/u/BiggerDThanYou made some interesting comments here:

There's Chads in every kind of niche and they have different traits that make them appeal to the women in their niche, but the defining factor is that they have a very active social life and know lots of people. They make friends easily and thus also have constant access to new women to hookup with....

A big dick might be able to attract women that want a test ride, but so does good tongue game and it's not uncommon for an extended friend circle having nearly everyone hooking up with each other over the course of some years.

This led me to respond with the following:

That's interesting. Can you elaborate on that concept? You're saying that circles of friends evolve into circles of FWBs over the course of some years? (Note: Having a considerable circle of attractive FWBs generalizes to every node in the FWB-network an incredible benefit of abundant on-demand sex with attractive partners. It's extremely awesome, if it can somehow be arranged. Can it be? How? It's all about quality, though.)

If you think of sex from an economic perspective, where you want (1) abundant (2) awesome sex with (3) beautiful people with the (4) minimum investment of time/money on your part, then having an incredible FWB network seems to generalize those 4 things to every node in the network. It's like sexual paradise for every member. It's all about quality, but if it's an elite FWB-network, then everyone can get laid like a movie star without actually being one.

It can be a highly efficient sexual network, generalizing huge sexual benefits to every node in the network.

Obviously to some people it seems more like a male fantasy than a female one, but if the guys in the network are hot enough and the females have a high sex drive then the participation-benefit of incredible no-strings-attached sex with a beautiful partner whenever you want it could be desirable for the females as well.

The question is how such a network could be formed and how it could be operated.

What do you guys think about this notion?