I saw this story in Briefing.com this morning and thought it was a joke:
Doctors at the Lübeck campus of the University Clinic of Schleswig-Holstein (search) in northern Germany described the case in a medical bulletin, according to Ananova.com.
After eight years of marriage, the 36-year-old man and his 30-year-old wife went to the campus’ fertility clinic to figure out what was wrong.
Doctors gave them a battery of tests and were baffled — both husband and wife were healthily fertile.
Then came the important question.
“When we asked them how often they had had sex,” said a clinic spokesman, “they looked blank, and said: ‘What do you mean?'”
He went on to explain that each of the pair had been brought up extremely religiously and had never heard of the birds and the bees.
“We are not talking retarded people here,” the clinic spokesman said. The two “were simply unaware, after eight years of marriage, of the physical requirements necessary to procreate.”
The man and wife are now being given sexual therapy. The clinic is trying to find out if there are other couples in the area who could use a refresher course in human biology.
Update: Snopes seems to think this story is an urban legend and/or hoax. So maybe my original thoughts were right.