Growing up, having a sister can seem like the worst thing in the world. She got in your space, took your things, and made it her mission to annoy you. The phrases "I hate you!" and "Mooooom!" pretty much made up most of the dialogue during your interactions, and you made each other want to rip your hair out.

<a href="https://www.google.com/search?q=funny+sister+gifs&espv=2&biw=1440&bih=747&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjKq-CrzPLQAhXCuhoKHdVJDhYQ_AUIBigB#imgdii=6cXeN0UCYJYTZM%3A%3B6cXeN0UCYJYTZM%3A%3BTZ7_OoLPW8FqqM%3A&imgrc=6cXeN0UCYJYTZM%3A">https://www.google.com/search?q=funny+sister+gifs&...</a>

She stole your clothes and hoped you didn't notice even though you were both going to the same place. And you'd never admit it, but you did the exact same thing.

https://www.google.com/search?q=is+that+my+shirt&e..

But as you get older, you realize having a sister is actually pretty rad; she's practically your built-in best friend. You don't know where you'd be without her, and the Sister Perks make all the garment-stealing okay.

<a href="https://www.google.com/search?q=funny+sister+gifs&espv=2&biw=1440&bih=747&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjKq-CrzPLQAhXCuhoKHdVJDhYQ_AUIBigB#tbm=isch&q=full+house+funny+sister+gifs&imgrc=W7jS4jMpYpfZ5M%3A">https://www.google.com/search?q=funny+sister+gifs&...</a>

She's Your Go-To Party Partner

She's always there to get a little stupid and fun with you, and you know you can count on her to hold your hair back when you puke later.

<a href="https://www.google.com/search?q=funny+sister+gifs&espv=2&biw=1440&bih=747&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjKq-CrzPLQAhXCuhoKHdVJDhYQ_AUIBigB#imgdii=haafY5cjDVqBvM%3A%3BhaafY5cjDVqBvM%3A%3B6HQslOJurSGKrM%3A&imgrc=haafY5cjDVqBvM%3A">https://www.google.com/search?q=funny+sister+gifs&...</a>

She's Always There When You Need a Little Confidence Boost

Because you can't take Mom's word for it when she tells you how amazing you are because, well, she's Mom. But something about a sister's word is sacred, and 100% believable.

https://www.google.com/search?q=funny+sister+gifs&...

She's Always There to Help You Out When You're in a Tough Situation

Self-explanatory.

<a href="https://www.google.com/search?q=toilet+paper+door&espv=2&biw=1440&bih=703&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjD7OiW0PLQAhXFCBoKHSl1ABQQ_AUIBygC#tbm=isch&q=asking+your+sister+to+bring+you+toilet+paper&imgrc=V0T98WIdtVN8-M%3A">https://www.google.com/search?q=toilet+paper+door&...</a>

When You're With Her, There's Absolutely no Judgement

You can ask something stupid like "why do they call hamburgers hamburgers if they're not made from pork?" and instead of judging you, she'll whip out her phone and Google it (true story). And, you know, she has the same sick dance moves and won't judge if you decide to show them off.

<a href="http://giphy.com/gifs/sistersmovie-tina-fey-sisters-movie-xTk9ZHdwzaKXJ15LSE">http://giphy.com/gifs/sistersmovie-tina-fey-sister..</a><a href="http://giphy.com/gifs/hqXPuMOPZ2C6k">http://giphy.com/gifs/hqXPuMOPZ2C6k</a>

You Know That no Matter What She's Always Gonna be Your Go-To Person

<a href="https://www.tumblr.com/search/sisters">https://www.tumblr.com/search/sisters</a>

Basically, just remember that your sister is gonna be the one that stays when everyone else leaves (and not only because she has no other choice). And, you know, she knows all your embarrassing secrets, too, so it's probably best to stay on her good side.