Non-monogamists break with the societal tradition of having just one partner at a time. They will prefer to be in an open relationship. They can be called polyamorous. They don’t see sex or kink as something to keep between themselves and just one other person. They can have several partners at once, these can be just for play or more serious relationships. Every non-monogamist will have different approaches to non-monogamy.
Polyamorists will have, or look to be in, more than one relationship. These will be more than play and sex, and involve a romantic and/or intimate aspect. Swingers may be married or in a committed relationship with one person but they will indulge in kink or sexual play with other people too. Swingers can be single, it’s not all about wife-swapping. Anyone not in a monogamous relationship can be referred as polyamorous.
Non-monogamists can indulge in all kinds of fetishes and kink play. They can be Dominant, submissive or switch if they’re into BDSM. They will rarely be slaves as devotion to one Master or Mistress doesn’t come easy to them. However, they might work well in a relationship with multiple slaves and one or more Dominant partner.