The Jung sisters have once again been praised for having the "most superior genes" in the K-Pop idol industry. On November 3rd, Krystal wrote on her me2day page, "With my sister. Haha. It's been a while since we left for work together wearing couple hats." In the attached photo, f(x)'s Krystal and SNSD's�Jessica are seen posing cozily together with matching baseball caps. Fans and netizens alike couldn't hold back their compliments of the sisters' near-perfect beauty and striking�resemblance to one another. Netizens commented, "OMG! So pretty", "Both of them are goddesses", and "I should try wearing a couple cap with my younger sibling too^^". Source + Photo: Star News via Naver