Disclaimer: I do not own Naruto.

A/N: I mentioned in my summary that this IS a Naruto/Multi fic. Don't like it? Too bad. Daimyos of this era possessed as many as up to ten wives while being fat oily and with only riches and prestige to maintain their lifestyle and their many concubines.

Now why the fuck can't a young stud with more capabilities to bang a woman into a sweaty puddle of mess do the same? Can you say, "Gang Bang No Jutsu?"

As for the apprenticeship under Tsunade, I'd like to say that YES, Tsunade will end up being one of the eventual few women in his life.

Credits: Lessons of Experience by BukkakeNoJutsu is accredited with the way this fic is with the origin of this fic. Kudos to him as well for figuring out a way to use Hidan's method of killing for healing instead.

But I feel that the most noteworthy of all his work in LOE was his character San. San's style of teaching was a method I myself find highly motivational. Some people just perform better under insane amounts of pressure.

Chapter Two

Relentless rain battered the training ground in thick waves accompanied by the ground rattling thunder. Great flashes of lightning lit the skies. Given the adverse weather conditions, he would have thought Tsunade would most likely look to reschedule the training.

He was wrong.

It appeared that come rain or shine, the Slug Sannin was determined to train. Sitting atop a tree branch and suppressing his chakra, Naruto observed her. From the perspective of an apprentice, Naruto had to appreciate the fact that at nearly fifty years of age, Senju Tsunade had an incredibly toned body.

As a discriminating male, he found her to be as hot, sensual, and beautiful as only a woman ripped from the fantasies of adolescents and transformed into real life could be.

With an absorption wrought from years of social isolation, he studied her incredible breasts, her small waist, the wide flare of her hips and her long shapely legs. The rain brought into display a luscious body covered in a full body leotard filled with enough slinky curves to bleed grown men dry with a generous distribution of mounds of flesh in all the right places. Her blonde hair didn't seem to lose its luster or shine in heavy downpour, and it fell thick and coiled down to her waist. Hey, he was fifteen, he could perv right?

With a sigh, he looked at his watch.

It was time.

Re-adjusting his pants - which had become acutely tight in the last few minutes of his observation - he leapt down from the branch and dashed over to his mentor.

Her blind backhand strike almost decapitated him.

Only a textbook elbow block to the Slug Sannin's wrist managed to stop her hand from shearing off his head.

Even so, pain blossomed in his blocking arm, and suddenly he couldn't really feel it anymore. Instead, a tingling sort of sensation ran throughout his arm, and was spreading towards his shoulder.

A heartbeat later, it was as if his right hand had vanished from under his shoulder.

He backed up a step, and the Sannin's lightning fast follow through sweep kick landed him on his back.

"HeavenLotus Palm Strike!"

Tsunade's hand was a smudged blur before it impacted his stomach.

He could feel the ground beneath his back shatter. The sickening crack of bone told him that strike had managed to at least break five of his ribs.

Frantic, he summoned the Kyuubi's chakra.

Then his mentor reached down to draw her index finger, almost as if lovingly across his throat and just on top of his adam's apple from one ear to another.

His world tilted, and his head fell back in a wash of blood pain. His hands scrabbled against the beautiful woman's hand, whose soft, warm hazel gaze was now alike chips of molten metal. He could feel the skin on his neck peeling back in rolls, revealing the soft muscle tissue of his neck to the suddenly searing rain.

Red. Lots of it. Wait a minute…why was everything…getting…dark….

The pleasant scent of washed linen and lemon soap lulled him back to the consciousness. With a groan, he shifted his head, trying to burrow into the comfortable pillow. It didn't dull the pain that threatened to split his head open. So instead, he snapped open his eyes and propped his head up.

What the fuck?

This was not the standard room he'd so often saw at the hospital. It was brightly decorated with patched of blue and yellow shot through with soft colors of green and brown. The room was sparsely furnished.

"Welcome to the living, Naruto."

He froze.

The voice was abit too close for comfort. He shifted quickly away from the lap of his mentor, and the sudden movement sent him into dizzying spells of nausea again. With a sigh, Tsunade pulled him back. Soft green chakra enveloped his world and he was suddenly feeling loads better.

"What did you do?"

His mentor merely smirked.

"I suppressed the pain receptors around your head and stabilized the blood flow to your brain. As for the fight itself, my moves weren't overly complicated. Any medic worth his or her salt could do it. It was a mix of simple chakra enhanced taijutsu and a unique way of using a medic-nin's technique called the chakra scalpel. You were lucky. My sensei taught me how to dodge, fight and block the hard way. He used an ancient prayer often utilized by Jashin practitioners to inflict mortal wounds on his opponents to heal me back instead. It was crude, but it worked. I will be doing the same for you."

That said, her arm reached out to snag him, and he found himself back in the training ground in a puff of smoke.

He'd only barely gathered himself before he heard his mentor pronounce, "Lesson One: Defense."

And then she charged.

Training with Tsunade was a novelty.

Her heel drops leveled entire terrains and massive hundred year old tree trunks were uprooted with barely any effort and used as lethal projectile weapons of doom.

Against the unyielding super-strength of the woman that was his mentor, Naruto could only learn to quickly gain complete tactile mastery of space, distance and time.

The reasoning was that against such massive area-of-attacks, since even a glancing blow could prove fatal, the defender would have to quickly gain a better perception and body control.

Tsunade had Naruto dodging trees in mid-air where a Katon jutsu variant turned it into a flaming missile.

She had him dodging giant swells of water as solid as steel while submerged.

She had him scurrying underground like a rat while avoiding her Urban Earth Sharks.

After the first hour of training, Naruto belatedly came to realize that the Slug Sannin possessed a frightening proficiency for all five chakra based elements.

Much like her sensei, Senju Tsunade was quickly able to blend a horrifying mix of Kami knows how many techniques to smash and thrash.

After the first week, Naruto quickly learned to use his shadow clones as decoys to full efficiency while maintaining liberal use of his replacement techniques.

Of course, most time if not all the time, Tsunade was still able to glean with terrifying precision exactly where, what and how Naruto was using his clones and subsequently smash him into a puddle of broken bones, torn muscles and dislocated joints.

Most instructors could not have afforded to be as cavalier with the lives of their charges.

Fuck 'most instructors'.

Senju Tsunade reveled in smashing Naruto into the ground over and over again until a certain message had sunk in. Most times, it took her unleashing an entire boat-load of chakra-powered nuclear leg drops and roundhouse punches before Naruto even got the gist of it down.

But then, she had a convenient trick that allowed her to bring her charge back inches from the dead.

That meant that the revival technique was liberally used until she felt that she had sufficiently imprinted a lesson into her charge's head.

She thus acted accordingly.

As for Naruto…it was not uncommon to find breathing suddenly difficult in the midst of their hellish version of 'Dodge'. .

Never mind the fact that dodging hundred foot long, thirty foot thick flaming trees was in itself a feat worthy of inducing heart-pumping, lung-coughing, limb-shaking actions.

It was even more common place to find that when he went to move his right hand, his left feet jerked out from under him.

Those were simple, subtle, opening maneuvers that led to the bucket-loads of pain that the beautiful, sadistic Sannin of a teacher would unleash on him the moment he couldn't move properly.

Senju Tsunade had a million and one tricks up her sleeves and Naruto was slowly learning to anticipate them to defend himself.

Of course, Naruto often found that no matter what, he was just never good enough. When he'd queried her about that one afternoon lying in her lap and eyeing her through the gap in her impressive cleavage, Tsunade had replied: "On the battlefield, you are either good and alive, or good-but-not-that-good and dead. If you're bad, I think it goes without saying. If you're male, you're captured, interrogated, done. If you're female…then it would be better you slit your own throat."

Naruto never questioned her about it again.

Subsequently, her trainings intensified.

In Senju Tsunade's book, if Naruto's chakra perception wasn't good enough to 'feel' the scalpels before they ripped his tendons from his muscles, than she'd keep doing it until he managed to gain an instinctive sense of what the chakra felt like.

If he could not dodge a glancing blow that knocked out the teeth in his lower jaw and broke his nose before putting him through three consecutive trunks, he would have to simply soak up the damage before she dealt out more.

It was only when he was unable to move, beaten, bloodied and dying before Tsunade would stop, revive him, and repeat it all over again.

Throughout the prolonged bouts of bloody violence in his training sessions that more often than not masked the outright child abuse, Tsunade would often calmly, methodically, reiterate his mistakes.

On one occasion, Naruto, angered by how she'd so suddenly started a vicious round of vitriol on his character, had attempted to ram a rasengan into an incoming flaming tree trunk.

Decades of experience and the keenest chakra sensory perception on par with Bloodline Limits allowed Tsunade to know what Naruto was attempting to do before the rasengan had even progressed into the third and final stage.

She body flickered behind him.

One second later, and with a jerk of her wrist, Tsunade dislocated his shoulder.

Two seconds later, Naruto's elbow was bent unnaturally forwards.

Three seconds later, two-fingered fingered jabs landed on either side of his spinal column and Naruto heard his own breast bones snap.

Four seconds later, Naruto was six feet under encased in five hundred pounds or rock solid earth where Tsunade showed that with proper application of chakra, she could make Gaara's Desert Coffin Crusher seem like child's play.

By the end of the first two weeks, Naruto had learned a great many things through his Sensei's crude teaching.

Where other instructors would have taken months, if not years to teach him, Senju Tsunade did it in weeks.

In a battlefield, anger will only get you and your loved ones killed.

In a battlefield, there was only place for calm, cool-headed tactical decisions.

Yet perhaps the one and most important of all things Naruto had managed to learn – was not to be reckless.

The second installation of this story is presented to you by copious amounts of sex, coffee, and Danishes. You gotta love them Danish confectionaries.

But back on topic, in the next few chapters, we go on to find out just HOW much of a use Senju Tsunade can make out of chakra. I've come up with some pretty interesting ideas I've never seen people use before, but hey, power to you if you have.

In other exciting news, I feel that no one(including Masashi Kishimoto) has ever given Tsunade enough credit for being a Sannin. In most if not all of her fights, it seems that she regularly uses only her strength chakra enhancement technique and a few other obscure medical techniques.

The one which she used on Kabuto opened my eyes as to just how much could be done with properly applied medical knowledge. After all, if she could out you back together, she could always take you back apart, right?