How do you address your spouse’s parents? If unmarried, your SO’s parents?

I'm not married and no SO, but my mom calls my dad's parents "Mom" and "Dad". My dad calls my mom's mother "Ma". My mom's parents are divorced and I don't think my dad has really talked to my grandfather on my mom's side much and always refers to him when talking to my mom as "your father".

This is also super common with the rest of my family. And my brother just got married and his wife sometimes refers to me as her brother now. Kinda endearing. She only has a sister and has apparently wanted brothers before.

But I've also seen other families call their SO/spouse's parents by their first names or by Mr and Mrs <whatever the wife's maiden name is>.

/r/AskAnAmerican Thread