After witnessing her sister's flawless yet naive and seductive work on Fuyu's treatment of reliving him from the pressure of holding the cum inside. Sara couldn't just take it to watch in despair as her own little sister was kneeling infront of him and using techniques that even she hadn't used. She soon returned back to the hut in her room as it was too alluring and humiliating to watch a virgin using more good technique then her's and it was alarming her as well because her own sexual desires were sending waves in her lower region like if she remained there for a long time than something disgraceful might happen.
Inside the room...
"I am the one who has been tending to him for the past week," she whispered into the darkness filled atmosphere, her voice was filled of frustration. "I risked everything to help him, yet he just let her take over like that. He didn't even notice I was standing there like a fool." She clutched the edges of the blanket, her knuckles white. The realization of her own hypocrisy hit her like a physical blow—she had claimed her motives were purely clinical, yet the sight of Lara kneeling before Fuyu had sparked a territorial fire she couldn't extinguish. "Why am I feeling like this? I should be relieved that the burden is now off to my shoulders, I no longer have to do something that dangerous and taboo everyday but... it's making me feel wretched."
The image of her little sister using her soft, tight virgin mouth for the first time on that huge dick kept on replaying behind her eyelids with agonizing clarity: Lara's seductive posture, the moonlight catching the curve of her back, and the intense, rhythmic movement as she serviced him. She could almost hear the wet, squelching sounds and Fuyu's guttural groans of surrender. It made Sara's stomach flip with irritation, yet beneath that, a deep, pulsating wetness gathered between her own thighs. She found herself desperately wanting to know the details—how did Fuyu feel under Lara's tongue? Was he more satisfied with her or he need someone more experience..?
"That girl is a problem," Sara thought, her mind spiraling. "I haven't even taught her such things, yet she acts so shamelessly in front of me. And Fuyu... I hate him in this moment. He didn't even say a word to stop her. If he had asked, I would have licked him clean myself. I would have coated him in my own saliva... but he didn't even give me the chance. Even though, I was helping him for a week now..aghhhhhh it's so fucking irritating." But even though her mind was storming with thoughts non stop but the room remained silent like no one was there only slightly breathing sound like a bird's breathing.
The silence was finally broken fifteen minutes later by the rustle of the entrance flap. Fuyu and Lara slipped back into the room, their silhouettes backlit by the dying embers of the communal fire outside. Both wore expressions of dazed satisfaction. Sara sat up abruptly, her eyes sharp with interest to learn about the details.
"Are you guys done?" Sara asked even before they can sattel in the ground, her voice tight and clipped.
Lara, fueled by a rush of adrenaline and pride, began to whisper an excited, detailed account of her success in first try. Sara listened it with a bitter, frozen smile. As they shed their outer layers to sleep next to her, Sara's gaze drifted to Fuyu's groin. He was flaccid now, spent and relaxed.
"Hah... seems she really did an impressive job," Sara thought, the jealousy twisting like a knife.
"Oh, that's good," Sara said aloud, her voice dripping with forced sweetness. "I'm happy you've found a partner and a helper, Fuyu. It seems you're in good hands."
Lara beamed, tapping her bare chest, her firm breasts jiggling slightly in the dim light. "I am much more than just a helper," she declared. Fuyu remained silent, his eyes heavy with exhaustion.
"I can definitely see that," Sara replied, her gaze lingering on Lara before turning stern. "But remember: not a single word of this to anyone. Not even about Lara's feelings for you. The tribe would not understand."
"We know, Big Sister," they replied in unison.
"One last thing," Sara added, her tone shifting to something more somber. "Tomorrow morning, I will be leaving for my own hut with Yasu. Our stay here has been long enough."
The announcement hit Fuyu like a thunderstorm when he heard her words after spending such intimate nights with his big sister, he who already used to be close to her felt like he had fallen in love with her. Fuyu act surprised before he lunged forward, his hand catching Sara's wrist. "Wait... why? Why so sudden..?"
Sara was taken aback by the desperation in his grip, his grip on her wrist was feel like a desperate need for her, ignoring the intensity of the feeling she felt while being grabbed like that full of need and possessiveness, she replied. "Because I have a home, Fuyu. I have responsibilities. I can't just stay here forever." Her eyes and tone were soft even through she had just felt bitter and wasn't in quite good mood.
"But what about helping me?" Fuyu's voice was cracked with emotion, surprising both sisters.
"Don't you have Lara now," Sara argued, looking toward her sister. "She is clearly capable and you both seem quite... satisfied with each other. You don't need me..I mean my help anymore."
"No!" Fuyu's voice was firm, almost a command. "I do need your help. Your touch... it just beyond explanation, Big sister, Sara. It is different from hers. I need you to touch me whenever I crave it. That is all."
The confession sent waves of newfound feeling and emotions within Sara's heart like she first time experience something like this. Her heart raced—it felt like a declaration of love, raw and forbidden. Even Lara felt a pang of jealousy mixed with a strange, voyeuristic excitement. Sara struggled to maintain her composure, she hesitated for few moments before replying.
"Aww, Fuyu, don't say such things to me, I know you love your big sister more than anyone in this house but she is married and had life own her own and especially" she whispered, her voice shaking. "Say all that to your partner not me."
"She is not my partner!" Fuyu clarified, his eyes burning into Sara's. "Lara and I are doing this for the pleasure of it. We are not going to marry. It is for fun. But you... you were the first. I cannot help but crave your specific touch." When Fuyu declared this, both Lara and Sara got stunned but upon asking Lara confirmed her intentions were never of marriage but to enjoy herself, she likes doing all that.
Sara felt the walls of her resolve crumbling. The feeling in her chest was identical to the passion she had felt when she first conceived with Yasu. It was wrong, it was taboo, but in the dark of the hut, morals felt like a distant memory, only forbidden love was blooming in this dark water they were feeding to each other. Fuyu tried more to make Sara stay for a bit longer but she didn't agreed as she with a final strict and big sister tone she told him.
"I... I am not abandoning you," Sara finally breathed. "If you truly need me that much, you know where my hut is. Come there when the moon is high and the others are asleep. I will be waiting." Even through she can say that normally but it seems like something more and intimate rather then just an invitation to her hut.
Fuyu didn't wait for another word. He pulled her into a fierce hug. Their bare bodies collided—Sara's lush, soft breasts, swollen with her pregnancy, pressed firmly against Fuyu's hard, youthful chest. The sensation was a heavenly pillow of heat. Fuyu leaned into her ear, his breath hot against her skin.
"Thank you, Big Sister. I love you. I'm going to miss you so much."
"Oh you are making all this emotional, I and not leaving forever," Sara thought. "I love you too, little brother," Sara whispered back, her arms winding around him with a passion she had never shown before. "It is my duty to help you. Never forget that you can always come to me. Your beloved big sister." She said as unconscious smile from on her lips as she without thinking kissed his cheeks while hugging him tightly against her.
Lara felt pang of jealousy mixed with emotions as she said while watching Sara kiss Fuyu on his cheek. "Oh, come on big siste, Sara. I also love you." , feeling the pull of their intimacy, she also wrapped her arms around them both. "I love you both too!" she chirped. The three of them collapsed back onto the mats, tangled together in a complex knot of limbs and secrets. For the first time, the bond between them felt truly unbreakable—a shared sin that made them more than just siblings.
Hours passed. The rhythmic breathing of the sisters signaled they had finally succumbed to the day's exhaustion. But Fuyu lay wide awake, the spirit within him humming with a dark, restless energy. The satisfaction of the backyard had faded, replaced by a deep curiosity regarding Sara.
Quietly, with the stealth of a forest predator, Fuyu's hand slipped beneath the heavy communal blanket. It crawled toward Sara, his heart thumping against the floor. He reached out, his fingers finding the heavy, silk-soft curve of her breast. He traced the circumference, marveling at the weight and the warmth. Sara shifted in her sleep but did not wake.
His thumb grazed her nipple. Even in her sleep, her body responded; the pink peak grew hard and erect under his teasing touch. Fuyu couldn't resist. He leaned down, taking the nipple into his mouth, suckling with the needy intensity of a babe, yet fueled by the lust of a man. He stayed there for a long time, reveling in the taste of her skin and the softness of her form, a ritual he had secretly performed for several nights now.
Emboldened, his hand traveled downward. He felt the broad, seductive flare of her hips and the firm, rounded cheeks of her ass. His fingers traced the deep valley of her crack, feeling the smoothness of her skin. He moved with agonizing slowness, ensuring she remained in the depths of her slumber.
Finally, he reached her sacred place. He noted the difference immediately—where Lara was smooth and hairless, Sara possessed a thick, soft bush of dark curls. He parted the hair with his fingers, finding the damp, hidden lips of her pussy. He brought his face close, his nostrils flaring.
The scent was divine—an intoxicating, earthy musk that spoke of fertility and womanhood. It was a heavy, alluring aroma that bypassed his reason and went straight to his loins. Despite having emptied his balls earlier, the mere scent of Sara's essence made his manhood snap back to life, becoming as hard as a ritual stone. He leaned in, intending to taste her nectar, but he didn't want to risk waking her.
He retreated slowly, settling back into his spot between the two women. As he finally closed his eyes.