Skip Nav
Love It. Save Your Favorites Now.
20 Things Only Sisters Understand
Gifts For Girlfriends
Gifts For Women
103 Gifts Your Best Friend Will Obsess Over in 2018
Lingerie on Amazon
Valentine's Day
These 11 Lingerie Sets Look Fancy . . . but They're All on Amazon and Under $13
Quirky Christmas Wedding
Wedding
Nothing Can Top the Look on This Groom's Face When He First Sees His Christmas Bride
How to Get a Guy Based on His Zodiac Sign
Relationships
How to Get the Guy You Want Using Astrology
Creative Valentine's Day Gifts 2019
Gifts For Women
12 Valentine's Day Gifts That Will Win You Points For Creativity
View On One Page
ADVERTISEMENT ()
Start Slideshow

Having a sister is pretty much the best thing ever — she's a built-in best friend. My little sister Maddy was born when I was 3 years old, so she's basically been around since I can remember. We laugh together, we bicker with each other, and she knows all my secrets. Even when she drives me insane, I know she will always be there for me through the good times and the bad. Maddy is a best friend for life. Here are 20 reasons why any sister is a BFF for eternity.

You share so many inside jokes.
She'll always give you the best compliments.
You both have to suffer through family events together.
She will "like" every single Facebook post and Instagram picture.
You can do gross or evil things to her and she will forgive you.
You grew up listening to the same music.
You never take her insults to heart.
She always knows what you're about to say.
She will listen to every last detail of your problems.
She always has your back.
You can raid each other's closets.
You can obnoxiously flower each other with sisterly love.
You can lie at home and shove your faces with food together.
She will always call you out when you're lying.
You both get SO excited for each other when something good happens.
You have built-in entertainment at all times.
You guys joke about what the two of you will be like when you grow old.
She's your favorite person to mess with.
She is always there for you when you have a crap day.
She knows your deepest, darkest secrets.
Start Slideshow
Join the conversation
From Our Partners
Carrie Underwood's Toddler Comments on New Baby Sibling
Toddlers
Aww, Carrie Underwood's Toddler Is So Attached to Her, He’ll Stare at Her and Say “I Just Love You”
by Alessia Santoro
Twin Sisters Give Birthday to Babies on Same Day
Siblings
These Twin Sisters Say It Was a "Miracle" They Gave Birth to Their Rainbow Babies on the Same Day
by Rebecca Brown
What the Holidays Are Like When You Have a Big Family
Siblings
15 Things That Always Happen During the Holidays When You Have a Big Family
by Sarah Muoio
Things Only Sisters Will Understand
Celebrity Interviews
10 Things Only Sisters Will Understand, Featuring Claire Foy
by Kristin Harris
Mary-Kate and Ashley Olsen Shoes at WSJ Awards November 2018
Winter Fashion
The Olsen Twins' Outfits May Be Simple, but Their Shoes Are Anything But
by Gemma Cartwright
Princess Eugenie Wears Black Dress to Casamigos Party 2018
The Royals
Princess Eugenie's Post-Wedding Look Might Seem Understated, but Then You See Her Shoes
by Karenna Meredith
I Don't Fit in With My Family
Siblings
This Is What It's Like to Be an Outsider in Your Own Family
by Sarah Muoio
Pregnancy Announcements With Siblings
Siblings
The Funny, the Cute, and the Clever: 17 Ways to Announce Your Pregnancy Using Your Older Kids
by Alessia Santoro
Ashley Olsen Tan Maxi Dress in LA 2018
Siblings
Ashley Olsen, Bohemian Queen, Just Hit the Town With Her Sis in a Nightgown
by Sarah Wasilak
5 Brothers Dance With Sister at Wedding in Honor of Late Dad
Siblings
3 Years After Their Dad Died, Bride’s 5 Brothers Surprise Her With a Song Full of His Voice Clips
by Alessia Santoro
Pippa Middleton Blue Coat Pregnant 2018
The Royals
Kate Middleton Approved of Pippa's Maternity Coat Without Even Having to Say a Word
by Sarah Wasilak
Photos of Sisters Pregnant at the Same Time
Sisters
We're Obsessed With These Sets of Sisters Showing Off Their Matching Baby Bumps
by Alessia Santoro
From Our Partners
Latest Love
We're Hiring! Write For Us About Us Advertising Contact FAQ Archives
Power Your Happy POPSUGAR at Kohl's Collection Beauty by POPSUGAR POPSUGAR Must Have POPSUGAR Insights
Terms Privacy Policy
©2019 PopSugar • POPSUGAR Entertainment & Culture
All the Latest From Ryan Reynolds