This thread is hysterical. I've dipped the toes into Polyworld - more pulled into than pushed, and it's been a joy being in 3some relationships with two women. Poly is favoured by Sydney's women that live the "I go to Bali on yoga mindfulness retreats to recharge from the harsh cocaine-kale smoothie seesaw living conditions of Bondi Beach." They talk about ethical non-monogamy, gender fluid, fluid bonding, compersion, pan, demi, and all other kind of shit that gets tiring to look up on Urban Dictionary. Yet...
I recall a Saturday afternoon. I was watching the Australian Open golf with a beer in hand on the couch. Naked. And below the TV were my two "girlfriends" continuing their romp as I was on a break due to lack of stamina / ability to handle this situation. I was completely punching above my weight. I was happy as Larry. I was sold on Poly.
But of course. Jealousy arises. It fizzles in the short (medium if you're lucky) term. And everybody is back swiping soon after.
I am no pro. But the best knowledge I can pass on about Polyworld (if you're one man of her harem) is this: Be the dog. Not the hydrant.