After School's Raina and Jewelry's Yewon showed off their friendship with a series of cheerful pictures. "Doing Twitter for the first time in a long while," Yewon�posted. "With my aegyo-cheek friend Raina, who I met during filming." In the images, the girls are posing with their fluffy aegyo cheeks in full force, looking like they could actually be pinched through the computer screen. Netizens agreed, saying, "Your cheeks are so cute," and "You both look somewhat similar". Meanwhile, Yewon is currently a fixed cast member of KBS's 'Invincible Youth 2'. Source: OSEN + Yewon's Twitter Tip: yeyewon