Well, plenty of men dream about a threesome, but how many have the will and stamina to actually pull it off? Not many, I'd wager. In my younger bachelor days, on a few occasions I did have sex with two different women -- one in the morning, the other in the evening -- and it was a thrill. But my conscience bugged me. -- RR
Maybe your consciousness would not have bugged you if you could have known that neither the AM or PM chick would have cared.
That's the problem with one standard - we're all lumped together. Monogamous and non-monogamous people are thrown into the same mix and it is easy for the latter to hurt the former. That wouldn't be the case if there wasn't this social stigma against casual sex. In that case, people interested in that sort of thing would more easily find each other and there would be no need to scam monogamous people.