Happy birthday, little brother! You might be jealous of your big sister in many ways, but I’ll always be envious of the fact that you’ll always be younger than me!
As my younger brother you might get to make fun of me for being older than you, but just remember that every year my cake will always be bigger than yours because it needs to hold more candles!
A brother like you is a dream come true, if your dream is to have a super annoying brother, that is!
How is it possible that with each passing year, you find more new ways to bug me... I guess you’re getting more experienced with age, bro! Happy birthday!