You may argue at times and misunderstand each other, but at the end of the day, the bond you have with your sister is like no other. She's the person you go to when you need advice for an embarrassing problem, the shoulder you ugly cry on without thinking twice, and one of the only people you can be completely and unequivocally weird around. She's your sister and that means she's your friend for life.
People used the Whisper app, an anonymous confessions platform, to share touching stories about acts of sisterly love they experienced. Some shared the kind things they did for their sisters like flying across the country after she went through a tough breakup. Others shared the sacrifices their sisters made for them, such as taking care of her siblings when their parents couldn't. But each one shows us that, sometimes, the best friend you can have is your sibling.
You can read some of their confessions below. And you're going to want to call your sister afterward.