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The perfect sister caption is worth a thousand words when posting on Instagram.

35 Seriously Cute Captions For Your Sister Snaps On Instagram

Borrow these captions like you and your sister borrow each other’s clothes.

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The first thing you want to do after snapping the cutest pic with your sister is post it on the 'Gram for everyone to see. The problem is you're in dire need of some cute sister captions for Instagram before you can share it with your followers. Let’s face it, there are so many wonderful things you'd like to say to express how much your sis is the peanut butter to your jelly. If it were up to you, you'd end up writing a whole novel, but you know your friends don’t have time to read all of that while scrolling through their feed. This is when something sweet and to the point, like these sister quotes for Instagram, will come in clutch.

Your sister has always been your BFF, although she's so much more than the textbook definition of a best friend. You've been side-by-side since you were kids and have gone on so many great adventures and family vacays together. You have what feels like a million inside jokes, and whenever the nostalgia hits, she's the first person you text. While you may not live under the same roof anymore, you still talk all the time in your family group chat. Whenever you do reunite next, you know the first thing on the agenda will be to snap the cutest sister selfie together to post with some sister Instagram captions.

Just like you’re so lucky to have a built-in bestie since day one, you’ve hit the jackpot when it comes to sister captions for instagram with this list. All you need to do is scroll through these 35 sister captions to find the one that perfectly matches your snap. Use something LOL-worthy like a sister pun for a goofy throwback pic of you wearing matching OOTDs as kids, or something sweet for a cherished memory. A simple caption for sister snaps that surprise you with how Insta-worthy they are is all you need to convey just how much she means to you, no other explanation needed.

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  1. "I was born with a sister by my side, so I’ve been winning at life since Day 1."
  2. "She's the Mary-Kate to my Ashley."
  3. "Our roots say we're sisters, but our hearts say we're friends."
  4. "Sisterhood is a very powerful thing."
  5. "Sisters? Nah, we're best friends."
  6. "How do some people make it through life without a sister?"
  7. "Making memories with you has always been my favorite thing to do."
  8. "Sisters like you are diamonds. They sparkle, and they truly are a girl's best friend."
  9. "A loyal sister is worth a thousand friends."
  10. "Sister and friend means the same thing to me."
  11. "You're my Nemo. If you get lost in the great, big ocean, I'll just keep swimming to find you."
  12. "Sisters share childhood memories and grown-up dreams."
  13. "My sister will understand me even if I only say half a word."
  14. "Yes, you’re my sister. Yes, you’re my best friend. And yes, I’m still going to take some of your fries."
  15. "Having a stylish sister means I can be stylish too… when I borrow her clothes."
  16. "Happiness is having a sister you can text at any time of the day, and she’ll respond right away."
  17. "BTBFF: Born together, best friends forever."
  18. "In the cookies of life, sisters are the chocolate chips."
  19. "A sister a day keeps the boredom away."
  20. "We don't need words, because we have perfected our own secret language."
  21. "Sometimes, miracles come in pairs."
  22. "My sister’s superpower is being able to read my mind just by looking at me. Take that, Avengers.”
  23. "Sister sister."
  24. "A good friend knows all of your best stories, but a sister was there to witness them."
  25. "Thank you for always having an embarrassing childhood story whenever I need a good laugh."
  26. “Yoda best sister!”
  27. “She’s not just my sister, she’s my sis-star!”
  28. “This is going to sound really cheesy, but my sister is gouda and grate. You cheddar believe it.”
  29. “Out of anyone who could have been my sister, I'm so glad it was you.”
  30. “FYI, she got half her clothes from my closet.”
  31. “Jeans almost as good as these genes.”
  32. “Sisters are supposed to fight and make up, because they are sisters. And sisters always find their way back to each other.” — Jenny Han, To All The Boys I’ve Loved Before
  33. “I could never love anyone as I love my sisters.” — Little Women
  34. “Sisters make the best friends in the world.” — Marilyn Monroe
  35. “I’m smiling because we’re sisters. I’m laughing because there’s nothing you can do about it.”

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