I operate on the premise of relationships being built on trust and trust being driven by honesty.
So-when we came out-which was when we agreed to poly, I simply started with,
"being honest is the key to our relationship and on that note I want you to know that Maca and GG and I have a poly dynamic which means..."
And as another poster said-those who have an issue with respecting that; don't need to remain in our lives.
"Love As Thou Wilt"