3rd Wheelers, Swingers, Open Relationships, Etc.......Share your experiences, good or bad. Who initiated? Success rate? Repeats/regulars? Swinger clubs? Fatal Attractions?

Now a days monogamy, to some, is the most difficult thing in the world. To others, there is not other way to be in a relationship. Are you currently in an open relationship or have ever been in one? Females, perhaps just adding a lady into the mix? Males, perhaps just allowing your girl a side...