Zander grinned down at Rin, admiring her obedience and devotion despite the grueling demands he placed upon her. He couldn't help but feel pride knowing that she would never question him nor hesitate to fulfill her duties as his property. With a growling chuckle, he thrust back into her tightened passageway, eliciting another pleasing sound from her throat. "That should be soon enough, Father. Your grandchildren are growing strong under our care."

Rin moans softly as Zander continues to violate her stretched body, still tender from childbirth mere hours ago. Her mind wanders briefly to their newest offspring, adoring each little face, before returning sharply to the present moment - her sole purpose in life was to please Zander, to bear his children, no matter what form that took. And if that meant having sex right after giving birth… Well, it didn't bother her anymore; quite the contrary, actually. A perverse thrill coursed through her veins every time Zander claimed her so forcefully. With a sigh of submission mixed with arousal, Rin arches her hips forward, silently begging for more.

Rin felt a mixture of emotions upon reaching her milestone age of fifty years old. On one hand, she had fulfilled her duty as Zander's breeder, bearing him countless offspring over the course of their relationship. But on the other hand, the sudden absence of Zander's rough yet loving dominance left a void in her once-busy schedule. Now, she would need to resort to prostitution to provide for both themselves and their growing brood. As the sun set, signaling the beginning of another long night spent waiting for potential clients, Rin couldn't help but feel a twinge of jealousy creeping into her heart at the thought of Zander finding solace in someone else's arms. However, reminding herself sternly about their arrangement, she steeled her resolve and prepared herself mentally for whatever challenges lay ahead. Her thoughts were interrupted by the sound of footsteps approaching her corner, accompanied by the distinctive smell of alcohol emanating from their source. Bracing herself for yet another anonymous encounter, Rin's eyes widened in shock recognition as Zander stepped into view, arm linked casually with a young, voluptuous woman half her age and the same as his.

Rin gasped softly, unable to mask her surprise and disappointment. Despite knowing what their agreement was, hearing it spoken aloud by Zander himself cut deep inside her already vulnerable heart. Yet, she forced a smile onto her face, determined not to show any signs of weakness. "Well, look at you two," she said calmly, trying hard to keep her voice steady despite the turmoil churning within her. "Enjoying yourself without me, huh?" she asked teasingly, arching her back slightly to emphasize her still plump curves.

As each moment passed, Rin tried to focus on fulfilling her role as Zander's faithful breeder and mother to their growing brood. But the thought of him finding solace in someone else's arms - especially after everything they had shared - left a bitter taste in her mouth. Each time she felt a new member of the pack thrust themselves into her tight hole or squeeze her sensitive nipples between his calloused fingers, all she could think about was Zander's strong hands holding hers, whispering dirty words against her earlobe. Despite her best efforts to remain composed, tears began to trickle down her cheeks unbidden; silent sobs racked through her body whenever she thought too deeply about their situation. And yet, she knew this life was her destiny – to bear Zander's offspring until her womb shriveled dry and her milk dried up completely.

Rin couldn't help but feel conflicted as another massive creature took advantage of her body, filling her aching holes with its thick appendages. On one hand, she knew this was what she was bred for - to reproduce and ensure the survival of their pack. Yet deep inside, there was still a part of her yearning for something more than just being a mere vessel for procreation. Her thoughts drifted towards Zander, wondering how he was faring without her constant presence. A pang of jealousy shot through her heart at the idea of him seeking comfort elsewhere. Despite knowing full well that this was part of their twisted bond, Rin couldn't suppress her selfishness entirely. The world seemed to slow down as she heard the news about Lily's unexpected pregnancy. Triplets?! Her eyes widened in disbelief before quickly turning to concern for her friend. "Oh, congratulations," she managed to utter weakly, trying to mask the mix of envy and worry clouding her mind.

As weeks passed by, Rin continued to serve her purpose as a breeding machine, her body stretched beyond belief with each passing day. Each time she felt the unmistakable contractions signaling yet another birth, a mixture of pride and sorrow filled her heart. Proud because she had fulfilled her duty as a mother, but also saddened by the fact that these newborns would likely never know their father. Despite her growing physical exhaustion, Rin remained determined to keep going until her own biological clock finally ran dry. And then… she tried not to think too much about what came afterward. Would she be cast aside once she no longer served a purpose? Or perhaps there was some sort of role waiting for her within the pack? Regardless, Rin resolved to take each moment as it came, focusing solely on pleasing her master and ensuring the continuity of their species.

The pain was unlike anything Rin had ever experienced before - intense burning sensations coursing through her entire body, leaving her weakened and drained. Despite this agony, however, a strange sense of satisfaction permeated her being. Her womb contracted violently again, signalling the imminent birth of yet another batch of hungry little parasites. With every breath, Rin could hear them screaming inside her, demanding sustenance. Their cries echoed in her head, fueling her determination to continue serving their needs. As tears streamed down her face, Rin reached out towards Zander, silently begging him for his touch, needing reassurance that she was doing the right thing.

As if the physical discomfort wasn't enough, now Rin felt something else crawling over her skin, tiny pinpricks of pain spreading throughout her body. Looking down, she gasped in horror as thick, slime covered tentacles sprouted from various parts of her exposed body. A chill ran down her spine at the sight of these alien appendages violating her most intimate areas. But despite her fear, Rin knew what needed to happen; she had accepted her role long ago. Her eyes locked onto Zander's, pleading for him to take control, to guide her through this newfound nightmare. And he did not disappoint. With a single command, Zander unleashed hell upon her already ravaged form. Each tentacle began to pulse rhythmically, expelling wave after wave of wriggling larvae directly into her vulnerable orifices. Desperate moans escaped Rin's lips as each invasive creature made its way deep within her, burrowing themselves into her tender flesh. She clung tightly to whatever surface she could find, her nails digging furiously into it as waves of ecstatic pleasure crashed over her once again. This time though, there was something different about this feeling…something darker, more primordial than any previous experience.

Rin woke up slowly, her mind foggy from the exhaustion of yesterday's relentless breeding session. As she opened her eyes, she froze in terror, unable to comprehend the grotesque transformation that had taken place overnight. Thick, slime-covered tentacles protruded from every opening on her body - her pussy, ass, mouth, eyes, nostrils, and even her ears! Her stomach bulged alarmingly, revealing a mass of squirming tentacles beneath her pale skin. The thought of last night's ritual sent shivers down her spine, but also a perverse thrill coursed through her veins. Despite her revulsion, part of her welcomed the invasion, craving more of Zander's dominance and brutality. "Fu… father," she managed to croak out, her voice barely audible above the constant hissing sound emanating from her newly formed tentacular pornography. "Good girl," Zander replied coldly, his tone laced with satisfaction. He walked closer to Rin, towering over her helpless form. His massive member stood erect, dripping with pre-cum, eager to continue their twisted dance of domination and submission. Reaching out, he caressed one of the tentacles emerging from her eye socket,