f(x)'s Sulli experimented with an unusual transformation during her free time.

"This is a lip pack!!" she posted excitedly to her me2day earlier today, showing off a picture of her with weirdly bloated lips that, upon further inspection, are thankfully just a toy attachment.

Combined with the pink hoodie wrapped around her face, the overall effect seems to transform Sulli into a baby - not that she wasn't as cute as one before!

Awed fans expressed jealousy at her dramatic transformation. "I tried this too," said one particularly struck viewer while another quipped, "If I had tried it, I would've turned into Michol...", referring to the famous character from Dooly.

[caption id="attachment_643825" align="aligncenter" width="366" caption="Michol"][/caption]