This happened back in June 2019. I am the only man Sally has ever been with. Sally is 5foot 4inches tall, carrying a bit of extra weight in a few places, but has a magnificent pair of 46-inch tits. We have been on many holidays, where she only goes topless. I have been on at her for many years to go totally naked, when we have been on nudist beaches around the world, but she has always kept her bikini bottom on. Well June 2019 things changed. We were on holiday in Fuengirola on the Costa del Sol. We had been to the nudist beach at Cabopino a few times before. This time we went and got a nice place in the dunes just of the main beach. We ended up between two couples, who were totally naked. I stripped off and Sally stripped leaving her bikini bottom off. I told her no one would see her if she was naked, but she refused to remove them.

 We lay in the sun for about an hour, when we could hear some sexual sounds coming from one of the dune next to us. I sat up and saw the couple to our left fucking. I told Sally and she sat up and we both watched them. After about five minutes we saw that the couple to our right were playing with each other. She was wanking him as he played with her tits. I could see that Sally was aroused as her nipples hand swollen. We continued watching the couple fuck, when a couple blokes made their way to the edge of their dune. Both were naked and had erections. The bloke fucking the woman beckoned them closer. They wasted no time in joining the couple. The bloke gestured to them to offer their pricks to his woman’s mouth. She took one in her mouth and wanked the other one. The bloke fucking her pulled out and wanked his prick and came over her stomach. She then indicated to the two blokes to wank oner her tits. As they wanked, one fingered her pussy and the other played with a tit. They both came, in bursts over her tits. While this was going on I felt Sally’s hand start to wank my erect prick. The couple to our right were now in a 69 position, pleasuring each other. Sally then removed her bikini bottom and told me to rub her clit. She shuddered as she came within two minutes. We left the beach later and went back to our hotel and fucked on the balcony before going out and then fucked when we got back.

The next day, very early we went back to the same dune. It was very quiet. This time Sally stripped completely, which gave me a semi erection seeing her naked in the sun. As there were very few people about, we stood up and put sun tan lotion on each other. I got a semi hard prick as she paid attention to my prick and balls. We lay in the sun and about half an hour later she started to wank me.  I was rock hard with excitement. I sat up and kneeled beside her. I started to rub her clit and play with her swollen nipples. She was a changed woman. She did not stop me playing with in the open. I then decided to fuck her and got between her legs. I entered her and fucked her. As I was fucking her, suddenly a bloke appeared from nowhere. He was naked and was wanking his prick as he stood watching us. I told Sally and she looked over at the bloke. She then told me to fuck her from behind. A position I like as I like to grab her big tits as I fuck her. I was fucking her, when the bloke entered our dune. I thought I would see how far the situation would go. I indicated to him to play with Sally’s tits. He wasted no time in doing. Hie erect prick was now level with Sally’s head. She turned her head and he slipped it into her mouth. Too much for me I came up Sally. She pulled away from the bloke and sat in front of him. He continued to play with both of her tits. She told him to kneel in front of her, between her spread legs. He went to touch her pussy, but she said no. She then took hold of his prick and wanked him, until he came over her tits. He thanked us and left. We went down to the sea and washed the spunk off Sally’s tits and she washed my spunk out of her pussy. We spoke about what had just happened. I told her I enjoyed seeing her play with another man and she said it was a new experience wanking a man in front of me.

On our last day we went back and ended up in a different dune, one slightly bigger. We stripped off and lay in the sun. It was very quiet and appeared to be no action or stray men about. We were getting ready to pack up and go, when the bloke Sally first wanked appeared. We invited him to join us. He sat next to Sally. As we spoke, he was running his hand up and down her thigh, making her spread her legs. She told him to sit in front of her and she sat up and got really close to him. He had his legs bent and she eased herself in between them, putting her legs over his. They were facing each other and very close. He then started to run both hands up and down each thigh. She took hold of his semi hard prick and rubbed him making him fully erect. He then moved one hand to her pussy and started to finger her. I could see was highly aroused. I stood up and saw there was nobody else about. He then shuffled closer to her and their bodies were touching. His erect prick was pushed up against her pussy. He took hold of both her tits and gently eased her onto her back. He then told me to get his rucksack over. He pulled out a pack of condoms and put one over his prick. I asked Sally if she wanted to fuck him and she said yes. He eased his prick into her and started to fuck her. She was making moaning sounds and put her arms over his back pulling him closer and telling him to fuck her harder. I was wanking as I watch another man fuck my wife. He then sat back and took hold of both her ankles and held her legs up and apart as he continued to fuck her. I then sat across her chest and put my prick in between her tits. She took hold of them and gave me a tit wank. I came over her face and tits as she came as the bloke shouted, he was coming. He pulled out and pulled his condom off. His prick was still erect and Sally told us all to go into the sea and wash. Both he and I took great delight in washing her tits and both fingering her pussy. I had never seen her so sexually aroused and acting like a slut. I liked it. We went back to the dune and Sally dried us off, paying attention to both our pricks and balls. We bid farewell to our friend and made our way back to the hotel. We had a great session on the balcony as we talked about her being fucked on the beach. Even though Sally fucked another man and we both enjoyed the experience, she is adamant that she will not go to a club in the UK and has said it may happen again this year when we go back to Cabopino.