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Watch Duplicate the study of online in 4K quality

Duplicate the study of human-human mating Nakazaki Yukitone · HD
👍 80% Liked • 01:35:09 • 4K UHD

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Type / category: creampie · performer credited: 那贺崎雪音 · video catalog ID #767 · estimated watch length ~95 minutes. Playback stays tuned for commuter LTE plus living-room WiFi.

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Scientist Nagasaki, researching human cloning, was conducting an experiment attempting to enable clones and humans to reproduce through sexual intercourse. The male subject's task was to mate with "Yukine," a clone created using his own DNA. Despite knowing it was a dangerous study, he complied and had sexual intercourse with her. Afterward, the man remained dissatisfied, claiming that "clones and humans have different skin temperatures," and to prove this, he also had sexual intercourse with Nagasaki. This is a record of the experiment involving a clone and a man.

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MEMBER TOP RATED (15)
@LowPing
Ping from Hong Kong is low and the player reacts quickly when I jump around the timeline.
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Opened eight videos from Recommended and they all buffered instantly. This network is seriously fast.
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This FC2 PPV leak is going into my permanent bookmarks, very rare to find this quality free.
@4KMonitor
On my 4K monitor the video still looks crisp. Not many free FC2 sites actually deliver true UHD.
@RepeatVisitor
Second time watching this scene on this mirror because the playback quality beats the others.
@SearchFan
The search suggestions show related FC2 IDs and Japanese tags, really easy to discover new videos.
@NoLagUser
Even when I cast this JAV video to my smart TV there is no lag or quality drop.
@ChromeUser
Running in desktop Chrome with uBlock and the player still works perfectly, no weird issues at all.
@NightOwl
Late night session and this uncensored Japanese video loaded instantly, zero buffering on my WiFi.
@UltraViewer
I watch in full screen on a 34 inch monitor and the picture stays sharp from edge to edge.
@AsiaFan
As an Asian viewer the Japanese-only tags are fine, but English title on top makes it easy to share.
@ScriptFan
The video description text is short but has the right keywords, easy to tell what the clip is about.
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I like jumping from FC2 to JAV category with one click. Nice internal linking across types.
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Funny that I landed here from Google image search, clearly this site is getting indexed well.
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Bookmarking this FC2 leak because the acting is genuinely good, not just another generic JAV clip.