Lucille didn't know exactly when the sound of gunfire stopped and the hiss of the Tyranid creatures filled her ears instead - At one time she was shooting, and then she was not. Then she woke up in a soft, scratchy bed of fluff and twigs, raised on a plateau of assorted trash and refuse... In a few moments she recognized it as some sort of nest, like a bird's but stretching as far as she could see. Which wasn't far, to be fair - Pitch black, she could barely see more than a few inches away from her eyes... She pulled out an emergency light she kept in her coat, the long black Commissarial uniform now ragged and torn from the prolonged fighting. With a snap the chemical lux-sticks heated up and lit the room in dim, green light. She wished she hadn't a moment later.
	She was surrounded by the terrible creatures, a horde of man-sized, six-limbed lizards - Hormagaunts, she believed the Magos had called them - surrounding her. Hisses and growls erupt like a wave around her, the sudden light pushing them back as they assessed the situation. So many of them! The clean-up operations she had been assigned to had assumed that the planet was nearly won - And indeed, the multi-stage, saturated Promethium bombing had scoured the planet of most of it's life... But still, here she was, trapped in some underground warren with a nest of the foul creatures. 
	She wondered why she was alive. The tyranids she had fought so far had not taken prisoners of any sort, instead mauling and killing men, eating them alive while tearing the lifeblood out of them. The strategists had mentioned that, sometimes, the smaller 'bugs' would act erratically when not in the presence of their masters... And indeed, all Lucille could see around her was the "smaller" beasts, only the size of  a man, but still dwarfed by their monstrously large counterparts. She gasped as she finished her circle, as she realized why she was here.
	Not too far off, she spied another woman - Annette, she believed the woman was called... When their position had been swarmed suddenly, she had fled rather than fight. Lucille hadn't the chance to gun down the coward, but instead she must have run into the waiting claws of the monsters. Now, she was laid down on a pile not to similar to the one Lucille was on, covered in slime and mounted by one of the Tyrannic monsters! It hung over her, claws dug in over her shoulders as it slid in and out, fucking the poor girl hard before, with a twitch and a growl, it slammed it's hips deep into her and came - Obviously not for the first time this day, either, as Annette's belly was swollen with the beast's seed already. It slipped out, crawling away as Lucille caught the sight if it's thick, curved penis still firing it's slimy semen out over her body before sliding away into it's body. Another Gaunt took it's place nearly instantly, thrusting into Annete's nearly lifeless body before excitedly humping away into her. Her eyes looked dead, rolled into the side of her head, as her tongue hung limp ouside her lips, face covered in the filthy Xenos' slime, as she moaned out as if more distracted than in pleasure or pain. How long had she been here?
	Lucille had no more time for sight-seeing. The beasts were on top of her in an instant, as though they'd come to some accord without her consent, and the Commissar had but a moment to react before an oversized talon sliced down the back of her collar. It pulled away her jacket, lifting her to her knees while another set of talons scythed through her flak, shirt, and pants, leaving her defenseless and naked in moments. Yet another tyranid knocked her flat on her back with a head-butt,  coming in close like a lover as it hissed and spat in her face. She felt the creature's large manhood press against her pussy in a rage, slamming against it three times before brutally shoving itself into her, pressing it's weight into the woman's chest to keep her held down as it violated her.
	Despite her screaming, the vile creature continued to rape her, shoving it's warm, pulsating, and utterly alien penis as far as it would go before rearing out again. Her useless hands beat against it's shell, slamming against it fitfully in a vain attempt to push it aside, to stop it, but it came at her like a Rhino crashing through a barricade. As she fought, is clawed at her belly with tiny, feeler-like talons, while the larger scythes crushed down on both sides of her head for leverage into her pussy. 
	It seemed like forever, but it was only moments before the vain creature cried out and came, dumping a load of warm, slimy semen deep into Lucille's womb. She cried out as well, hers a wail of despair as she felt it finish, felt it slide out and crawl over her body - The last she saw of the Gaunt was of it slapping it's wet dick against her cheek, while another one took it's place between her legs and dug in itself. The furious woman tried to crawl away, vagina still sore from the last intrusion, but a ring of monsters surrounded her in every direction, each of them nursing a swollen, fearsome alien dick in her direction, just waiting for a chance to use it. 
	Reaching out turned to be a terrible idea - In trying to squirm her way free, one of her hands grasped out to one of those waiting dicks, and with a tight squeeze she found herself surrounded by waiting creatures - No longer willing to wait, it seemed, while she had so much more to offer! Tiny claws grasped her wrists and elbows, sometimes assisted by the larger, deadlier talons, and directed her hands to grasp for the alien pricks, and any attempt by her to pull away just had them tug harder, nearly tearing her fingers off in the process. All she had to do was grab - The needy aliens did everything else themselves, thrusting into her palms... And at least they weren't tearing at her any more. The Gaunt working her pussy thrust in hard once again, this time leaving his own seed behind, pulling across her shoulders this time - She felt his talons across her shoulders and instinctively cried out, only to have an Tyranid dick shoved into her mouth 
	Another monster moved into her pussy, slamming against her even as she felt the alien in her mouth beginning to thrust into her mouth, stuck between the two hungry dicks as they fucked her without mercy. The two Gaunts that she was giving a handjob tense and blow their own loads all over her chest, sticky slime covering her before they were replaced by more monsters waiting in the wings. Soon it wasn't enough for the mob - She felt dicks across her cheeks and neck, slapping against her breasts, her elbows, sliding around her legs while above her the grunts and hisses were replaced with bites and snarls. Their animal urges overcame any tenseness in being so close, however, and the various cocks all around the commissar continued their assault.
	Semen exploded into her mouth, choking her out, spilling from the sides of her lips as she gagged on the bitter liquid - It tasted something like bad shellfish, immediately causing her to spit it up before it was even done being pumped into her. She gasped for air in the moments before it was replaced by another, this one fucking her with just as much gusto as the last, sliding in and out of her mouth, down into the back of her throat as it fucked her face. The tip slid into her throat for just a moment, as the beast fucking her pussy pressed hard into her so it could blow it's own load - How many was that, she wondered, as it, too, was immediately replaced by yet another waiting dick. She felt slime spray across her body again, as her hands coated in semen were pulled to new cocks, as she felt another load being sprayed somewhere by her feet and her cheeks at the same time - Some of the creatures were a bit too eager, perhaps, coating her in layers of semen even while they waited for their turn.
	Lucille had lost count of how many of the Xenos she had been used by when something... new, happened. Her pussy, sore and used, was left empty for a time, as something slide around and about her... The dick in her mouth came again, this time forcing her to swallow the abysmal load as her over-stuffed cheeks had nowhere else to store it, and as it left she felt herself being raised up, warm, strong arms tightening around the back of her neck to lift her on top of something. It was another of the creatures, but she could still quickly recognize a difference - It was larger, somewhat, and had a raised horn on it's brow that made it distinct from the others. 
	It was no mercy that it held her for, however, as she felt the beast's cock press against her pussy. This was different, though, as this one's dick was far larger than the rest - Almost insanely so, and for the first time she felt herself needing to gurgle through the semen in her throat to protest - With a scream she felt it penetrating her, a steady, harsh fucking that split her open by the seams, fat dick rubbing against her well-used hole still filled with the semen of countless partners. There was a rustling of something coming up behind her: Without warning, another, similar cock pressed up agains her anus, and with a shrill cry it pressed into her - No, it was her scream, she realized, as she felt her raw ass being torn apart by the enormous cock, pressing up against it's equal currently stretching her vagina.
	The brutal fucking took only cursed seconds, as the twin cocks only bothered to press in - The one in her pussy found her womb, slamming against her cervix painfully while the penis exploring her asshole dug itself deep into her colon, embedding itself into the intestines as it crept along, forcing itself in to the hilt. Lucille screamed out as they stopped, grinding against her from both sides as she felt herself slammed between two hard carapaces, two dicks... And then, they twitched, horribly, filling up as they prepared to dump their vile load.
	The brutal cocks sprayed her womb and ass down with a tight spray of slick liquids, more like oil than semen, before Lucille realized that something else was being forced into her body. Tiny, soft balls were filling her up, and she saw her belly swelling from the pressure of their advance. Eggs, she thought, as she could do nothing about the brutal impregnation she was being subjected too. Some of the Tyranid sub-species came equipped with eggs in case of emergency, burrowing deep into the ground to deposit them... Apparently, these creatures had decided that they would rather have a warm, soft pussy to bury their ovipositers in, crushing her body in a wave of life that filled her to the brim. By the time she felt the large, monstrous membranes sliding out of her, she could barely breathe she felt so full - A bulge in her stomach told her everything she'd needed to know. She was seeded, and now she was pregnant, incredibly pregnant, with the baby of a Xenos predator...
	As soon as she was carefully lowered to the ground, the 'mothers' moved along - Perhaps to another captured woman? Or maybe they were just making room for the others - Just as before, a wave of monsters crashed into Lucille's body, pressing their cocks deep into her gaping pussy and her gasping lips, giving no respite to the commissar despite her being filled with their children. As for herself, Lucille hadn't the will to fight anymore - Her throat was sore and hoarse, with screaming and with the dicks forced into her mouth pressing against it, exhausted with the act of being fucked by an endless gang of beasts. The beasts came inside her and moved on, quickly replaced by another waiting monster, as the glo-sticks she'd prepared began to dim... Soon she was alone again, in the darkness, with a swarm of monsters and the sound of her own body being fucked...