Tammy slipped out of her dress first before removing her panties and exposing her vaginal lips, much to Miles' curiosity and delight. His cock twitched a little as a fresh spurt of precum launched from the tip to the sight of his sister's folds, knowing that he would soon be inside of them. "That's a good girl...now, go ahead and take the lotion and rub some on your belly, right around where your belly button is", Miles instructed his sister as Tammy continued to follow his advice, taking a handful of the lotion as she rubbed some across her belly.

"Ah...it feels cold", Tammy mentioned as she applied it as the lotion had a cooling effect when it came into contact with her skin, though it would only last for a few moments as the ingredients in the lotion began to go to work, ensuring that Tammy would not ovulate during sex. After a few moments of applying the lotion and as the cooling effect began to calm down, Tammy went ahead with the next part of her brother's instructions as she got down on her hands and knees. However, she was facing in the opposite direction and was staring directly at him while his cock kept twitching excitedly. "Like this?", Tammy asked him curiously as her two tails were raised high as Miles looked at his inexperienced sister.

"Well...not quite...first you'll need to turn around so you're looking away from me", Miles instructed as Tammy did as her brother told her, turning around so that her rump was now facing towards him with her wet vaginal lips in plain sight. "Mmm...that's better...now, drop your tails down to the side for me", he added as her tails were still raised high.

She did lower them, dropping them off to one side of her body while Miles began to crawl up behind Tammy on his hands and knees. "There we go...now all you need to do is relax and wait...you'll be able to feel me soon enough", Miles explained to Tammy as he came up behind her slowly, his foxhood standing fully erect as it dripped precum down onto the ground below. He intended on having sex with her in the traditional fox way, giving her the complete experience of what it would be like for her to have sex with a male of her own species. However, since he knew she was a virgin, he knew he couldn't go all out on Tammy right away...he'd have to take it slowly until her body adjusted to his fox cock.

As such, he wouldn't mount her in traditional fox fashion...at least not right away. Instead, once he was close enough to Tammy, he stood on his knees as he positioned himself directly behind Tammy and reached down towards his fox cock, aiming the tip at her vaginal opening and letting it touch against it just a little bit. As it did so, a spurt of precum launched from the tip, just inside Tammy's passage, letting the young vixen feel it. "Ah...it's touching me", she exclaimed as Tammy's vaginal opening twitched a little in response to her brother's touch while Miles waited behind her, about ready to push it into Tammy.

"Are you ready for this Tammy?", he asked her curiously as she looked back towards her brother as Miles kept his tip touching against Tammy's opening.

"Yes...I'm ready...please show me what sex feels like", Tammy answered in response to her brother's question as her young vaginal walls seemed quite eager to accept her brother's cock inside them. Miles knew there was no turning back now, he was touching Tammy's vagina with his cock and she just gave him permission to stick it inside her.

Still, he progressed slowly, pushing his tip against Tammy's vaginal opening until he felt it slide through. The initial feeling of penetrating Tammy's virgin vagina made his balls start churning and his tailhole quiver a little. "Ohh...Tammy!", he called out happily, feeling the extremely tight walls of his sister's vagina around his throbbing and precum-dripping fox cock as it slowly advanced deeper inside. His four tails were lifted high off the ground as he felt sexually stimulated, fighting the temptation to give in completely to his urges as he knew he had to take it slow until she was used to him.

He kept pushing forward into Tammy, reaching further into her canal until he had placed everything but his knot into her. Then, he remained still for a moment, letting Tammy feel what his length was like inside her as it kept pulsating and leaking precum into his little sister's tight vaginal passage. "Are you doing alright Tammy?", he asked her softly, stroking the sides of her body as he remained still.

As for Tammy, her feelings were a bit mixed at the moment as she felt her brother's large and excited fox cock inside her tight vaginal folds. On one hand, his precum was launching deep inside her and the heat from it combined with the heat of his shaft did feel good to her. However, at the same time, her vaginal walls were being stretched by Miles' shaft in ways she hadn't counted on, which made the feeling of having him inside her cause some discomfort. "It hurts a little bit", she commented to her brother as he remained still inside Tammy and kept his hands on her hips.

"It'll be alright Tammy, it only hurts because it's your first time...give it a few minutes and you'll feel better", Miles calmly told his sister before he caressed her sides for a moment before going back to her hips. "I'm gonna start moving now Tammy...I promise to take it slow and easy with you until you adapt to me", he added as Tammy looked back to her brother and seemed to trust him right before the older male fox began to slowly move in and out of his sister's vaginal canal as his shaft throbbed strongly with approval. "Ahhh...I can't believe how good she feels", Miles thought to himself happily as his cock moved through Tammy's folds, still producing precum for his sister as it spurted from his tip while his balls were busy mixing a fresh batch of seed to deliver into Tammy once he was knotted to her.

The temptation to give in to his natural fox urges and mate with her at a more rapid pace continued to remain strong in Miles, but as much as they tried to control his behavior, he was able to fight them off as he thought about Tammy's welfare first. She needed time to get used to his fox cock and enjoy the feeling of sexual contact. Until then, he had to behave for Tammy, he did not want to cause injury to his little sister, especially considering the fact that the two of them loved each other very much.

Meanwhile, on her end, Tammy was still adjusting to the feel of her brother's cock slowly moving in and out of her. She could feel it rubbing against her vaginal walls, causing them to be stretched out each time he pushed into her canal. Each time this happened, it caused a stinging sensation that made her ears twitch briefly and made her hands dig into the ground beneath her as she tried to cope with the discomfort of being deflowered. However, after a little while, she could start to feel more sensations inside her canal that had been overpowered by the stinging sensation of having Miles' shaft inside her.

First of all, she started to notice that her brother's cock was pretty lively inside her, throbbing strongly within her folds as the blood vessels within his shaft were feeding it, making it strong and hot for her. In addition to that, as time wore on, the stinging feeling that she was feeling before was growing less noticeable and beginning to be replaced by the enjoyable rubbing motion of his shaft against her walls that a more experienced vixen would feel.

Eventually, the stinging sensation went away completely as the feeling of pleasure continued to grow, making Tammy start to moan softly with happiness as she began to like having her brother's cock massaging her vaginal canal. Miles continued to move slowly inside Tammy, but began to notice that her demeanor was changing and she seemed to be happier now. "Are you still doing alright sis?", Miles asked Tammy cautiously, wanting to know how she felt so he could decide what to do next.

"Mmm...I like how it feels as it rubs against me", Tammy commented softly as her vaginal walls now started to react to her brother's cock as they had been thoroughly stretched out and began to squeeze back against his maleness, catching Miles' attention. "I also like how hot it feels inside of me", she added happily as her tails stood back up and started to wag a little as Miles saw that Tammy was beginning to enjoy sex and seemed ready to go on to the next level.

"Put your tails back down for me Tammy", he calmly told her softly as Tammy listened to her brother, dropping her tails back down to where they were. "That's better...now, seeing as you're all warmed up, I think it's about time we picked things up a bit", he mentioned as Miles decided now was the time to give in a little more to his sexual feelings. He leaned down over her back and held onto her hips tightly as his height advantage allowed him to reach his sister's nuzzle as he rubbed his cheek against hers. "Now I can show you how foxes REALLY mate", he told Tammy playfully just before he started to thrust at a more rapid pace, making her moan louder while Miles began to pant excitedly.

"Ahh...yes...this feels much better", he thought to himself happily as his shaft gleefully rubbed against his sister's vaginal walls, feeling her tighten around his member as it did so. While he was thrusting, he was perfectly aware that Tammy's vagina was becoming hotter to him from the friction of their mating while at the same time her juices were flowing more freely, aiding in the movement of his cock through her tightness. His knot was now also bumping against Tammy's vaginal lips on a constant basis, adding to the pleasure he was already giving her as Tammy felt her brother both on top of and inside her, giving her a feeling she had never experienced before.

"Ahh...I can feel it rubbing against me", Tammy exclaimed as she felt her brother humping her at a more rapid pace, feeling the thickness of his cock massaging her walls as they began to spasm and tighten around him, further stimulating her brother's sexual desires.

"Mmm...that's because it feels so good when it's inside you sis", Miles told his sister as he was continuing to thrust while beginning to move from side-to-side a little in true fox fashion as his knot was continuing to bump against Tammy's vaginal lips. "Am I making you feel good too?", he asked Tammy curiously, wondering what his sister was thinking.

"Yes...I like having my big brother inside me...I like how you're rubbing against my insides and making me feel hot and excited there", Tammy answered eagerly as she was now totally into the experience as Miles smiled and licked the side of her face with his tongue.

"It's not over yet Tammy...the best part is yet to come", he mentioned as his knot kept hitting her vaginal lips as it craved entrance into his sister's warmth and tightness. At the same time, his churning balls were feeling very heavy as they had built a large load of his seed to be injected into Tammy once he had knotted and grown to full-size. Miles wanted to wait a little longer before he knotted Tammy, but the younger female's curiosity had been stirred by her brother's comments.

"Show me", Tammy asked him curiously, as she wanted to know what the 'best part' of sex was. However, given that she was a young vixen, Miles wasn't totally sure if he should go all the way with her yet.

"Are you sure you want me to do that now? Wouldn't you want to wait a few more minutes before I showed you what comes next?", Miles asked his sister as he kept humping her from behind, feeling the length of his cock rubbing vigorously against her tight and hot vaginal folds as it twitched strongly within her.

"Please...I want to see what the best part is", Tammy responded insistently, not content with being patient to discover what the 'best part' of sex was as it had been described by her brother.

"Alright...if you insist", Miles answered his sister as his cock sped up inside her while his knot bumped rapidly against her vaginal lips, trying to penetrate them. At the same time, all four of his tails started to raise high in the air as his arousal was growing rapidly, feeling the desire to cum inside Tammy's young body grow more intense. Precum was shooting into Tammy regularly as the young vixen felt it hit the lower part of her womb.

"Your precum is going deeper inside of me and feels warmer", Tammy told her brother happily as Miles kept thrusting at an eager pace while his fox instincts were driving him to knot his sister.

"Mmm...just wait until you feel what I have in store for you next sis. I'll give you something that will feel even better", he responded happily as he gave into his horniness and was now focused on completing the union between them. He kept thrusting rapidly and bumping his knot against her vaginal lips for a few moments until it finally pushed through Tammy's vaginal opening, immediately beginning to grow as the massive load of cum inside his nuts was preparing to be released.

Through natural design, Tammy's vagina began to hug her brother's knot as it became bigger, quickly catching her attention as she felt it expand inside her. "Ahh...you're getting bigger inside me!", Tammy exclaimed as her hands gripped the ground again, feeling the growth of Miles' knot while her own body tried to hug it tightly.

Miles wanted to tell Tammy what was going on, but he was enjoying the feeling of knotting his sister too much to want and tell her. Besides, she had learned about the function of the knot in school, so he figured that anything he said would be repeating what Tammy already knew. Plus, he had a large amount of seed in his nuts that was driving him crazy, making his balls churn wildly as his shaft had thickened inside Tammy and his knot was approaching full-size.

A few moments later, he stopped humping Tammy as he clutched her hips tightly, feeling his knot now at it's full size while Tammy's vaginal walls held onto it firmly. The two of them were now stuck together and would remain stuck to each other until Miles had finished giving Tammy her hands-on lesson. That's when Miles finally let his sexual tensions be released.

"I LOVE MY BABY SISTER!", he shouted gleefully as his load left his swollen nuts and started to blast forth from the tip of his maleness, shooting through Tammy's cervical passage as it began to pool inside her womb.

On her end, Tammy could feel the new sensation in her body as she also heard her brother's proclamation of how much he loved her. His seed felt a lot stickier and warmer than his precum did, and it also tingled inside her body, making her feel ticklish as her walls spasmed around her brother's knot. "I love you too...big brother", she told him softly and sweetly as Miles couldn't help giving Tammy a kiss on her lips after that as both of them blushed during the kiss. However, both of them liked the feeling of kissing each other and especially liked it now that Miles was busy shooting his load into his sister's reproductive tract while they were stuck together.

After the kiss, Tammy looked at her brother curiously as her blue eyes looked into his own as she had a twinkling in them. "Do you think we could do this again?", Tammy asked her brother curiously as Miles continued to blush, but also felt happy about having gone this far with Tammy.

"Sure we could...in fact, this could be our own personal way of showing how much we love each other. Though we'll have to keep it private for now...just between you and me", Miles explained as his initial climax slowed down to the point where he was giving periodic spurts of his seed to Tammy as he was ready to turn the tie with her. "Now then...are you ready for the finale?", Miles asked Tammy as her ears perked up as she looked at him.

"You mean there's more?!!", she answered surprisingly as Miles licked the side of her face again.

"Of course there is, haven't you learned the true meaning of why two foxes tie each other yet?", Miles asked Tammy as she looked a bit confused. "Don't worry sis, you'll see in a minute", he added as he let go of Tammy's hips with his knot firmly stuck inside her just before he climbed off her back and turned around so they were facing opposite directions.

The two siblings were now tied in true fox fashion with Miles still slowly inseminating Tammy as he was stuck to her. The tugging feeling of her vagina on his knot helped to coax more seed out of his balls and into Tammy's womb. The two siblings then looked back at each other as they were tied together as Tammy's vagina suddenly spasmed around Miles' knot, tugging at it a little harder. "See Tammy...this is what it really means to 'tie the knot'", Miles explained to Tammy as his sister looked at her brother curiously as she began to blush a little.

"Does this mean that we're married now?", Tammy asked her brother curiously as in her heart she seemed to like the idea of being permanently bonded to her brother.

Miles looked back at Tammy as his four tails gently wrapped around her lower body while they were tied. "Well...not exactly...for starters, I'm already married to Sachiko. Plus, I don't think it's possible for a brother and sister to get married in the first place. However, this is what happens when two foxes are in love with each other", Miles explained to his sister as Tammy giggled playfully while feeling her brother's knot stuck inside her and his seed slowly filling her up.

"I would be your wife if I could", Tammy told her brother happily as she didn't seem to mind being married to her brother if she could do so. However, as much as Miles loved his baby sister, he knew he couldn't.

"Tammy, I can give you the same kind of love that any fox boy will be able to give you. However, we cannot marry each other. We can be lovers, but we can never be true mates...that can only be accomplished when you marry someone outside of our family", Miles explained to his sister as he came up with an idea. "But, because you're a fox like me and you'll have a very long life ahead of you, I'm sure you'll want to have someone who will be able to share time with you when you're grown up. I can help you with that...if you'd like to move in with Sachiko and I once you get done with high school, you can come live with us. I'm sure she won't mind having you around, especially since you're so good around your niece", Miles explained to Tammy as they continued to remain tied together while he kept inseminating her.

However, Tammy had one other question for her brother. "I want to have a family of my own when I get older...do you think we could make pups together?", Tammy asked her brother curiously.

Miles let out a sigh as he knew his body was pumping in lots of fresh sperm for his sister...all of it going to waste as he knew it was being shot into an immature reproductive tract. However, at the same time, she was his sister and he didn't know what would happen if he really did impregnate her. "I don't know sis...for now, let's try not to think about that. When we're both a little older then maybe we can discuss it a little more, but for now let's just keep the relationship between us the way it is now", he commented as Tammy decided to listen to her brother and focused on their tie as they remained stuck together as they looked over the city and the hillside.

By now, it was starting to get dark and the stars were coming out over the hillside. The city below was aglow with light as Tammy could peek over the railing while being stuck to her brother and look at all the pretty lights. She was also starting to feel tired as the combination of getting later in the evening and hot fox sperm inside her reproductive tract made her yawn a little bit, catching Miles' attention. "Feeling tired sis?", Miles asked his sister softly as Tammy looked to him and nodded. "Why don't you go ahead and catch a nap for a while...we'll be stuck like this for a little longer. If you're asleep after I pull out, I'll take care of you", Miles added as Tammy listened to her brother and nodded as the young vixen gave into the tired feeling and soon fell asleep while the feeling of hot fox sperm still tingled inside her young womb.

As Tammy started to sleep, Miles slowly emptied his load into his sister, looking back to see her resting sweetly while their bodies were stuck together by his knot and her walls. Even as Tammy rested, her body instinctively held his knot within her until his seed had been firmly planted in her womb. In all, their tie lasted about 45 minutes, lasting a little longer than normal because of the tighter squeeze of Tammy's body around Miles' knot. However, it did eventually end as Miles pulled his shaft out of Tammy's vaginal passage, leaving behind a bit of his leftovers dripping from her opening.

She was fast asleep when Miles pulled out of his sister, still on all fours with her tails off to the side as she probably was dreaming about him while she slept. In fact, Tammy was so sleepy that she didn't even wake up when he turned her over onto her back so he could get her panties back on as well as her dress. Then, after making sure she was dressed, Miles got his own clothes back on and then picked Tammy up in his arms, carrying her back towards his car before driving back towards home.

Upon arriving at home, Miles took his sister directly towards her bedroom for the next three months as he didn't bother taking her back out of her dress and just set her down gently on the bed. He covered Tammy with a blanket and made sure she was comfortable on the bed before he leaned down to kiss Tammy on her lips. "You had a big day today sis...but now it's time for you to rest up because we'll have even more fun tomorrow", Miles told his sister softly after kissing her just before turning around to head back towards the door. Before he left the room, he turned back towards Tammy as she was asleep in bed. "Goodnight Tammy...I love you", he told her softly and sweetly just as he gently closed the door to her room to give her peace and quiet.

As the door closed, Tammy's ears twitched for a brief moment as she heard her brother's words and began to smile. "I love you too...big brother", she quietly mentioned briefly before her ears returned to normal and she fell back into a deeper sleep, resting after her first sexual experience with her brother. However, given what happened between them, it would be far from the last time they got together this way.

To be continued?

Miles "Tails" Prower is (C) to Sega, Sonic Team, etc. Tails and Tammy's parents are (C) to Archie Comics, Sega, etc. Vulpix is (C) to Nintendo, Game Freak, etc. Tammy is a character created by me based largely on the "Rule 63" version of Tails and I already mentioned where he comes from. All characters in this story (not created by me) are used for fan fic purposes

*: These condoms are designed to be flexible around the area where the canine knot would be, stretching to accommodate its growth while also maintaining its structural integrity.