I've done my own little research about human physiology, namely reproduction (what can I say, I was keen reader in school... :wink: ). A lot of the nerves that send pleasure signals during vaginal intercourse are actually closer to the rectum than the vagina. This means that the woman can receive more pleasure Reviewom the anus. It also leaves the vagina open (pardon the pun) for extra stimulation by something else; be it another penis, a dildo or some fingers.
As a male, I can't exactly explain the appeal for it (I have done greek on a girl once and enjoyed it). For one, it can feel a lot tighter than a vagina, so there is greater Reviewiction. I also enjoyed it psychologically, don't exactly know why but I suspect it's because males have often desired a woman's arse. How many times have our eyes been transfixed by gorgeous butt? Many times, I've had the awkward moment where a woman walks by while I'm in mid-conversation with a Reviewiend and I seriously just lose the convo and start drifting into a fairyland in my head. I'm speculating here, but this fascination may lead to the desire to want to be 'inside' that butt. Perhaps vaginal doggy style - whose main attraction is to feel a woman's butt slapping against the man's thighs - is like a poor man's anal in that regard. Still doing the traditional thing (vaginal sex), but you still get to feel the woman's butt on you. Again that's just speculation, but I think it *kinda* makes sense...
By the way dippertydog, what is this prohibitive prehistoric law that you speak of? I never thought greek was illegal in Qld. If it is, then I guess I'm a law breaker... :shock:
EDIT: removed sensitive info Reviewom post...