May your day be as sweet as the cake, as colorful as the balloons, and as special as you are. Happy birthday!

Wishing you a day as beautiful and special as you are. Happy birthday, sis!

May your birthday be the beginning of a year filled with love, laughter, and all the success in the world.

On your special day, I want to thank you for being an incredible sister and a wonderful friend. Happy birthday!

May your day be filled with love, laughter, and all the things that make you happy. Happy birthday!

May your birthday be the start of a year filled with new opportunities, new adventures, and new memories. Happy birthday, sis!

To the sister who brings joy and laughter wherever she goes, may your birthday be just as joyful and full of laughter.

Sisters are the best gift in life, and you, my dear sister, are the best of them all. Happy birthday!

Happy birthday to the best sister in the world! I hope you have a fantastic day!

Happy birthday to my amazing sister and best friend. I'm so very lucky to have you in my life!

Happy birthday dear sister! With each passing year, you shine even brighter. I hope all your dreams come true!

Happy birthday to my amazing sister! May your day be filled with love, laughter, and all the happiness in the world.

You're one of the best parts of my life and I'm so lucky to call you my brother. Wishing you a wonderful birthday.

Here's to another year of being a remarkable brother and a fantastic friend. Happy birthday!

No sibling rivalry in our world! Thank you for being someone I can always count on. Happy birthday!

I can always count on you to be there for me no matter what. That's the greatest gift. Happy birthday, brother.

No one compares to my brother! Thank you for being you. Happy birthday!

You're the best brother anyone could ever have! I'm beyond blessed. Happy birthday!

On this special day, I want to remind you of how much you mean to me. You are not just a brother; you are my family, and I love you dearly. Happy birthday!