f(x)'s Luna and Amber recently shared a cute selca set for their fans. On August 26th, Luna wrote on her me2day, "A daring, bare-face selca with Amber unni! A shot taken after eating steamed red bean buns! My cute koala Amber unni, let's have strength for the Jeju island performance as well." In the attached photos, the two f(x) member playfully show off their milky white skin. Amber especially cracked up fans with her pseudo-mustache from�Luna's hair. Netizens commented, "Even your bare face is pretty", "It looks the same as when you have make-up on", "Both of you are cute", and "Koala Amber unni fighting~". Soure + Photo: Star News via Nate