Your sister, your lifelong gal pal, the one who could write novels about all the stuff you used to get up to… You should probably shower her with gifts for her birthday, for Christmas, or just because. She does know all of your secrets, after all. Let her know you love her (and her promise to take your wild stories to the grave) with a thoughtful gift from Silly Sentiments. We have rude sister birthday cards to make her laugh until her stomach hurts and a range of unique, cheeky funny older sister gifts that are sure to make her feel special and loved.