You might be growing up in age, but we’re yet to see you grow up in maturity! You still have plenty of time for that though, little sis! Happy birthday!
We might have been each other’s biggest enemies at times as kids but as we’ve grown up, I’ve learnt to tolerate you much better! Happy birthday to you, sis!
As your elder sibling, it’s my duty to boss you around and act as though you’re always bothering me but seeing as today is your special day I’ll give you a break!
You shouldn’t worry about getting older, you are like a great wine as you just keep getting better and better with age, big sis. Now, let us open a bottle and just have fun.
I hope you have a fantastic birthday as you deserve!