Polyaffective or Metamours are a type of relationship between people who are emotionally close and are connected by a polyamorous relationship, but are not in a sexual or romantic relationship with each other. Some examples include:
- Two heterosexual men who are both in sexual relationships with the same woman and have co-spousal or brother-like relationships with each other.
- Two heterosexual women who are both in sexual relationships with the same man and have co-spousal or sister-like relationships with each other.
- Those in a N polyamorous relationship who are not dating one another, but still have an emotional bond.
It is unknown when the term "metamour" was coined, however the word "polyaffective" was coined by a individual studying polyamorous relationships and was posted on psychologytoday.com on August 9th of 2018.
The polyaffective flag was created by Deviantart user NonMonoPrideFlags on September 25th, 2015.