There aren’t many people I would choose to be my cousin and there are even fewer I’d choose to be my sister. Luckily, I didn’t have to choose between either with you as I was handed the 2 in 1!
Seeing as it’s your special day, I’ll let you in on a little secret: I know your true age! Well, with us being as close as we are what else would you expect!
Many congratulations to you on this very special birthday of yours!
Of course, we all know that the big birthdays are every decade or so, but the truth is that when you get to your age every year is special and cause for celebration!
It’s no wonder people mistake us for siblings rather than cousins because I too sometimes forget that you are my cousin as you’re so much more like a sister to me!
Happy birthday, my dear! I hope your special day is as special as you are to me!
They say that you’re only ever as old as you feel and, seeing as you certainly don’t act your age, I think it’s safe to say that you’ll always be younger than you really are!