numerous different views and perspectives have been aired and many questions asked.
As I see things, swinging requires more than two people, gender and marital status are irrelevant.
What defines 'swinging' for me is the realationship between at least two of the people in the equasion.
For example - Kat and I are a couple, we have a realationship that is more than a shagging relationship

We began swinging with single guys, at this stage the physical presence of 3 people was required - Kat, Kit and guy all in the same room.
However, add another dimension - ie Kit is away from home and shags a stranger she has met. Kat does not know about this at the time but on her return home Kit tells Kat all about it

In my view Kit is swinging when she does this.
My rationale is that she shags the stranger cos she wants to and because she knows she will share this shag with Kat on her return home and they will both get to enjoy the shag

Still with me

My point is that in order to swing only the physical presence of two people is required although the involvement of at least one emotional relatiionship between the 3 is necessary for it to be a swinging experience. Anything without at least one emotional relationship is casual sex.
