Of course the buttslut does

With steps quaking with nerves and hormones, Samus walked back to the screen and before her better judgement kicked image had pressed Accept. A small window flashed saying "Payment accepted" and out from a panel in the wall popped a robotic arm that was holding a chip. With shivering fingers she and took the chip and then reached behind her head and slid it into the suits port at the back of her neck. With a soft click it was connected to her suit and a few moments later she felt it take effect.

The first thing she noticed were some new symbols on her optical system. Her suit was already connected directly to her brain and optical nerves and so she only had to think the word "begin" for the changes to fully start. Immediately she felt her blue skintight suit begin to hum as its own reserves of nanobots were taken over by the upgrade and repurposed with their new programming. The AI was far, far smarter than it had any right to be and during it experiments it had found a way to blend technology and biology like never before. What were previously only regular nanobots capable of repairing damage to samus' suit and some superficial wounds, they became a kind of stem cell able to be reprogrammed for any purpose and any task in the body of their host. Their production went into overdrive and as Samus stood there she felt them begin to mould into a jelly like substance and, to her perverted pleasure, she felt them concentrate around her ass.

Samus realised she was panting as her suit heated up slightly from using so much of its power to reproduce the nanobots in enormous numbers. A light coating of sweat graced her forehead and a moan excaped her lips as she felt the jelly of her suit begin to push it's way into her holes, starting with her ass. She saw on her HUD the words,

"Capacity Upgrade now in progress"

Her asshole was far from virgin, the little buttslut enjoying the occasional taboo hole when she found the right guy or dildo, but never had she ever felt anything so good as the thick jelly pushing its way deep into her ass. Deep was hardly an adequate word as she felt it never stop, first completely filling her colon and then forcing its way up into her large intestine. The slight stretching feeling she loved made her very happy she had gone with this upgrade. 'maybe when it's done I'll be able to fit 4 or 5 fingers in easily. Maybe Arvos' big cock? He had suck nice arms.' samus thought these thoughts to herself and unknown to her, the nanobots listened.

NANOBOT COMMUNICATION: Host has stated preferences. Host has requested ability to fit -kzzzt- 5 -kzzzt- CONNECTION LOST -kzzt- Arms - COMMAND ACCEPTED -kzzzt- **CALIBRATE FOR 5 ARMS**

All this was happening without the naive little sluts knowledge but it wouldn't be long until she'd feel the full extent of her mistake.

It was like the bots were going deeper in waves as at each point where her insides tightened the bots hardened and thickened with each throb and wave of bots. All of a sudden, when Samus was sure the bots had pushed a few feet into her intestines she felt them, in perfect uniform, change their consistency from soft, gooey jelly filling every part of her asshole and into firm, dildo like silicon in a second. The feeling was like no other, her asshole feeling like she had suddenly fallen into a metre long dildo and it had lodged itself completely inside her. She did infact fall to her knees when she felt the dildo like mass inside her asshole begin to move. Looking down at her stomach she saw the distinct outline of a cock shaped bulge pushing through her blue zero suit. The bulge was pushing all the way up to under her ribcage and was starting to thicken. Samus felt herself cum as she watched and felt the cock destroying her insides begin to grow. She moaned like a whore as she felt her once tight ass spread and stretched wider and wider, her hand reaching back to her hole and realising that her suit was making her ass gape. The nanobots dildo was actually hollow as it spread her hole beyond what should have been possible and her fingers felt all around inside the rim of her asshole as it continued to expand. Falling forward so she was on all fours, it looked like an invisible dildo had pushed and stretched her suit deep into her ass when it was infact the suit itself doing the stretching. Samus' mind was going mad from the impossible sensations of being ass fucked by a metre long cock, her eyes were rolling up and her tongue lolled out of her mouth and dripped copious amounts of spit into the floor. Continuing to stretch and ruin her asshole and body further, the bulge that ran up her stomach and under her ribcage and was getting thick enough that it started to push her tits until they were pointing to the side. From behind, her asshole looked like it could now easily take a fisting from 3 large men at the same time and judging from the bulge pushing her tits aside they could all go shoulder deep. The nanobots of course weren't done yet.

With her insides stretched to near capacity it was time to completely ruin them. The suit pulled out almost half its length, the bulge working it's way out from under her ribcage, down her stomach and to her belly. Samus was able to take her first full deep breath in minutes before the breath was **** out of her lungs when the suit dildo slammed it's way deeper that it had before. Her tits were pushed aside and her stomach bulged obscenely along the full length of the nanocock as it pulled back and slammed deeper and deeper up under her ribcage. The bots had been busy rearranging her body and so as he now elastic ribcage was **** to bend around the impossibly big cock that was forcing its way into her ruined body the once great fighter felt nothing but unaltered pleasure radiate through her whole body. Samus felt parts of her mind be altered, other parts of it break as her insides were changed to become nothing but a hole for horsesized cocks. Over and over and over again the breath was knocked out of her as the mind breaking fucking continued. She'd long since speed trying to support herself and now has her shoulders on the ground, her ass up in the air as she placed her hands on her stomach and chest and felt the cock bulging inside her. Deep down she knew she should be horrified with what was happening to her asshole but her mind was too corrupted by nanobots and pleasure to want anything other than more cock, more stretching and making her asshole permanently gape wider.

In and out the suit pushed itself, each time it went in it pushed a little deeper, each time it went out it grew a little thicker to make sure she was stretched wider with each and every thrust into her intestines.

For what felt like days to Samus but was only hours in truth was she ruined by her once trusted suit. Her mind had long since gone blank as she constantly orgasmed, her pussy completely soaked and throbbing, it having run out of cum after the first couple of hours until now it just leaked a little with each wave of orgasm. Still with her ass in the air, her hips had had to be expanded to accommodate the now gigantic gaping hole that was her ruined ass. You could easily drop a bowling ball into her and it wouldn't even hit the sensitive rim of her hole, but it would make a nice bulge under her ribcage once it landed.

The nanobots had now started to slow down once they had ruined her ass more than Peter Pan would ruin Tinkerbell's. As a final touch they merged into the very lining of her asshole and insides, permanently keeping them this stretched, lubed and increasing their sensitivity so she would always crave arms, fists and the biggest cocks deep in her asshole. Some bots had worked their way into her smaller intestine and had optimised them to the point that she no longer produced waste. In one final surge, the fused bots all simultaneously stretched wider one last time, making her gape to the point that her anal beads would have to be the size of beach balls for her to have a chance at feeling them. This final stretch was the last straw her fragile mind could take and as her body rocked in the most intense orgasm of its life, her pussy squirting into her suit and her eyes rolling up into her head, she collapsed onto the floor thoroughly spent.

The now merged bots in the walls of her gaped and stretched asshole began to soften, allowing for the deeper parts of her ruined ass to close up, the stretch now permanently remaining a part of her insides. The bulge that had been poking above her stretched ribcage and pushing into the bottom of her throat was slowing shrinking down, waiting for the next real object to use the sensitive walls to make her cum her brains out again. When the last of the merged bots relaxed into their final form the massive gape of her asshole still remained. A squirt of lube bubbled up and pushed itself out from her forever loose hole and made the rim constantly coated and shiny, attempting to entice anyone and everyone to **** it.

As the final sensations of the Capacity Upgrade faded from her body, Samus was left with an empty feeling that ran from the rim of her asshole and all the way up her stomach to her throat. She somehow knew she'd be living with the sensation for the rest of her life. As she closed her eyes to get some well earned sleep the last of her conscious mind saw on her HUD something that it was too exhausted to even fully register...

***Capacity Upgrade Progress: 20% Complete***