I noticed when new people started coming to the village. The new people being ninja from other places. They were a bunch of hormonal and arrogant pricks as far as I was concerned. I do understand that life in other villages can be much more chaotic and violent, but just because you have a shitty village doesn't mean we should have one too.

The best part of the wait before the chunin exams was when Naruto, Sauske, and Sakura came back with Kakashi. There was just no words to describe the amazing and amusing sight I saw. Sauske had turned into a very pretty girl and Sakura was still depressed and freaking out about it while Naruto and Kakashi looked like they didn't know what to make of the situation.

I just pointed and laughed so hard I fell over onto the floor. I mean he was literally better looking as a girl than Sakura and I could tell it was eating her alive.

"Damn it Alex, stop laughing and help me already." Sauske yelled out in a melodious voice that caused me to laugh even harder while he tried to beat me up.

"What the hell did you do to turn into a girl?" I asked after I finished laughing and sat back on my seat at the restaurant I was in. The others all sat down as well and I ordered food for them that I figured they would like.

For Kakashi I got a kebab set so that he could eat and read at the same time. I got Naruto a giant bowl of ramen which made his eyes shine at the size of it. I got Sakura a bowl of chili noodles with diced chicken meat. I got Sauske a plate of barbeque meat with a side of soy sauce.

Everyone looked mildly surprised at the orders I made for them, well everyone other than Naruto, He was in ramen heaven by this point.

"Well to explain how this happened." Sauske said while being depressed. "I'll need to explain about the mission."

Once he got the okay from Kakashi he told me about the mission to take Tazuna to the land of waves and everything I remember from the series happened the same. The only difference between the two was that when Naruto and Sauske were fighting Haku on the bridge Naruto wasn't the only one to use the shadow clone technique. Sauske thought that because he could now tree walk that it meant his chakra control was good enough to use the technique. He was correct, however trying to summon the same amount of clones as Naruto was what screwed him over. He had gotten competitive with Naruto since he saw how fast Naruto was growing and wanted to show that he was growing just as fast.

This of course caused a massive increase in the switch over from yang to yin energies in his body and instead of some minor changes from having only a little bit of extra yin energy he was so far above in the amount of yin that it completely changed Sauske into a girl. When Haku knocked out Sauske it made his body stop fighting the changes in his body and caused him to turn into a girl while he was in a near death state. You could call it a rebirth of sorts.

I ended up letting out a sigh and shook my head. "Well luckily I do know a way to turn you back into a guy Sauske, however because you are a teenager and your body is constantly changing so you will probably go back and forth. Though that might be a good thing since it means that if you can learn to control it then you can change back and forth at will without spending chakra on using a transformation jutsu and anyone who doesn't know what one of your forms look like wouldn't be expecting you in the other form. It'll be beyond useful for any future infiltration or information gathering missions. I also warned you not to use that skill until you could water walk."

"So long as you can turn me back into a guy I really don't care about that right now." Sauske said with a glower.

"Okay, but I'm going to tell you right now that you really aren't going to like it." I said with an evil grin causing Sauske and Sakura to flinch back and have a worried look.

Kakashi turned to me and said in his mild tone. "I'm kind of curious about all the information concerning this situation, however I need to report this mission to the hokage and I will just have to speak to you about this at a later time. As you said, being able to switch back and forth between male and female would allow ninja a wider range of options and could be considered for potentially being used on others for that purpose."

"I would advise against that seeing as while the change is easier to cause, turning it back is a rather unpleasant experience."

"Very well, but I believe the hokage and others will have questions regarding this process."

"I'll come by tomorrow to speak about it." I nodded in acceptance. "Of course since this could technically be considered an S class technique I do expect to get some privileges and maybe some goods for this." I told Kakashi with a shark grin.

"I'll pass on the message." He nodded before getting up and leaving with a kebab in one hand and his book in the other.

"I guess I'll get going too." Sakura said while sending looks at Sauske. "I hope that you get better soon Sauske." She then walked off looking for all the world like she had just been dumped by her boyfriend.

Naruto also left after I told him that I wouldn't buy him another bowl of ramen, but I would buy him one at a later time after I helped Sauske get back to normal. I think I might have just became one of Naruto's favorite people.

After that I took Sauske home and brought him to my room and had him sit on the bed as I gave him an inquisitive look that made him squirm a bit in discomfort.

"Okay, so I have two ways to turn you back into a guy." I started which caused Sauske to sit at attention. "Neither of which are pleasant, however one of them gets more pleasant after a little while and can feel great by the end. It will however be very unmanly for you and will be something that you will probably be too embarrassed to ever admit to anyone."

"The other way starts painful and will be a lot more so by the end. It will leave you exhausted and out of commission for at least a few days and will probably require you to not use most of your chakra for at least a week or risk undoing it and having to start again from the beginning."

"So what is the two ways then? It's kind of hard to pick which one I want as being embarrassed and just getting it over with isn't much depending on what it is. Though if it's too much then the other way sounds like it is better even with the pain and the not being able to use chakra for a week." Sauske asked worriedly.

"The first way is to have sex with either me or Naruto." I said with a deadpan look at the look of horror on Sauske's face. "Naruto is full of yang energy and he could offset your yin energy easily. I on the other hand have very precise control of my chakra and can fill you with my yang energy without losing control over my yin energy and making the problem worse."

"You are right. That would be something that I would never ever tell anyone about. It would destroy my image if that ever got out." Sauske said while gritting his teeth. "What's the second way?"

"The second way is that I use senbon needles to force your chakra points to remain open and then I flood your chakra coils with yin energy to force your body into producing yang energy to offset my own while slowly adding in yang energy. I don't think I need to tell you what the risks of doing this would entail." I said seriously.

"Yeah, at best I might take on some of your personality or looks, at worse I could end up enslaved or crippled for life. Not to mention that you weren't kidding about it being painful since having your chakra force itself into my system like that will cause my own chakra to fight back."

"Yes, however that is one of the reasons it would work since the longer I add in my chakra the less chakra you have and the more yang energy will be in your system causing you to slowly go back to being a guy."

"Yeah, but that won't be worth much if I end up your slave." Sauske said with a depressed sigh. "I have my own things I need to accomplish, like getting revenge on the people who caused my clans death. Are you sure there isn't any other ways?"

"Nope. You can't do it yourself since if you try to turn your chakra into yang it would cause your chakra coils to collapse from the change over while doing so and since your chakra wouldn't be supporting your coils and keeping them stable during the change, it would end up killing you. This is doubly so since your chakra was what caused your change over in the first place. Even worse is what would happen if your body didn't release the excess energy it produced to balance itself and caused you to explode."

"The only choice you have is for someone to add enough yang energy into your body to offset your yin energy. The longer you wait the more ingrained your coils will get with your current self and if you reach adulthood and stop growing and changing then you will be stuck this way. I can only change you back because you are still a teenager and your body isn't completely set and is still going through changes, not to mention that you have lived your whole life as a man until this point and it will be much easier to push it back towards the male side."

"Fine, I get it." Sauske said while raising his hand while covering his face with the other. "I can't accept the second way since becoming a slave or having my personality shift would end up making me next to useless as a ninja for at least a while due to me then having to fight that mentality. I really don't have a choice other than to use the first choice, but I swear that if you tell anyone, if you so much as think it at someone. I will kill you and then myself." Sauske said while glaring at me.

"I really don't get what you're so freaking out about, it's just sex. It's not like having sex between a man and a man or a man and a woman or even woman and woman is something so shameful. Sex is nothing to be ashamed of". I said in mock sorrow.

"I get it, but I still don't want you telling anyone about this." Sauske whined.

"Fine, fine. I won't tell anyone." I said waving my hands. "Though you will need to pretend to be laid up in bed for the next week or everyone is going to know the truth since I'll need to tell the process to the hokage and possibly the council tomorrow."

"Okay, I can do that. I'll just deal with this like a medical procedure, yeah that's right, this is just a medical procedure." Sauske said repeatedly to convince himself before standing up with a raised fist clenched while looking like he was about to go into a life or death battle. "So how do we start this?" He asked all fired up.

I tried so hard not to laugh since he was being beyond cute right now. I think his female self is starting to affect his mind, but whatever. "Well for starters you need to strip." I told him while also standing up and beginning to take my clothes off.

Sauske looked like his sails had just had the wind sucked out of them as he just fidgeted nervously.

"What's wrong Sauske?" I asked in a mocking tone. "Afraid your body isn't as great as mine?" I told him while flexing and showing off my muscles. "Well I guess you probably turned all soft now and wouldn't have anything worth showing off anyways?" I said dismissively.

"I am not soft." Sauske said while ripping off his clothes and also flexing. The fire of competitiveness back in his eyes. His pride and drive to be the best causing him to not think straight.

"You know what, let's just get this done with." He said as he grabbed me by the arm and pushed me down on the bed and climbing on top of me.

I was a little surprised by how forceful he was being and kind of liked it, but when he roughly grabbed my penis and moved it to the entrance of his vagina I only had a moment to think about whether or not he still had a hymen before he went down on me with full force. He instantly froze and I only felt it for a single moment, but Sauske still had his hymen fully intact and had just taken me in without even trying to get wet or make my penis wet. It had to be beyond painful.

"Oh Sauske, you poor idiot." I sighed out as he started to tear up from the pain. "You've never studied about sex have you?"

"Why would I have ever needed to learn about that? It's simple, you just put a penis inside of the woman's vagina and when you ejaculate inside of her she gets pregnant and has your child. I never knew that it would be so painful though." He said with gritted teeth.

"Sauske, that is the absolute worst possible explanation of sex I have ever heard and doesn't even begin to touch on anything involved in making the sex enjoyable for either party involved." I lightly scolded him as I covered my face with my hands.

"Okay, I'll have to pull out and I'll be teaching you how to have sex properly. I told him which caused him to have a look of panic on his face before I slowly lifted him off of me and moved him to the side of me where he just laid there in near shock from the feeling of pain he was in. There was a good amount of blood on his crotch. I simply took a rag from beside my bed and wiped him off as gently as possible.

"Okay well to start with, when you are trying to get a girl in the mood you start off with making out and using light caresses." I told him as I pulled him over to me and started kissing him and running my hand on his sides and his breasts. Which by the way were actually double Bs.

He froze up for a second before slowly getting into the kiss. After a couple of minutes of making out our breaths were quicker and he was slightly flushed. He had a glazed look in his eyes and I just looked at him a bit in wonder over how he actually was rather attractive this way. I thought he would be against this with how he was acting earlier, but maybe Sauske wasn't as against sex as he pretended. I think Sauske might actually be gay and just be in the closet. It would explain why he never even looked at girls and only showed interest in guys.

"Then when you have her getting properly aroused you slowly use your mouth and hands to tease her body and make the girl feel even better to get her ready for the act of penetration." I almost whispered as I kissed down his neck and used my hands to play with his nipples before going down to his vagina which had started to become moist from his arousal. Sauske kept letting out small moans and his body kept twitching at what I was doing. I then proceeded to lick him and use the skills that I had learned from my previous life to make him feel even better. It only took a moment before Sauske's back arched and he let out a cry from his first orgasm as a woman.

I then moved up to his face and gave him a kiss before moving away again as he was still breathing fast and was still slightly dazed.

"Then once the girl is properly aroused and her vagina is properly lubricated and ready only then can you start to enter her." I said as I positioned myself at his entrance. Sauske froze up for a moment before I quickly entered him causing him to moan from the feeling.

"It feels completely different from before." Sauske said while panting.

"That is because you didn't do anything to prepare. One of the shinobi rules is to always be prepared." I said with a teasing grin. "You failed quite badly Sauske."

"Whatever." He said with a blush and turning his face away.

"The next part is the actual sex part I whispered in his ear." He quickly turned his face back to me and I quickly kissed him before starting to move.

Sauske made some moans while we were kissing and when he reached orgasm I also reached it as well. I filled Sauske full of my semen while making sure to pump as much of my yang energy into him as I could.

You can however imagine my surprise when Sauske told me it was his turn and flipped our positions and started riding me like he had been trying to do before. We ended up going for three rounds before he was finally satisfied.

"That was rather pleasant." Sauske said with a tired grin. "You said that I will be able to turn back and forth in the future if I train my body to do it?"

"Yeah, you just need to practice controlling your yin and yang to change between the two. I put enough yang energy into you to push your imbalance back to the halfway point where the two sides are equal. You can choose to become one or the other or train to switch back and forth."

"I think I'll train to switch back and forth. It seems like it would be a useful skill to have. He said before turning his face away. Also, I wouldn't mind doing this again, sometimes." I heard Sauske whisper out.

I just gave him a kiss on the cheek and told him to get some rest. We could start training his body tomorrow.

He just hummed and then fell asleep. I kept an eye on him and saw as he slowly changed shape back into a guy before I got up and left the room. No need for an awkward wake up. His male side was also surprisingly feminine now and unless you checked in his pants you would just think he was a flat chested girl.

I went downstairs and got something to eat before Tsun walked up and sniffed me before saying with the most dead tone imaginable. "So even Sauske couldn't escape your clutches Alex. Thank goodness I never learned to transform into a human or I might have been another one of your mates."

"No need to be jealous Tsun. You know I love you just the way you are." I told her as I ruffled her head.

"Stupid." She mumbled before walking away. Her words were cold, but her tail told me she was happy.

"Even being able to seduce animals now, how terrifying". I heard Shizune say from the doorway. "So I guess you slept with female Sauske huh?"

"It was to get him to balance his yang and yin chakras. This time at least." I told her with a smile.

"I wonder who will be next on your list of conquest." She said with a light smile. "So long as you don't start ignoring those you already have, I don't mind sharing. Just make sure you keep me satisfied and make Tsunade happy."

"Of course, after all I would never make the ones I love unhappy by leaving them for someone new. Plus, I don't think Tsunade is willing to admit that I make her happy seeing as she still won't sleep with me unless she is pretending to be drunk. I honestly think that it might take a while before she is willing to admit to that."

"True, but even so I just wanted you to know my thoughts." Shizune said as she moved over to me and put her arms around my neck.

"I'll keep that in mind." I told her before giving her a kiss. The kiss ended up in a make out session that eventually turned into a full blown sexcapade in the kitchen.

After which I then went and fell asleep on a couch in one of the offices.

The next day I went to the hokage's office and gave my report on the interchangeable sex technique.

The basis of it was that teenagers who are capable of chakra control can be induced to have their yang reduced or changed into yin for boys and yin to yang for girls to cause them to switch sexes. Due to the hormonal imbalances in a teenagers body this would allow them to have their bodies switch between both sexes easier as their hormones are not set for either sex at that moment. By using one of the two treatment methods it would allow the balance between the two energies to reach an equal amount of both yin and yang. If the ninja teenager has proper control of their chakra they would be able to switch between the two sexes and if done repeatedly until they reached adulthood they would have their bodies be used to it and be able to continue doing so.

I then told him about the two ways to balance out the chakras.

"So." The hokage said with a slight smirk. "Which method did you use on Sauske?"

"I have nothing to say as that is a confidential matter between a doctor and his patient". I told him with a serious face.

"Well, I can already guess from how Sauske's personality is." The hokage sighed.

"As far as this technique goes, it would be very useful. However I believe that a third option would be to create a pill with condensed yang or yin energy that could be used to start the process and to change the person back. Though I won't tell Sauske about this third choice and will just pretend that it just happened to slip your mind." The hokage said with a shark grin as I started sweating a bit.

"Hahaha." I laughed nervously. My dang penis is making me stupid. Sauske is going to murder me for this later.

"So we will give you permission to read up to four scrolls from the S rank jutsu library, though we won't be telling you what each one contains. We will also pay you 1 million ryo for this technique as well."

"Thank you hokage sama." I said with a bow. I was being respectful to him and not calling him gramps since there were five of the council members as well as Danzo and the heads of R and D and the head of the Hospital all in one room. I also knew that the only reason why I was getting such a special treatment of reading so many S rank scrolls was because of how much work I had done on condensing the libraries upper sections.

He nodded his head and told me I was excused. I quickly made my way out of the office and went to the reception desk to receive my permission form to read the S class scrolls.

After I returned home from reading the scrolls and learning a few new jutsus I went and found Sauske in my room still. He was sitting down while meditating and only stopped after a full ten minutes before noticing me.

"Well, I got some bad news and good news." I told him with a nervous smile. "Which do you want first."

"Seeing as I'm already pretty sure I know the bad news from how nervous you are lets hear the good news." Sauske sighed.

"Well the hokage came up with a third method to fix the imbalance that is less invasive then my methods and he has made the sex change jutsu into an S rank jutsu that we are not allowed to talk about to anyone ever unless it is to explain what happened to you. Only we are to be as vague about it as possible, including how you changed back."

"Okay, and how is that good?" Sauske asked a little irritated at me.

"Well the good part is that he gave me a million ryo and let me read four S rank scrolls."

"Really? What did you get?" Sauske asked suddenly at attention to learn anything that would be classified as S rank since it would all be extremely powerful in it's own way.

"Since I know that you aren't getting much from all of this I decided to use my first scroll to look at a S rank scroll with lightning style jutsus. They were mostly all stolen jutsus from the village hidden in the clouds and include a lightning Armour, a lightning blade, and a lightning movement technique. I'm not sure if it is as good as the fourths movement technique though since his allowed him to move where he had a kunai placed where this one lets you move to a place within eye sight. I guess it depends on whether you want the element of surprise or to use a preset version. In any case I'll teach you them both so you can start practicing them."

"Thank you." Sauske said as he jumped up and hugged me before letting go and backing off in embarrassment. I just had a smile at how shy he was being.

"The second scroll was one of Orochimaru's medical experiments. It talked about his shedding skin jutsu and how by using a coat of chakra under the skin would allow one to instantly heal from any wounds that were only skin deep and only leave scarring if it managed to get to the muscles. It also told about how to become as flexible as he was. I used that as a base to build up a brand new training that I was going to start."

The way I saw it the sanin were split up into an almost perfect three of body perfection and I had plans to combine their life's works to become a physically perfect ninja.

Tsunade worked on chakra and senses. Orochimaru worked on skin and the bones. Jiraya worked on muscles and the organs. The three combined to have knowledge on the entirety of a ninjas physical body.

I was already working through all of Tsunade's information and had gotten through almost all of it. I had already been working on increasing my senses which had helped quite a bit when I was tracking the animals for my extermination missions and it was reaching the point where I could now use heightened sense almost perfectly with almost no chakra maintenance. The chakra part was already done a long time ago since I had been training chakra control since I was born and all I needed to do to use Tsunade's information on chakra was to expand my chakra channels and work on the constant swirl in my chakra coils by using her special breathing technique.

"The third scroll was a scroll on medicines and poisons. I just wanted the information from that one to make my own." It had almost all known poisons and medicines in existence. I kind of wonder if Granny Chiyo has her own version of this scroll.

"The final scroll I read was the scroll about the 8 gates." I swear that Might Guy was completely insane to be trying to use this basically suicidal technique. It literally would cause the body to stop functioning and would kill the user by the age of fifty without a doubt. It was designed to be used once for a suicide power up.

I was going to have to try and change it and hopefully stop this technique from being used.

"So what was the bad news." Sauske asked with a look that already told me he knew what it was I was going to say. He was right.

"The hokage and everyone else already knows that with your personality you would never take the chance of being enslaved or having your mind altered by my personality. So because I had only told of two options to fix it they knew I had sex with you. Also Shizune, Tsunade, and the twins know since they could tell."

"Oh god, my life is over." Sauske said as he dropped down with his face in his hands as he turned into a girl subconsciously.

"Well look on the bright side." I said with a smile. "You can now openly practice your control and will have it down before the start of the chunin exams."

"The what now." Sauske said looking up at me in shock.

"Yeah, the chunin exams are going to be held this year in our village. I saw the paper on the hokages desk while I was handing over my scroll with the sex change technique on it. The chunin exams are going to be held in July and from what I know you and your team qualify to take them."

"That's great." Sauske yelled jumping up and hugging me again. "What are we waiting for, I need to get training right now. There's no time to waste." He cheered before trying to lift me off the ground to go training.

I smiled and gave him a kiss which caused him to go into shock for a moment before melting into it. When we separated he looked up at me in a slight daze and asked. "What was that for?"

"Well I decided that since you want to train so much I would give you a punishment for failing to notice that you had turned into a girl and was holding me so tightly."

"What?" Sauske exclaimed in shock having only just now noticed that he had changed. I of course responded by rubbing his butt and making him blush.

"If you don't change back soon I'm going to punish you some more." I told him while moving my hand under his pants and playing with his butt some more.

Well, from there Sauske failed to change back and we had sex. For the next week Sauske would work on his switching until it became almost natural. Of course if he failed he would take an hour or two of punishment. Though I'm pretty sure some of those times were on purpose.

He also became really good at switching while moving and in mid fight. It threw me off when I went to grab his arm for a lock only to grab his hand since his arms were shorter in his female form. He also managed to kick me a few times by kicking at me and when I was mid dodge he switched to his male form and caused his legs to become longer making me need to dodge even farther and throwing off my balance. Judging distance with him was nearly impossible.

In an almost twist of fate Sakura came over and sneaked into the backyard to watch the training and got to see me punish Sauske. From then on I would occasionally feel Sakura's chakra in the area watching us and I would make sure to give her a nice little show. She could only enter because Sauske and the others had all been invited in before for team building exercises before.

I decided to just help her with her issues she was having by sneaking up behind her one of the times I felt her spying on us and caught her fingering herself while looking at Sauske.

I grabbed her from behind and fondled her breasts, which were rather small, and whispered in her ear to be quiet or Sauske would notice her.

Sakura had let out a small squeal in shock, but stayed silent after that and I could feel her tensed up while I went and rubbed her nipples. I told her how I knew she had been watching Sauske and me and started to tease her by talking about how the fingers I was using had been all over Sauske. I asked her how did it feel to have the same fingers that had been in Sauske inside her as I took over fingering her. Sakura breathed heavily and became even more wet at my words and actions.

I then pulled out my penis and asked if she wanted to get fucked by the same penis that had fucked her darling Sauske and she was only able to moan when I felt her clench on my fingers. I took her from behind and didn't stop thrusting until I had felt the irritation I had felt from all the years of her constant harping about how great Sauske was be completely released. So basically around five hours of sex in various positions where Sakura had basically been broken mentally from trying to hold back her moans and orgasms.

I ended it by having Sakura clean my penis with a blowjob and could tell that she was well and truly willing to do anything I said. Of course she went back to watching Sauske right after, even while being covered in my cum.