I am personally quite monogamous or at the very least I do not feel comfortable sharing something I consider an intimate experience with someone I do not know. So while I would consider some light play purely for fun with someone I met at a bdsm club, so far I just have not felt all that comfortable playing just for fun in public. However if I go to a few more events, I can see myself warming up to the idea as I get more comfortable with the regulars and the atmosphere.
Now on the other hand I am only a man and I do have that whole threesome complex and find it fun to fantasize about but in reality I like my intimate moments to be intimate and private.
So yeah, I am looking for one submissive that I can have a meaningful relationship with beyond sex, but if I cannot have that then I would probably be tempted toward the meaningless threesomes with teh crazies.