It was a bitterly cold evening in January, and I'd decided to visit our local swimming pool after a hard day at the office. I'm a solicitor in a City law firm and after eight hours dictating letters and attending endless meetings, I always found the feeling of the cold water surging all around me both stimulating and relaxing.
That evening, unsurprisingly, the pool was almost empty. Like my wife and two teenage sons, most people had decided to stay in their cosy centrally heated homes than venture out into the darkness. There were perhaps five or six people swimming, plus a young male attendant sitting in a chair watching us. I swam up and down the pool, enjoying the motion of water across my body, feeling the aches of the day slowly fading away.
I stood up to rest after twenty lengths and noticed a woman in her thirties with short orange hair climbing out of the water. She was wearing a red micro-bikini and I couldn't help noticing that she had a fantastic figure. As she turned, I realised that I knew her - it was Amy, the mother of a boy who went to the same secondary school as my children. I waved to her, and she smiled and waved back. I watched her as she walked over to the deep end, stood on tiptoe with her arms raised above her head, and executed a perfect dive into the water. There was scarcely a splash.
I plunged back into the water myself, vaguely, and slightly guiltily, wondering what she would look like naked. Her bikini left little to the imagination, and even from this distance I could see the distinct mound of her pussy and the telltale dark shadows caused by her nipples. Then the sensation of the clear, flowing liquid overwhelmed these idle thoughts, and I surrendered myself to the water for another twenty lengths.
When I eventually got out, my pores tingling all over in the cold air, there was no-one else in the pool. Amy had gone, and even the attendant had disappeared. I collected my clothes and towel from the locker and went into to the men's changing rooms. There was no-one there either.
I took off my swimming trunks and discovered, to my surprise, that my penis was semi-erect. Normally, the cold water would keep me soft, despite the proximity of bare female flesh that would often be on display. I'd never really found swimming sexually exciting anyway, but tonight my cock obviously thought differently. Perhaps it was the presence of Amy...
I cupped my balls in my hand. They were as hard as rocks. I glanced at the clock on the wall - the pool was closing in a few minutes so no-one else would be arriving. I suddenly decided to do something I'd never, ever done before. I grabbed my bottle of shampoo and walked to the shower unit in the corner of the changing room. I pressing the button and a stream of searing hot water cascaded over my body, causing me to gasp with shock and pleasure. I squeezed a big dollop of shampoo onto my hand and, turning my back on the spray, I began rubbing it onto my cock, sliding my hand up and down its length and over the tip with one hand, smoothing it over and around my pubic hair and squeezing and kneading my hard balls with the other. I had never been as hard as this, all eight inches of dark veined flesh slapping solidly against my stomach. As I slipped the foreskin back from my helmet, I saw it was bright purple and glistening - I could almost see my reflection in it. Every touch of my fingers was making me shudder now.
The hot water flowed over my back and down my arms, and I began pumping at my penis, gripping it so tightly the shampoo suds spurted from my fingers every time I slid my foreskin up. I was thinking of Amy, imagining her walking up to me, loosening the top of her bikini, letting me cup her two beautiful breasts in my hands. I closed my eyes and lost myself in the moment. A warm glow began moving out from my groin as both hands worked away. I had never masturbated anywhere except my home before, and although the feeling was fantastic, I was also conscious that I should ejaculate as quickly as possible before anyone caught me.
I felt the familiar pulsing sensation in my cock of an impending orgasm and I pumped even faster. The shampoo was dribbling down my arms and legs, frothing in the water at my feet. I was about to come.
Then - a noise!
I opened my eyes and froze. A shadow was moving across the changing room wall, by the entrance to the pool. I whirled around in a panic, trying to hide my erection. My heart banged away in my chest and my breathing was fast and ragged.
"Oh - hello!" came a voice. A soft, slightly husky voice.
Amy.
I turned my head. She was standing there in her bikini, bold as brass, her eyes on the ceiling.
