Thankfully, no

Sarah inwardly breathed a sigh of relief when she heard the PE teacher get out of the gymnasium. In fact, she was so relieved that she almost forgot the hand in her pussy. And the moment she pulled it out, the orgasm hit her like an asteroid hit the dinosaurs.

The naked girl's mind went blank from the pleasure, with the only reason she wasn't screaming being that primal part of her that was still in stealth mode. Had she been more aware, she'd notice her back arching as her pussy was squirting its fluids out.

"Oh my god." She whispered to herself after a few minutes. 'That was the best orgasm I've had in my life!'

Sarah's face then instantly went beet red as she suddenly realized what she did. 'Why did I do that?! It's bad enough that I was finger myself off, but to suddenly start fisting right as a teacher walked into here?! Why am I being such an idiot?!'

After she'd calmed down, and waiting around while playing on her phone for another hour, Sarah got up from her hiding place, not being able to help but nervously glance around while covering her privates, despite knowing nobody outside of herself would be in the school at this point in time. 'Oh God, I'm really doing this, aren't I?'

With shaking hands, Sarah went through the locker room where her current predicament started, and stepped into the hallway.