f(x)'s Sulli wisdom teeth confession is becoming an issue.

Today, Sulli posted on her me2day, "Guess what. Guess what. There's a secret. My wisdom teeth are growing" along with a self-camera photo.

In the picture, Sulli is lying on her bed, looking at the camera. Her trademark baby-like face and clear skin is eye-catching.

Internet users whos aw this commented, "Does that mean she's turning into an adult?", "Does she like someone?", etc.

Photo Credit: Sulli's Me2day