Originally Posted by Loulabelle

In the same way that wild animals do not 'organise' orgies, but sex with multiple partners at one time takes place quite frequently, I imagine that group sex has been around for as long as human beings have.

If sex has evolved, I would argue that it has become more 'civilised' and tabboo than in previous times, certainly when you look at ancient Greek and Roman cultures and no doubt going further back in history than that. I think it is naive to assume that our sexual practises today are 'wilder' than they were thousands of years ago, as I'm pretty sure that group sex, incest, rape and underage sex are far less common practises today than once they were.