Until after she cums.

All around her now were students, eyes wide as they watched Sammy pump her pussy with vigour. As much as she was thinking about how quickly this situation had turned south, her body was in another realm of emotion.

Her pussy was on fire with desire, she couldn't stop no matter what. Sammy was frozen in fear but felt pleasure bursting throughout her body, which was heightened when the phones came out. She was powerless to stop them, but she never felt more in control, her breasts jiggled along with her body, and now, a large crowd was beginning to amass as her cries of lust were peaking.

Most of the audience was whispering, some were laughing, a lot were simply stood around with open mouths, but all had their eyes on the orgasming Sammy. And boy did she cum. Her original intention was to simply get off when no one was looking, a bit of easy pleasure just from the fact she was in a public space. But now? With her body exposed to tens of her classmates while she mindlessly fingered herself to no end? She exploded in pleasure.

Gasping, and grasping at her body. She heard shutter click after click as her embarrassment heightened, along with her arousal, and it felt like it lasted for years. After but a few moments, she collapsed against the wall, and slid to her knees, quietly mumbling the word "Stop." And hearing that reassuring noise of silence.