The Japanese live to be among the oldest people in the world because their diet consists primarily of fish and rice and other healthy things that fat Americans who die prematurely don't eat enough of, but folks in Japan aren't taking advantage of their lengthy lifespans in the bedroom: according to the World Health Organization, one in four married couples in Japan failed to make love in the previous year, while 38% of couples in their 50s aren't having sex at all. It's not that they're not interested in sex, though. Quite the opposite! Time magazine notes that Japanese demand for pornography is surging, with "elder porn" one of its fastest growing genres.

The most popular series, staring a 74-year-old who goes by Shigeo Tokuda (not his real name; he says he doesn't want his granddaughter finding out about his "pensioner job," though Time puts a DVD box with Tokuda on the cover in the story. Looks like he may have some awkward explaining to do!), is about a "a tactful elderly gentleman who instructs women of different ages in the erotic arts." Other popular titles include Maniac Training of Lolitas and Forbidden Elderly Care. "A relationship between wife and an old father-in-law has enough twist to create an atmosphere of mystery and captivate viewers' hearts," explains a rep for a porn company that produces a line of wrinkle porn. Somehow, we don't think this particular Japanese product would do well in the exports market.

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