She will put her bikini back on

After a quick dash through the hallway, she bashes back into her original stall, at least, she thinks she did. Where was her bikini? Did she enter the wrong stall? She ducked down to look under the walls of the stalls. Hers was the only one that was still wet. This must be her stall! Where did her clothes go?! She could hear people outside of her stall now. They were talking and laughing while entering stalls of their own. Meanwhile, Sophia was still stark naked, now practically surrounded, and without any clothes in reach!

She was utterly confused about where her bikini could have gone. She had only been gone for a minute. Sofia stood frozen for a while, thinking of possible explanations. A few weeks ago she had forgotten her bikini in a stall, and the cleaning lady had found it and brought it to the lost and found box behind the reception desk. That might be the only explanation now, but she could hardly walk up to the desk and ask for them back entirely naked.