Trapped all night

The next few hours felt like days to Denise. She lay on the nasty floor not because she wanted to rest, but because she wanted to be humiliated and lying on the dirty, nasty floor was a way to be punished for not completing the task. She knew this was a fucked-up way of thinking, but her mind was in a very strange place. As she lay there her fingers slipped into her pussy and stroked her clit. She rolled onto her belly, keeping as much in contact with the floor as possible. The whole situation was so perverted it only served to push her body and mind into an entirely new level of arousal. She was writhing on the floor shoving two then three fingers deep into her pussy with one hand; the other hand was pinching her clit, harder and harder. Her fingers both pushing her closer and closer to an amazing orgasm, while the other hand punishing her clit keeping it from erupting. All the while her mind was begging for release.

Just as her body was about to explode, she heard someone at the door. She froze not knowing what to do. She needed to finish, but knowing she couldn't be caught writhing naked on the floor masturbating. When she heard, the person rattling the lock and hearing it open, she crawled into a stall, her body shaking so bad she couldn't walk.