This happening took place in the mid eighties, you know the time of big hair and shoulder pads and that was just me. I had met a girl destined to be my wife and we were lovers with a licence to have sex wherever and whenever we liked. This particular night we had been to see some friends and were returning to our house (yes living in sin as they called it). We were talking dirty and stroking each other's bits, distracting my driving a bit but seeing a car park beside the river which was almost empty, I veered in in the interests of public safety and parked facing a footpath running alongside the river and the tree lined car park. Nobody was about and I quickly got to business, getting my warm hands on her delightful hot body. She was also busy loosening my jeans and finding my hard on in ready to go mode. She was wearing a fabulous white dress with large flowers embroidered on it across the bust and down one side, her breasts supported by a strapless bra and thus easy to get at her bountiful breasts, such smooth and lovely shaped breasts that had me weak at the knees the first time I saw them. I had parked near but not too close to a streetlight but being a dirty bugger I wanted to see more of her so put on the interior light and continued my quest of getting her naked. It was as I moved for a better position having reclined our seats I noticed a guy coming down the path towards us. I whispered that there was someone coming. She grinned and said 'Do you want to knock the light off?' I said I was not bothered if she wasn't and he might just pass by. So we got back to more of our nocturnal fun. I must say now that this was about a year into our relationship and we had enjoyed a bit of flashing and our first threesome with another guy who we knew and that we had agreed to adventurous fun in future so it wasn't as if our acceptance of us being watched was unexpected at some time. I was getting rather excited, my breathing was heavier and the figure outside was walking round the car presumably looking for the best vantage point but politely remaining far enough away so as not to disturb us or shock us. He obviously was keen to see something special and I was happy to oblige. My hard cock was visible and she removed my jeans and pants after I had kicked off my shoes. Anyone who has done this knows exactly how ungainly it is with a steering wheel and gear stick in the most awkward places. Note to car manufacturers, can we have fold away steering wheels and recessed handbrakes and gear sticks, thanks. Back to my recollections. I am now naked from the waist down and I have her bra off and dress tugged down. I whispered that I wanted to get her dress off so she turned her back to allow me to get the zip down. Then we removed it together. Meanwhile the onlooker was getting very interested, as was I when I realised she had put on a bright green suspender belt which I ranked as one of the sexiest she had at the time. It was quite narrow but had two triangles of lacy green fabric down the side of the suspender straps. A green matching thong concealed her trimmed pubes but she looked absolutely knockout to me. It was at his point that our audience of one braved the opportunity to approach our car windows. I saw him and she saw him, his face vaguely visible in the dark, the car interior lights throwing weak candescence towards him. I told her he was watching from close by and I took her thong down to her knees. She had her eyes closed but she was breathing heavily and more importantly her cunt was very wet. The face loomed closer still and I got the thong off and tossed it over the back seat. I heard a heavy sigh from her as she lay exposed for our onlooker. I whispered that was looking at her body and could see her cunt and that she looked very beautiful and very fuckable. At that she moved over to my exposed and throbbing cock and took me in her mouth, making a meal of my meat. I lay back and observed the guy who kept ensuring he was not being seen by any other walkers out which fortunately there were none. He was now of course only able to see her back and her naked bum, which is another sexy asset she has. So he crept round to get a show of her sucking me. I had kept the engine running and the fan on so there was no misting of the windows except the back one but I wasn't concerned about that. I kept a commentary at a low husky almost whisper telling her how good it was for me and I hoped she did not mind this stranger looking at her naked body, telling her how sexy she looked for him. I said how much I wanted to lick her very wet cunt and for him to see her pussy before I licked it. We moved to accommodate this and she took a peep at him for the first time then lay back and closed her eyes again. She looked adorable, a young woman with a lovely figure (she was only twenty four), openly displaying her cunt for a stranger. It felt surreal but reality broke out as I licked her and sent her over the top. From my position I was in the footwell double up and had eyes only for her fabulous lips and my tongue diving as deep into her as I could get while in this ridiculous position. She told me he had his cock out and was wanking. That did it for me I had to fuck her and I scrambled out of my foxhole and drove straight into her, then looked to my right and saw he was furiously tugging his cock. I was lost in the moment and fucked her very hard and quickly came. It was probably merely seconds, but when I came to my senses she was breathing rapidly and still milking my cock. The guy had gone but left a trail of spunk running down the passenger window. We got out of the car to dress and had just got back in the car when four men came rolling down the footpath. From the safety of our car we put our belts on and returned to the real world laughing at our narrow escape but still highly turned on by such a fabulous experience, one of many.