25 Cute Sister Captions For Instagram, Because She's Everything & More

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OK, so you and your sister just snapped the cutest picture together. You can't wait to post it on the 'Gram for everyone to see, but you're in dire need of some cute sister captions for Instagram. There are so many wonderful things you'd like to say to express how much she's the PB to your J, that if it were up to you, you'd end up writing a whole novel. You know none of your friends are going to stop to read that, which is why you need something sweet and to the point.

Your sister is your BFF, although she's so much more than the textbook definition of best friend. You've been paired together since you were kids and have gone on many great adventures together over the years. You have what feels like a million inside jokes, and whenever the nostalgia hits, she's the first person you text. You may not live under the same roof anymore, but you still talk all the time in your group chat. Whenever you’re finally reunited, one of the first things on the agenda is to get a selfie together.

When the time comes to think of a quality caption, don’t let the writer’s block stop you and simply plug in any of these 25 adorable quotes about sisters. They'll be sure 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 one."

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."

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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 steal 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. "I can't keep calm, I miss my 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 for whenever I need a good laugh."

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