Whether she’s your older sister, a sister-in-law, or your bestie who’s like a sister, there’s a birthday wish here that’s ...

Now, if only we had a cheat sheet like this for birthday greetings for all the special people in our lives. Today, it’s all about celebrating your sister. Below, find funny and thoughtful ...

These funny, heartfelt, and sentimental birthday wishes go perfectly in a card (especially when paired with a gift for your sister), in an Instagram caption, or even in an early birthday morning text.

“Wishing the Happiest birthday and a year to my big sis, LEAD HADID,” the model wrote alongside a throwback photo on Instagram Kimberlee Speakman is a digital writer at PEOPLE. She has been ...