f(x)'s Krystal and SNSD's Jessica created some buzz with their sisterly love. On October 27th, Krystal posted the above pictures with her older sister through her me2day. In the picture, the two of them are lying on a bed behind candlelit cupcakes, making aegyo poses toward the cupcakes. In particular, fans noticed the picture of Jessica pursing her lips to give her little sister a kiss. Fans commented, "So heartwarming. They're definitely the Goddess sisters", "I'm envious of their superior genes", and "The two of you are both pretty. Definitely Jung sisters!" Krystal recently celebrated her 17th (18 in Korea) birthday on October 24th. Source: Star News via Nate Krystal's me2day