The toilet cubicle door slammed shut, a lock snapped across, and he breathed a sigh of relief; alone, at least as alone as anyone could be at work in the Gents bathroom. One hand reached inside his trousers, loosened by the unfastened button and zip, boxers no impediment as fingers wrapped around the length already hard, primed by what he'd read a few minutes earlier. A light tapping noise and he tensed, listening closely, again, then a female voice whispering "Let me in before someone sees me."
A quick flick of the latch and it was open and closed in no time allowing the woman to enter. Shorter than he, much rounder, making the space within the cubicle far too confined for any real exertions. She wasted no time, flipping the lid down and sitting while he stood. Eyes lifted, watching his expression, her mouth open wide, tongue curling, just visible past the glistening lips left that way from a swipe of her wet tongue. "fuck... my... throat..." she grinned, then re-opened her mouth ready for him.
Inhaling deeply, preparing for what was to come, she watched, the tip of his cock already slick with pre-cum. "Don't make me wait." her voice, soft, husky, kept low to avoid being overheard outside the cubicle. He moved forward, feeding the length into her open hole. An inhuman groan of satisfaction leaving him as he felt that warm wet cavern for the first time.
She braced hands either side of herself, the walls of the stall keeping her upright. The only sounds made were of breathing, nostrils flaring, tongue flattened, eyes raised so she could watch every single twitch in his expressions. The further back he pushed, the more she gagged, tears forming that slid down over her face. Did she care? No, it was all part of the allure, and with that thought she lunged forward, deliberately choking on the length for a moment before pulling back.
Again and again, she'd repeat the same motion, sucking, licking, moaning softly to keep the sounds low, aware of what was likely to be overheard. Aroused beyond words, the threat of being discovered adding to this she reached between her thighs, hiked up the long skirt to reveal creamy thighs only to plunge three fingers into her slick hole.