f(x)'s member Amber revealed legs that she's been hiding.

On December 3, Amber posted on her Twitter, "My new friend Puppy Cat. Yes, I'm wearing shorts" along with a picture.

In the picture, Amber is holding a cute stuffed animal in her arms, making a charismatic look. Unlike the usual boyish look she wears, she is wearing pink shorts, revealing her legs.

Internet users who saw this commented, "Amber has pretty legs, I didn't know," "Please wear them more often," and "So cute."