You friendly neighborhood lurker here. I just thought I needed to post something on this topic. I agree with Red that metamour love is a wonderful, rather unique thing in the poly frame. I'm gifted in that I have so many poly friends. So I get to see free love in action. No, not indiscriminate sex, just love. For multiple partners, for metamours, for your metamours and lover's children, for friends. Polyamoury may be unique that way, and I myself am so blessed.
I love you all. Even those of you I haven't met yet.