Happy birthday to the best sister in the world! You’ve always meant a lot to me and, in you, I know that I’ll always have a best friend and someone I can count on.
Your birthday is just another excuse for me to show my appreciation for you!
You certainly live up to the expectation of being a great little companion, and that’s exactly why I’m going to spoil you with lots of treats today! It’s only what my best friend deserves!