Some of our very BEST friends are swingers, my dears!

That's the whole idea of "friends with benefits" IMHO.
Perhaps you might not want to look out for anything in particular nor
set any particular agenda on forthcoming friendships?
A good idea indeed to keep both "vanilla" friends and swinging friends
and see where things may lead that way you keep your risks to a minimum.
My input anyway.
Slutty Wife ;-*