We used to have a group on here that was 3 couples and a dude. So it does happen.
We also used to have a woman on here that lived in a poly house with the number ranging from 5 to 10 people at anytime. Fairly transient.
I wonder how many larger groups have people loving every division. Most seem to be more connected V's or w's than actual stars for example.
And is there an upper limit to the number of people that you can love?
Depends on how you believe in love. I believe there are limitations. Others don't. I romantically love two women very deeply. I would have a hard time finding space, time, energy or even love to include another. But my viewpoint on love is fairly "limited" compared other polys.