And now, I must be off to my parents' house. My mom's youngest brother and his wife are visiting from Germany. I don't know for how long, but I'm sure for a week or two.
Doesn't that make them your aunt and uncle?
Yes, but in my family, that's how we refer to people.
Mom: Your father didn't take his medicine.
Me: Tell his daughter. She's there. Maybe she can get him to take it.
Mom: Your father's sister is coming to visit.
Me: Well, tell your sister-in-law to get him to take it.