You won't believe this one, folks. I can't stop laughing at this one. I am having a hard time typing, I am laughing so hard.
A German couple who went to a fertility clinic after eight years of marriage have found out why they are still childless - they weren't having sex.

OMG too too funny ... um ... didn't they have any ... ummm ... you know, natural urges?????
I mean, 8 years..
Quite a few people calling 'bogus' on this one.
Even Snopes (Urban Legend Site) is claiming it is probably more false than true.
http://snopes.com/pregnant/nosex.asp
Yeah, I don't think I buy it. I mean, ultimately humans are still just animals, and no one has to teach an animal how to..umm.. breed.