The Middle-Aged Shut-In and the Apocalypse - Chapter 8

Mother and Sisters

"……Ah～ woo～?"

I brought the mom zombie into the living room, carrying her princess-style.

Over by the window cushion, Shion, who had returned at some point, was sunbathing. It’s her favorite spots. However, even when looking at the mom zombie I was holding, she didn't show any particular reaction. There didn't seem to be any sense of tribal camaraderie or family recognition. The mom zombie, blankly zoning out, was exactly the same.

"Looks like there won't be any problems."

"……"

I sat on the sofa and had the mom zombie straddle my lap. I was a little worried Shion might get jealous, but she was still in her digestion period and thoroughly enjoying her sunbath.

"Alright."

Since the mom zombie doesn't excrete anyway, I decided to accustom her to her anus, a spot Shion dislikes, and turn it into a makeshift artificial orifice equal to her vagina. The mom zombie sitting on my lap behaves remarkably well. Her gestures are elegant, or rather, ladylike. It would be a waste for her great breasts to sag, so I have her wearing a bra. Even so, they bounce and sway heavily, which is quite impressive.

"Well then, let's go grab the tools to prep her anus……"

For about an hour, I surfed the internet while using her front hole as a pleasure device. I inserted a beginner-sized toy into her rear. Let's expand it slowly and carefully. Her hips began to arch and her thighs twisted together—perhaps a sign that the mom zombie is starting to evolve. What should I do? Should I keep using her as a test case for Shion-ification, or should I indulge my preferences and transition fully to her anus?

"Let's go with the anus."

Ah, Shion, who had been sunbathing, cast a glaring look my way. Ignoring her, I continued training the mom.

"Ah～ the rear hole tightens up much better."

Thwack, thwack, thwack—Haruka, the mom zombie's ass, made a rhythmic sound. With both hands resting on the kitchen chair, her widely spread legs firmly supported her weight. Without much trouble, my penis was able to penetrate all the way to the base of her large backside's opening.

"I think I'll use Haruka exclusively for her rear hole."

"……oh"

Because I took my time preparing her, a copious amount of semen came out. It was around the time Shion usually approaches, but she wouldn't come near, seemingly disliking the anus usage. From the living room, she glared over here, growling softly as if threatening. Well, if I leave her alone for too long, she gets into a bad mood. I picked Haruka up and laid her on the sofa, then beckoned Shion, who was still on guard.

"Good girl. I won't force you."

"……Woo～"

She approached timidly and rubbed her cheek against me. Apparently, she isn't in food mode but in a spoiled, needy mode. The sun is starting to set, so I should probably make dinner. Since zombie girls like Shion don't need food, it's strictly just for me.

"Now then."

Haruka, the mom zombie.

Hinagiku, the glasses-wearing zombie girl.

Since the number of new zombie girl samples had increased, I decided to run some verifications. It's a bit late to worry about ethics. What I was curious about was the semen I ejaculated inside them. Zombies have no life functions. In other words, they shouldn't have physiological functions either. 

If the semen poured into their bodies just accumulated, it would undoubtedly rot. Well, originally human bodies contain a massive amount of bacteria, so zombies should technically accumulate gas alongside putrefaction, but setting that aside.

"Hmm……"

On the sofa, which had its backrest lowered into a bed-like state, Haruka and Hinagiku were laid out side by side. Both were wearing only bras, with their lower halves completely exposed. Both had their crotches spread open, exposing their private parts right in front of me.

"Nnh～…… mumble mumble"

Shion was on her usual cushion, sunbathing after her routine. She didn't seem interested in the other zombie girls. I parted Hinagiku's labia and inserted a finger into her vaginal opening. The slickness was from the oil and from being moderately loosened during the morning routine. 

The pink vaginal mucosa was slowly contracting. I hadn't noticed when inserting my penis, but her flesh does indeed seem to be slightly active. It's been about a week since I brought her home. Even for Hinagiku, who gets the fewest turns, I've ejaculated inside her easily over ten times. Yet, there was no sign of the semen from this morning remaining.

"As for Haruka,"

The mom zombie already looked completely transformed into an erotic doll. Her mature vulva opened plumply, and the folds of her vaginal opening trembled as if spilling out. Despite claiming she was an anus-exclusive battle hole, I've been vigorously inserting into her front hole too. 

Because I carry her around as a pleasure tool, I've ended up using her more often than Shion. And the changes are obvious. When I touch her vulva, her hips twitch with a jolt, and her vaginal opening gapes wide. The sticky fluid coating the folds is fluid secreted by Haruka herself. Unlike Shion, she doesn't act autonomously, but her nipples perk up and she throws her head back.

"I see."

Since this is just a makeshift experiment, there's no need to hold back. I inserted my erect penis and savored Haruka, who had evolved into a premium pleasure device. Despite ejaculating inside her to the point of overflowing from her vagina and uterus, the semen poured into Haruka's womb disappears before I know it. 

Of course, if I dig into her anus immediately after a vaginal ejaculation, the thick stuff will drip out from the front. Yes, Haruka behaves well with her anus too, showing no signs of refusal. Since her front hole is also well-conditioned, which one I insert into just depends on my mood. Therefore, Haruka is a large-breasted doll capable of both front and back.

She doesn't say "ah" or "woo" very much, but she has come to understand my words and follow them. At night, probably out of consideration for Shion, she goes back to the storage room on her own. Well, the storage room has been renovated into a room for Haruka and Hinagiku. Hinagiku stays asleep the entire time. She doesn't even walk on two legs. However, if I place a hand on her butt, she will spread her legs on her own to make insertion easier.

"I'm cumming, Haruka."

Holding her thighs, I pressed my groin against her. Haruka, who was panting with her tongue out, let her lower abdomen spasm. I poured my semen into her womb with a thick, heavy flow. What surfaced below Haruka's navel was a mysterious pink pattern. 

A similar pattern has surfaced on Shion's lower abdomen, which has already become a permanent crest that doesn't disappear. When I pour it into the anus, a slightly different crest design surfaces on the back of the hips. I don't know if it's a womb tattoo or what, but I view it as a fantasy-flavored body painting.

"What an erotic stomach."

I could see Haruka's vagina twitching and contracting from the outside. The way she closes her eyes as if embarrassed makes it all the more erotic. Because her lower abdomen is toned, you can practically see my member sliding up and down inside her from the outside. Neither Haruka nor Hinagiku are deteriorating. There are no signs of rotting or drying up. 

It is an unnatural existence that defies various laws established until now. Ultimately, it must be maintaining its existence through an unknown theorem not covered by modern science. Modern science, laws, and theorems are all "proofs of observation." You observe a phenomenon, conjecture the results of that observation, and prove it so no contradictions arise. 

The accumulation of imagination upon imagination, resulting in an imaginary academic tree, is what is called "science." Therefore, by its very mechanism, science is poor at proving things that do not exist. Thus, one cannot eradicate the zombies existing right in front of my eyes by claiming they don't exist.

"Ah～"

While comforting Shion, who was purring and acting spoiled, I was listing out our stockpiled supplies. There are enough provisions for me to hole up alone for a year. Since Shion and the others don't eat or drink, there are no errors in the calculations.

"Nnh～"

I stroked Shion, who was in a good mood using my lap as a pillow. It feels like keeping a large dog. However, even evolved new-type zombies like Shion seem to have personalities or behavioral patterns. Shion, who used to be a wandering type that attacks people, basically hasn't changed her core behavior. She coos at me seeking things she wants, like body heat or meals. 

I feel like if I don't give them to her, she'll lose her temper and attack me. Haruka, who was a routine-type zombie, has started exhibiting strange behaviors. What did she start doing? She was cleaning the house. Using a broom or a mop, she is still endlessly cleaning even now. Since she was moving around in the middle of the night, I was a bit startled the first time I saw it.

It seems they don't normally need rest or sleep. Since Shion normally crawls into bed with me, it's a characteristic I hadn't noticed. I wonder if Shion, while sleeping with me, actually stays awake the whole time just relaxing.

Regarding Haruka, I can only think that memories from when she was alive remain. Not limited to routine types, there must be fragments of memories. Well, since Haruka sometimes gets stuck while cleaning like a glitched AI at a dead end, her thinking capacity is still quite low. 

Whenever I find her like that, I plug my cock into her large ass right on the spot to "recharge" her, and put her back on her routine work. She is subtly useful, so bringing her home was the right call. I haven't messed with Hinagiku much, but she continues to sleep as usual. She doesn't move except for occasional tossing and turning, so she is treated as an adult-oriented decorative ornament, exactly as initially intended. In terms of frequency of use, Haruka, whom I dressed in erotic sexy lingerie, is the top choice. 

The erotic accessories left behind by the previous homeowner ranged from things that could kill a virgin to items of rather vulgar taste. They don't suit Shion, who is still a youthful high school girl, but I have Haruka wear them on a daily rotation. With something like that walking around the house, I end up wanting to plug her the moment I see her. Or rather, since there's no need to endure, I just plug her immediately. I keep writing the observation diary, but I'm merely venting my sexual desires as the whim takes me. If, by some remote chance, Shion, Haruka, and the others suddenly change and I end up being eaten alive by them, it can't be helped.

"Ah～ nnh～"

At the very least, I didn't feel like restraining or locking up Shion, who has grown attached to me.

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