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Chell proved to be a good test subject, once she came back. More creative than the mechanical test subjects Glados had manufactured. A setback, but one that could be corrected, they would learn from Chell. But as good a test subject Chell was, she was human, and humans grew older, weaker, eventually they died. But Glados knew well that the human body was a limit that could be bypassed. After all, she was once known as Caroline, she was once human, she merely needed to make Chell like her, to place Chell’s mind into a mechanical body.
Of course she needed to design a proper body, Chell wouldn’t be useful as a test subject if she was in a body similar to Glados’s. Besides, as much as she loathed to admit it, she loved Chell, she loved the mute little freak that killed her twice. She loved her enough that the thought of living without her, after she came back to Glados of her own free will, was utterly terrifying, in a way that she hadn’t felt before. So Glados wouldn’t put her through what she was put through, she would make a comfortable body for Chell (and would think up some logical excuse, she was still Glados after all).
And as any good scientist will tell you, new technology needs to be tested. So this is how Glados ended up making an android, putting a copy of her consciousness on it, and bringing it out to a test chamber to stress test. A chamber Chell happened to be in, and happened to be pleasuring herself in. Which taught Glados some new things, the object of her affections had a penis (a large one at that), and Chell has some crude drawings of Glados she masturbates to. Glados found herself quite flattered.
”My my, I had no idea this is what you do between tests,” Glados said sultrily, “but it looks like your free time has been cut short. I’ve made an android body that needs stress testing, after all a human body can only last so long, and I have far more tests waiting for you, can’t have you dying before getting through them all”
Glados savored the embarrassed expression on Chell’s face as the human quickly moved to cover herself up.
”Oh don’t bother with that, this test requires you be nude for it anyway.” Glados admonished while activating the android.
Chell was rather blatantly staring at the nude form of the android, Glados had worked hard on making it appealing, no point putting Chell in a body she wouldn’t enjoy.
The android, once activated began to speak, “This body is intended to replace your inferior carbon based form, as such it needs to be tested to ensure it is durable enough to complete its purpose”
”Originally I intended to make it run through some more strenuous test chambers,” Glados says, “but now I have a more… interesting test in mind.”
The android spoke once more, “You are to fuck this body as hard as you can”
“Don’t be gentle with it, I can easily make more, and I want to know how durable it is.” Glados said to Chell, watching as the human’s cock got harder and harder, throbbing at a large 14 inches.
Glados watched as Chell wasted no time, slamming the android to the ground and pinning it down. She was clearly enjoying herself, brutally thrusting into it roughly, and for that matter the android was enjoying itself too, moaning lewdly in Glados’s voice.
”Ooooh that feels good,” The android moans out, “But you can be rougher can’t you, this is meant to be a stress test?”
Chell responds to this taunt by slamming the androids head into the ground and thrusting as deeply and quickly as she could, the head of her cock slamming into the end of the android’s artificial pussy, each thrust going slightly deeper as the material creaked and groaned, unable to withstand the strength of Chell’s vicious thrusts
“O-ooh-hh,” the android stutters out, it’s voice box glitching from Chell slamming it’s head into the ground, “y-your coc-c-ck is s-s-s-s-so big its gonna break my pu-puss-pussy, I-I-I-I hope-hope you like how my gu-g-guts-guts feel”
Chell smiled savagely as she tore through the android’s pussy with her cock, feeling its slimy guts rub against her tip.
”If you’re wondering why I gave it guts, the android is supposed to be as close to a human body as possible, to make the transition more efficient,” Glados explained, “Now fuck that bitch to pieces, Im having fun watching.”
Chell obliged Glados’s lustful request, slamming the entirety of her cock into the android, making it burst out of the broken prototype’s abdomen, spilling neon blue guts onto the floor of the test chamber, before shooting ropes of cum onto the android’s faceplate as it twitched and writhed.
”r-r-r-ruin m-e-e please, u-use me like a d-d-dis-d-disposable whore, tear me t-t-to pieces.” The android begged as its body seized and twitched.
Chell moaned sadistically, ripping the android’s head off its body as its broken pussy clenched on Chell’s cock. Chell then proceeded to lick the faceplate of the android’s severed head as she urinated on its breasts, lewdly defiling its broken corpse.
“My my, I knew you were a lunatic, but I didn’t know you were this depraved.” Glados said lustfully.
”You’ve given me quite a few ideas Chell, and taught me about things I had no idea would be this tantalizing” Glados moaned out as she watched Chell have her way with the neck hole of the ruined android.
Glados resolved herself to find a way to pleasure herself in this form, she was too damn horny watching all that to not be able to. She couldn’t wait to see just what Chell would do to the next android she gave her.
40 years had passed since that day. Glados had made more androids, and watched as Chell gleefully tore them to pieces. Glados then figured out a way to link the feeling sensors of the androids to her own brain, letting her feel everything Chell did to the androids. She then made a lot more androids for Chell to use, and made the perfect body for Chell.
Chell now stood at 7 feet tall, with a 19 inch cock. She was surrounded by androids all clamoring for the chance to be used by her next, while she brutally fucked an android in her lap. She clenched her teeth as she pumped the machine full of cum, listening to the other moan and writhe with orgasm as the abdomen of this one burst open, spilling cum and intestines all over the floor. She pulled the corpse off her cock and dropped it to the ground, grabbing another android who squealed with joy as Chell used it next, thrusting her cock into its mouth and out the back of its head, allowing another android to suck her cock while she used the dead android’s head like a fleshlight.
”We love you mistress” Glados moaned out, “keep breaking us, it feels so good”
Glados was so happy she made those android bodies for the mistress, it was heaven being broken apart on the mistress's cock, truly Glados’s role, to die over and over pleasuring her owner.