We are polyamorous!
There, was that so hard? It's ok for the entire world to know that I'm bi, although I think it secretly bugs you that I'm so public. But gods forbid anyone learns anything personal about you. Your parents wouldn't even know we were atheists if not for that conversation that came up when they wanted us to get married in their church.
Are you afraid our friends will start coming out of the woodwork to proposition us? I think it would be worse to chat up someone online anonymously, only to recognize them when face pics are traded.