Pretty good, though the tail's a bit inconvenient

If it hadn't been for the fact that it would all soon be irrelevant, the year before the upload would have been hailed as the greatest in the history of human neuroscience.

Of course, this was because the alien technology that simulated the brain so efficiently was available for those few who still wanted to pursue their interest in field to study.

Everyone else just knew that they would still dream in the simulation.

Not that anyone actually had to. The supercomputers were more than capable of emulating and rendering every human being fully at all times, with capacity for the population to expand hugely--an important consideration in a scenario where everyone was effectively immortal and could have children with few consequences.

But it was expected that most would still choose to sleep at times, and the storage technology included within it algorithms to determine the necessary mixture of sleep types and, to the extent that REM sleep would have been required, simulate dreaming.

Nightmares were turned off, and everyone remembered their dreams.

At least, that's how it worked for most people. For you, you effectively stayed conscious while in sleep mode. With elevated access you were able to traverse the code and the data underlying the simulation, peeking into any aspect of it you wished.

You double-checked your work with the other viruses, making sure you'd got them properly controlled. The handful of other hackers would each think that their assumption about what would happen had proven correct; nobody would suspect that you had the highest level of access.

There was also data you found about an organization called LogiCum, which had covertly pushed development of the simulation toward including all the hentai tropes it did, in collaboration with a significant part of the project team. Its leaders also had secret elevated access--but still not to the extent of yours.

If you'd had shoulders, you would have shrugged. They could play their games; all you cared about was that you could protect the people you loved, and have a little fun on your own.

It did occur to you that someone else might have managed to hide their own sabotage even from you with a worm more cleverly coded than yours was. But if that was the case, there was nothing you could do about it, so there was little use worrying about it. The possibility just made it even more advisable to keep a low profile yourself.

There were only a few people you really wanted to tell about what you'd done, just Tina and your family. With access to every human mind, you found that you could effectively find out exactly how someone would react to your telling them about your new abilities. Of course, to do that, they'd have to be uploaded already, and it would still be a while before any of them were.

At least the process would be effectively instantaneous. The system throttled computation for ordinary interactions so that people would react at ordinary speeds to which humans were accustomed, but in the pure digital space you could essentially have a full conversation with someone's mind within nanoseconds.

You flitted about some more, confirming that you would be able to do other things once the full upload was complete. You could effectively rewrite history, by changing all memories and all records to reflect what you wanted them to. Wholesale personality changes, alterations of societal norms, nothing would be beyond you. You could even **** the simulation to render in different styles, and just delete enough people, or at least forcibly not render them, so that the available computing power would be sufficient to the task.

There was a slight delay, you'd observed, between someone's mind being digitized and uploaded and their new form being generated within the simulation, so you were able quickly to determine Tina's response to your revelation. It was exactly what you'd hoped it would be.

Recreating your body, you stood up and put on your clothes. Due to the nature of the simulation, underwear was, while still present, unnecessary, as pain was absent unless an individual user wished to feel it--or unless a hacker like you wanted someone to feel pain, of course. Your sexually-exaggerated form posed no mobility or physiological issues.

Clothing had been adapted to people's new bodies. You still had the most precious parts of the wardrobe you'd had on Earth--another benefit of having worked on the project--but it had been adjusted to accommodate your new proportions, as well as adding additional holes in the shirts for your tentacles and extra room in the crotch of your pants and shorts for your cock. You took a moment to appreciate your stiff nipples poking through the T-shirt and the bulge of your flaccid dick in your shorts before going outside into the calm, pleasantly warm day. Inclement weather was a thing of the past for humanity now.

Making any substantial edits would be inadvisable for a few more days, until everyone had been uploaded and the link to Earth shut down. You figured you'd probably wait another few days after that, after everyone had seen the live feed of the asteroid crashing into Earth and obliterating its environment. Then humanity would truly be nothing but a virtual species, preserved only in computers that you could manipulate to your heart's content.

You would be its god.

Still, you did take the opportunity to test things out on an unsuspecting public. You weren't doing things like random physical changes--adjusting memories, especially as more people were uploaded, wasn't something you felt like doing at this time--but you could easily make someone blurt out a word, or lose their train of thought during a conversation, and leave them none the wiser that they were **** to do it, thinking that it was entirely natural. You could make people feel physical sensations, and even have embarrassing physiological reactions. You could make everyone do nothing but pay attention to you, or make everyone consciously ignore you while still moving out of your way subconsciously. People were just toys to you now.

The simulation had maintained the geographical layout of Earth, though with things like arable land and water being unnecessary there were already plans to develop in places that previously had been unusable or were necessary for agricultural production. You'd seen plans for floating cities in the middle of the ocean, with no foundation, just hovering on the surface of the water. The simulation had also rendered near-Earth space, so there were plans for sky and orbital habitats, and even Lunar bases.

Reaching Tina's apartment building, you chuckled as you observed how the programmers had half-adapted life to the ethos of a simulation. As the visitor, you were expected to use a physical keypad to contact the resident of a unit. The resident, however, could mentally reply, allowing them to respond to such calls even if they were otherwise indisposed. Given your experience with your tentacles--you weren't confident that you'd be able to edit in the necessary muscle memory, as there was simply no basis on which to generate it--you could only imagine how Tina was struggling to adapt to her new body.

Once she buzzed you in, you took a leisurely walk up the stairs--physical exercise was another thing of the past, as was limited stamina--and knocked on her door. You couldn't resist cheating a bit and looking in on what she was doing.

As you'd guessed, her tail was proving quite the impediment for her.

In fact, she was struggling to move at all. She was pulling herself along the floor with her hands; her breasts were too large to get anything but a fingertip's purchase. The stimulation of her bare nipples dragging against the cold floor was sending spasms of pleasure through her, and so even though she was experiencing no pain, discomfort or fatigue, it still took her quite some time to get to her door, haul herself upright, and unlock the door.

Hearing the click, you quickly opened the door, went in, stepping around your friend, and closed it again.

"Katey!" Tina exclaimed. "I was wondering how soon you'd visit." Balancing unsteadily on her tail, she opened her arms for a hug.

"I wouldn't miss my best friend's upload time for anything," you told her, pulling her into the hug. Your breasts tingled pleasantly as they smushed against Tina's, and your shaft twitched in your shorts.

"Do you mind, um, helping me over to the couch?" she asked, a bit embarrassed. "I guess I didn't really think through how to adjust to this." She waved a hand down at her tail, and you half-carried her over to her long couch, where she leaned back into the cushions, her tail trailing off of it and curling itself up of its own accord. She was completely naked, clearly unashamed to show herself off to you. She didn't object as you took off your own clothes, freeing your massive rack and showing off your new cock, already getting hard as you took in Tina's body.

"Ooh, someone likes what she sees," Tina continued, a lascivious grin on her face.

"Already with the sex?" you said, chuckling.

Tina waved a hand. "We're basically living in a hentai. Honestly I half-expected you to pin me down and ravage my holes right there in the doorway." You froze, though your form didn't show it--could Tina suspect that you were able to commit crimes? Did she have any notion that you could, in fact, **** people, unlike almost anyone else in the simulation? "It'd have been OK if you had," she pointed out, "since, well, I kinda wanted you to." You relaxed. Detection of subconscious consent had been coded into the simulation to ensure that sexual activities would cease as soon as anyone involved was unwilling to proceed, even if they were unable to express such.

"You wanna be fucked by a tentacle monster?" you said, teasingly.

"Hell yeah. I'd be having sex 24/7 if it weren't for The Powers That Be insisting that we all still hold down jobs and such. Bullshit, if you ask me. All that's needed to keep this place going is electricity, and we're powered by a massive fusion reactor. I guess we need a few people paying attention to the maintenance bots but just train enough people to do that and let the rest of us live like queens."

You smiled. "What if I told you--"

"You know he never said that, right?"

You glowered at your friend and went on. "--that you didn't have to hold down a job?"

"What do you mean?"

You'd computed this interaction. In theory you knew exactly how Tina would react. But then, there was that old saying about theory and practice. You blocked off the room from outside detection. "I coded a virus, embedded it in my character profile. It worked. I have godmode access to the simulation, Tina. I can do anything I want." You emphasized the point by creating a glass of apple juice in your right hand--foodstuffs weren't limited for the first little while in the simulation, but you should at least have had to get up and go to the recreation of Tina's fridge to pour yourself a glass.

Tina's eyes went wide. "Katey, that is... so... fucking..."

You prepared yourself to wipe Tina's memories of the conversation.

"AWESOME!" she exclaimed. "My best friend is a fucking goddess! Holy shit holy shit holy shit!"

"You gotta keep it a secret," you informed her.

"I don't think I could tell anyone even if I wanted to," she said, then narrowed her eyes. "You wouldn't happen to have something to do with that, would you?"

You shrugged. "I, yeah, I did alter your mind so that you're unable to tell anyone."

"Fuck that's hot. So how does it work?" she asked, excited.

"Humanity is just bits in a storage device and computations on a CPU. My virus just creates an interface for me to alter all that stuff directly."

"You can't be the only one," Tina pointed out.

"No, but as far as I can tell I was the best at it."

"So what are you gonna do? Take over the world? Make everyone your personal sex toys?" A goofy smile crossed Tina's face. "Make us all do the chicken dance on command?"

"Nah," you said. "For one, it's possible someone was even better than me at this. I don't think so, but then, I know my access is undetectable by anyone else that I know of, so someone could've bettered me. So it's better for me to keep a low profile. And anyway, ruling the world just sounds like a lot of work. I wouldn't have that much fun trying to keep everyone in line, unless I want to control them all directly or something."

"Aww, and here I was hoping that you'd reenact some of those stories I liked to read," Tina said. "You can read my mind if you like, by the way. I don't see the point of trying to keep secrets from an omniscient being."

"You think I wasn't reading those same stories? Where do you think I got this idea in the first place?" you pointed out.

"Damn, no wonder we worked so well together. We even jilled off to the same stuff." Tina chuckled. "But then, I bet you dreamed of being the goddess while I dreamed of being the hapless mortal."

"Something like that, yeah," you admitted.

"Well, show me what else you can do. I wanna see a goddess in action."

"I'm waiting on it, actually," you told her. "I don't want to have to alter people's memories as they're uploaded to match the changes I make."

"No worries, you know that the character submissions were fully confidential, and I didn't show anyone my new body except you. You can edit me to your heart's content and nobody will be the wiser."

"Well, if you insist," you told her, and made an alteration to the simulation's data.

Tina's hands flew to her crotch as she suddenly sprouted a penis of her own--another thing that should have been impossible, even for her to do on her own, never mind for someone to do to her, unless she'd gone through extensive counseling. "Hey, warn a girl before you give her a huge schlong!"

"You like it, though," you said, smirking as you made another change to her. "It'll feel really good wedged up between those six massive boobs of yours."

"I thought of having a cock so that I could titfuck myself," Tina admitted, "but I thought it'd just be too weird all at once. Kinda regretting going with six boobs, though, especially when they're this big. Wish I'd stuck with my original thought of just having four; getting to the door was a nightmare."

Your smirk grew wider as you changed Tina's memories back. A look of surprise blossomed on her face. "You bitch! You just made me think I'd always chosen to have six breasts, didn't you?"

"Human knowledge is just data now," you pointed out. "I could make everyone think that Julius Caesar was a hot chick who died of exhaustion after being gangbanged on the floor of the Roman Senate. So it was a simple matter to make you think you'd chosen six instead of four."

"Fuck that's scary," Tina said. "Also, fuck that's hot." Her dick twitched to match her words. "But can you remove them, please? Until I get this tail under control I don't want to be dragging an extra pair of tits and a dick against the floor."

You nodded and removed the additions you'd given her. "Any chance you could just program in a way for me to control this thing?" Tina asked.

"It's a lot easier to add things that already existed than to create things entirely from scratch. I've looked at the code and it was enough work just to have things like tentacles and tails as options. Nobody could figure out how to code native muscle memory for them, and frankly I'm not confident I could do it either, or reverse it if I got it badly wrong." You waved your tentacles as best you could. "Haven't even tried it on myself. It should all work out sooner or later, though. That alien tech is extraordinarily good at simulating every aspect of the brain, including forming instincts like muscle memory."

"Sooner, I hope," Tina grumped. "Hey, if you're not gonna do that, can you at least modify the place a bit to put in some handholds so I can pull myself along more easily?"

"Sure," you said, making the change.

"Thanks." Tina squirmed uncomfortably. "You know, I wasn't kidding about wanting you to ravage me."

One thought later and the two of you had "teleported" into Tina's bedroom. Her arousal clearly grew worse from that show of your power. You reached into her mind and started increasing her arousal directly. "How much do you want me to do what I want with you?" you whispered in her ear. "Do you want to me my fucktoy?"

"Yes," she almost hissed.

"Do you want me to override the safeguards, break the law?"

"Yesssss."

You turned on Tina's ability to feel pain, turned off her ability to turn it off, and plunged your rock-hard cock into her sopping-wet slit, enjoying her screams of pleasure, shock, and agony.