I've had two women, but in my case it involved a stupendous amount of organization in advance. To cut a very long story short, they were both bisexual, one with a huge amount of experience and the other with just a little, but a porn habit that guaranteed her being willing. I was seeing both separately, both understood implicitly it was non-exclusive - but they were the kind of girls who wouldn't have had it any other way if it were just up to them.

I literally said to them separately, 'how'd you like to meet another girl I'm seeing for a threeway'? Both said yes, both came round on one particular day which is now eternally burned into my memory.

I think the trick with most girls however is, as Strauss himself says in the Game, to make them feel as if it somehow 'just happened' in a way that does not, in their minds, qualify them as a slut.