"Well," my Master said, "don't just sit there sniffing and sucking."

I spread my legs, feeling a frisson of nervous energy fizz up my legs and into my stomach as the breeze wafted gently against my inner thighs and pussy. To be exposed like this, in the middle of a public park, with footballers playing a mere one hundred yards away, was intensely exciting. I felt for my pussy, running my fingers through the sparse, trimmed bush above and sliding downwards, down onto my outer labia. I splayed my fingers, resting them gently against my lips, their light touch alone, in this heightened state in which I sat, enough to send shivers through me.

My fingers probed inwards, towards my inner lips, and stroked up and down, feeling the swell of excitement in them, sliding inwards again, inside me, to pick up the first flow of my juices. I parted my lips and shook violently as the wind blew directly against my vagina, instantly chilling my hot fluids and causing them to burn lightly and deliciously on my sensitive skin. Every nerve ending seemed alive, tingling with nervous anticipation, and each motion, each touch seemed magnified a thousand times.

"Hmm," said my Master, "hate to tell you this, but someone's coming." I stopped dead, panic zapping through me. "I didn't tell you to stop," he continued crossly. I replaced my hand on my pussy and my fingers sought out my lips again. With my index and middle finger I tickled steadily against the swollen lips, gradually sliding upwards towards my clitoris.

"He's about a hundred yards away," my Master explained. "Oldish looking chap, walking slowly. I would say you've got about a minute to come, before he catches you."

I listened with rising panic. This was too much. I couldn't possibly allow this to happen. I couldn't conceivably allow myself to be found in public, panties on my face, bringing myself off. I scratched furiously at my pussy, grazing my fingers over my clitoris, willing myself to come, but the more insistently I tried the further from fulfilment I became. The fizzing, rolling, rumbling sensations which had been building up nicely in my womb diminished, to be replaced by a general, nervous tension which was intense and powerful, but which nonetheless would not allow me to come.

I had no idea whether my Master was telling me the truth or not. I could see nothing, and I had no way of knowing whether there was someone coming or not. It was a very quiet path, but it was used nonetheless, mainly by dog walkers, and so there could easily be someone coming. I just didn't know.

After my initial panic, the tension of the moment began to filter into my mind, bringing with it a sexual energy which began, once more, to excite me. The prospect of discovery, whether it was real or not, was stimulating: how humiliating it would be to be discovered like this. On balance, I didn't believe there was anyone coming; I felt sure that my Master would draw the line at that, because it could easily spiral out of control and get us arrested. With that in mind, I began to relax somewhat, and my womb was overtaken once more with the whirring, wonderful sensations.

"You'd better hurry," my Master said. "He's only about forty yards away. And I think he's spotted you. He's looking hard in this direction." I was convinced now that my Master was bluffing. His voice was too calm, too unhurried. It was a good game, though, and I knew that it was the potential for discovery which had made me so excited. I sighed and squirmed in my seat, oblivious of my surroundings because of the panties masking my face, and given over to the sensations pulsing through me. I languidly stroked my fingers the length of my slit, sliding them inside and coating them with fluids, before returning once more to my hardened, screaming clitoris.

"Harriet, you're too late, really you are," my Master said. There was a slight catch in his voice which worried me momentarily, but I was coasting on a wave by now, and I was still certain he was bluffing me.

"Too late," he whispered, "he's here. He's staring at you."

I exploded at that moment, as my Master concocted this scene of public discovery. Although I didn't believe there was anyone there, the climax which flooded through me was predicated on the notion that I had been discovered, and the knowledge of the shame that such a situation would heap on me heightened the sensations which erupted from my womb, my pussy, my thighs, my stomach. I sucked on the crotch of my panties, pulling more and more fabric into my mouth, running my tongue across them, sucking off every last vestige of Rollo's sperm and my come.

"Afternoon," my Master said, still playing his game.

"Afternoon," a voice replied.

"This is Harriet," continued my Master, his voice level and assured. "Harriet got a bit excited watching the footballers. Say hello, Harriet."

Through the gag of my panties, I couldn't say anything, and in any case I had nothing to say. "Hmmph," I replied to the unseen stranger, more humiliated than I had ever known in my life.