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- Happy Siblings Day 2023 to my favorite person to share childhood memories with. I cherish every moment we spent together and look forward to making new memories with you in the future.
- To the best sibling in the world, Happy Siblings Day 2023! Thank you for always being there to pick me up when I fall and for being a constant source of inspiration in my life.
- I feel lucky to have you as my sibling. You are not only my sibling, but also my best friend, my role model, and my support system. Happy Siblings Day 2023!
- Happy Siblings Day, sis. I promise to always have your back. I love you.
- Happy Sibling Day 2023, my dearest sister. Growing up with you at my side always made my life so bright and happy.
- Wishing you lots of joy and love on Siblings Day. Only a few fortunate people in the world are blessed with a sister like you. I love you.
- You are the best thing that has ever happened to me, sister. Have a wonderful Siblings Day.
- Happy Siblings Day Brother. I don’t know what I would do in this world without you.
- Thanks for being my most favorite person to annoy all day, every day. Happy national siblings day 2023.
- Happy Siblings Day to my partner in crime, my secret-keeper, and my lifelong friend. Thank you for being an amazing sibling and for always making me feel loved.
- On this special day, I want to say thank you for being the best sibling anyone could ask for. You are always there to lend a listening ear or a helping hand. Happy Siblings Day 2023!