Initially, Tsunade had genuinely approached this with the mindset of a martyr—sacrificing her own purity to save Saiki, believing this was entirely her own fault. However, once the "treatment" began in earnest, the purely clinical act rapidly began to change its flavor.
Tsunade was soon actively kneading her own massive breasts and even guiding Saiki's hands to massage them for her.
Not only that, but after a prolonged period of intense, rapid squats, Tsunade began to feel her legs growing weak and exhausted.
While she wasn't primarily a Taijutsu specialist, her stamina was certainly not lacking. The exhaustion stemmed primarily from the intense, overwhelming physical stimulation. Every time she rose and fell, she was stretched, battered, and pulled by Saiki. The continuous, agonizingly pleasurable shocks rocketing straight to her brain drained her energy far faster than any battle.
Too tired to continue the deep squats, Tsunade shifted her posture from a squatting ride to a kneeling straddle. Even then, she collapsed her upper body entirely onto Saiki's chest, her two massive breasts nearly suffocating him once again.
While delivering another "facial," Tsunade used her core strength to grind her hips, her plump buttocks bucking and rolling to maintain the continuous, relentless stimulation.
At this moment, Tsunade had her hands planted on either side of Saiki's head. Her neck was arched back, her cheeks flushed a dark, feverish crimson, and her pearly white teeth bit down hard on her full, red lower lip. She was desperately trying to endure something, yet her hips continued their frantic, rhythmic twisting, her round, pale buttocks rising and falling with increasing, desperate speed.
Looking at her breathtakingly flushed face, it was entirely impossible to tell if the expression she wore was one of agonizing endurance or pure, unadulterated ecstasy. Was she merely suffering through this ordeal, or was she completely lost in the pleasure of it?
As Tsunade ground against him with wet, slapping sounds, an expression that hovered between intense pain and profound bliss spread across Saiki's unconscious face. His look of sheer, overwhelmed ecstasy was genuinely confusing.
This specific battle didn't last incredibly long. It was Saiki's first time, and it was Tsunade's first time. Whether male or female, first-timers rarely have the endurance for a marathon.
Saiki was undeniably robust, but in his comatose state, "endurance" wasn't really a factor; he was operating purely on primal, biological reflexes.
And Tsunade?
Although she was a virgin, she had long since reached the age where a woman's sexual appetite is famously insatiable—"thirty like a wolf, forty like a tiger." It wasn't surprising that she could hold out a bit longer.
If she hadn't been completely swept up in the moment, Tsunade might have wondered how Saiki was managing to last this long. But, thoroughly intoxicated by the act, she simply focused on grinding her hips as hard as she could, relishing the sensation of Saiki filling the aching void within her.
After a final, frantic series of grinding thrusts, Tsunade suddenly snapped like a puppet with its strings cut. Her body collapsed limply onto Saiki's chest, shuddering violently with intense, rhythmic spasms.
Saiki had also reached his absolute limit. With Tsunade clamping down on him so tightly, enveloped in that scalding, pulsing warmth, the overwhelming stimulation finally forced Saiki to release his very first, massive surge of primal Yang essence.
At Saiki's age, most boys had already begun experiencing wet dreams, just as girls experienced their first periods.
Furthermore, children in the Shinobi world developed much faster physically, and Saiki was already more mature than his peers. Since he actively cultivated Pre-natal Qi—which focused heavily on retaining and refining internal essence—he had never actually had a wet dream. The sheer volume of what he had accumulated was staggering.
Collapsed on Saiki's chest, currently riding the absolute peak of a mind-shattering climax, Tsunade suddenly felt Saiki shudder violently and expand even further within her. Her bliss-addled brain snapped to attention.
"No!" she tried to scream and pull away, but it was far too late.
"Nngh—ah!" Tsunade only had time to let out a sharp cry before her body went completely limp again, her massive breasts burying Saiki's face once more.
Like a dormant volcano suddenly detonating, a thick, scalding torrent was violently pumped directly into the deepest recesses of her womb. Having just experienced her first climax, Tsunade's body was incredibly, excruciatingly sensitive. Being flooded so forcefully pushed her into a state of absolute, overwhelming overstimulation.
But the physical sensation was only half of it. Along with this massive eruption, a titanic surge of rampaging chakra flooded from Saiki directly into her system, nearly tearing her chakra pathways apart with its sheer, brutal force.
This chakra was incredibly domineering. Where it surged, it caused micro-tears in Tsunade's meridians, but the residual energy it left behind carried a profound, miraculous vitality that instantly repaired the damage it had caused.
If Tsunade were to carefully examine her body later, she would discover that countless hidden, chronic injuries accumulated over her long combat career—injuries so deep that even her Yin Seal: Creation Rebirth couldn't fully heal them—had been quietly, perfectly mended.
Even with powerful regenerative abilities, scars and hidden traumas always remain; otherwise, Hashirama wouldn't have died. Healed tissue is never quite as perfect as the original.
After completing a massive, final circulation cycle, the chakra returned to Saiki's body. The chaotic, violent storm within him finally began to calm.
Tsunade lay trembling on top of Saiki. After several powerful, pulsing eruptions, Saiki's shuddering body finally went still, and his chakra stabilized completely. Tsunade was slowly forced to acclimate to the overwhelming sensation of being completely filled with his scalding heat.
After gasping for breath for several long moments, Tsunade finally managed to push herself up. If Saiki didn't possess an inhumanly tough physique, he genuinely would have been suffocated to death beneath her breasts by now.
Looking down at the still-unconscious Saiki, Tsunade's face burned a violent crimson. Not only had she engaged in the ultimate taboo with him, but she had actually allowed him to finish deep inside her. Tsunade truly wanted to curl up and die of embarrassment.
If Saiki had known what she was thinking, he would have absolutely mocked her: "We already did the deed, why are you acting like getting finished inside is the end of the world?"
But in reality, having sex and finishing inside were two very different things. She could justify the sex as a desperate medical treatment, but letting him finish inside meant she was risking carrying his child. That was incredibly difficult to justify.
However, the truth was that regardless of whether Tsunade wanted it or not, finishing inside was the absolute best—and only—outcome. If Saiki hadn't been allowed to release that final, massive surge of chakra into her body for a complete circulation cycle, he would have likely suffered a fatal energetic backlash and died.
Tsunade, being a medical genius, quickly realized this. If she hadn't accepted his "rain and dew," all of her previous efforts wouldn't have saved him; they would have killed him.
Since it was already done, Tsunade didn't want to dwell on it. Her immediate priority was to expel what Saiki had pumped into her. She was currently in her fertile window, and she was genuinely terrified of getting pregnant.
She grabbed a box of tissues from the nightstand—a box Saiki definitely didn't keep there normally. Clearly, Tsunade had come highly prepared.
Because Saiki was so large and Tsunade was so tight, their connection was incredibly deep and secure, meaning absolutely everything had been deposited directly into her womb.
Planting her hands on Saiki's chest, Tsunade shifted into a crouch. She carefully, agonizingly slowly lifted her hips, holding a wad of tissues ready to catch the spill.
Tensing her core and clenching her muscles, Tsunade was terrified of making a mess. With an incredibly loud, embarrassing POP, they finally separated, and Tsunade immediately pressed the tissues against herself.
Without sparing Saiki a second glance, Tsunade scrambled off the bed. She threw a thick layer of tissues onto the floor before finally allowing her abdominal muscles to relax.
Not only did she relax, but she actively used a specialized medical technique to massage her seemingly soft, yet incredibly toned and flat stomach to force everything out.
Amidst the deeply humiliating, squelching sounds of liquid hitting the paper, the steady drip, drop finally ceased. She had managed to empty herself completely.
Once the cleanup was finished, Tsunade looked at the massive, soaked pile of tissues on the floor, her face burning hotter than ever. She knew exactly what a normal man's volume was supposed to be, and Saiki's output was absurdly, comically far beyond the human norm.
She turned back to look at Saiki. Seeing that he was still unconscious, she reached out and placed a hand on his lower abdomen. His previously chaotic, violent chakra was now incredibly calm and stable. However, he still showed no signs of waking up.
Gritting her teeth, realizing what she had to do next, Tsunade let out a long, weary sigh. "I swear, I must have owed you a massive debt in a past life."
As Tsunade prepared herself for "Round Two," looking at Saiki's blood-stained chest and the scattered drops of crimson "plum blossoms" staining the pristine white bedsheets, her heart was filled with a profound, indescribable melancholy.
However, as she grabbed some tissues and, with a deeply flushed face, began to clean Saiki up, she saw that his "weapon" was already standing tall and proud, fully ready for battle once again. Tsunade was genuinely baffled. Aren't men supposed to be exhausted and useless after the first round?
If Saiki had known her thoughts, he would have spat blood in frustration. He was a teenager in the absolute prime of his physical vitality! He wasn't some middle-aged salaryman. Who the hell was she looking down on?!
Since the most painful, difficult "first time" was already out of the way, Tsunade found herself significantly more relaxed this time around. Without even realizing it, she actually began to actively enjoy the experience.
With her previous experience, Tsunade's technique improved rapidly. Riding Saiki now required only slight, subtle twists of her hips to bring them both immense, mind-numbing waves of pleasure.
If Saiki had been awake, he would have undoubtedly confirmed the old saying: a woman in her thirties truly is like a ravenous wolf. Soon enough, Tsunade was no longer satisfied with merely riding him. Her hands unconsciously moved to grab her own massive breasts, kneading them passionately as she rode.
After Saiki's first release, a massive fissure had appeared within his hallucinatory dreamscape. As Tsunade continued her vigorous, relentless efforts in the real world, pushing herself into a state of absolute, feverish hyper-arousal, the dreamscape finally shattered completely. Saiki groggily began to regain consciousness.
The moment his mind cleared, Saiki was utterly bewildered. The stifling heat, the tight, slick friction, and the continuous, overwhelming waves of pleasure relentlessly bombarding his cerebral cortex were intense. Furthermore, the massive, impossibly soft mounds his hands were currently clutching—which were too large for him to even properly hold—made him seriously wonder if he was still trapped in a dream.
He opened his eyes and nearly had a heart attack. Fortunately, Tsunade was currently lost in the absolute throes of passion, her eyes squeezed shut, entirely oblivious to the fact that he was now wide awake and watching her.