Let's get back to this sex thing. How do you decide who sleeps with whom?
Depends on the nature of the relationship. If there is a primary couple and secondary relationships, typically the primary couple will determine a et of grounds rules for who is boinking whom, and when. In a polyfidelity group, the people work out their interpersonal dynamics themselves. And, of course, if you have a king-sized bed, who knows? Maybe you'll find that you like an extra pair of feet in you bed!
But the "who is sleeping with whom" question isn't necessarily the most interesting thing about a poly relationship. Remember, with polyamory, we're talking about more than one romantic relationship, not just more than one sex partner. The social dynamic can be very complex, and goes way beyond who's having sex with whom.
