Short and sweet birthday wishes for cousins Happy birthday to my bonus sibling! Happy birthday, cousin. I love you! Happy birthday to my first best friend. Nobody deserves to be celebrated more than ...

Westend61 / Getty Images Happy Birthday Wishes Birthday wishes make special days even brighter for the friends and family in your life who are important to you. Whether you're looking for a fun ...

There’s also “Cousin by blood, friends by choice,” from Darlene Shaw. We’ve got you covered if you’re looking for just the right way to wish your cousin a happy birthday.

On your birthday, today marks the beginning of a new year and the conclusion of an old one. I can’t wait to be with you through many more chapters as your cousin and your friend.

4. Wishing a happy birthday to the cousin who still thinks "adulting" is a mythical creature. May your day be as carefree and fun as the times we spent avoiding responsibilities together. 5.