I wanted to get something extraordinary and particularly special for a cousin who is more like a sister to me, but then I realized something: You already have all of that in me!
I hope your birthday is as wonderful and as meaningful as you are to me, my dear! Wishing a very happy birthday to you!
Having a sweet sister like you who touches the hearts of so many truly is a privilege and an honor. I’m so blessed to be related to you. Happy birthday.