https://www.pixiv.net/en/users/318124

Now youre thinking with portals.

Base +8, kikimaru024 +20, eRetik +6, iihinil +9, NaniChan +5, yayo78 +11, WhoBeMe +7, Arti176 +6, flyinside +6, Lovasl +5, Richard Munch +10, tiboogi +6, caveman84 +6, and 3 more...

A quality use of portals.
Now, one must ask a bigger question seeing a futa using portals to fuck herself...
Can one knock themselves up in this case?
I know in that Uno Makoto book 'Futa-Chan Character Book', the main character came about from her Mother knocking herself up.
Definitely a nice set!
Thanks SO much, kikimaru!

Base +13, kikimaru024 +20, A5544332211 +5

She can replicate many fetishes using nothing but portals. I mean for petes sake, she can even replicate twincest. Also @number1tiofan I can't see why it wouldn't be possible. If she can cum, and she has sperm, then any time she cums into her own pussy there is a chance of fertilising her eggs. Now if the question is what would the baby look like, that would be something I'm not too sure of.

Base +6, hizack123 +6, allahintahto -6

Number1TioFan, short answer: if the person can produce both viable eggs and sperm then yes, but the pregnancy will probably abort spontaneously. If not, then you'll most likely have a little fucked up mutant baby full of genetic diseases.

Long answer: This explains what happens to genes in sibling incest https://genetics.thetech.org/ask-a-geneticist/identifying-incest-dna (for selfcest, when you get to the section "Related Parents Have More in Common", just imagine that the gene pairs of both parents are the same colour). This explains why the baby will be fucked up: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3710769/

Also, I'm not sure if it's possible for an embryo to develop both ovaries and testicles. There are complicated interactions between genes and hormones that determine what kind of sex organs the fetus develops, including some abnormal ones that result in things like having a vagina and uterus but no ovaries, penis or testicles. I read some stuff about this some time ago but I forgot most of it. If you want to read more you can try starting here and following some links https://en.wikipedia.org/wiki/Gonadal_dysgenesis

Last edited on 12 January 2020, 04:15 UTC.

Base +19, Suft +10, Nyonlol +7, jlt314 +6, Harpies +7, AaTheHero +6, Entroop +6, R3lz +19, Yukionna +6

@firecat666
This is the reason that I visit e-hentai for, biology lessons.

Base +6, Suft +10, Bucmars +6, tntztstfzo +5, kouw doy +6, Nyonlol +7, jlt314 +6, Kotovsky +6, sawert42 +6, Entroop +6, Yukionna +6

proelitedota

Well, he asked a simple question but the thing is fucking complicated. Also, don't tell me you never wondered why there's a ton of shemale porn but no actual real life futanari porn. Would be great if there was but alas, if futanari exists in real life in the same way as it's portrayed in hentai, it's either extremely rare or impossible.

Base +19, Raging -7

@firecat666 It’s not scientifically impossible, per se...
it’s just that the creation of such things would require a fuckload of money, a lot of very talented geneticists and medical researchers, several decades, and research that breaks just about every known code of ethics for... what? Fetish fulfillment of some very rich pervert?
There are a lot of nonexistent things that are possible to create, but the primary reason you don’t see dedicated research into them is because there’s no point in prioritizing their creation over things such as cures for crippling genetic disorders and food that’s easier and more efficient to grow.

Unless you’re a multi-billionaire and feel like creating a real-life Umbrella Corp., then such things will never be created...
and it’s probably for the best that they stay fictional.

Base +7

牛逼哦，这脑洞太大了

Base +1, 三维崩坏 +4

@firecat666

There are plenty fake ones. ( ͡° ͜ʖ ͡°)

Base +6

最高境界自己艹自己

Base +6, flyinside +6, Gentleman bee +6, Godworkers +6, 三维崩坏 +4, ACS2SLB +6

Sylvrwolflol, that is bound to happen eventually but I think ultra-realistic virtual reality will come first. Though seeing how both are extremely complex I doubt either will come during our lifetimes...

proelitedota, you mean those japanese porn videos where they get a bunch of girls with strap-ons then put mosaics over everything so it looks like they're futa? No offense if you like them but I think they're fucking laughable

Base +19

@firecat666

http://futanaria.com/

Base +6

*Casually slips this gem into the "god-tier" folder*

Base +6, kikimaru024 +20, Entroop +6

proelitedota
Thanks but HNNNG RUBBER DONGS. I think I'll wait for ultra-realistic VR...

Base +19

脑洞大开

Base +5, Godworkers +6, 三维崩坏 +4

자신의 몸이기 때문에 꺼리낌없이. 거침없이. 자신의 성적 판타지를 마음껏 저질러 버릴수있다는 점이 꼴린다..
개꼴...

Base +4, EagleHolden +6, jwxx5704 +7

这个就涉及到我的知识盲区了

Base +5, Godworkers +6, 三维崩坏 +4, ACS2SLB +6, gao20011224 +1

这个空间感就十分流弊了

Base +4, Godworkers +6, 三维崩坏 +4, ACS2SLB +6, liszz +6

This has to be the best use of portals I have ever seen in a Hentai setting. I want to have more. I love it.

Base +6

@firecat666

feminine hermaphrodites exist, and there is some porn of them, most of it it fairly old but it does exist

Base +4, celcius_01 +15

I wonder how would this work... I mean if the dick moves forward, the ass would move forward as well right?

Base +6

这是个天才

Base +6, 三维崩坏 +4

@misakik1
I was thinking the same for pg2. It's like a dog chasing it's tail.

Base +6

This could work if one of the portals moves with the body and the other is stationary.

Base +13