The final rot

Content note: mentions of watersports, scat

It was the hundredth anniversary of the destruction of Earth.

Or what everyone thought was the anniversary of that event. In truth, since you'd absorbed everything into the simulation, and then made it fully self-generating, you'd changed the actual history so that everything had always been a simulation all along. Nobody questioned why historical figures, long dead as of the upload, suddenly walked among them, though every bit as sexualised as anyone else, or even why there hadn't been anyone who refused to be uploaded. It had in fact become a day of celebration, of humanity being saved from certain doom, rather than a day to mourn those lost in the disaster.

Of course, you'd also changed the official records to have the necessary technology be entirely a human invention, excising the role of the T'nin entirely. Tina was the only other person to remember what had actually happened, and only because you didn't want to change her memories of having met and fucked Grzoht and Izalbt before you'd absorbed Isabel and sent the other to a subsim to be tormented by a giantess for the rest of time.

As the years went on and the population of uploaders who simply wanted to try to keep living their Earth-style lives became an ever-decreasing share of the overall population, more and more of them succumbed to sim rot and partook fully in the debauchery. Adult schools had accelerated remedial education programs for them, getting them up to speed on what was now considered normal and, you'd arranged, offering a few basic transformations to help them fit in better.

Naturally, over the last few years you'd ensured that everyone in the remedial programs at least took the offer of Inezian boobs and a fertile cunt, and had tracked down everyone who had succumbed prior to that and changed them, too.

Your dad Greg had succumbed about a year ago, which triggered a subroutine you'd implanted in his mind-chip so that the first thing he did was suck Drew's cock, which was why you had your sisters' husband (not at all put out by the fact that he once again had tits and a twat, since you'd changed the definition of the normal human body type to include those by default) sucking your toes while you made Isabel bounce her ass on your dick. Not that she wouldn't have done it willingly, of course; she just got way more excited when you **** her to do it, in a manner more intimate and personal than you could **** anyone else.

His had in fact been the last remedial class to graduate, which had happened just a few days ago, the result of which was that aside from the asexual folks in the simulation who wanted nothing whatsoever to do with the debauchery, every adult had a pussy (which you regularly eagerly impregnated) and, save only two, breasts at least the size of Inez's. Her size was far and away the most popular, of course, with everyone who had larger looking overgrown, but nobody carried theirs as well as she did.

You were one of the exceptions, of course; while you'd sometimes give yourself much larger ones, you enjoyed having sexual partners who were bustier than you, so you retained the size you'd chosen at the upload, which was substantially smaller than Inez had given herself. The other was your mom Jane, the only person left not to have succumbed to sim rot.

That was no accident, of course; you'd wanted your parents to go last, but since Drew had made his offer to be your personal foot licker for a century if Greg gave him a blowjob, you'd allowed your dad to succumb a little earlier.

You were monitoring your mom's mind-chip so it came as no surprise when she called. You disabled Drew and Isabel's audiovisual-processing subroutines insofar as the call went for privacy.

"Hey, sweetie. Happy Salvation Day."

"Hey, mom. Happy Salvation Day."

"How are you doing?"

"Pretty well," you replied. You kept your partners out of frame. "I've got Drew sucking my toes and I'm fucking Isabel's butt, so it's an average day all things considered." Your mom might not have succumbed to sim rot, but she'd grown accustomed to people, even her own daughters, talking openly about their sex lives with her, especially now that everyone else she stayed in contact with was fully part of the hentai side. Maybe in her ideal world she wouldn't have wanted to hear about how her friend Irene got spitroasted by her husband Keith and their daughter-wife Tania, but she'd accepted that her ideal world was never going to exist.

"So, I've got a question to ask."

"Sure."

"How can I tell if I'm suffering from sim rot? I've looked up information on it but most of it is about how amazing people felt after giving in, not much about what the first-onset symptoms are."

You nodded. Your mom had been a medical professional before the upload, so it made sense that she'd be interested in early detection, especially after Greg's had kicked in so fast that she hadn't been able to see any change from one day to the next.

"Why, do you think it's happening to you?"

"I am the last adult in the sim not to succumb, dear. They ran a news story on me yesterday. It would be amusing if sim rot hit literally one day later, and on our hundredth Salvation Day, no less."

"I saw the story, mom, yes." Sim rot hadn't been officially tracked at first, but once the remedial education program started there was a strictly private registry of everyone who hadn't been affected. Of course, you'd been tracking it before that. Once the registry was down to just the one person, the relevant authorities had contacted her to ask if she'd be willing to reveal herself as such, and eventually your mom agreed.

"So, like I said, what are the first-onset symptoms? Was it ever actually looked into, or was it just decided that since it was an uploader-only thing and it seemed inevitable that everyone would be affected eventually, there was no need?"

"I know you're gonna hate to hear it, but it was just never studied," you said. "Why study something that eventually won't be relevant? The decision was made that it was just better to let it run its course and bring everyone fully into the hentai, sooner or later, that the uploaders who weren't yet there would feel better once they were. And, well, you've seen dad, can you really say he's not happier now?"

"Happier in what sense? Sure, he's having a lot of sex, but this entire simulation is built to make having lots of sex the best thing someone can be doing! Is it so wrong to want to have happiness in the ways we used to have it?"

"It's not wrong, mom, and it's still possible to find that. Love might be much more about sex now than it was before, but that doesn't mean that genuine emotional and romantic connection still isn't important or valuable. Look at the asexual community; they find plenty of fulfillment outside of anything sexual."

"Well, I'm not asexual. I love Greg, even now that his breasts are larger than mine and he's got a more sensitive pussy. I still enjoy it when he bends me over a table and pounds my butt, and I like seeing him happy when I swallow a huge load of his cum." Jane might have been uncomfortable with hearing about threesomes and orgies and such, since she and Greg had been strictly monogamous before he'd succumbed, but she too had grown accustomed to discussing her own sex life, which had been spiced up somewhat given what the simulation allowed.

"What about sucking his tits or eating his cunt?" you asked. "One thing that's common to everyone in the sim these days is total pansexuality and a complete lack of genital preference, well, everyone except you now. So I know you were straight before the upload and definitely only liked cock, but what are your thoughts on it now?"

"I've played with his boobs and eaten him out, yes, but I didn't get as much out of it as I do from when he takes me. And I only did it because it was him."

"Is that still the case? What would you think about cunnilingus with anyone else now?"

Jane was silent for a time. Her mind-chip reached a conclusion almost right away, but her personality and emotional regulator components held up her actually expressing it. "I... I think I'm not feeling as averse to it now." She put her head in her hands. "This is sim rot, isn't it? How fast does it proceed?"

"Nobody tracked it from first onset, since nobody looked into first onset, as I said." In truth, you knew that sim rot proceeded pretty quickly; if you didn't intervene you could have your mom talking about wanting Inezian boobs within an hour and getting knocked up by you ten minutes later.

You were still deciding whether to intervene.

"So at any moment now I could be wanting to plant my face in Mark's crotch and eat him out." Mark was your maternal grandfather, dead as of the upload but brought back when you'd changed history, and like every such adult an immediate full participant in the sim.

"Well, let's walk through it. There's a few things everyone has in common. First, you've said that the notion of sex with people other than Greg isn't as much of a turn-off now?"

"It's not a turn-off at all," your mom said. Having made the first admission she was more willing to give her conclusions about her mental state. "I don't actively want to have sex with anyone else but the idea of not being monogamous with Greg is no longer something I'm just rejecting outright."

"All right, let's get a bit more specific. You said you wanted to might want to eat out your dad, so what do you think of **** generally? Aside from marriage it's the most common form of sexual relationship."

"Do you want me to go through every single relative I've met now? Who in the world haven't you knocked up, Katey?"

"Let's start small, me, Sam, Alex, Joan." She kept in regular contact with her own offspring, of course, and it was primarily through Joan that she'd become accustomed to the more outlandish body shapes that were possible now.

You could see the sim rot proceed through your mom's mind-chip. "I'd fuck all four of you," she admitted. "God, I'd agree to get knocked up by you, if you'd do that."

"Well, one step at a time," you said. You were definitely going to fuck your mom, though. "What do you think about body alterations? After all, aside from the ace folks, you're the most underdeveloped person in the sim right now."

"I don't want a cock and I want to stay human," Jane said definitively. That was hardly unusual; for all that people could and did have an incredible variety of body types, the fact that Inez's body was objectively perfect meant that the majority favoured hewing as close to her pattern as possible within their own preferences, with the main difference from it being that the majority also favoured having a huge dick.

In fact, of everyone in the sexual side of the sim, your cock was the smallest, just as your boobs were about to be, and your ass, for that matter. Not that it mattered when you could make any of them bigger with a thought.

"All right, that's good to know. What about the bits you do want? For instance, do you want Inezian tits, smaller, larger?"

"Oh, larger than Inez's," your mom confirmed immediately. The rot proceeded apace. "I want my assets to be bigger than Greg's, more for him to grab while he fucks me."

"As big as Sam and Alex?" You still hadn't let anyone actually be larger than them.

"I still want to be ordinarily ambulatory, dear!" Jane shook her head. "No, I've seen enough sizes to know what I want. I think the term is 'lap-filling'?"

"Make sure that it is what you want. Your transformation request will probably take decades to go through, and reversing it might take even longer. The powers that be tend not to look too kindly on people who didn't think through their changes fully." You left out that you were "the powers that be".

"I'm pretty sure. And I want an ass that matches it."

"Of course." You didn't care for bodies that were too top-heavy or too bottom-heavy, so you'd constrained people's preferences to ensure that everyone was properly curvaceous. You had no issues being a hypocrite when it came to imposing your own preferences on everyone else even as nobody else had any. If they didn't want reality to be controlled by one horny twentysomething, they should've done something to stop you from hacking the sim in the first place.

"What about kinks?" you continued. You knew your parents had been pretty vanilla in their tastes. "Feet, bondage, bukkake, spitroasting, piss, shit? Just to name a few."

The rot continued. "I think... I'd be open to all of those," your mom said. "At least, if it was someone I trusted doing them to me."

"So dad, then?" you asked, though you already knew the answer.

"No, he's too new to this as well. But you've done a few pornos, haven't you? At least, it seems like everyone's done a few."

"I've done a few," you confirmed. More than a few, though the only ones where you'd actually shown your face and let it be known it was you were pretty tame ones involving you fucking Tina or Isabel.

"So you at least know something about what those are like? I don't know if you've actually done them, though."

"I know a bit about it, yeah. The more experienced porn stars love swapping stories about their wilder experiences, or comparing how often they've done a certain type. Did you know that Inez and Nora have done over a thousand--"

"Yes, you at least know about them, I get it," your mom interrupted. "I think... if you're willing, then I want my first experiences with those to be with you, Katey."

"Of course I'm willing, mom. I'm your daughter and I love you, in every sense of the term. Getting to induct the last person to succumb to sim rot is just jizz on the tits."

"Is that what they're calling it these days? No more 'icing on the cake'?"

"What do you think icing is made out of these days, mom."

"I guess I should have expected that," she replies with a chuckle.

"Any other changes you'd want? Back boobs, like Joan's got? Tentacles?" You waggled yours in frame.

The rot finished. "No, I think the only other change I want is a hair-trigger cunt and asshole, and then I want your cock in them, Katey. But I guess that'll take a few decades. But I'll definitely be eating out Greg tonight."

"What, you think the higher-ups wouldn't approve an exception for the final person to join the fun? And anyway, there's still a string or two I can pull, you know I worked on the sim."

"You got fired within a week," she reminded you.

You shrugged. "And then I was a private contractor. I've still got connections, mom."

"Well, if it might go through right away, then I want you there when it does so I can get my boobs around your shaft before you rail me."

You were both in private spaces on the general layer, so you said, "Shift up to the adult layer, then, and I can join you momentarily. Just got to finish busting a nut into Isabel. Drew's already cumming all over the floor from how perfect my feet are." You'd long since removed the override that made your feet objectively perfect, letting Inez have that along with the rest of her body. Still, you had made yours second-best with an indefinite override, so it was little wonder that Drew was happy to be your personal foot licker for a century. He'd have been even happier to be Inez's, but she had too much demand for them to be willing to accept such an offer.

Of course, there was also the question of your mom's remedial adult education. A class of one would've been somewhat awkward given how much focus was put on having a wide variety of partners, and the content taught was just different enough that putting her in a class with those freshly mature was also not especially desirable.

You shrugged. Sure, she'd miss out on the experience, but you could just dump the knowledge into her head. It was regularly done for training for what few professions still actually existed, after all.

Blasting your load into Isabel so hard that it sprayed out her mouth, you left Drew licking Isabel's feet while she sucked his cock and fingered his slit. You'd retroactively tweaked the offer he'd made to be willing to pleasure the feet of anyone you directed him to, not just your own.

"All right, Katey. But I don't want someone dropping in on me all of a sudden, so could you please come over so that we can shift back down and be private again? I saw that O-face you made."

Your projection shifted into your parents' bedroom, where your mom was sitting naked on their bed, idly cupping an unimpressive boob and fingering her twat.

"So," you said, letting your dick get fully erect and ready to be shoved into her, "do you know how the transformation request process works?"

"Your dad watched a few holos about it when he was going through the remedial ed," she said. "I couldn't help but pick up something."

"OK, well, let's get your new body coded in and see if they're willing to do the override."

Since Jane wanted relatively simple changes, it didn't take very long for her new body to take shape in the projector. She examined it from all angles and in numerous positions before nodding. "Yes, that's what I want, that's the body I want you to fuck silly."

"Hopefully right now," you said with a bit of a grin.

"Hopefully right now," your mom agreed. She tapped the button to send the request.

The override you'd put in sent back a message. "As the final uploader to enjoy sim rot..." As with all transformation requests, it didn't immediately occur; the person requesting it was given one final opportunity to accept it or not once it had been approved.

Your mom didn't even hesitate.

--

"Mmm, this is so much better," Jane said, caressing her massive rack as you lifted your butt from her face. She'd dived right in and hadn't hesitated to do almost everything with you.

Unlike Mel, your mom decided to release all of the holos you'd just made together at once, you fucking her every which way, her sucking your boobs and you hers, foot worship, and all sorts of niche content as well.

Not that even something like scat was all that niche any more; as your mom had noted, basically everyone in the sim had at least a few porn holos out there and by this time more than half of them had a scat holo, both dumping and eating. More than that if you only considered one of the two.

Dismemberment holos remained rare, and thus very popular and in demand, but that was only you had the overrides necessary to put people's virtual bodies back together immediately afterward. You hadn't done them with very many people, though Inez had finally agreed the previous week and it was already the most-viewed holo of all time, but you were planning to do Mel and Jane together. You knew your mom would be up for it if you just suggested it, and you also knew from a look at Mel's code that she would ask for it in about a month.

It wouldn't do quite as well as Inez's, but being more popular in porn than Inez was literally impossible unless you decided otherwise.

You slid down behind your mother and inserted your stiff shaft in her butt, tweaking it so that it optimally pleasured her G-spot, and let your tentacles fuck her nipples. "What would you say about doing porn with Greg? We could spitroast you, or you could get Joan to bring over a few of her bodies and piss all over both of you at once, maybe."

"That sounds lovely."

"What sounds lovely?" Your dad's voice came from downstairs as he locked the door behind him.

"You and me spitroasting mom," you called back.

He practically flew up the stairs to the bedroom, his bust bouncing appealingly. He smiled as he took in the sight of his daughter using his wife as a sex toy. "Honey, you should've told me you were feeling sim rot!" He hopped into bed, pressing his boobs against Jane's much larger ones, and sliding his dick into her slit.

"Mmm, it just all happened so suddenly, and I figured, well, Katey's been involved in this a lot longer than either of us, this side of things, I figured she might know better."

"She didn't go through sim rot; I did," Greg pointed out.

"I know, but... she's also more experienced with how love and sex and all that works now, so she was the first one I thought of." Jane pouted just a bit. "I hope you're mot mad, honey."

"Well, maybe I'm a little bit hurt that you went to her instead of me," he admitted. "But not so much that I'm not happy we can finally enjoy all the activities a family should do together."

"If the two of you really want to meet the family, Inez's weekly orgy is tomorrow. Ever since you got sim rot she's been asking me when I'll bring you around, dad, so I'm sure she'd love to have both of you there."

"That sounds wonderful. Which daughter of hers is it who has all those tentacle-cocks?" Jane asked.

"Stella, dear," Greg reminded her. "We've met Nora, remember? Joan's mom, and a sports star besides."

"Right. Well, I'd very much like it if she'd give us our first cock-bondage and multiple-penetration experience together."

"Those are two of her favourite things," you said, using your other two tentacles to fuck your dad's nipples. "I'm sure she'd be honoured to be the one to introduce you to them."

"We're lucky to have such a well-connected daughter," your dad said. Jane nodded agreement.

"And I bet you feel lucky that you get to fuck Inez every week. Imagine having access to that pussy so regularly."

You chuckled. "Every week? I can assure you, not a day goes by when I don't have her screaming my name while I stuff her full of cum."

"Think she'd let me stuff her full of cum?" Greg asked hopefully.

"For the father of her favourite fuck buddy?" Inez had lots of sexual partners. Oliver was still her favourite, and the only person she loved in more than a sexual or familial sense, but out of the rest you couldn't not be first, just as you were everyone else's. "Of course she'll want to fuck both of you. She'll want to know where I got it from, after all."

The three of you cuddle-fucked on the bed, and you felt yourself relax just a little bit more as the sexual project was complete.