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World Champion Masturbator, Masanobu Sato, Expands On His Favorite Hobby (VIDEO, NSFW)

First Posted: 12/21/11 05:51 PM ET Updated: 12/22/11 12:43 PM ET

WARNING: Some links contain pictures of explicit, NSFW content.

World champion masturbator Masanobu Sato isn't shy.

He's pleasured himself in front of crowds at San Francisco's annual Masturbate-a-thon, and has even talked to the press about his handy, award-winning techniques.

But now the Japanese sex toy representative and his girlfriend are opening up about one of Sato's favorite pastimes for an online series on masturbation produced by Metropolis. (Watch video above.)

The two-time champion begins masturbating for two hours every morning as his girlfriend goes about her daily routine.

But the woman isn't phased by Sato's actions, and sometimes she even helps out by timing his performances.

"He puts a lot of effort in it, and I just have my own hobbies," she explains in the video clip.

In 2009, Sato broke his own record by masturbating for an impressive 9 hours and 58 minutes at the Masturbate-a-thon, the San Francisco Weekly reports. His previous record was 9 hours and 33 minutes.

But self-gratification isn't all fun and games. Apparently, there's some actual training involved when preparing to go the distance.

"I swam twice a week and gained about 5 kgs in muscle," he told the San Francisco Weekly in an email. "That helped me a lot, too, in terms of stamina."

The Masturbate-a-thon is an annual affair sponsored by the Center for Sex and Culture in San Francisco, where events are held in a place appropriately titled the "masturbatorium."

If a man is taking part in a competition, he must stay aroused without ejaculating for as long as possible, a 2010 article in the San Fransisco Weekly explains. At times, the event attracts more males than females, which can be a turn off for some participants.

For more on Sato's story, watch the video report by Metropolis embedded above.

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WARNING: Some links contain pictures of explicit, NSFW content. World champion masturbator Masanobu Sato isn't shy. He's pleasured himself in front of crowds at San Francisco's annual Masturbat...
WARNING: Some links contain pictures of explicit, NSFW content. World champion masturbator Masanobu Sato isn't shy. He's pleasured himself in front of crowds at San Francisco's annual Masturbat...
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01:05 AM on 02/22/2013
9 hours and world champion?HAHAHAH!Thats a quicky for me!I masturbate for dayw or weeks falling asleep for lil wakie up and continue till i fall into extasy!Now thatw WORLD CHAMPION!Here i am for anyone who wants to check me out!Ready to proove it!
12:58 AM on 02/22/2013
9 only?
04:28 AM on 09/26/2012
Ew! Just, ew!
11:41 PM on 09/25/2012
"fazed", not "phased". very disappointing
10:35 PM on 09/25/2012
after the competition, do the winner and runner up actually shake hands to show sportsmanship??
10:33 PM on 09/25/2012
9 hours?? Thats nothing.... 7 seconds FLAT!!!!
06:28 PM on 09/25/2012
Loving the inuendos in the comments section!
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ravenslvr
No point replying back, I won't read it
06:20 PM on 09/25/2012
Good gog, imagine how his mother felt while he was growing up! That poor woman. All those kleenexs and all that Jeergens. All that Jeergens!!!!
10:36 PM on 09/25/2012
That where the name came from silly. Jeergen off!!
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HUFFPOST SUPER USER
TAIsabel
Suffer no fools.
04:04 PM on 09/25/2012
A real female smells and is dirty so he prefers anime....really?! That is a catch! Her parents must be so happy and proud!
HUFFPOST SUPER USER
jadeaic
ScarySociety
03:44 PM on 09/25/2012
"He puts alot of effort it in!" That was hysterical! I'm cracking up over this one,
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HUFFPOST SUPER USER
Quarlo
11:52 AM on 09/25/2012
"If a man is taking part in a competition, he must stay aroused without ejaculating for as long as possible"

Okay, so what about females? No rules? Just sit there and squish away? so what?...requires no self control, no stress, nothing. Not impressed hehe
drdogood123
Growing up, we had assemblies, now we have lckdwns
08:55 AM on 09/25/2012
Gives a new meaning to the name Willie Wancker.
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HUFFPOST COMMUNITY MODERATOR
ming099
...the same as it ever was.....
05:33 AM on 09/25/2012
How about a BIG HAND for..........uh....err.......


..........CONGRATULATIONS!.....uh....No thanks!!!...I DON'T want to shake hands..........
07:37 PM on 09/25/2012
LMAO
04:48 AM on 09/25/2012
There IS a God………. There is,.......... There is…………I've always envied my friend who has won a few Olympic medals. (I won’t say the name)…. But finally my chance to win more medals than my friend has….. YESssssss! Question: When will this be part of the Olympics? how can i get tickets? can I bring a buddy along??? My my my.... I would , I would so watch it ............Vive Les Olympiads!!!! .........whatever!
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HUFFPOST SUPER USER
inkongirl
12:08 AM on 09/25/2012
Champion? Who knew there was a competition for something like this?