This happened in the summer of 1976, the year I left school and is a 100% true story. I was 16 years of age and had just started work as an office junior.
During my lunch break I wandered down to my local park to have my sandwich and a drink and keep my eye out for the scantily dressed girls that used to hang out down there, it was a very hot summer in '76. I spotted two girls about 17 or 18 years of age sitting on a blanket having a picnic. They were stunning so I parked myself onto a bench nearby and proceeded to eat my lunch. One of the girls, the brunette was lying on her stomach facing her friend with her legs up waving slowly from side to side and I would occasionlly get a glimpse of her white panties. Her friend was blonde and tanned with a large amount of cleavage showing, and they were both busy chatting away to each other blissfully unaware that I was now sporting an uncomfortable boner in my trousers.
After about 10 minutes of me enjoying these beauties in the park a blonde haired woman, probably about 35 years of age and dressed in a smart suit approached and asked if it was alright to join me on the bench for her lunch. Of course I agreed and moved along the bench. After a short while of silence she had noticed the girls having the picnic and the effect this was having on me. She then came out with a line that nearly made me choke on my sandwich. 'I can see that you looking up that pretty brunettes skirt has given you a hard on'. I stammered that I didn't think it was that obvious. To which she replied, ' It is so obvious to a woman of my experience and another thing that is obvious is that you cannot wait to get your cock out and wank yourself off to the memory of what you have seen' I couldn't believe a mature woman was talking as bluntly as this, but it only ended up making my 7' even stiffer. She then followed up with 'there is a shelter a little bit further up the park that is private, why dont we go there so you can rub your cock while I watch you?' I agreed in a flash and we were there in less than two minutes.
I had to put my hand in my pocket to keep my erection in check as we made our way to the shelter. Once there we both sat down and she said 'well are you going to show me what all the fuss is about and get it out?' I unzipped my trousers and reached in to spring out my boner.She said, ' Well that is a nice hard cock, will you wank it for me so I can see you cum?' All the time I was stroking she was using really dirty talk to me such as 'come on dirty boy, shoot your spunk' In less than two minutes I shot 5 or 6 ropes of cum into the air, some landing on her knee and shoes. She wiped the cum from her knee and licked it from her finger. She thanked me for the show and said she had to get back to work, She left as I was frantically putting my sodden cock back into my pants and before I could speak she was gone. I went back to the park every day for the rest of that summer, but I never saw her again. To this day I have been able to relive this experience many times during my wanking sessions and I still cum good, although I don't seem to shoot as far as I did in those days.
I have many more stories of my masturbatory exploits. If you enjoyed this then give me some feedback and I will print some more.