A bar of soap- use suds and bubbles as clothes

(chapter originally by lolwritingcom at writing.com)

Isabel turned on a shower, jumped in, and started rubbing herself with the soap. It was, needless to say, providing her with a lot less in terms of modesty than she was hoping for. There really wasn't another option that she could see, though- anything to not have to walk out of the locker room completely naked.

Hurrying, she jumped out of the shower and did what she could to bunch the suds she'd made around her privates. Mournfully, she eyed the product of her work. There were three little patches of bubbles on her nipples and crotch, and a little bit obscuring the crack of her rear. Overall, it had sounded a lot better in her head than it looked on her wet skin.

Before she could do anything else, the door opened, and Stephanie and Heather came in. "Time's up, Izzy! Ready or not, here we..." Then they saw her, dripping wet, with her hands uncomfortably at her sides lest she mess up her work, and burst out laughing. "No way! That is just too hilarious! Come on, come outside and show everyone!" Dreading having to leave the locker room, Isabel nonetheless followed them out, where...