Today, Roissy put up an interesting post on the subject of anal sex. The practice seems to be entering the mainstream. It's my personal belief that it is due to the ubiquity of porn and its influence on modern Western Culture. Coincidentally, the local medical press recently reported an increase in the rate of anal/rectal cancer amongst the under 40's. Note, the rate seems to have commenced it rise from about 1984, about the time of the home video revolution. Video, it appears, did more than just kill the radio star.
Perhaps there is a link?
Here is a table reproduced from the same study.
(Click to enlarge.)
Once again, numbers matter.