They bring her in, but amid calamity. A global calamity.

The next couple of years seemed to speed by for them. Ralph was hesitant to consider having sex with his daughter Grace, but was certainly happy to fuck Kira as often as he could, and he kept up his sexual habits with various local women as he traveled.

Kira and John continued as they had been, having quite a lot of sex, and enjoying each other’s bodies. Kira became quite good at wood working and began making furniture out of the lumber they brought in from nearby woods, and John continued to work with Grace in the lab. He was getting close to getting a new sort of nuclear reaction to work, one without the constant worry of disaster and which runs much more cleanly.

With Grace’s help, he also started working on refrigeration, and they were able to find a store of old Freon, which Ralph moved to the farm for them. At some point they want to be able to store food for longer, and keep it fresher.

Grace grew close to Kira and her dad over this time, deep into her teens. She had never stopped breastfeeding, and it never felt odd to her, as she has no baseline information that it wasn’t normal. She also grew more affectionate to Kira, but not in a sexual way.

Then as Grace’s eighteenth birthday approached, the skies darkened. It was gradual over a couple of days, then much less gradual.

The air around them began to smell foul, almost acidic, and a light covering of ash began to fall to the ground. And this alarmed John quite a lot.

He couldn’t know where it came from, given where they were, not exactly, but he knew this to be volcanic ash, the only question was, from where?

There were a lot of active volcanoes in Europe, but all in the UK were thought to be inactive. And none in Europe tended to be powerful enough to send ash all the way to Scotland.

John hoped he was wrong, but he had no easy way to find out. He called Ralph on the two way communication device they had devised, but found him out of range, he was out of town on a trip to London, so he kept trying over the next week.

When he finally got in touch, he asked Ralph to hurry back, and then said a trip to North America was needed, and fast. He needed to see it himself.

“Not a good idea there lad, I just had a boat return from the Caribbean,” Ralph replied. “And based on what they said, they were running for their lives from the ash in the sky, it was much more thick there. They could not ride the trade current back here, they had to fight the wind and come back to Africa from where they were it was so thick. And it didn’t get lighter until they were in the deep water.”

Ralph took a long drag on a pipe he had with him, as he had found a local farmer growing tobacco and had started smoking it in his pipe. “Then it followed them, dusting the water as they fled, they saw it before we did. Whatever happened, it happened in North America.”

Kira looked at her father, seeing his distress, “what is it dad?” He was something of a rock in terms of confidence, his nerves had always been solid, he was very rarely shaken by anything.

He had faced a global killer disease, and had found the cure with his daughter, all the while facing legal peril for **** and the wrath of an unstable US President if he had failed. In the years since, John had faced additional plagues and sicknesses, wars that ravaged much of the world, and the constant possibility of the world finding out what they are and not being able to understand.

Through all of that, his resolve had never shaken, and he had not failed, but his skin was pale. He seemed agitated.

“You look like you saw a ghost lad, what happened? Do you know something I don’t?” Ralph asked, noticing John’s demeanor.

John looked at his daughter, “do you remember reading up on Yellowstone?” He asked in a very low voice.

Now Kira‘s skin lost some color as well, “oh fuck…” she replied softly. “How can we be sure?”

“Can I talk to your men? To see what they saw?” John asked, and Ralph said yes. And the news was awful.

His men were off the coast of what used to be Florida when they heard and felt a great boom, and over the next hours they saw a large and growing red cloud grow into the sky, far higher than anything they had ever witnessed.

They fled at top speed when they saw it to the Northwest, as close to directly away from it, through the Caribbean to the coast of South America, making the crossing to the Western coast of Africa.

As they sailed, they pushed their engine, and then pressed it harder as the ash and foul smelling air began to catch them. They figured they were close to ****, and very nearly killed their boat racing home, abandoning the trade mission they had been sent on.

Ralph had been very cross, as the engines would need a full rebuild, and had only survived for having been rebuilt recently.

John was in Ralph’s office in his main shipyard in Wick, having this conversation with Ralph and his men, and pulled out a very old and very detailed map of the old USA.

The map listed many places and cities that Ralph’s men had never heard of, and detailed landmass that did not exist at the current time, much being underwater. It was amazing to them, an artifact from a time long past.

John got Ralph’s sailors to show him where they were, and to give him their best guess as to where the cloud rose from, and sure enough, he traced the line directly to Northwest Wyoming.

John looked at the two sailors and then Ralph, and the old sailor sent them away for the night.

“It is the Yellowstone caldera,” John said sadly, looking Ralph in the eyes. “It has to be, it finally blew.”

Ralph asked what he meant, having never heard of it.

“It is a super volcano, as we called them when we lived there, the largest in the world.” John replied. “It goes off every six hundred thousand years or so, and it has been behind, based on what scientists said when we visited it.”

“You were there? At a volcano?” Ralph said, his eyes wide. “Why in the nine hells would anyone visit a volcano? Much less one that big?”

“We were there around 180 years ago, give or take, it was a beautiful place,” John continued. “It isn’t any like a regular volcano, not even close.”

Then he explained what it all meant, what as probably coming. Clouds of ash that would darken the skies, perhaps for months or years. John described the various events when great volcanoes erupted, and described how this was the biggest one.

Plant and animal life around the world might die, the global temperature would likely drop by three degrees, and maybe as much as ten.

There would be a great cooling, and life would be harder than it had recently been, and it would last a few years at least, maybe longer.

In light of the reality that he could see the sky growing darker, Ralph stayed home for the next weeks, and they did a lot of work.

John and Grace got a new power plant working, which produced a small amount of power, using a molten salt based reactor theorized when he was younger. Using a small amount of nuclear material, they were able to get it working at a low and sustainable level. Power without the sun and without wind, that might come in handy.

Then using old blueprints and old but functioning HVAC compressors, they manage to get a cooling system working, and Kira and Grace started building a large underground walk in fridge and freezer.

Kira got busy, and harvested as much of their crops as was ready to be picked, and then as the skies grow darker she started gathering crops that are close but not ready. Nothing could be wasted if her dad was correct.

Ralph was also busy, getting his men in Wick ready for a colder summer than they have ever seen, and a lasting winter.

His shop and shipyards were all prepared, stores of food and both wood and coal. And he had apartments built for the staff that were built to handle a fierce cold.

And every time he headed back to the farm, Ralph brought more supplies. Kira often went with him to gather goods, and they spent a lot of resources, but they come back with dry goods and canned goods that would keep, and backup parts and tools. Truckload after truckload, they stocked up quite well.

When they travelled to town, Ralph and Kira stayed the night, as Ralph needed time with his men getting the shipyard ready for what was coming, and a lot of time was needed to load up the supplies headed back to the farm.

So they would rent a room in town for the night, and would spend most of the night fucking like there was no tomorrow. Ralph had more energy than he ever had remembered having, and their hunger for each other had not waned.

As always Kira enjoyed powerful orgasms, and if it was possible was continuing to grow in physical beauty.

She wore baggy clothing now whenever they were away from the yard and the farm, as there wasn’t any hiding curves like she had. She had breasts like women just didn’t have anymore, they simply didn’t exist in a world without plastic surgery.

The weeks moved on, until finally the sun almost never shined through the dark sky, and they begin to feel the chill in the air. Finally Ralph stayed for the most part, spending a longer period in one place than he was I sed to. He enjoyed the women he fucked around the world, but it was time for that to end, at least for now. For now he had to stay at home with his daughter, with his new family.

Grace’s eighteenth birthday was a somber occasion, but they celebrated it, and finally Kira got an answer out of Ralph, it was a yes. Grace could be brought in, but he couldn’t do it himself. He could not fuck his daughter, she was beautiful but he just didn’t see her like that and didn’t really want to.

So around the time Grace turned eighteen, Kira had a intimate night with her. Grace had never stopped nursing, and their relationship had grown deeper.

Grace and Kira had never had explicit sexual relations, but she had nursed from Kira‘s breasts since she was born, and physical attraction did exist.

Her touches had become more gentile, more loving. She squeezed her mother’s breasts as she fed, and would occasionally nibble on a breast, as it drew a pleased reaction from Kira.

They had long kissed and embraced, these days when naked, but the kisses had been pecks. This had changed to be deeper and lasting kisses, and recently had become a bit romantic, with some tongue being involved.

It still wasn’t sex, but the two women were bonding and becoming even closer.

Finally Kira broke out an old photo album, and explained the truth, a truth Grace understood fairly quickly.

Kira explained the cum addiction disease, and how she caught it just before her own eighteenth birthday, and the state it left her in.

She explains how her father was a doctor and scientist working in a government funded lab on the cure, and how she had been unwilling to accept treatment for the disease from the strangers who were in the program as donors.

Grace felt ill when she hears that it meant strange men would cum in a woman’s mouth, and if their symptoms were advanced, in her ass.

“We’re your symptoms bad?” Grace asks.

Kira smiled, and held her daughter’s hand, “my stage was fairly advanced when they found it, I was into something like nymphomania or sexual addiction, my mind was on sex all the time, but I couldn’t do it like that. I knew what was coming, that it would get worse,” she said in a somber tone.

“I was going to need three doses of semen a day, at least, just to start,” Kira continued, seeing Grace’s disgust at the thought. “At least three men per day, and how I was advancing, all three would have been fucking me in the ass. And it would have grown in number, I saw my dad’s notes, women at my stage sometimes could not be treated enough and died, and spent their last days in a sort of sexual madness, with as many as ten men per day. I didn’t want that.”

Grace asked why they didn’t use a cup, just having the guy jerk off in a cup, but Kira explained, “the proteins in semen that helped women stay alive lost potency very quickly, so direct delivery was much more successful.”

They then discuss how long ago it was, and when Grace heard that her grandfather fucked her mother days after she turned eighteen, and heard of the physical changes that occurred, she was fascinated.

“So it is true then, grandpa isn’t full of shit, you are close to two hundred years old?” Grave asked quietly. “And it is why you look younger than me mom?”

“Yes Grace,” Kira replied. “My dad is eighteen years older than me, but we have been here for a long time. We have lived all over the world, we speak many languages, and we have wealth stored all over the world. Wealth and property we have used to try to stay hidden.”

Grace cocked her head to the side, her auburn hair falling to the side, “why hide? I mean who cares? Who would even notice?”

“I wondered the same thing as we didn’t visibly age, and as my dad started to look younger,” Kira replied. “But the people we knew got old and we didn’t, and at times they hated us for it. And the government my dad helped soon wanted to learn why he was different, why they couldn’t bottle it and reproduce it.”

“And darling, I don’t look normal, neither does your father, or your grandfather,” Kira continued. “For that matter neither do you. This change makes us look quite beautiful, people would remember us.”

A long silent moment passed, and then she continued, “we have moved all over, spending ten years or so wherever we went. Mexico, further into South America, then as the climate for bad we went North.”

“We ended up living in Canada, then Switzerland, then Sweden, then France, then Norway, and eventually here,” she continued. “This is the longest we have stayed anywhere, right here on the farm.”

Grace was looking at the pictures, and stopped at one that has a good view of Kira, “how do you look better than here? Assuming this is before it happened?”

“This thing changes you Grace, it changes your DNA. We heal, like really quickly, cuts heal in minutes, after it happened our dads both started looking younger, and got taller with more muscle. I didn’t get taller, but by breasts got bigger and more firm, my muscle tone got better, and I come back to this shape very quickly after childbirth.”

“My hair became softer, my eyes became more green, and even a bit brighter,” she continued. “And you have seen my body, people aren’t usually built this way.”

Kira thought of how to describe what she wants to next, “sexual intercourse changes us, it is how it happened with me and my dad, with our other kids, and with your father Ralph.” She said sweetly, “it also refreshes us, it makes us stronger, and smarter. And the breastmilk I provide is incredibly good for you, and I make a lot of it. You never stopped drinking it, but our dads drink it as well, and so do I, every day. When we found out how much it helps us, we kept drinking it. Specifically it helps us with what happens after sex.”

Grace gave her mom an odd glance, and Kira continued. “When me and my dad had sex for the first time, we both fell asleep for a while, for hours. So much was going on, it seems our bodies couldn’t handle it,” she said with a smile. “Blowjobs have always been different, I orgasm every time your dad or my dad finishes in my mouth, but regular sex? That was something else. Before we started drinking my breastmilk, sexual intercourse would put us in a deep sleep for some hours.”

“But sex feeds us, it keeps us strong,” she continued, trying to be as detailed as possible. “Without it, we start to fade in power, in our strength.”

“So regular sex, with a family member is required to stay young like you have? To live forever and not be hurt?” Grace asked.

“Something like that yes,” Kira replied.

“And what, now what, my dad is going to fuck me to bring me into this?” Grace asked quietly.

“No, not your dad. Your dad said no, he won’t do it,” Kira replied. “And none of it will happen without your consent, nothing at all. But if you consent, my dad will be the one to do it.”

Their conversation continued for a while, Kira described what happened with their other kids, with the sex cult in Paris, and when it got to the lesbian sex her mom had enjoyed, Grace lets her know she wasn’t really into that.

She enjoyed kissing and how Kira‘s breasts felt, but she wasn’t really keen on sex with a woman. But her mother knew that time might tell a different story on that.

Grace consented to her grandfather John fucking her, and her mom told her that if she wanted to talk about it they could. But with the air getting bad, the skies getting darker and with them about to lose what crops were left in the ground, the time was now, Grace knew they had waited long enough.

Her best chance to survive what was coming lied in the gift they had to give her.