Happy birthday to someone incredibly dear to me!
You don’t just resemble a brother-like figure to me, I truly see you as a brother through and through.
You have been there for me for as long as I can remember and I know that I can always depend on you. There’s no word or role that is more fitting than brother to describe how I see you.
Thank you for being such an amazing friend and brother to me! I want to wish you a birthday filled with all the love and happiness the world has to offer, bro!