The thing that I have noticed with the poly thing is that people seem to have one or two primaries or secondaries and then everyone is free to have casual sex as long as it is discussed before hand.
That's not a given. It would not fly in my polyships. In my book poly doesn't not just automatically
include hard swinging.
Just like with your partners -- they may have a polysaturation point one 1 -- just you. Where you have a polysaturation of 2 others or whatever it is you have. You guys negotiate it this out for yourselves.
And each person in a polyship is different. This is why you have the responsibility to state your wants, needs, and limits up front.