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It’s no surprise if similar features run in the family—genes take care of that. But “Alabama jokes” aside, how do you explain couples that look like siblings? Perhaps spending too much time together makes couples look alike, or we tend to date people physically similar to us. 

The Instagram account about the “Siblings or Dating” quiz brought to light a fantastic and super addictive siblings or dating game for bored people on social media. The account has been around since July, making 249k followers wonder whether two people are family-related or simply dating based solely on one photo. 

So, let’s play this game that might quickly become your favorite. Spoiler alert: you might be wrong most of the time. Let us know in the comments how many pics you will get right and what gave them away.

More info: Instagram

#1

Siblings Or Dating?

Two blonde women taking a selfie

DATING

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    #2

    Siblings Or Dating?

    Woman with her hand on man's neck

    DATING

    siblingsordating Report

    Jo Choto
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I would be getting a DNA test on that one...

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    #3

    Siblings Or Dating?

    Woman and man smiling

    DATING

    siblingsordating Report

    Jo Choto
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    They don't look anything like each other, apart from the colouring.

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    #4

    Siblings Or Dating?

    Woman wearing pink top next to a tattooed man

    SIBLINGS

    siblingsordating Report

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    #5

    Siblings Or Dating?

    Guy hugging a girl at the beach

    SIBLINGS

    siblingsordating Report

    Eagle Girl
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    It's like Instagram is trying to trick us

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    Why Do Some Couples Look Like Brother and Sister?

    Couples that look alike might sound quirky, but there are a few scientific reasons behind their resemblance:

    1. The mere exposure effect: We tend to choose partners with similar traits instinctively, preferring faces and features we're already familiar with, including similar physical appearance.
    2. Copycat partners: Couples naturally mirror each other's expressions and body language over time, which can make them look like they grew up together. Scientists confirm that partners influence each other's habits throughout long-term relationships, much like siblings who share a household.
    3. Love glow: Mutual happiness makes couples radiate similarly, leading us to perceive them as more alike. Psychologist Robert Zajonc's 1987 study suggested lifestyle and compatibility play a role, though clinical evidence for actual face-shifting remains thin.
    4. Perception: Even after removing external features like hairstyle, experiments show couples are still perceived as facially similar. The New York Post even coined a term for it: "doppelbangers."
    5. Personality and age: Couples that look alike are also perceived as similar in personality and age, both of which independently contribute to facial similarity.
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    Looking alike doesn't guarantee compatibility, but it's a fun twist in any love story. Real connection comes from shared values, communication, and understanding.

    #6

    Siblings Or Dating?

    Two men smiling

    DATING

    siblingsordating Report

    Jo Choto
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Do people think that just because people have similar haircuts and facial hair they look the same? They bear no resemblance to each other.

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    #7

    Siblings Or Dating?

    Man hugging woman on a boat

    SIBLINGS

    siblingsordating Report

    #8

    Siblings Or Dating?

    Woman and man taking selfie at the beach

    SIBLINGS

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    Eagle Girl
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    This is The Only one I got right so far

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    #9

    Siblings Or Dating?

    Woman and man taking photo at the bar

    SIBLINGS

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    K O
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I picked dating due to the hand placement lol

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    #10

    Siblings Or Dating?

    Man and woman taking selfie in front of a building

    DATING

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    #11

    Siblings Or Dating?

    Two women taking a selfie

    DATING

    Report

    #12

    Siblings Or Dating?

    Man and woman wearing hats at the beach

    SIBLINGS

    siblingsordating Report

    PjandBolt
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    She kinda looks like Phillipa Soo!

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    #13

    Siblings Or Dating?

    Man and woman hugging at the beach

    SIBLINGS

    Report

    PANDAS
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    yall, i've seen so many comments grossed out by the siblings, like, ITS NORMAL FOR SIBLINGS TO HUG!!

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    #14

    Siblings Or Dating?

    Man and woman smiling

    DATING

    siblingsordating Report

    #15

    Siblings Or Dating?

    Man and woman on the air balloon

    DATING

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    Never miss a story that brings joy to the world. Follow on Google News

    #16

    Siblings Or Dating?

    Woman and man with their hands in the pockets

    DATING

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    #17

    Siblings Or Dating?

    Man wearing blue shirt, woman smiling

    SIBLINGS

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    M O'Connell
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    That explains his look of "not wanting to be there"

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    #18

    Siblings Or Dating?

    Man hugging woman wearing academic robe

    SIBLINGS

    siblingsordating Report

    #19

    Siblings Or Dating?

    Two men holding grey cat

    SIBLINGS

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    #20

    Siblings Or Dating?

    Woman holding a beer, man sitting at the chair

    DATING

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    #21

    Siblings Or Dating?

    Man and woman wearing glasses

    DATING

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    #22

    Siblings Or Dating?

    Man and woman with green eyes

    DATING

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    #23

    Siblings Or Dating?

    Man wearing a green hat, woman wearing green top

    DATING

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    Clearly sunny
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    WHY!!! Do they always look alike?!?!?

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    #24

    Siblings Or Dating?

    Woman and man smiling

    DATING

    Report

    EmiC _21
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    i am speechless. and feel stupid. and confused

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    #25

    Siblings Or Dating?

    Two men smiling

    DATING

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    E Menendez
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Huh, I really thought they looked like big and little brother.

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    #26

    Siblings Or Dating?

    Woman hugging man's arm

    SIBLINGS

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    #27

    Siblings Or Dating?

    Man and woman holding a cigarette

    DATING

    Report

    #28

    Siblings Or Dating?

    Two men on the patio, holding flowers

    SIBLINGS

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    VesSun
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    So colorful and stylish siblings, love it!

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    #29

    Siblings Or Dating?

    Man and woman smiling at the concert

    SIBLINGS

    siblingsordating Report

    HempFairy
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    From the way the guy is so strongly flexing his arm, for one second there i though it was a date.

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    #30

    Siblings Or Dating?

    Man and woman smiling at the beach

    SIBLINGS

    Report

    Purr·maid
    Community Member
    5 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I guess just start guessing the opposite of your first impression.

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