I, The First Woman[DXD/Lilith!Futa!SI] – snippet.

This is the first of four snippets that has a focus on DxD, featuring all the good stuff, a back-to-basics, large harems, overpowered protag, lewd, and various fetishes. Canon Expansion

This one has the SI as a canon character, no crossover elements, with while all works have incests, harems, and genderbending, this fic's fetish focus is futa, breeding, body modifications, and in-universe genderbending.

Will have a poll after the last one is posted. To determine which one goes on my list of potential stories, which mostly counts for 2-4, as for their protags, I don't wanna double up.

xxx

What did you do when you were reincarnated into an anime that you knew from your previous life? Try to obtain power? Steer the course of the story you wanted in your direction using the Meta-Knowledge that you had from your previous life?

Or did you just do nothing because you realized that you essentially had no special talent, no hidden talent, power, or secret heritage, leaving you just the same bog-standard human that you were in your previous life? All the while, your brother would eventually go on to become one of the strongest beings in the setting because he won the literal heavenly lottery?

Yeah, that was currently my life as Isane Hyoudou, twin sister of Issei Hyoudou, the protagonist of the popular Light Novel High School DxD, The Red Dragon Emperor, lower of all things Oppai, and could get the salary man Bad End?

…Was I a little bit bitter and jealous about my circumstances? Yeah, but who wouldn't be? And it was not like I hadn't tried; I had even found an Onmoyjoi and asked if he could teach me so that I at least had something to give to Rias so that she would Reincarnate me alongside Issei. But I proved to have no talent for it, no talent for magic, no Sacred Gear, and I wasn't in a version of DxD that was a crossover with something like Bleach so that I could go and see if the Plot Rock could do stuff.

Nope, I was just living in standard DxD, it seemed, with no avenue to actually grow in strength, only having the faint hope that maybe if and then Rias made my brother a Devil(Because as if I could stop Raynare from killing him.)

And speaking of Issei, he was… a pervert of the highest order, but he was my brother, and he loved me.

Genuinely and wholesomely to the point I had actually fallen for him a little, as he tried to be the best twin brother in the world.

Always giving me his toys, games and letting me have a go at the candy first…

Though it hadn't started out that way, as we had been bickering siblings before I regained the memories of my previous life, but then we had been eight. He had gotten the scare of his life as I had been pretty close to death, as my younger self had climbed a rather tall tree.

The branch had then broken, and I had then fallen and hit my head, which was the incident that had woken up my old memories, alongside breaking a leg rather badly.

Which still bothered me as to this day I walked with a slight limb.

According to our mother, Issei had then rushed into the house crying and screaming that I was not moving and saying it was his fault for daring me to do it.

Not that it was; I had been a stupid kid.

But you couldn't really argue with Trauma.

And ever since, Issei had been attached to my hip and slightly overprotective of me, which… was actually a pretty nice feeling.

Though that did not mean Issei himself stopped being kind of a dumbass, as I had just walked in on him drawing a magic circle in the empty garage as currently, Mom and Dad were out of town on their wedding anniversary, as they always did during Spring Vacation.

"Issei… what are you doing?" I asked my brother who finished his rather nicely drawn perfect circle, Issei always had a talent for the arts, and it was something I had encouraged. The biggest reason for his pursuit was that I had told him if he got good at it, he could draw all the oppai he wanted.

And nothing motivated Issei like tits did… That made me wish I had my own; at least if had fat tits, I could catch my brother jerking off to me and use that as a jumping-off point. But sadly, it seemed that, unlike me, my brother had no sexual desire for me.

And again, I got the short end of the stick, as I had no ass and was even flatter than some of the elementary school students at Kuoh.

While Issei had a big dick, going by the erection, I had seen the one time I had walked in on him showering.

"Hey, Isane," He greeted back with that handsome smile of his. "I am trying to summon a Succubus so that I can touch some Oppai and lose my virginity!" He declared in joy.

If you want to lose your virginity, I've got a perfectly good pussy right here for you to fuck. I thought, but I did not say; instead, I said. "So, how are you going to summon a Succubus?"

"With this book," He answered as he held up a clearly old tome. "Went to the used bookshop like usual yesterday, and there I found it between some of the doujins. I got curious, opened it and there it was written in plain English. Which I am now really happy I learned."

"Bet you are."

"Yeah, wanted to impress and score Amercian babes after we graduate High School," Issei said, as our parents had promised a trip to the US, when we graduated from High School with above-average grades. "And I guess that was what you were reading all last night?"

"It was, and I figured why not try it," Issei said as he completed his Summoning Circle, and with my meta knowledge, I knew that I should probably stop his as this would probably summon a Devil.

That was if it worked.

And if it did… this might be my chance.

"Alright, just don't come complaining to me if she sucks your soul out through your dick," I responded, and Issei got a small look of concern on his face at my statement.

"I don't think that will happen," Issei said confidently and now had probably invoked Murphy. And with that, Issei began the chant, and to my surprise, the chalk circle that he had drawn actually lit up as he spoke in what was horribly butchered… something.

It sounded like Latin.

"Come to me, OPPAI!" Issei finished, and I couldn't help but facepalm as a puff of smoke exploded from the circle, but I couldn't see anyone standing in it.

"Well, Issei, thanks for confirming magic is real, and that you are also not very good at it," I teased.

"Aw man," Issei groaned as he sat down on the garage floor; and here I thought I could get laid," Issei complained. "Well, I don't think it was a total failure."

And with that, I looked back at the circle, and on it, I saw something present that wasn't there before, it being a mass of… red something, the mass slowly jiggling in place.

"Well, congrats, twin brother of mine, you've successfully summoned a goo monster," I said.

"Well, it's a star-Isane!" Issei shouted and before I could react, my face was suddenly enveloped by the red mass that had with extreme speed at me. "Hey, get off my sister!" Issei shouted as. I could tell he was pulling on the thing, as I felt my body being pulled forward a bit.

I tried to open my mouth to tell him to stop, but that was a mistake as I immediately the mass got into my mouth and started moving down my throat like it wanted to be vored by me.

I could feel it polling in my stomach by the sensation of my stomach being stretched out, until suddenly I could see and breathe again. "Isane, are you okay?" Issei asked in worry.

"I am fine… I think," I said as I looked down at myself, where I could see my now-inflated stomach stretching out my sweater. "Oh, that is weird."

"I am so sorry," Issei began apologizing. "I shouldn't have tried to do the thing, I went and go, and you hurt again."

"Shut up, Issei," I said, as I wasn't going to have him go and be miserable again. "You didn't know this would happen, I didn't know this would happen, actual working magic? Who would ever believe that?"

"I guess I can't argue about that, but ugh… should we get you to a hospital? Because that thing is in your stomach." Issei said as he looked down at my round, almost pregnant-looking stomach.

Pregnant…

A shiver went through my body, and I suddenly felt my body started to get a lot hotter as I could feel the mass move inside of me, spreading through my body, becoming a part of me.

"I don't think we need to; I actually… hmm, feel kind of good actually," I said as I felt my voice get husky, like when I was horny…

I was horny…

My pussy, my nipples, my entire body was aroused, and these clothes were restraining me.

Xxx

Issei didn't know what to do, as for a second, he thought he had severely hurt his beloved twin once again.

As the creature that he had somehow summoned, (He didn't think it would do anything; he just wanted to do it for fun. He hadn't, as Isane had said, expected magic to be actually real.)

"I don't think we need to; I actually… hmm, feel kind of good actually," Isane responded to his question, and then a second later, Issei watched with shocked eyes her clothes burn off her body.

Revealing to Issei the glory that was his petite sister's naked body, and instantly, he cursed Little Issei, as it instantly reacted to the sight of a naked woman. Even if that woman was his sister.

"Hmm…" Isane moaned, and yeah, that was very much a moan as she cupped her chest. "Did my breasts get bigger?" She asked in a tone of voice that Issei had never heard from her before.

And she was right; they had gotten bigger. Issei, the Master of Oppai that he was, could tell that Isane's barely there A-Cups were now full on A-Cups, and he could now very visibly see them expanding in size further as Isane's hands were pushed away by the expanding flesh. And Isane's breasts weren't the only thing expanding.

As Issei could see, her hips, thighs, and but were also gaining more meat, meaning that his amazing sister was going from stick figure to beauty by the second.

And it was not just her assets that were growing, but also her body as Issei could see her literally growing in height as Isane went from being shorter than him to being taller but at least half a standard ruler, putting her at rather amazing 180, putting to shame the vast majority of Japanese women. And also, she was gaining muscles in her arms, and her stomach as her expanded stomach had now vanished. Replaced by a six-pack.

Issei just watched as his now rather Amazonian sister continued to transform before his eyes; he knew he should probably run, call for help, do something!

But Issei couldn't take away his eyes from Isane as she continued to change into a new person, no an entirely new being. As her skin went from normal human to an actual pink, pink coloration, and from her back, a thick pink tail emerged that slapped against the floor as it grew into its full amount. Her short brown her grew as well, going from the same style as him to a full mane of hair that went down to her back, but it did not stay brown as it shifted to a silvery-white coloration.

"Hmm," Isane moaned again as one of her hands went from her now double tits, with thick nipples to match, down to her literally pink vagina, which currently had her rather large clit poking out, which she started to stroke with his her fingers. And as she did watched the clit get longer, and with each motion, as well as thicker. And soon enough, Isane was no longer stroking a clit, but a cock.

His sister was now jerking off a genuine penis that had already surpassed his in size and was still continuing to grow, and as it did, Issei felt his cock strained against his pants. For he did have a fetish for futanari hentai. Isane was now actually hitting many of his fetishes.

"Hmm." His sister moaned as stoked her new futa cock, her brand new futanari horsecock, which had a pair of heavy balls the size of cantaloupes swinging down below that were churning with cum as she stroked the thickest and longest cock Issei had ever seen, as her hand didn't even go halfway around. "Fuck…" She cursed, and then Issei watched as the flared stallion head erupted in a geyser of cum that splattered across the garage floor, some of it even landing in his agape mouth that he swallowed in reaction.

And much to his shock, he found it tasty.

"Hmm, that was amazing," The person who may or may not be his sister spoke as she opened her eyes, Issei could see they were no longer the blue ones she had inherited from their grandfather, but instead, her eyes were red, surrounded by a sea black.

The petite human teenager turned adult demoness stretched out her body, her equine cock bobbing up and down at she did so. Her body was now that of a seductress, as she had tits the size of her head, and a curvy body that matched it.

"Isane," Issei spoke for the very first time since she had started changing. "Is it still you?"

"I am still me, Issei," She spoke. "I am still Isane, but I am also more now, something greater. I am Lilith, the First Woman."