A 21st birthday is a very special and significant milestone in anybody’s life, but especially so when it’s the celebration of such a wonderful girl like you!
Many congratulations and a very happy birthday to you!
I hope that all of your hopes and aspirations come true for you at this momentous stage of your life.
I know that I’m not always perfectly on time for some things and occasionally deadlines pass me by, but I'd never be late in wishing you a happy birthday, miss!