It's more or less.., just a very close & open friendship with someone from the opposite sex.., you're so close with eachother.., and so comfortable and open with eachother.., that in addition to all the other things you do as friends.., you can also have sex with eachother.., I don't feel there's anything wrong or awkward about it.., or anything wrong with it.., as long as everyone is honest..

It's great though.., some of the best sex you'll ever have.., is with your FWB.., seriously.., only because of the kind of relationship you both have.., it's just casual.., relaxing.., friendly.., you could be watching a movie.., giving her a massage.., and all of a sudden.., things will lead to sex.., and it's great.., it's like the kind of sexual lust/passion you see in the movies.., but never really have with someone you're dating or in a relationship with.., and it's not just for one-night..

So.., don't think about things as limited to "one-night stands" or "open relationships".., FWB is like taking your friendship to a whole new level.., it's a different kind of sexual energy.., not with a romantic interest.., but with a really good and close friend.., there's just a different kind of chemistry going on