Brother-in-law, I am wishing you all the happiness possible on your birthday this year! Have a great birthday!
Happy birthday to you, brother-in-law! Congratulations on surviving another year with my sister - I have a lot...
To my dear brother-in-law and my true friend, I wish nothing but the best on your special day! May your day be...
I didn’t just gain a brother-in-law in you, I gained a true brother. Happy birthday to you, bro.