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.