She quickly grabs her key

She was already so close now. Sofia lifted up the grate and started fishing for her key that lay submerged at the bottom. It was a good thing it did not fit through the filter, or it would have been lost for good.

Finally, she was able to pinch the key between two of her fingers, before lifting it up out of the drain. She had her key back! Relieved, she stood back up, just as the group of girls rounded the corner. Sofia stood right in the middle of the hallway, fully exposed. She was not even covering her breasts, but quickly spun around and started running for her stall. The girls had seemed distracted and Sofia did not hear a reaction. Had they seen her? If so, had they realized she was naked?