90+ Heartfelt Birthday Wishes for Your Sister-in-Law

My lovely sis in law is celebrating another birthday, and each year she gets better and better! Have a wonderful day, full of joy, love and beautiful surprises. Love you, sis!

It was always likely that I’d gain an in-law someday, but I never expected to gain a true sister. That’s what I found in you and more, though.

Happy birthday!

My dearest sis in law,
I wish you a
marvellous birthday,
and may another
year bring you tons
of joy, much love and
success, and make your
dreams come true.
Happy b-day, sis!

We don’t need a piece of paper
to tell us that we’re sisters-in-law
because deep down in my heart,
you’re the truest of sisters to me.

Happy birthday, my dear. 

You aren’t simply a wonderful friend and sister-in-law to me, you’re my true sister at heart. I am so grateful to have you in my life.

Happy birthday.

Happy birthday to my brother-in-law
who just so happens to have the
world’s best sister-in-law!

Have an awesome day today, bro!

Growing up I always wanted a sister. A best friend for life and someone I could share my deepest thoughts with. I asked God many times to bless me with a sister, but the message must have been lost somewhere along the way since I only got a brother.

The years went by and this wish completely vanished from my mind. But one happy day my brother found for himself a wonderful wife, a beautiful person, who, with time, would be a sister to me.

To my sister-in-law, my dear sister, the sister I always wished for, I wish the most amazing of birthdays!