Congrats on your first nephew! That there may be more to come!
I've been an aunt for 13 years as well (as with Florence, 13!?!?! where does the time go!). 11 years ago, my second nephew got born, and 2 years ago (or was it 3?) my first niece. I also have a nephew on the in-laws side, I believe he's 9 or 10... I always forget the years...
I like nephews, especially if they live over 300km away