Are there any s in Poly-style relationships?

My partner and I have been together nearly 11 years. Somewhere in our 5th year we explored an open, but together, relationship with other women. Over a few year span we had a few actual "girlfriends" and maybe a one nighter at some point. It is very difficult to find other s interested in dating 2 women. Do you know any? Any comments on Poly s?? I am all ears..... How is this perceived by others??