enm open marriage
while polygamy can refer to multiple people being married to each other regardless of gender, in the vast majority of cases where it occurs, it is one man to multiple women, who usually do not have the same right to marry multiple people themselves. there are no restrictions on individuals based on who they’re partnered with, and people are free to express their sexuality regardless of gender (which is why the one penis/vagina policy is so frowned upon in polyamorous …