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.
Happy birthday from your better-looking and totally awesome younger sibling!
It can’t have been easy growing up with me, especially as I would get away with anything! Don’t feel bad though, sis, the younger sibling is always the favorite of the family!