My sister (who lives just a few miles away and is very involved in my life and the life of our large extended family) is part of an open polyamorous quad. All four individuals live together in the same house and one of the women (not my sister) is expecting a baby in the fall. Once baby arrives, I know that it will (and should) become apparent to my two oldest children that these people are more than roommates.
In fact, my sister has expressed to me that it is important to her that my children recognize them as a family. The problem is that non-monogamy runs very counter to our family’s values and the values I am trying to impart to my children.
How can I explain my sister’s family to my kids in a respectful way that still reflects my belief in monogamy? — Anne