Yes, this is a thing.

but the question is, WHY is this a thing?

Base +6, kitsunefox21 +6, quandox +6, keradi01 +5, Mikester100 +4, Braltewrakcus +7, somebodyelse_ +10, Pareidolia +5, Someoneiknow +6, kingra1 +3, Jinwa +5, Romi the Byzantine +6, satouame +6

I saw this on the front page and I clicked entirely out of curiosity.

I don't know what I was expecting.

Base +7, kitsunefox21 +6, quandox +6, Mikester100 +4, josh1002 +6, Braltewrakcus +7, somebodyelse_ +10, Zexar +12, glib24 +5, Pareidolia +5, Bigd +5, anon_stittsville +7, kingra1 +3, and 3 more...

this is a very interesting ship, i can dig it

Base +8, Braltewrakcus +7, Romi the Byzantine -6, HabaneroJim +12

this is it
it's over

Base +5, Braltewrakcus +7, Roarin Thunder +4, kingra1 +3, iamclu +6

"What going [sic] on?"
My exact reaction.

Base +2, Braltewrakcus +7, anon_stittsville +7, kingra1 +3

"Suck it"

Gripping stuff. Can't wait for the anthology.

Base +6, kevsprk +6, Braltewrakcus +7, JackMoe +6, anon_stittsville +7, kingra1 +3, Someoneiknow +6, RARmaster +6, satouame +6

http://risukurosaki.deviantart.com/

Base +18, HabaneroJim +12

I... what?

Base +5, demeaener5 +9, Braltewrakcus +7, Zexar +12, kingra1 +3, hanaminator +9

I think the first page describes my entire life. And I say this as I'm typing only a few hours before I have to get up for work.

Base +8, kingra1 +3

uh...wat...

Base +7

I neither approve or dis-approve of this, but how the heck does someone get the thought of combining a humanized Twilight Sparkle with Spider-Man into a hentai?

Base +9, kingra1 +3, shuntensatsu +11, hanaminator +9, satouame +6

Who the hell is Peter? O.o

Base +3, Insanity4362 -2

@megamanfan
Really? you're asking why "this" is a thing, when we have things like this https://e-hentai.org/g/585424/be74b9f88a/

Y'know, there's a part of me that died when I found that, but hell it's not the worst of R34

Base +3, HabaneroJim +12

@l4chuga
The title answers that question: Peter is Peter Parker AKA Spiderman.
The internet is full of pictures of Peter Parker and Twilight Sparkle together. I don't know why. The Internet is weird, I just don't question it anymore.

Base +9

Spiderman, spiderman. Jacking off like a spider can. Shoot a web, on your breasts, catching pussy, just like Depp. Look out! Here comes Spiderman.

Base +5, HabaneroJim +12, linksbro1 +6

For those wondering why this is a thing,
http://www.fimfiction.net/story/9347/spiders-and-magic-rise-of-spidermane by maximus_reborn.
350k word Fanfiction that is a crossover between MLP and Spider-Man That alot of people consider to be really well written and has inspired more than a few bits of artwork.
Spiders and Magic Rise of Spidermane can also be found at Fanfiction.net as well

Base +6, HabaneroJim +12, RARmaster +6

Odd, that wasn't in the title when I saw this last...

Anyways, whoever came up with this random idea of making Peter Parker into a Pony and shacking him up with Twilight isn't very creative... It just doesn't make any sense at all...

Base +3

wheres this based on?
just curious

Base +5

Un doujin... americano... de MLP y Spiderman?... si hubiera sido un comic a color habria estado mucho mejor. Pero me conformo con lo que hay XP

Base +6