Down her row of stalls

Sophia squatted down in her stall with key in hand. She was still dripping wet, with little droplets running down her smooth legs and unto her feet. She placed the key down and launched it forcefully underneath the wall of her stall directly into the next one. She could hear it slide for a good while, rhytmically ticking as it slid across the grooves between the tiles. When it finally stopped, it was time to get out there.

She cautiously unlocked the door of her stall and peeped timidly around the corner into the corridor. There was nobody in there, but she could hear the showers running at the end of the hallway. The other direction, leading to the lockers, was empty too. Now was as good a chance as any! Sophia slipped into the hallway, completely naked. She instinctively covered her firm boobs with both hands as she hurried down the hallway. She could not suppress a smile as she thought about her public exposure, equally nervous and excited. However, in her haste, she had forgotten to check just how far her key had gone!

There were people already in the showers, so it would not take them very long to make their way here. Thinking quickly, Sophia dropped prone so she could look under the stalls and locate her key. She held her body just above the floor in a low plank, but in doing so rubbed one of her hard nipples against the rough tiles. Even this faint stimulation already nearly drove her wild. She was effectively lying naked on the floor, and anyone walking around the corner could not miss her. Scanning the floors of the stalls, she finally spotted her key.

That was the good news, the bad news was that the stall was occupied! Her key was lying against a towel that was placed on the floor, and she could see two hairy legs and feet standing on that towel. Whoever was in there was just putting on their underwear and seemingly had not noticed her key. How could she have been so stupid!? She should have checked for things like this beforehand!