In the showers after class

Emily stood naked in a stall, eyes closed as hot water rained down on her body from the showerhead. There was a break after second period, and she intended to take her time and properly enjoy herself. After class, she had stripped off beneath her towel and filed into the showers with the other girls, claiming a stall and drawing the privacy curtain behind her. She had gotten so worked up from the eyes on her semi-transparent shirt and tight shorts. Was it just her lack of underwear today, or had her gym clothes always been so lewd and she had just never noticed how much attention she got while wearing them?

Now, with her towel draped over the curtain rod, she allowed her legs to part as she she cautiously stroked her pussy with a finger. She ran her hands all over her wet body, groping her breasts, pinching her clit, lightly tugging on the base of her plug. She bit her lip to hold back her moans, listening as the other showers shut off one after another. Waiting until she heard the locker room door close and stay shut, room completely silent other than the sound of falling water and her own harsh breathing, she abruptly plunged two fingers inside herself. Closing her eyes in ecstasy, she bucked against her palm. Her tongue lolled out as she panted, desperately rubbing her clit. She spread her legs wider, feeling herself rapidly approaching her peak-

The curtain was ripped to the side, someone gasping loudly as a light flashed. Emily's eyes snapped open before immediately fluttering shut again as she came hard. Shaking and moaning, her legs gave out from beneath her and she sank to her knees, ass raised and cheek pressed to the wet tile. Her fingers continued to work her pussy, riding the wave of her orgasm.

"Holy shit!" she heard Faye's voice exclaim in surprise and excitement, before the light flashed again.

"Is- is that a butt plug?" asked a second voice, wavering slightly with an edge of something that Emily's blissed-out mind couldn't quite interpret.

She groaned pitifully as she shook off the end of her orgasm, burying her face in the crook of her elbow and lifting her other arm to fumble blindly with the shower handle. The water cut off. After a moment, she realized her pussy and ass were still pointed straight at the two girls who had interrupted her, and flopped down on her side to curl up in a ball of wet, quivering flesh.

"That looked intense." Emily could practically hear Faye's grin. She nudged her bare foot with a sneaker-clad toe. "So you really are some kind of exhibitionist, huh? Hey, perv, look up here."

Emily lifted her head, just in time to see the phone in Faye's hand flash as it took another picture.

Fuck!

She ducked back down, hiding her face with both hands. A whimper escaped her lips, even as the now-familiar thrill of humiliation lit her blood on fire.

She took pictures... she's gonna show everyone, my life is over...

Before she could start spiraling, the other girl spoke up again. "... Hey Faye, maybe we should ease up a bit? She looks scared..."

"I'm telling you Riley, she's totally into it! You saw her, she was cumming like crazy!"

Emily sensed someone crouching in front of her, and a hand came down to rest gently on her bare shoulder. She peeked at the kindly smiling redhead from between her fingers.

"Hey, Emily? Are you okay?” She met her eyes, almost radiating earnestness.

“… Please don’t tell anyone,” Emily managed to whisper.

“We won't, don't worry," she said.

Faye cut in, "As long as you do what we say, of course." She waggled her phone, smirking.

The other girl, Riley, shook her head and frowned. "You don't have t-"

"F-fine," she said, looking away with a scowl, "what do you want?"

The two girls turned to each other, Riley uncertainly and Faye with an I-told-you-so expression.

"Alright, here's what's gonna happen..."