Apparently the keys to a successful sex party are (1) candlelight and (2) not letting the men talk to anyone. See, when a man turns up at a sex party he says to himself. "Right, I'm at a sex party. Better go get some sex". And so the three or four vaguely attractive women at the party find themselves surrounded by men, while the other women, who are probably even more interested in sex, get ignored. Therefore the rule is, you can't initiate a conversation with her; you have to wait for her to initiate conversation with you. It's a bit much, but I have a feeling most men, although deeply wounded by the inequity of it all, put up with it, because sex.
If this all sounds horribly matriarchal, I expect that's because it is. Basically, the general tenor of life for a modern heterosexual white men is that if something is fun, or could be fun, they will screw with it until it becomes just vaguely unpleasant, but not unpleasant enough to make one put one's foot down and flat out refuse to participate(e.g. the opera). So, they're making American football safe by making all the really hard hits illegal; pretty soon you'll watch it because you remember it used to be fun, but can't quite recollect why. And I gather Sarbanes-Oxley has done the same to Wall Street.
It's gone way too far, my brothers. Time to reconstitute the Patriarchy (assuming it's OK with the wife)!