My dear niece, you know just how very special you are to me and that you’ve always been my pride and joy, which is why today is such a momentous day not only for you but for me too.
Your 18th birthday today is a celebration of the wonderful woman you have grown to be, and all of your fabulous accomplishments along the way.
For my wonderful little princess of a niece on your special day, I’m hoping that all the happiness in the world blesses your sweet heart and kind soul!
Happy birthday, my dear. I have so much love for you, from the very bottom of my heart!
Seeing you become a woman today is a true highlight in my life, my beautiful niece.
I’m so proud to be your aunt and it has been a real privilege for me to watch you grow up so wonderfully. You always were a happy kid and I just hope that continues into adulthood for you too.
Happy 18th birthday, my fabulous niece! Now you’re actually old enough to do some of the things I’ve been letting you get away with for some years already!
I hope you enjoy this new age of yours and the new-found freedom and privileges that come with it!
A very happy 18th birthday to you and a warm welcome to adulthood, my dear!
I am so proud of you and the wonderful woman you’ve become, and even though you truly are a grown-up now, to me, you will always be my sweet little niece.