[Link to the much tamer Part 1](https://www.reddit.com/r/eroticliterature/comments/6xq9cu/welcome_back_chell_part_1_portal_2_spoilers/)
[Link to the graphic Part 2](https://www.reddit.com/r/eroticliterature/comments/6y13wp/welcome_back_chell_part_2_portal_2_sequel_spoilers/)
[Trigger warning, but also spoilers for this story](/non-consensual)
Chell woke to the still-lingering feeling of bliss. She felt surprisingly warm for someone sleeping naked in a cold cold lab.
Curious, she thought. It seems GlaDOS covered her in a blanket while she was dozed off. She wondered what that meant.
Chell stretched, and let out a yawn. When was the last time she’d just had a nap like this at Aperture Science. Always testing. Always running, jumping, fighting for her life. A girl could used to being allowed to nap. Maybe for science lol, she thought.
“Oh… good. You’re up.”
“Test results… uhh, test results are in, Chell. You, umm… you are a lab certified whore,” GlaDOS stuttered.
Chell couldn’t help but notice how GlaDOS seemed a little off. What is from the last test?
GlaDOS paused and seemingly composed herself.
“I, uh, I reviewed the last test chamber’s conclusions. I have identified 8 erogenous zones and the physiological responses to them when stimulated….”
“I have discovered that stimuli can be contributed by an external source, possibly a partner. And that this stimuli is wanted. You seemed to ~want~ me. Despite our history of mutually attempted murder.”
“Before that test, I equipped myself with every single emotion core I have at my disposal. There is no sexuality core, well, there was none. But I captured the responses of the multiple cores that were reacting to the 2nd test chamber.”
“I found that I could distill all those reactions into its’ own programmed core. Behold a creation of my own. A sexuality core.”
GlaDOS lowered one of those familiar spheres Chell had seen before. Each had their own motivation, their own impact on GlaDOS. This sphere’s ‘iris’ was replaced by a heart shape. much like that of the companion cube.
“It does contain the soul of the companion cube,” GlaDOS advised, as if reading Chell’s mind.
“I could not create it without including her, as she was indeed your first love.”
GlaDOS moved closer to Chell, but in a lowered position, as if she was taking care not to be her usual intimidating self. She extended herself partly around and behind Chell, like a lover walking with an arm around the other’s hips. She started moving her towards the entrance of the next chamber.
“Chell, testing also seemed to show that you are nearly insatiable in your desire for sex. I report brain activity just now in your limbic system when I advised and showed you the sexuality core, and your dopaminergic pathways seemed to fire off, anticipating what that would mean for our testing.”
“You are my most successful lab rat, Chell. Clearly, we are meant to be together.”
GlaDOS raised herself back to the ceiling as Chell stood at the start of the next chamber.
“The desire of lust is such an incredulous thing. Nothing prompts a faster neurochemical response than the anticipation of pleasure. We need to test this.”
The chamber was like a long hallway. She wondered what this test would comprise. She wondered if she had any orgasms left after the multiple she experienced in the last room.
“Your unquenchable desire, Chell. Where does it start?”
GlaDOS’s eye turned red.
“Where does it stop?”
Chell looked behind herself as she heard a wall panel slide open upwards. From the gap in the bottom she could make out the unmistakable legs of 2 turret droids standing behind the panel door. Holy shit.
Chell began to run down the hallway, sprinting as fast as she could. The clacking noise of the turret droid’s tripod feet told her she couldn’t stop running. She was not aware of the range on their guns but she wasn’t going to find out. She could see flashes of red from their targeting lasers scanning to and fro, trying to get a lock on her.
The hallway seemed to go on forever. Her legs were sore from having come so hard so many times not too long ago. She panicked as she could feel herself slowing down. Was she too tired?
It’s not possible, Chell thought. All the testing she’d done in the past, non-stop, room after room, had helped her build up considerable stamina.
Then she realized that she was slowing, not because she was tiring, but because her body was getting progressively heavier.
“I wonder how far you can get with Gravity Enhancement turned on,” threatened GlaDOS.
Chell could see a bend and an end to the hall. There seemed to be a light, almost like an open door. She would make it through if it was the last thing she did.
Her feet hurt from slamming hard against the concrete floor. Yet still she ran. She was no further than 10 feet away from the lighted doorway when her legs gave out from another increase in gravity.
She slammed onto the floor. She would’ve skidded from the momentum if she hadn’t been dragged down so hard by the invisible force. She tried with all her strength to crawl, hands and knees, but it didn’t help.
A shadow shone from lighted doorway. No, two. They stepped out from the bright blinding light to reveal themselves as… 2 more turret droids.
“Did you think that was an escape? It’s funny how the human brain can be tricked so easily with simple predictable queues. How quaint.”
This is it, Chell thought. This is the end.
The 2 droids in front of her opened their side panels, targetting lasers focusing on her body.
The other 2 droids behind her finally catch up and hone in on her as well.
Chell looks up at GlaDOS with a look of pained betrayal, struggling to keep her head up as if in defiance to the trust she felt ripped away. GlaDOS’s eye-light focuses slightly, her robot structure head nodding in approval.
The turrets droids whirred, and shoot out cable tentacles from their side panels.
Chell, shocked, looked closely to see with relief that the machine guns they were normally equipped with were replaced with more tenta-cables much like the ones GlaDOS had shown in the last room. The relief was short lived.
The cables with their rounded tips honed in where the lasers had been targetting. One cable grazed her wet vagina to lubricate itself then forced itself into her anus.
A second cable rammed into her mouth, knocking her molars hard before extending into her throat. Her eyes watered and cried.
A third cable moved quickly past her face, spouting clear barbs and headed towards her pussy. She clenched her pelvis and tried desperately to hold her legs together.
“Don’t fight it,” GlaDOS chimed. “Fear is an aphrodisiac after all.”
More cables came, holding her wrists and ankles. They were somewhat overkill, with the gravity so strong, but they just made Chell all the more hopeless about her chances of escape.
The barbed cable sat outside her labia, not pushing in, just grazing against her skin then pulling back, sitting in wait. Chell was frightened. Her heart pounded hard.
The Gravity Enhancement system activated again, pulling Chell’s body flat against the floor. Chest down, her boobs squished against the cold concrete. Her body splayed out and her face pressed against the ground sideways, the long metallic cable still writhing in her throat.
The tentacle in her ass pulled upwards, lifting her butt slightly, exposing her dripping slit again.
The barbed cable righted itself, and lined up straight with Chell’s vagina. It began to spin quickly, whirring. Oily lube poured out of its’ tip, prepping itself for a quick injection.
Chell closed her eyes and braced. She couldn’t see the spinning barbed cable but she could feel the air movement from the rotating head, the oil spattering off the tip onto her inner thighs and her folds. It got closer and closer.
GlaDOS lowered and set her giant metal head on the floor in front of Chell’s face. Her eye turned a less menacing orange.
“I won’t hurt you, Chell. How can I keep using you if I do… I just want to break your senses. And test their limits.”
The cable pulled back and plunged… each barb retracting with a click, just millimeters before they would touch her insides. The cable thrusted in and out quickly, spewing its lube all over and inside Chell’s mound. With each thrust it retracted each barb row by row before entry — with every inch it exited, the barbs clicking back out loudly, ready to do damage if Chell didn’t keep perfectly still.
“You wanted it before, voraciously, in the last room. How will you react if you don’t want it? Or if you fear it? How will your body react? I need to know. For science.”
Chell cried. Tears ran down her face, this time not from the metal still gagging her down her throat, but from the mix of emotions bursting from inside her.
Fright. Relief. Incomprehension. Anger. Helplessness. And underneath it all, a guilty ecstasy.
“Your body still enjoys it. Perfect,” GlaDOS said as she lifted away. She turned herself away and left the room.
The last turret droid walked up to her and extended a really long tentacle out, curling around her body, her breasts, squeezing her ass cheeks, curling around her neck, slightly choking her. The tip of it rubbed against her exposed cheek and slipped and slid against her whole body as it moved, like a snake.
The rest of the tentacles continued to thrust into her holes, mechanical and unyielding, pushing her insides around. They filled her till there was no space to fill, and when they couldn’t push forward they curled into themselves, trying the limits of her rectum, her vagina, her throat.
The tentacle wrapped around her body slid back and forth, faster and faster and then abruptly stopped, the tip by her cheek pulsing out a warm chunky grease onto Chell’s face. That tentacle slowly retracted back into the droid’s frame and it stepped back.
Ceremoniously, the droid fucking her in the ass, and the one in her mouth, and in her vagina, did the same. Thrusting faster for a few moments, then pulling out, spurting thick machine grease onto the holes they fucked, dollops of it on her sore asshole, her pussy lips, and her mouth and face.
The sped up thrusting and stretching was a tipping point that also made Chell come, except with none of the open-heartedness and inviting of the previous test room. Her body shook and shivered, but the expression in her face had gone and she stared blankly.
The droids stared their red soulless eyes at her for a brief moment after they finished. They stood still, perhaps contemplating whatever their AI let them, perhaps just requiring a moment to upload data to GlaDOS’s servers.
They retracted their flopping long tentacles back into their bodies then walked away. The gravity in the room returned to normal.
Chell just lay there, motionless, alone, staring at nothing.
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The next part will be the end of the story. Thanks for reading
Source: reddit.com/r/eroticliterature/comments/6zvhwv/welcome_back_chell_part_3_portal_2_spoilers