Last autumn my wife, Amy and I splashed out and bought an apartment near Cabopino Beach. We were actually only about 15 minutes walk from the beach. On exploring the beach we found it had a nudist section. Amy who is 55 but looks much younger has 40DD breasts and still has a shapely figure. When we go out she gets quite a few looks and my mates all reckon she is one fit bird and they would like to give her one. She is a bit of a prude and likes sex but only in the comfort of our own home or in the garden in summer. As I said we found the nude bit of the beach. We went there a few times but Amy would only go topless on the main part of the beach. I stripped off and enjoyed my prick being out in the sunshine. Lots of blokes would walk past us looking at Amy’s boobs. I did manage to get her on one day to strip in a small dune set up from the beach. She lay there with her smooth pussy on show. She did feel uncomfortable with all the males coming up and wanking their pricks in front of us. She did comment on how large some of them were. We did find if some of them edged close and started to touch her legs as they wanked if we made signs to go back they did. I got an erection just watching them wank over Amy’s naked body. It never went any further than that. We did have a good fuck that night before we went home in the morning. We were unable to return until last week when only I went as Amy’s mum was not well so Amy told me to go alone. On my first full day there I shaved my prick and balls just like Amy likes them as she sucks my smooth balls and lick my 8 inch erect prick, which has quite a large purple bulbous head. It was a lovely hot day, clear blue skies with glorious sunshine. At midday I wandered down to the beach. I wore just a t-shirt, shorts and flip flops. I had a rucksack with my towel, water and suntan lotion in. I made my way along the shoreline to the area of the dunes where it appeared that couples who did not mind voyeurs watching them playing or taking part if invited. I went up into the secluded dunes and found a small area which over looked a dune with a couple in. They were both lying on their backs. Both in their late 50’s early 60’s. She had blond hair, an average pair of tits and a smooth shaven pussy. She had her kegs spread and I saw a bloke lying in front of her. He was naked and wanking his prick. I spread my towel out and stripped off and watched to see if any action was going to go on. After about five minutes the woman started to play with her pussy and then the husband knelt up and started to rub her clit. This also attracted another naked male with an erection to move into the dune. I had a good view as I was only about 6 foot away. The first male then lay in between her legs and started to suck her pussy. The second bloke got real close and started to suck her right tit while the husband sucked her left tit. My prick became erect watching this live sex show and I slowly wanked my prick. The woman pulled her legs into the air and put them on the back of the bloke sucking her pussy. She was moaning and groaning with delight. She then shuddered as she came. The bloke sucking her tit then knelt up and she took hold of his prick and wanked him. The bloke in between her legs knelt up and wanked his prick and shot his spunk over her belly. She then rubbed the second bloke faster as he came in spurts over her tits. Both blokes thanked the two and left the dune as the husband poured water over the woman to wash the spunk off. He then went down to the sea and waded in up to his waist. Most probably having a pee in the sea. She stood up and turned around in the sun to dry off. She smiled at me and I nodded back. The husband came back and she lay on her back as he stood over her. She put her feet on his prick and played with it making him erect again. I just continued to watch them as I wanked my prick. The bloke then smiled at me and got between her legs and slipped his prick into her pussy and started to fuck her. I Looked around and saw no one else around. I thought I’d chance my luck and moved into the dune. He continued to fuck her as I got down and took hold of her left tit and sucked on her erect nipple. He came and withdrew and moved to the side. I got straight in between her legs and started to suck on her swollen clit. I then inserted a finger into her moist warm cunt and proceeded to finger fuck her. She started to move her body in time to my finger fuck and moan. I took my finger out and inserted my middle finger into her arse and my thumb into her cunt. She did not object and proceed to move up and down on my finger and thumb as I sucked her moist clit. She put her legs across my back to hold me tight against her pussy. I then felt her pussy and arse go tight around my finger and thumb as she came. I then knelt up and rubbed my prick against her pussy and eased it into her cunt. I did about four strokes when the husband shook his head and hand. I pulled out and she took hold of my prick and wanked me. After a couple of rubs I exploded over her body. Spunk landed on her face, tits and belly. I knelt beside her and kissed her right tit and then on the lips as I thanked her. I then walked down to the sea and went in and washed my prick. I went back to my towel and lay there for about another hour and left as they also packed up and left the beach. I went back the next few days and saw more action which I will tell later and how I confessed to the wife.