Check out SNSD SooYoung's cute twinning moment with her sister

The Choi Sisters/Soo Sisters are here to make your day.

Here's SooYoung twinning with SooJin.  Check out their adorable photo below and try to find the difference~

"#SisterPoliceSquad We wore what we grabbed 
but is there a need for us to be like this?"

Sooyoung's Instagram