About four years ago we bought a two bed apartment at Cabopino Golf and regularly use the beach at Cabopino a 10 minute walk away. My wife Hazel is 52, about 5ft 7 with 38DD boobs. She has kept a shapely figure and has good slender legs. She keeps her pussy smooth and shaven for me. I am 60 and fairly fit. I think I have a good size prick, six inches flaccid and rising to nine inches when rock hard with a bulbous purple head. Hazel lost her virginity to me but told me she would strip to the waist for previous boyfriends to allow them to play and suck her tits. She only ever wanked them or gave a blow job, letting them come over her tits. She only ever allowed one to actual stick a finger in pussy and finger fuck her to orgasm. Though we have a great sex life, Hazel is a bit of a prude and in the four years we have gone to the nudist part of the beach at Cabopino, she has only gone topless. She has no problem with me taking her to the nude beach and me stripping off but she did not want to display her pussy in public. Last week this all changed. After a couple of days of rain the sun came out. So on Friday we went to the beach. A lot of the beach has disappeared due to storms and high tides over the winter and spring. We walked a bit further than usual past the low dunes where lots of couples tend to go. We found a nice stretch of sand about 20 foot from the sea. There were already a couple stretched out naked in the sun. We laid our towels out about 10 foot from them. I stripped off and Hazel pulled her dress off and took her bikini top off. We had only been laying there for about 20 minutes when 3 others turned up and plonked themselves down about 10 foot from us. There was one bloke and two women, all slightly older than me. They all stripped off and lay back on their towels. The bloke was on the end next to the two women. Hazel was still laying on her back and I was sitting up. I saw the bloke sit up and the woman in the middle put her left leg across his lap. He started to massage her toes and move his right hand down her leg to her pussy and started to rub it. He was playing with her pussy for about 5 minutes when I told Hazel what he was doing. She sat up and watched. We could hear the woman gently moaning when the second raised herself up and started to suck the woman’s right tit and massage the left one. After a couple of minutes the woman moaned out loud and had an orgasm. The bloke leant over and kissed her and all three lay back down. I looked a Hazel who said “That was quite horny, do you think the other woman will be pleasured” I told we will have to wait and see. The only thing they did was all go to the see and have a swim. We had been on the beach for about 4 hours when Hazel asked to go back to the apartment. We packed our towels, clothes and water in our rucksack. We started our walk back, me naked and Hazel just in her bikini bottom. As we went past the dune area I looked up and saw a woman on her back with a bloke in between her legs fucking her with a bloke kneeling at her head as she sucked him. There were about four naked blokes standing watching and wanking their pricks. I asked Hazel if she wanted to watch. To my surprise she “why not”. We clambered up the dune and stood with the others watching the women being fucked. My prick was now rock solid standing to attention. I felt a hand on my prick. It was Hazel’s and she slowly waked me. I put my hand on her bum and slipped it inside her bikini bottom. She parted her legs to allow me to slip a finger into her moist warm pussy. She then told me to wait and slipped her bikini bottom off and placed it in the rucksack. She was now standing naked with me and four blokes watching the woman being fucked and giving a blow job. I put my hand back and slipped a finger into Hazel’s pussy. A bloke about 3 foot away moved next to Hazel and asked if he could touch her. Before I could say anything Hazel said “Yes”. He felt her right tit. Massaging it and paying attention to her swollen nipple. She then to my amazement turned slightly and with her left hand took hold of his erect penis and wanked him. It only took a couple of minutes and he came in a couple of spurts, shooting his spunk a couple of feet in front onto the sand. The woman was now being fucked by a different bloke and two blokes were either side of her sucking her tits. Hazel and I both moved to right next to them all to get a good view. Hazel took hold of my prick and wanked me. I turned to face Hazel and put my hands on her shoulders and gently pushed her to her knees. She did not need to be told what I wanted and took my stiff prick into her mouth and started to suck me. She giving me a blow job on a public beach where everyone could see what she was doing. By this time another couple of naked blokes had come up to the dune. One knelt behind Hazel and fingered her pussy from behind. The second stood next to me and offered his 8 inch erect prick to Hazel. She released me from her mouth and took hold of his and licked the length of the shaft and took his balls into her mouth and then took him into her mouth and sucked him. I left hazel with the two blokes and went to the Woman on her back. The bloke had finished fucking her and moved away. I got down between her legs and licked her moist swollen pussy. A bloke lying next to her playing with one of her tits offered me a condom and indicated for me to fuck her. I looked over to Hazel who had now stood up and was her tits and pussy played with by the two blokes. She looked at me and nodded and said “let me watch you fuck another woman”. I slipped the condom on and eased myself into the woman’s warm moist cunt and slowly went in and out of cunt. I looked over and saw Hazel lining down and one the blokes putting a condom on and he started to fuck Hazel. I pumped a bit faster and came. I pulled out and stood up, thanked the woman and moved to watch some stranger fucking my wife who now on all fours being fucked doggy style and then another bloke offered her his swollen prick. She was now being spit roasted. What a fucking sight, seeing your naked wife being fucked, sucking someone and her fucking big tits swaying about in time to her cunt being pumped. The bloke came and pulled out of her just the bloke she was sucking came in her mouth and over her face. Everyone thanked each other and we walked naked to the sea and went so Hazel could wash the spunk out of her mouth and hair. I asked what had come over her to act like that. She told me watching the three earlier had aroused her so much that she wanted to suck and fuck with me in a threesome or more and hope it did not affect our relationship. I told her this was our first venture into swinging and I had no problems seeing her fuck other men... We made our way back to the apartment. Unfortunately we were leaving the next day so I do not know if Hazel would have continued her sexual awaking. She told me that we can try a club when we get back to Manchester to experiment further.