Just back from our appatment just out side of Benidorm. A little about Jess we have been married for 20 years she is 2 years younger than me and due to the gym and swimming she still has the body of a woman in her thirties, we have been involved with swinging with couples and single guys for about the last 5 years we are both bi and have an open marriage which we are both comfortable with. One day while stolling along the beach front looking for a bar to have a nice cooling drink, I could hear a voice calling hello Mr and Mrs K........ when I turned around I could see Mark our neighbours son back in the Uk he caught up with us all excited asking what we were doing in Spain, how was his parents and sister back home. Mark has been away travelling around Europe for the last two years and says he is returning home after the summer season in Benidorm, Mark is 24 years old and his parents moved next to us about 10 years ago. Mark said he was working in a bar and invited us in for a drink, seated Mark returned with 2 nice ice cold beers and said he finished work in half hour and would we wait so he can catch up with all the news back home. While we waited for Mark to finish his work I teased Jess that he was just like the guys she always ended up in bed with at parties, Jess clipped me around the head and told me to behave and that Mark was a family friend. After a while Mark joined us he wanted to know chapter and verse of what was and has happened back home and if we were on our holiday. We explained that 9 months ago we had bought an apartment in La Calle just out side of Benidorm and we spent a lot of time in Spain now. Mark told us it was his day off tomorrow and if we would like to join him on a trip to a local beach that was not completely packed with tourists, We both said that would be nice so I explained to Mark where our apartment was and arranged for him to pick us up at 10 in the morning. With that we said our good byes and got a taxi back, in the evening we ate at a nice restaurant and a few glasses of wine then back home. In bed Jess was very horny and we had some wild sex how she likes it, after I teased her saying Mark must have really turned her on which she said I was mad and we drifted off to sleep. Next morning Mark picked us up and drove the few miles to the beach , there was was only a couple of cars in the car park and the beach was right in front of us. As we walked along the beach Mark said there were some small dunes at the end of the beach which would offer us a break from the light wind and it was quite private as well. As we walked I noticed the few people that were on the beach were all guys and some were naked not that would worry Jess or me. We arrived where Mark said was the best place to lay our towels out. Now Mark and myself was wearing shorts and tee shirts Jess had shorts and tee shirt over her bikini. I and Mark removed our tee shirts and Jess was soon down to her bikini then casually asked Mark if he would be embarrassed if she was topless Of course Mark had no complaints he even said this was a naturist beach if we wanted to go naked Jess declined but said may be later. We soaked up the sun and took regular dips in the sea it was such a change to the beaches back in and near Benidorm. On the way here a noticed a shop about a 15 min walk away and said I was going to get some much needed cold drinks the water we had with us was quite warm now so on with the tee shirt and off I went. On the way I noticed that a few more guys were now on the beach, on my way back I walked to the back of the beach near the small dunes, about 200 yards from where Jess and Mark were I noticed two guys engrossed in a 69 giving each other a bj I watched them for a few mins they were so engrossed they did not see me my cock started to get hard but I thought they did not want any one to join them so carried on my way back. As I got to Jess and Mark I was suspended to see both of them were naked Jess laying on her back and Mark on his front. Mark looked a bit agitated, but I just said I was the odd one out and removed my shorts and tee shirt my cock was still semi hard from watching the guys earlier Jess looked at me and smiled. I handed the drinks out and laid down on my front facing Jess as she was on her back I had a nice view of her shaven pussy, I just caught a glimpse of a small blob of what looked like cum between her pussy lips. As this is a bit long we will write part two if you guys are interested.