I guess I'll add that C & I started as swingers. We moved to an open relationship as we become more comfortable with loving independently of each other. My relationships tend to be longer and more intimate than C's (interestingly we were mutually envious of each other's relationships). A few months ago I met M and this relationship has become closer and more serious than any of my previous (outside of C). We're working on the logistics and how to make this work for all of us.
Me, Dino: 58 single straight male
Gidget: 51, single, straight, sub
Liza:42, married, straight
Celia: 52, single straight