One of the reasons why the Cathars were burnt was supposedly their love for Anal Sex. Buggery till 1994 was considered to be illegal in Britain and is still illegal in India. And yet many couples indulge in sodomy with lots of love and little help from KY jelly.

For some its a yucky thing and for others not only does it provide pleasure of a tighter sort but acts like a contraceptive ( actually for monogamous couples ).

David Flint has written a well articulated article on Anal Sex without the salacious oohs and ahhs...

Ten years ago, I couldn't have written this piece - or, more accurately, if I had, none of you would ever get to see it. Because anal sex between men and women was illegal. Not just illegal, but VERY illegal. As in, you could go to jail on a life sentence if convicted of this odious act and unfortunate enough to meet one of our less enlightened Judges. Think I'm exaggerating? Then suck on this thought for a while: during one of Brit Smut king John Lindsay's trials in the Seventies, the Judge informed the jury that the backdoor antics featured in one 8mm movie were as serious an offence as murder! Lucky for Lindsay that the jury - possibly mindful that one or two of them had also committed said offence - acquitted him.

His article discusses the popularity of anal sex in porn flicks and the pain the involved:
The one thing that most of these films have in common - no matter how stylish or depraved they might be - is their sanitised view of anal sex. Sure, it might be painful at first, but once the girl gets into it, she loves it - no way is she going to beg the stud to stop because it's just too painful to enjoy, even if he's hung like Big Willy. And no way will a guy withdraw his cock from a starlet's anus and find that it's covered in brown streaks, or - worse still - has dragged a turd out with it! Real life is less certain. Anal sex is uniquely problematic: alone amongst your choice of orifices, the arsehole is not meant as a receptacle for ANYTHING. Depending on your partner's experience and the width of your todger, it can be a remarkably painful experience for her, no matter how much you grease her up first. Ever wonder why so many women fantasise about fucking men with strap-ons? It's revenge, boys!

The article is a must read for those who have yet to experiment the 'backdoor' way.;)