Edited.

Horny people. Boredom. Alcohol.

Doesn't take anything more than this.

Every orgy containing mostly different people than the last will be different.

You switch when you want, or when your partner wants.

The number one rule is don't do anything to make other people feel pressured or uncomfortable in their current situation.

You can either all go at it in one big room, or retire to separate bedrooms for a slight bit of privacy. Probably woman will go around joining in, rubbing tits/cocks, whatever isn't currently in use, while men will be inclined to masturbate while watching, waiting their turn.

If everyone is open to everyone else, which should be made clear, you can just join in at will. If that hasn't been established, you should quietly but clearly ask permission before touching anyone.

After you get that permission, you can do pretty much anything you want, but just dont forget the rule, dont make anyone feel pressured. If they seem to pull away when you try anal, stop immediately.

I hereby grant the poster above me totses supreme orgy master.

I'll second that motion!

That seems to be the definitive gentlemans guide to orgies.

I'll add that I haven't been in an actual orgy, but have done a couple of things with another couple before. I am going to a party on Friday night with my wife though - 3 guys, 15 single girls, and a lot of booze. I'll be trying to start a few drinking games, I tell you now!

It's all about communication, feeling comfortable, and just having fun.

I feel sorry for girls in orgies. The guys are probably wearing rubbers, but they're not changing them from girl to girl, which means they're getting fucked (proverbially) in terms of STDs.

I prefer threesomes to orgies, not that I've done orgies, but they don't seem too much fun, unless it's me and 100 chicks. Then it's good.

I feel sorry for girls in orgies. The guys are probably wearing rubbers, but they're not changing them from girl to girl, which means they're getting fucked (proverbially) in terms of STDs.

But the guys most likely aren't all wearing condoms when they are first starting out, and then the guys are all over that. Many STDs can be passed through oral/physical contact, so unless they are all clean, they are all going to be fucked.