I think when you are referring to family members you don't use the article. But I could be wrong!
You are right!
I see - thank you both for this
Sounds like one of the rubbish pick-up lines from flirting....
In other examples, duolingo insists on articles for family members. Weird...
You may know by now, but singular family members don't need articles while plural ones do.
I miei fratelli.
This is still useful, thank you