As an innocent young boy, what should you do if you wake up one day to find that a beautiful, mature, sexy, and alluring older sister—someone you know very well—is taking advantage of you?
Asking for a friend. It's urgent!
The sheer shock caused Saiki to swell even further, bringing him dangerously close to erupting right then and there.
Tsunade, caught in the rhythmic rise and fall of her own making, was entirely lost in the moment and completely oblivious to the sudden change in Saiki. She was simply basking in the profound sense of fullness he provided.
Saiki's mind was in absolute chaos, yet the continuous waves of intense pleasure radiating from Tsunade's movements made it incredibly difficult to focus.
To make matters worse, Saiki had to meticulously regulate his breathing and heart rate to ensure Tsunade didn't realize he was awake.
Fortunately, Saiki was generally highly disciplined. He quickly regained control over his physical reactions, maintaining the chakra circulation of their dual cultivation while trying to piece together exactly how he had ended up in this situation.
Following his union with Tsunade, Saiki felt a distinct breakthrough; his mind felt clearer and sharper than ever before. As long as he concentrated, he could not only savor the exquisite pleasure Tsunade was delivering but also analyze his current predicament.
After a moment of rapid deduction, the pieces clicked into place.
Understanding the situation, Saiki's only coherent internal thought was a massive, resounding "Holy shit." He honestly didn't know if Tsunade would kill him if he revealed he was awake right now.
He knew that the overwhelming "perks" provided by Tsunade and Kushina in the hot spring had triggered a severe Qi Deviation, and that dual cultivation with a woman was required to stabilize his condition. What he hadn't expected was for Tsunade to step up and handle the "treatment" herself.
Saiki understood Tsunade's personality perfectly. Perhaps out of a sense of guilt for her own mistakes, she had offered herself to him. But that absolutely did not mean their relationship had fundamentally changed.
Most importantly, Tsunade currently looked as though she was thoroughly enjoying herself. Saiki was genuinely terrified she might kill him out of sheer embarrassment; after all, this entire debacle had started because she was trying to hide her own lustful reactions from that morning.
If he revealed that he knew she was actually enjoying it, her pride might shatter, leading to a violent, humiliated rampage.
While the threat of her rampaging was a brief concern, Saiki's thoughts rapidly pivoted to a much more pressing goal: how to permanently claim Tsunade as his own.
Saiki had never claimed to be a saint. He had always harbored desires for Tsunade. And it wasn't just her; Kushina, Tsume, and virtually every other woman he knew seemed to hold a certain appeal to him.
In the past, the pure, stabilizing nature of his Pre-natal Qi had kept his desires relatively dormant and his mind clear, preventing him from dwelling on such thoughts.
But now, having united with Tsunade, that singular breath of Pre-natal Qi had bifurcated into the dual energies of Yin and Yang. Having formally embarked on the path of dual cultivation, the various lustful desires buried deep within his mind had been violently amplified.
Tsunade was not a promiscuous or "loose" woman; if she were, Jiraiya's decades of relentless pursuit would have succeeded long ago.
However, not being promiscuous does not equate to lacking physical needs.
Under the current circumstances, as his Pre-natal Qi—now split into Yin and Yang—circulated between their bodies, Saiki could distinctly feel that it was massively amplifying Tsunade's own desires.
Before this, Saiki knew that making Tsunade his woman would be an incredibly difficult, almost impossible task. But now that they had crossed this ultimate line, his ambition to conquer her fully skyrocketed.
Keeping his body perfectly still and feigning unconsciousness, Saiki secretly intensified the circulation of the Yin and Yang Qi flowing between them.
"Ahhh!" Tsunade, who had her eyes closed in pure bliss, let out a sharp, unrestrained moan as Saiki manipulated the energy.
The accelerated circulation of the Yin and Yang Qi delivered an even more intense, electrifying stimulation. The overwhelming satisfaction fueled her hunger, making her crave more. Tsunade's pace atop Saiki grew increasingly frantic.
Pinned beneath her, Saiki couldn't hold back a muffled groan of his own. It wasn't just Tsunade; the scalp-tingling, mind-melting pleasure was mutual.
And so, with Tsunade entirely unaware, Saiki slowly and methodically stoked the fires of her lust, keeping his eyes shut as he savored the exquisite sensations she provided.
Tsunade, utterly consumed by her own desires, had absolutely no idea Saiki was awake. Initially, she had indeed approached this with a mindset of guilty sacrifice to save his life. But now, raw lust drove her to seek a deeper, more profound connection with him.
With his heightened perception, Saiki could feel every subtle shift in her movements. Drunk on pleasure, Tsunade grabbed his hands and pressed them firmly against her own soft, massive breasts. However, Saiki didn't dare to actively squeeze or knead them; although he was dying to do so, he knew the timing wasn't right yet.
Simply resting his hands there, as Tsunade used them to massage her own peaks, Saiki could deeply feel the incredible fullness, softness, and silken texture of the mature, fully-ripened woman.
Encouraged by Tsunade's passionate fervor, Saiki further intensified the Qi's stimulation within her. He was determined to mold her into a woman who would submit to his every demand—someone who yearned to be with him every single day.
In the past, Saiki would have never entertained such dominant, possessive thoughts. But his union with Tsunade was like shattering the lock on his deepest desires. Released like a ravenous beast, they could never be caged again.
Sure enough, under the relentless stimulation of Saiki's Qi, Tsunade grew even wetter and hotter.
Fueling his own arousal with his abilities, Saiki's already intimidating size grew even thicker and harder. The sharp, breathless cries of overwhelming pleasure escaping Tsunade's lips were proof enough of his effect on her.
Although Saiki was making her feel more fulfilled than ever, Tsunade was still unsatisfied. She grabbed his other hand, pressing it against her other breast, and began to twist and grind her hips with desperate, renewed vigor.
Sensing that Tsunade had completely surrendered to the abyss of her own lust, Saiki realized his own endurance was rapidly reaching its limit.
Tsunade was working hard, but lying passively beneath her simply wasn't satisfying enough for Saiki. He wanted to flip her over, pin her beneath him, press her knees to her chest, and brutally, thoroughly conquer her.
Thrusting his hips upward with sudden, explosive force, Tsunade's world spun before she even registered what was happening. She was flipped onto her back, and in the very next instant, Saiki was looming over her.
Stunned for a fraction of a second, she met Saiki's burning, predatory gaze. Before she could react, Saiki grabbed her two long, pale legs and folded them back against her chest. Only then did reality finally catch up to her.
"Saiki!" she cried out, instinctively trying to resist, only to realize her body was completely drained of strength.
Saiki's Qi was already flowing through her system; locking down her physical movements was effortless, even against a powerhouse like Tsunade.
Before she could even attempt to struggle, Saiki drove forward, breaching and filling her completely once more. "Ahhh!" Tsunade let out a sharp cry, a sound that blurred the line between intense pain and overwhelming pleasure.
Giving her no chance to speak, Saiki transformed into a relentless, unfeeling piledriver, his hips pumping like a piston.
"Nngh... ah... ah..." Tsunade tried to say something, but faced with Saiki's tidal wave of thrusts, her massive breasts bounced and swayed violently, slapping against her chest like crashing waves. She couldn't even manage to tell him to stop.
But Saiki wasn't just attacking her physically; he was assaulting her mind. The Yin and Yang Qi continuously cycled between them, delivering ever-increasing waves of electrifying stimulation and euphoria, systematically breaking down any remaining shreds of her resistance.
Faced with Tsunade's feeble attempts to push him away, Saiki could only smirk inwardly. "Your mouth says no, but your body is incredibly honest."
Tsunade was like a flooded well, and Saiki was the pump. With every deep, punishing thrust, the slick, wet squelch of excess moisture spilling over echoed through the room.
Under Saiki's ferocious assault, Tsunade quickly abandoned all resistance. Compared to her own pace when she was on top, Saiki's offense was infinitely more aggressive. Every strike hammered heavily against the deepest recesses of her womb. Combined with the constant, electrifying stimulation of his Qi, the overwhelming satisfaction left Tsunade dazed and delirious. Her mouth hung slightly open, her eyes rolling back in a daze; she looked as though she was on the verge of completely breaking.
Not only was Tsunade reaching her limit, but Saiki was as well; he was entirely overstimulated.
Lowering his head, Saiki captured Tsunade's soft lips in a deep, bruising kiss. Tsunade tried to refuse, but she lacked the strength to deny him.
With her knees pressed firmly against her chest, sucking fiercely on her lips, Saiki delivered a final, rapid barrage of thrusts before he could no longer hold back. He erupted deep inside her, as Tsunade's eyes rolled back in absolute, mind-shattering ecstasy.