The Jung sisters have always been known for being affectionate with each other, and another instance of their closeness was recently caught on camera! An online community board shared a video of the sisters on stage for the ending of the '2011 KBS Music Festival', held on December 30th. As a custom of music shows, all of the artists gathered on stage to bid their last farewells before the program ended. Upon seeing her sister Krystal, Jessica rushed over with open arms, immediately grabbing her by the cheeks and planting kisses on her face. Although Krystal looks cool and uninterested, Jessica carries right on, reaching around for a back hug. Netizens commented, "She'll do anything for her sister," "Looks good," "Jessica really loves Krystal," and "To think there was a side like this to the ice princess." Source + Photos: Sports News 24 via Nate