I am divided...
In one sense, I think it's great for two adults to engage in mutually consensual sexual relations. On the other hand, I am conflicted, because I have seen the connection that FWB initiates between two entities, and unless one is centered and well grounded, the experience can cause a great deal of upset in one or both of the lives of the respective parties involved. That being said; I think it's perfectly acceptable for two unmarried (or married) adults to have a monogamous sexual relationship with one another, but multiple partners is ill-advised unless one is mature enough to accept the overall ramifications of such relationships.
In one sense, I think it's great for two adults to engage in mutually consensual sexual relations. On the other hand, I am conflicted, because I have seen the connection that FWB initiates between two entities, and unless one is centered and well grounded, the experience can cause a great deal of upset in one or both of the lives of the respective parties involved. That being said; I think it's perfectly acceptable for two unmarried (or married) adults to have a monogamous sexual relationship with one another, but multiple partners is ill-advised unless one is mature enough to accept the overall ramifications of such relationships.