A few days ago, f(x)'s Krystal and SNSD's Jessica sent their New Year's greetings to their fans through SMTOWN's official Facebook page. Famous for being idol siblings, the duo released seven photos that gave some insight on how they spent their holiday. The sisters exuded a warm vibe that could only come from a close relationship, causing many netizens to smile over their love. Fans embraced the newly uploaded photos as they commented, "What beautiful siblings", "Ah, the beauty of sisterhood~", and "You two are so pretty!  This is what you call superior genes!" [gallery link="file"] Source + Photos: heraldbiz via Nate, SMTOWN Facebook