"Bad little brother, what are you... going to do..."
Sayuri couldn't prevent Nanaya's movements, only watching helplessly as Nanaya liberated her.
Pulling down her bra exposing her full, pale breasts to the cool air.
Her pink nipples hardened immediately under his gaze.
Like mutton-fat white jade.
A rare treasure in this world.
"T-this can't be given to you!"
Sayuri crossed her arms over her chest, but the motion only pushed her breasts together, making the cleavage more pronounced.
Such a treasure appeared before Nanaya's eyes.
How could Sayuri not feel unbearably shy?
Yet the stingy Sayuri-neesan refused to share this treasure with her younger brother.
This made Nanaya somewhat displeased.
Nanaya grabbed her wrists and pinned them to the sofa.
"Little brother, please don't do this..."
"...This treasure can't be given to you!"
Nanaya didn't speak, instead observing the bountiful fruit of the treasure once more.
He was feeling rather thirsty.
"Why not? They're right here in front of me."
He lowered his head and took a stiff nipple between his lips, swirling his tongue around the areola.
Soon after, the "slurping" sound of sucking could be heard.
"Ah!... eek..."
Sayuri arched her back as wet heat enveloped her sensitive flesh.
The familiar sensation assaulted Sayuri again, rendering her speechless as she watched Nanaya show such devotion to the treasure.
She could feel his teeth grazing lightly, his tongue pressing insistently against her peak.
A maternal feeling welled up within her.
Along with it came a peculiar curiosity.
"Little brother... is the treasure really that... precious (delicious)?"
Sayuri asked softly.
Nanaya switched to her other breast, sucking hard enough to leave a mark
"Mn, of course it's precious."
He pinched the wet nipple he'd just abandoned between his fingers, rolling it roughly.
"You taste sweet, neesan."
Hearing Nanaya's matter-of-fact reply, Sayuri felt extremely happy.
After all, since the treasure had been discovered, wasn't it only right to have her little brother help appraise it?
"Before I could only clean the treasure by myself, it was so tiring, so I was a bit resistant and often let dust gather on it..."
"Why not have Eriri help?"
Nanaya continued carefully observing while cleaning.
"Ah... bad little brother... no one else knows about this except you..."
As she spoke, Sayuri seemed to realize something and quickly shut her mouth.
But the information she'd inadvertently revealed gave Nanaya some ideas.
Though now wasn't the time to discuss this.
"Sayuri-neesan, would you like to try appreciating the treasure's beauty up close?"
Nanaya had pushed her kimino up around her waist. Her soaked pussy lips glistening.
"You've been cleaning yourself here too, right?"
He put a finger around the waist.
"Let me help."
"Eh?"
Sayuri clearly understood Nanaya's intentions and immediately refused, but lying weak on the sofa, how convincing could her current appearance be?
Nanaya had excellent lung capacity and took a deep breath.
It would be such a shame if the treasure's owner didn't understand its value.
"Sayuri-neesan," he murmured against her inner thigh, "you should appreciate your own treasure too."
Before she could respond, his tongue swiped up her entire length from entrance to clit.
"...No, we can't do this, such things are forbidden."
"Mm... Sayuri-neesan, you just need to open your mouth in surprise, that's all. This isn't anything improper!"
F-fuck!" Her hips jerked off the couch.
Nanaya held her down with an arm across her stomach while his mouth worked her over.
He circled her swollen clit with the tip of his tongue before sucking it harshly between his lips.
Nanaya pulled back just enough to speak, his chin glistening with her juices.
"Open your mouth, neesan."
When she hesitated, he pressed down hard on her g-spot.
"Ah! Okay!" Her lips parted automatically.
He kissed her deeply, letting her taste herself on his tongue. Sayuri moaned into his mouth, her hands tangling in his hair.
When they broke apart, both were panting.
[First Kiss Reward: Fujoshi Power (Obtained)]
"Mm... bad little brother..."
"Sayuri-neesan, you got to see the treasure and enjoy my massage, but what about me..."
Nanaya spoke heatedly to Sayuri.
"..."
Nanaya stood abruptly, shoving his pants down.
His thick cock sprang free, already leaking pre-cum.
Sayuri's eyes widened at the sight.
Though it wasn't Sayuri's first time seeing it, this was her first such close encounter.
"Sayuri-neesan wouldn't be lying to me, would you..."
"Of course not..."
"You... you do it yourself... but go slowly..."
Sayuri looked at the Nanaya before her - little Nanaya.
"But... you can't go in here... understand?!"
Sayuri's voice was stern.
Sayuri wasn't some naive teenage girl anymore.
Even if her heart was pounding, she had to maintain a calm expression.
"Mn, I understand!"
"Good boy~"
Nanaya stroked himself slowly, his other hand playing with her clit. "Like this?"
He swiped his thumb through her folds, collecting moisture to slick his movements.
Sayuri didn't know how Adam and Eve had felt, but Sayuri now understood the serpent's temptation in the myth when it urged Eve to eat the apple.
If not for making Eve eat the fruit of knowledge,
The vermilion fruit probably wouldn't have remained intact.
With each of Nanaya's movements, Sayuri's body twitched in response.
"Y-yes... oh god..."
Sayuri bit her lip as she watched his hand glide up and down his shaft, the head flushed dark red. Without thinking, she reached out and wrapped her fingers around the base.
"Let me... help."
Nanaya groaned as her soft hand joined his.
"Faster," he urged, thrusting into their combined grip.
Sayuri marveled at how hot and heavy he felt, the veins pulsing under her fingers.
When his breathing grew ragged, Nanaya pushed her back against the cushions.
"Open," he commanded, and this time she understood.
Her pink tongue darted out just as the first spurt hit her chin.
She really...
Nanaya loved her so much...
Previously Nanaya had wanted to do this with Eriri too, but Eriri...
Which led to Eriri slapping Nanaya several times as punishment.
Now, the adult version of Eriri - Sayuri-neesan - could accommodate him perfectly.
And... the lubricating juices were very nourishing.
When the fluids had hit her hand earlier, she'd only felt there were many, without comprehending the volume. Now she understood.
The stimulation rushed to her brain.
Making her heart tremble.
"Sayuri-neesan, can you still walk?"
"No..."
"Then let me help clean you up."
Nanaya busied himself attending to Sayuri.
Sayuri felt a comforting warmth in her heart.
Until she heard Nanaya mention the sofa cover was completely soaked through, filling her with shame and indignation!
Nanaya's quality of keeping his promises greatly satisfied Sayuri, so she taught him an extraordinary lesson about physiological structures and health safety.
Nanaya carried Sayuri princess-style into the bathroom.
Following her instructions, he sat below while Sayuri personally demonstrated, unfolding the anatomical chart before Nanaya's eyes.
As the sole student, Nanaya proved exceptionally studious.
And though Sayuri occasionally seemed distracted, overall she performed her teaching duties quite commendably.
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