These funny and unique birthday wishes for sister will make you both laugh! #2, 7, 9 are hysterical! See this post if you don't know what to write in a birthday card for sister or if you're looking for a funny birthday text for sister. From hilarious jokes about getting older to jokes only you two can understand. If regular dull birthday wishes for sister isn't what you are used to, then this is just what you need. Make your sister's birthday a memorable one with funny birthday messages for…
