Wish your sister or sister-in-law a happy birthday with our list of 100 birthday messages for sisters. From sentimental to funny, choose one to write in a card.

Happy birthday to my little sister. You may steal my clothes, but I’ll allow it because I love you. I know you’re getting older, but you’re still little in my eyes.

May all your birthday wishes come true. Happy birthday! Happiest of birthdays to the peanut butter to my jelly. I love you! I’ll always be your biggest fan in the world. Happy birthday, dear sister!

May all your birthday wishes come true. Happy birthday! Happiest of birthdays to the peanut butter to my jelly. I love you! I’ll always be your biggest fan in the world. Happy birthday, dear sister!

Funny birthday messages for your sister-in-law Sure, you were [your partner’s name]’s sister first, but we all know who your favourite sibling is now. Happy birthday, sis.

Jamie Foxx delivered a powerful statement explaining how he’s eternally indebted to his sister during the celebration of her birthday on Tuesday, Aug. 1 The Oscar-winning Ray star told his 17 ...