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As photographers, we're always looking for quirky and exceptional feature items, so when we got a chance to shoot Japan's oldest porno star on the job, we knew we couldn't miss it.

It took six months to open the door to this underground industry before we got to meet 75-year-old Shigeo Tokuda at work this week.

On our way to the movie set, we were excited about finally getting to cover the story, but what we saw during the filming was far from what we had imagined. This was no sleek movie production with sex gods and goddesses. The movie was filmed in a small, old house just outside Tokyo that was too shabby to be called a movie set. The floor was covered with dust and dead cockroaches.

JAPAN-ELDERLY/PORN

The director - a former porno actor who contracted a permanent slipped disk after exerting himself in more than 1,000 films - said he had paid 20,000 yen ($200) to rent the place for a day. For him, this is a high risk business, as he bears all the expenses. If his movie doesn't sell, he's out of pocket.

Another weight on his mind was 75-year-old Tokuda-san’s sexual performance. Any stage-fright from the leading man would mean the director's expenses were all for nothing. For that reason, the director said he always carried a small bag of stimulants to help induce sexual drive.