Dr. Sarah Byrne heads to Chronus station.

Sarah was ecstatic. Finally getting the recognition she deserved for her research into xeno-synthetic linguistics and her leadership in wrangling the cats that were Dr. Eric Ernst and Dr. John Casper, an expert in organic synthetic hybridization and a leading theorist of multiversal reality tunneling respectively. Both men seemed deeply misogynistic and spiteful that she was placed above them. It really wasn't her fault she was pushed to lead their little cabal of cells.

Collectively their cells were known as the IBEX unit, an earth species that was either extinct as of 150 years ago or so critically endangered they might as well be. Other cells however had a less than flattering nickname for them, the hail mary cells. None of the projects seemed feasible and apparently until recently The Illusive Man agreed. Their cells were unified and provided minimal funding for the research of even a single unit, let alone 3! Most of her time since graduation had been delegating her own workload to her small team of linguists and then playing mother hen and balancing budget allocations.

That would all be behind Sarah now, as The Illusive Man had authorized TRIPLE the Budget of even normal cells for each IBEX unit. She could now get back to work doing what she was meant to do, help humanity reach its next great step. After the Reaper threat was confirmed 4 years ago by The Battle of the Citadel, Sarah joined Cerberus to put her research into linguistics and xeno-communication to work and hopefully make a sort of peace with these creatures.

However the budget was always a problem. So her aide, Dr. Vincent Ying took charge of actual research. Vince seemed like an alright guy, a bit short with his answers and rather frequent trips to certain extranet sites involving asari maidens with ball gags and krogan with whips, but free time was free time and his proclivities were none of her business.

Sarah Byrne longed to get back into the project, and wanted to read what her aide had thrown together as an action plan towards this peace treaty but was so excited by her imminent meeting with The Illusive Man that she forgot to save a copy before sending it off to him to read over. Oh well, better for OPSEC she does not have it in case of capture or something.

Sarah could barely contain her excited urge to bounce in her seat like a child upon exiting FTL and laying eyes upon the mighty Chronus station for the first time. A feeling of growing nerves was the only thing holding back that reaction. What if the plan was weak, what if the data was wrong, what if what if what if. A thousand doubts began to plague her as she grabbed her duffle and stepped foot off the shuttle when it landed.

Upon completing decontamination, a far more thorough and intimate procedure on Chronus station, apparently as Sarah had been forced to be nude and she swore one of the chamber workers was sneaking pictures, she was led into a lab and manufacturing facility. It seemed Dr. Ying had compiled the Reaper data into some sort of visor system. 'Seems far more comfortable than a dragon's tooth.' she thought 'Although the head bands don't seem large enough for male headware, especially turian or krogan... maybe they are just super stretchy.'

She continued her tour guided by an attractive looking security fellow who ran her through all the hab zones of the station. Finally she was led to a room that she was told led to a quantum communicator. The Illusive Man wanted to brief her on her new duties and equipment personally.

She stepped through into the room and saw a singular spot on the center of the floor illuminated, assuming this to be the holo projector she stepped forward and waited. After a brief scan robotic arms shot from the darkness and restrained her. A squeal and a rising sense of panic filled her as a series of skin safe lasers descended upon her, disintegrating her clothing leaving her nude and frightened. A low whir caused her to look up and in panic she noticed one of the head gear pieces descending towards her face, arms then moved in and locked her head in place as the new tech was installed covering her eyes and most of her nose. It was then strapped like a VR headset around her head and began to play strange patterns and noises.

In an instant the entirety of the proposed plan by Dr. Ying flooded her mind. A series of equipment and augmentations for female subjects that would leave them little more than mindless, obidient, over sexualized, and hyper sensetive fuck dolls. Throat sensitivity modifications, breast and buttocks enhancement, digestion system overhauls, mental conditioning, moisture wicking hyper sexualized clothing, even reproductive system modification to allow for the activation and deactivation of ovaries to turn these living sextoys into walking fuckable wombs. The Illusive Man decided she would be the first subject.

She screamed in terror and pain as the headset seared itself into place on her head, now an irremovable part of her. The robotic arms then injected her with something, a paralytic if the growing numbness everywhere was to be trusted. The screen then began to show her different images, ones generated not from existing pictures but her own memories. An image of her working and researching in school was met with electrocution, while an image of her from a party grinding her naked body on an ex-boyfriend was met with a pleasant buzz.

Over the course of an hour she was horrified to realize every memory she was zapped for she couldn't remember afterward. She was slowly forgetting her schooling, her family, friends, and even how to be a normal person. The only memories left were admittedly drunken slutty evenings where she let boys get a bit too handsy.

Then as she was forgetting all but her sluttiest moments it began to show her other things, maid and service technique, seduction tactics, how to be prettier for men, and fellatio and sexual strategies. The headset was teaching her to be nothing but a mindless domestic fuck doll.

By the time 3 weeks passed, memories of any education Sarah had ever received were replaced with memories of how to give the perfect blowjob or how to clean while properly presenting her holes for use. She knew she was becoming a domesticated sextoy and could do nothing about it but whimper and moan, the paralytic had taken her ability to even scream.

Occasionally flashes of the world around her interrupted her reeducation. These brief interruptions were not a respite however as they showed the surgeries and augmentations being done to her while she couldn't feel it. The first surgery was easily the most brutal. Hooked up to life support, most of Sarah's digestion and filtration organs were removed, replaced with something the headset labeled a 'Biogenerator'. Apparently it was run off a nutrient rich slop known as 'Sustenance Slurry' that could also process down into usable oxygen as a byproduct.

Another surgery rerouted her sinuses into her throat, which the visor informed was to help increase the suction she could generate for her new oral techniques. Afterward came breast enhancement surgery in which they also placed a hardware anchor in her breast tissue with an attachment point coming out of her nipples, later used to hang a chain and mount some sort of shelf to carry bottles or toys.

Then her anus and vaginal cavity were filled with a synthetic rubber cast to more efficiently extract semen. She was told by the visor how to contract muscle groups to tighten these masturbators and better use them to make men cum. The final augment was an injection causing the nerve endings in her throat and mouth to dramatically increase sensitivity as well as causing her lips to swell to the point they were forced into an oversexualized pouty 'O' and could not properly close. She drooled a lot more after that.

Luckily this wouldn't ruin her new clothes, if they could be called that. The unstainable moisture wicking latex that was literally cast onto her body left nothing to imagination. Holes in the latex left her breasts completely exposed but surprisingly supported and perky. The curve hugging latex continued downward to just above the hips where it flared into a mockery of the concept of a ruffle skirt. Below that another layer of see through latex was cast over her thighs, butt, and pubis, but leaving the strokers in her lower holes completely exposed for use. To round off the mockery of maid culture that was her new dress, thigh high ruffled stockings hugged her shapely legs down to dainty feet wedged into 8 inch platform heels with arm sleeves and elongated painted nails to match.

She was a sexed up maid in appearance and her behavior was being overwritten to be the same. Soon she was brought before The Illusive man and she wanted to scream, shout, beg, plead, anything to reverse this and go back to her research or even balancing the budget for those misogynist fucks at the IBEX cells. Instead she greeted him in a bubbly if slurred tone due to her now oversized lips, brought him whiskey and a cigar on the shelf that now hung from her tits, and dropped to her knees to hold them like a table. Then when he opened his trousers Sarah proceeded to drop her head into his lap and bob her enhanced lips up and down his cock like it was what she was made for. After all, that is exactly what she was made for.

When the first of his loads hit her tongue, all thoughts of reversal and escape died in her head, the sheer taste whiting out her mind with orgasmic pleasure and causing her lower holes to self lubricate to the point of dripping. She couldn't help but want even more, so she started nursing on his softening member until it returned to its erect state. At which point she proceeded to use her face and throat as a jerk off toy for the man who broke her until he came and she squirted with a happy squeal. This process was repeated for several hours per day, for several weeks.

The new Sarah was happy, and even her old friends Doctors Ying, Ernst, and Casper came to use her. It was her favourite when all three men used her at the same time in different holes. Part of her still wanted to scream and shout, she even actually cried once when Ernst said that she always deserved this. When he pointed it out and she started to apologize, he cut her off by grabbing her hair and hilting his cock in her throat. He said that she was prettier this way, and that made her so happy her visor made her squirt.

Sarah then helped the security team lure in and trap the other women that worked at Chronus station and converted them into toys for the men too. This made her so happy she came when she saw one of the former female security gaurds getting gang fucked before her digestive surgery. Those men were a little silly though, all that cum they gave her wouldn't feed her until they put in the Biogenerator. When Sarah politely and demurely informed them of this they said she should suck all the cum out of the security girl since she couldn't use it and Sarah thought that was an excellent idea. Men were so smart!

The woman moaned and begged for Sarah to stop, to help her escape or even just let her go. Sarah reminded her that she was being synthesized, improved! This dumb cunt should be GRATEFUL! It made Sarah so mad that she bit the dumb whore's clit, and when she screamed and kicked Sarah asked the nice men if they would hold her down while Sarah finished her cleaning duties.

The men agreed and the one holding her shoulders down found a ring gag and finally shut the whore up with his majestic manhood. Sarah didn't think the dumb cunt material deserved to pass out choking on such beautiful cock meat but that wasn't her call, so she finished cleaning like a good girl. When she was done cleaning the holes she noticed the bitchy twat selfishly hadn't woken up yet and left the poor man with a hard on, so Sarah sucked him off to make sure he could focus. Blue balls were no good for anyone after all.

Weeks later during a meeting she was present for (fluffing the Illusive Man ofcourse), Sarah heard that 99% of Cerberus female personnel were enhanced like her now. She was so happy all her girl coworkers could understand the joy of sucking and fucking dick instead of boring old paperwork or science stuff. As she buried her nose in Mr. Illusive Man's pubes over and over she heard him ask the room their opinion on sending combat units to take on someone called Dr. Liara T'soni. She never took the cock from her face pussy to answer, her opinions didn't matter only her holes and her cleaning skills like a good girl.

A chorus of assent and mixed groans followed by feminine squeals filled the room as certain board members and section chiefs gave their own personal entertainers a delicious and orgasm inducing throat pie. The noise made Sarah redouble her efforts, bad thoughts were coming back and master's cum always made those go away and left her with a puddle between her thighs. When she managed to throat him entirely and stick out her tongue to toss his balls back and forth lovingly with the wet muscle, The Illusive Man blew a load of her favorite treat right down her greedy little cum hole, and Sarah was ecstatic!