100+ Birthday Wishes for Your Cousin Sister To Make Her Special Day Sweeter


My sweet cousin, you’re as dear 
and meaningful to me as any sister
and just as annoying as one, too!

May you have a fabulous birthday!
For a cousin and a sister all rolled into one
I’m wishing you a birthday that’s full of fun!

Happy birthday, my dear! 

Here’s to the many years of laughter and 
creating wonderful memories together 
that are still waiting to be written!
Sure, getting lots of gifts on your birthday
is nice but no gift will ever be as great as
simply having a wonderful cousin like me!

Happy birthday, girl!
Officially you’re my cousin, but my heart
says you’re my sister. Luckily for you, I
always listen to my heart!

Happy birthday to you, my dear. I
hope you have a truly wonderful time
celebrating your special day today!
Age might not be your friend, cousin, but I always will be! You can always rely on me for sisterly support no matter how old you get!
If you weren’t my cousin
You would be my sibling
As you truly are my sister 
Just from another mister!

Happy birthday, my dear!
Wishing a very happy birthday to my
favourite cousin today!

You’re like a little sister to me, and you
always remind me of myself when I was
your age! It’s wonderful to see that you
are such a happy kid, living an enjoyable
childhood just like I did!

I wish you many more happy years and
that your smile never fades! Sending
you lots of love and big hugs on your
special day, sweetie!
Laughing at each other or laughing
together, you’ll always be the person
I’ll most enjoy sharing life’s funniest
moments with!

Happy birthday, my sweet cousin!
Girl, each year you become more
beautiful and more fabulous than
ever before! I'm just hoping that's
something that runs in the family!

Happy birthday to you!
Wishing my sister at heart the
happiest birthday possible today!

Love you, my dearest cousin!
Happy birthday to you, my dearest cousin!

Another year older and wiser, or I suppose
just older in your case!

Don’t worry, though! You still have many
years to come where you can learn from
me and gain some of my wisdom!
Wow, another birthday already, cousin?
With all these years behind you now,
perhaps you’ll finally start to grow up soon!

I’m just kidding with you! I wouldn’t change
your fun and playful personality for the
world! Happy birthday to you!
Happy birthday to a cousin who doesn’t
get older, she simply gets more fabulous!

According to my calculations, by the time
you’re an old woman you’re going to be
truly spectacular!

I’m sending you all my love and big kisses
on your special day today!
We must be related because you have so
much style and sophistication just like me!

If people didn’t know any better or that
we’re cousins, they would definitely think
that we’re sisters!

Happy birthday, my dear! I hope you enjoy
your special day today!
Happy birthday to my sweet cousin!

I wholeheartedly believe that we have a better relationship than most sisters, probably because we didn’t live together growing up!

I’m sure I would’ve grown tired of you had we been in each other’s pockets 24/7!

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