Sister is a lifetime friend you can count on through difficult moments. A sister will always be there for you, whatever the circumstances. You have grown together, and she knows what makes you tick! Sometimes, she can drive you crazy, but she is still adorable and divine.
It's her birthday, and you want to wish her all the happiness and fun throughout her life. Make her feel special by posting her pic with some of the most beautiful sister birthday captions on Instagram that are presented below.
Pick the Best Caption for Sister's Birthday
A sister cares for you just like few other people, maybe just like your mother does! Pamper her by choosing a lovely caption for Instagram for her birthday.
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BFF means Best Friends Forever but do you know what SBFD means? It means Sister but Best Friend in Disguise. Happy birthday, #SBFD.
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Sister to sister we will always be, a couple of nuts off the family tree.
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I smile because you're my sister, I laugh because there's nothing you can do about it.
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The sisters don't have to be around you all the time, but it really becomes a great thing when they are.
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Sisters are precious than any other valuable things. I know you are my best friend and guide forever.
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Sisters are God's way of reassuring mankind that pain exists, but so do healers.
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We have shared so many magical moments of our life. We laughed and cried together and made smiles out of frowns.
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Sister is probably the most competitive relationship within the family, but once the sisters are grown, it becomes the strongest relationship.
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My sister and I are so close that we finish each other's sentences and often wonder who's memories belong to whom.
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A sister in your friend will come and go but a friend in a sister will always remain.
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Sometimes being a sister is even better than being a princess.
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Sisters are the ones you can get mad at only for a short period because you have important stuff to tell them.
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In the cookies of life, sisters are the chocolate chips.
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Sisters are very similar to best friends. Often you never know that they are keeping a close and caring eye on you so that nothing can bother your happiness.
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Neither of us is perfect but our imperfections make us the cute siblings that we are.
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You don't get older, you level up.
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I'm sending your selfie to NASA because you're a star.
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Move over, coffee, my sister's birthday is for champagne.
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Love is beautiful, sisterhood is better.
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"We acquire friends and we make enemies, but our sisters come with the territory." – Evelyn Loeb.
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"I'm a spark and you're a boom." – Troye Sivan.
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"We hang out, we help one another, we tell one another our worst fears and biggest secrets, and then just like real sisters, we listen and don't judge." – Adriana Trigiani.
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"Having a sister is like having a best friend you can't get rid of. You know whatever you do, they'll still be there." – Amy Li.
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"A sister can be someone who is both ourselves and very much not ourselves. A special kind of double." – Tony Morrison.
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"A sister is a little bit of childhood that can never be lost." – Marion Garretty.
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"When sisters stand shoulder to shoulder, who stands a chance against us." – Pam Brown.
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"We'll always fight, but we'll always make up as well. That's what sisters do: we argue, we point out each other's frailties, mistakes, and bad judgment, we flash the insecurities we've had since childhood, and then we come back together. Until the next time." – Lisa See.
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"There can be no situation in life in which the conversation of my dear sister will not administer some comfort to me. Happy Birthday, Sis." – Mary Montagu.
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"You may be as different as the sun and the moon, but the same blood flows through both your hearts. You need her, as she needs you." – George R.R. Martin.
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"A sister is a little bit of childhood that can never be lost." – Marion C. Garretty.
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"A sister is like yourself in a different movie, a movie that stars you in a different life." – Deborah Tannen.
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"Sisters function as safety nets in a chaotic world simply by being there for each other." – Carol Saline.
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"But the love of sisters needs no words. It does not depend on memories, or mementos, or proof. It runs as deep as a heartbeat. It is as ever-present as a pulse." – Lisa Wingate.
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"For there is no friend like a sister in the calm or stormy weather. To cheer one on the tedious way, to fetch one if one goes astray, to lift one if one totters down, to strengthen whilst one stands." – Christina Rossetti.
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"You may be as different as the sun and the moon, but the same blood flows through both your hearts. You need her, as she needs you." – George R.R. Martin.
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"A sister is a gift to the heart, a friend to the spirit, a golden thread to the meaning of life." – Isadora James.
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"The best thing about having a sister was that I always had a friend." – Cali Rae Turner.
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"Nobody fights you like your own sister. Nobody else knows the most vulnerable parts of you and will aim for them without mercy." – Jojo Moyes.
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"Your sister knows everything to say to piss you off. But sisters tend to be each other's biggest champion and also their hardest critics." – Erin Foster.
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"An older sister is a friend and defender – a listener, conspirator, a counselor, and a sharer of delights. And sorrows too." – Pam Brown.
Conclusion
Your sister will always be there to cheer you up when you are downtrodden. She will motivate you to dust yourself up and carry on with your life. She is your confidante who knows your dirty secrets but chooses to stand up for you. A suitable and lovely sister's birthday caption for Instagram can let you closer to her!