July 13, 2012 05:43 PM EDT
Jessica Krystal sister love / Credit: Jessica Krystal sister love
Recently on an online community site, a photo capture from a past episode of SBS "Kill and Cry" was posted. Krystal had featured on this show.
In the photo Jessica can be seen utterly proud of her sister, Krystal, for being on the same ice show as Kim Yu Na. To show her affection Jessica kisses Krystal on the cheek.
Krystal doesn't get embarrassed a bit by her sister's affection. She returns the favor by kissing Jessica on the cheek, as if to show off that this is completely normal in their relationship.
Viewers who remembered the two sisters being affectionate on stage in front of other singers simply commented, "It's not even surprising anymore." They also said, "It's such a lovely sisterhood."