Yeah, Jax had some good things in the past, but they shifted their focus to almost exclusively futa. Let us know if you do find out anything else.
Now a little more searching on my end I know it came from the Trollvid days. The earliest record I could find of it on Sankaku was August 5, 2015, which could mean it could've been first uploaded a month before or so the time it was uploaded on that site. Unfortunately people were awful at tagging sources and still are pretty bad at it.
Another source I found from scratching the dregs of google is this one which I found in the comments of Xhamster:
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. Xhamster isn't exactly the most reliable source, especially if that user doesn't read moonrune. Looking at the FC2 acc the activity goes as far back as 9 years ago so they at least existed in the timeframe this vid was made. Whether they were the original or reposter isn't certain.
BUT WAIT! It goes even deeper, because I just found this one that dates to 2014:
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. So it dates even before 2015. Definitely not the original post, given the horrendous quality and the original I remember was either from Niconico or FC2. But absolutely comes from way before the Sankaku post.
And finally the last stop, E-hentai:
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. And it seems to confirm the original uploader is Nibutani. The comments seem to confirm it as being from FC2 as well, however it's been nuked so we can't get the original source video anymore. Maybe the wayback time machine can at least give us a thumbnail from the original poster. A functioning vid seems dubious. But we now have near definitive proof of the original uploader being Nibutani. And there we have it. Scraping through dusty, decrepit memories, misattributing an author, digging through obscure porn sites, then landing on e-hentai. Not bad if you ask me.
Sorry for doubting you, Xhamster dude. That's just part of due diligence of confirming information.
BUT WE CAN'T END THE STORY THERE NOW, CAN WE? Here's an HD remake of it:
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, and it seems to be from the original author. No more having to use the wayback machine for FC2 content that doesn't exist anymore (unless you really want the genuine nostalgia). We now have a definitively version as our source, with the author's name and high res.