Silence descended once again upon the Sisters. The joy Sila felt at discovering her lost Sisters still alive was drowned out quickly by the memory of the psyker's sacrifice. If she had only listened to him, they would all be alive. He was the only one who had ever spoken against her command, only to die for her incompetence. She fought back tears, careful to not let Clara hear any weakness in her voice.
"Do you know what is going on? Have you seen anything?"
"Nothing but what you see now. I tried to free myself, but this...thing is holding on rather tightly."
Escape seemed impossible. All that was left was to wait. Sila had heard nothing of Tyranids ever taking prisoners, so this was entirely new to her. She was not even certain that they understood the concept of prisoners, though she had no other hypothesis as to why she was still alive. If anything, the prospect of being taken alive by an allegedly mindless horde was far more unsettling than her imminent death.
Time dragged on as Sila fought to stay awake in the cloying warmth of the living chamber. It had been so long since she had last fully removed her power armor that she had nearly forgotten what air felt like against her bare skin. She definitely did not remember her skin being so sensitive. She felt every pulse of her fleshy restraints and every rolling bead of sweat in fine detail, surprised to find her breath growing short as a drop perched upon her stiffening nipple.
She had little time to ponder the situation, her musings interrupted by a soft cry from left. The Superior called out softly to Atella, careful not to rouse the sleeping Sisters. She gave no response, just a series of silent coos similar to the first. In the near-total darkness, Sila could barely make out movement around the veteran Sister, the slow crawl of slithering flesh covering her lower body and slowly working its way up. Atella's cries grew more frequent and deeper until there was no question what was happening. She was being violated. The pulsing flesh stopped after it had reached her breasts, heaving in time with the sister's involuntary movement. Sila watched in stunned silence as her trusted subordinate squirmed and writhed, her moaning deafening in the silent cavern. She fought to look away but found herself transfixed, her body growing steadily hotter as her squad mate cried in rapture.
Sila shook her head, hoping to purge the unwelcome thoughts floating through her slowing mind. This wasn't her. There must be something in the air, or some poison seeping from the flesh that bound her. She was a fearless soldier of the God Emperor, not some sex-crazed cultist. Her breathing slowed and focus sharpened, years of training kicking in to insulate her mind from her growing arousal. It was becoming difficult to think, but she had no use for thoughts if she had her faith and her training. The comfortable fog settling over her mind was only a minor inconvenience. She needed to resist, for herself, her squad, and her Emperor.
Mae began to sigh in pleasure on her other side, clearly losing her own battle. Seconds later, the rest of the squad joined the chorus, filling the room with ecstatic moaning and the soft, wet sounds of penetration. Sila fought to contain her own voice, her lust mounting despite the lack of stimulation and her attempts to ignore the pulsing heat burning her skin. Her confidence faltered when she caught her thighs rubbing together, straining desperately against her living bonds to grant some relief from the stifling arousal.
She was at the end of her rope and knew it. Whatever toxin now flowed through her blood allowed no resistance. She couldn't maintain a coherent thought for longer than a few seconds and had no control over her twitching body. Her eyes stared forward without focus, useless in the dark. Her ears, however, felt more sensitive than ever, picking up every sigh and every gasp from the women around her. With the sounds of her defeated Sisters echoing in her mind, her feeble resistance finally faltered.
Sila gasped as some unknown appendage prodded her engorged and dripping slit. Its taper pressed gently against her sensitive folds at it split her open, spreading her walls as it inched inside. The length dripped with its own lubrication, sliding almost effortlessly into her sodden quim. It grew wider with every passing inch, stealing her breath as she was stretched far past her normal limits and with no end in sight.
At the same time, a myriad of thin tentacles slid slowly up her body, tickling her skin as she pushed her body into their touch. A small part of her mind screamed against her now-willing submission but was quickly silenced as the slimy appendages poked and prodded her sensitive breasts. The tentacles covered her entire body, teasing her with their light touches and whispered promises of more to come. One even dug into her naval, penetrating an erogenous zone she didn't even know she had.
The enormous protuberance that filled her cunt began to slowly twist and writhe, flailing mindlessly as if desperate to escape her scalding embrace. Less than a second later, Sila's body exploded in orgasm. Her knees shook as her body convulsed, her own screams only distantly acknowledged by her overwhelmed mind. The tentacle continued to thrash inside her, fighting against the rhythmic contractions of her over-filled sex. She writhed and screamed until out of breath, only then falling limp as aftershocks tore through her weakened body.
Her sudden climax brought with it a moment of clarity in which Sila fought against her growing exhaustion and lustful haze to take stock of the situation. She was truly helpless. She had lost once already to overwhelming pleasure and knew that it would happen again. Any resistance would be smoothed away with aphrodisiacs until she was begging to be filled. The afterglow of her heart-stopping orgasm faded quickly, chased out by despair. The tentacle inside her had stopped some time ago, as if tormenting her with the knowledge that she would soon be begging for it to continue.
The Sister Superior ground her hips shamelessly against her tentacled lover, seeking escape from her guilt just as much as carnal pleasure. All around her, the other Sisters writhed and shook as orgasm after orgasm robbed them of thought and resistance, blessedly oblivious of their situation. She silently begged to join them, to cast her shame into a dark corner of her mind and to lose herself in the mindless pleasure the mysterious Tyranid beast so freely provided.
As if in response to her voiceless pleas, Sila felt a foreign presence press against her lips. She opened her mouth to the strange appendage, every speck of resistance long drained from her exhausted body. The well-lubricated tentacle slid into her mouth before pushing its way down her throat, unimpeded by her involuntary gagging and choking. She could feel her throat bulge as the intruder dove deeper, its progress clearly visible as her neck distended to accept its girth.
Despite the slimy obstruction, her breath came normally, albeit rapidly as fear and arousal vied for control of her overwhelmed mind. The air felt different somehow, thicker and warmer than it should have been, yet somehow reassuring. Her gagging ceased almost immediately, the burning nerves of her throat falling silent and leaving only a vague impression of fullness. Each breath further calmed her racing mind, slowing her thoughts to a crawl as rapidly building lust banished her guilt and shame. Whatever strange toxin filled the air and ignited her arousal was now being pumped directly into her lungs.
Sila breathed deeper and faster, nearly hyperventilating as she gulped down breath after breath of the potent aphrodisiac. The sensual heat she so craved returned in force, the concentrated poison pushing her arousal well past ordinary human limitations. Within seconds, her body teetered on the edge of orgasm, her over-filled sex leaking a steady stream of mixed lubricants as her inner walls contracted of their own accord. Despite her arousal, the biomorph showed no signs of granting her release, its myriad tentacles unmoving, waiting for some unknown signal to resume their relentless stimulation of her achingly sensitive body.
Instead, Sila was finding it more and more difficult to breathe until the steady supply of air coming from the Tyranid creature stopped completely. Her body seized briefly in panic until the concentrated aphrodisiacs coursing through her blood suppressed the burning pain in her lungs. Her skin grew hotter as she fought for breath, instinct clashing with her chemical stupor. The moment her vision started to darken, the tentacles that covered and filled her body began to move.
Unable to so much as whimper, the Sister Superior could do little but shake and thrash as her body was overwhelmed by sensation. Her oxygen-deprived mind reeled, unable to fully process the violent stimulation. Her head grew light as her entire existence reduced to the coursing pleasure bursting forth from her convulsing pussy, the rest of her body numbing as her consciousness faded. As blackness filled her vision, climax gripped her body.
Her muscles burned, oxygen-deprived yet straining to the point of pain against her living restraints, her broken ribs making themselves known for the first time since her violation began. On the brink of wakefulness, she felt every fine detail of the smooth appendage vibrating inside her quivering sex. After a final, desperate gasp, air once again flooded her burning lungs. Air was the least of Sila's concerns, however, as another shot of extra-concentrated aphrodisiac seeped into her blood.