Entering the small room, Tsunade began to shed her outer haori, hanging it carefully on the rack.
Once Saiki followed her inside, she closed the door with cautious, trembling hands.
Seeing Saiki just standing there, staring at her intensely, the courage she had managed to muster nearly collapsed into a mix of fury and mortification.
"What are you looking at? Time is critical! Get your clothes off!" Tsunade roared, attempting to transform her burning embarrassment into a shield of anger.
Despite his exhaustion, the sight of the flustered Tsunade acted like a tonic for Saiki's spirit.
He wasn't bothered by her scolding; instead, he nodded obediently with a dazed, "Oh, right, right."
Seeing his blank, almost stupid expression, Tsunade let out a sharp "Hmph" and brushed past him irritably to continue undressing at the rack.
Their previous two encounters had been initiated by Tsunade while Saiki was unconscious.
By the time he had woken up, she had already "exploited" him to her heart's content, leaving Saiki with a deep sense of missed opportunity.
But this time was different. Watching the legendary Sannin slowly peel away her defenses in front of his very eyes made Saiki's blood surge with a primal heat.
He could feel his heart hammering against his ribs, pumping scalding blood to every corner of his body, instantly vaporizing his fatigue and setting his soul on fire.
Tsunade's back was turned, but her sharpened shinobi senses told her exactly where Saiki's burning gaze was focused.
Unlike the previous times, she couldn't hide behind the excuse of his lack of awareness.
Saiki was behind her, watching her every move, and the realization filled her with a suffocating mix of tension and shame.
She felt her heart racing like a trapped bird. A deep crimson flush spread from her pale neck to the tips of her ears; her cheeks felt as if they were being scorched by an invisible flame.
The sheer humiliation made her want to punch a hole through the wall and flee, but the memory of the dying Kushina anchored her. She steeled her nerves and moved with clinical efficiency.
She unfastened the sash at her waist, sliding the loose, sleeveless top from her shoulders.
Reaching behind her back, she unhooked her bra with a sharp click, letting the silk restraint fall away before hanging it up.
Tsunade's figure was a masterwork of nature. From behind, her waist looked narrow enough to be held in two hands, her back was a flawless curve of pale, smooth skin.
Her twin snowy peaks were so gargantuan and heavy that Saiki could see the exaggerated, rounded outlines spilling out from her sides even from the rear.
She bent over, unbuckling her sandals. Her delicate, white feet, decorated with vibrant red nail polish, stepped onto the cool floor.
As her hands moved toward the waistband of her pants, she suddenly froze. She whipped her head around to glare at Saiki.
She had been ready to bark another order for him to hurry up and strip, but she stopped dead.
She didn't know when he had done it, but Saiki was already completely naked, standing there with his chest out and his head held high.
Saiki might be mesmerized by her beauty, but he hadn't forgotten the ticking clock on Kushina's life.
Since returning to the village, he had been wearing simple, loose casual wear. Taking it off had been the work of a single breath.
The moment Tsunade turned back, she was greeted by the sight of his massive manhood standing at a rigid, throbbing salute, pointing directly at her.
Tsunade's eyes nearly bulged out of her head, and she hurriedly jerked her gaze away.
She fought to stabilize her breathing and heartbeat, but biological reflexes were not so easily suppressed. She bit her lower lip, reminding herself that she was going to see everything anyway, so there was no point in acting like a maiden.
She gripped her waistband and bent over, sliding her pants down.
Saiki's pulse spiked again. He wanted to lunge forward and tackle her right then and there.
He wanted to whisper in her ear, "Sister Tsunade, do you have any idea how enticing you are? A move like that is a literal invitation to commit a crime!"
As she leaned forward, her slender waist dipped, and her massive, heavy breasts dangled like ripe fruit. Saiki couldn't see the front yet, but her voluptuous, upturned ass was on full display—a perfect, fleshy peach of a garden.
Unfortunately, Tsunade moved too quickly for a long look.
She kicked her pants and her tiny panties aside, letting out a breath of relief once the exposure was finalized. She draped the last of her clothes over the rack.
In the confined space of the dressing room, the atmosphere of raw, sexual tension had reached a boiling point.
It was a bizarre scene: two people who had already been intimate multiple times were acting as if this were their very first night, filled with a frantic, awkward electricity.
But it was understandable. In the past, Saiki had always been the "victim" of an unconscious encounter. This was their first time facing each other as two awake, consenting adults.
Tsunade raised her hands, instinctively moving to cover her chest, but she quickly abandoned the gesture. Coyness wasn't in her nature. Acting shy now would only make it feel more like a scandalous affair rather than a "medical procedure."
"It's all to save Kushina. It's just treatment," she lied to herself. The thought helped her relax slightly as she turned toward the small bed.
Despite this being their third time together, she was still clinging to her delusions. Saiki realized he still had a long way to go before he completely broke the shackles of her logic.
She sat on the edge of the mattress and lay back like a cold, emotionless mannequin. She looked like she was simply checking a task off a list.
"Come on," she said, her voice flat and mechanical. "Make it quick."
Watching her transition from bashful to detached, Saiki felt a wave of confusion.
The coldness in her amber eyes made his blood cool slightly. He walked over tentatively, looking at her beautiful, expressionless face.
He swallowed hard and whispered, "Sister Tsunade? Are you... alright?"
Tsunade met his gaze with a look of freezing indifference. "Kushina is waiting for you to save her. What are you doing? Stop being so indecisive."
During their first two times, Saiki had been out cold, so Tsunade could pretend she was just doing what was necessary.
Tonight, they were both fully conscious. Her final shred of pride forbade her from showing any pleasure. She feared that if she actually "participated," she would truly fall for him, and then there would be no turning back from their forbidden bond.
Kushina's condition was a heavy weight on Saiki's shoulders, and his own energy was dangerously low. Seeing Tsunade act so distant made him panic.
Obeying her command, Saiki sat on the edge of the bed.
He watched as Tsunade slowly lifted her plump, muscular, yet creamy-white legs, spreading them wide until she was lying in an open M-shape, exposing her most private depths to him.
"Start," the cold command slipped from her pink lips once more.
She looked like a block of ice, but with her legs spread and her shaved, glistening flower fully exposed to Saiki's gaze, her sense of shame was actually at a breaking point.
She could only repeat the mantra in her head: "It's nothing. It's for Kushina. It's just medicine."
Under the weight of her freezing tone, Saiki crawled onto the bed, kneeling between her thighs.
He was flustered and unsure, but Tsunade's beauty was a force of nature that overrode everything.
Even with her face a mask of indifference, the sight of her lying there, open and waiting for him, replaced his panic with a surging possessiveness.
Whatever her reasons, Saiki's heart told him he had to have her. She was simply... too beautiful to resist.