Together Photo Cute Krystal, Jessica Helps New Single Promo f (x)

South Korean artist sisters, Jessica (Girls' Generation) and Krystal (f (x)) has just uploaded their latest selca photo. Photo "Jug Sisters" Jessica was uploaded in the official account of his Weibo.

In the photo, both are posing cute and sweet, hard to choose between Jessica and Krystal who is the most cute. Jessica was apparently uploaded a selca to help promote the new single, f (x), "Rum Pum Pum Pum".

"Rum pum pum pum, spend time with baby sis," Jessica wrote on the photo. Jessica's attention and loyalty towards his brother's career was widely praised by netizens and fans.

"Jessica is a good big brother to promote his comeback sister group," comments netter. "How can they both could look as beautiful as it is?" Other netter comments.

Meanwhile, the current f (x) is still busy schedule to promote the myriad of their second album, "Pink Tape".

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