Ahead, find the best birthday wishes for your sister that will make her feel great about spending another year by your side, and vice versa. Funny birthday wishes for sister I’m sorry I said you were ...

Happy birthday, sister. I can’t believe you wanted to marry into this wacky family. I guess you must be just as wacky as the rest of us! Best wishes on your birthday, sister-in-law.

Happy birthday to the person who always steals my clothes. For my birthday, I'd like them back! I’m sorry I called you old. I really thought you knew…Happy birthday! Happy birthday to my sister. I ...

Whether you’re looking for birthday wishes for little sister, your big sis, sister-in-law, or even your chosen sister, finding the right words to honor the day she was born will bring a smile to ...