When I took my job with a big tech firm in northern California I met Paul, who had started just a few months earlier. We got to know each other at work, and found we had kids about the same age. As the years went by we often had family BBQs, as well as playing tennis, racquet ball, poker, going sailing, etc. together. Paul was really creative, and after about 10 years quit his job, and moved to southern Calif to start his own company, which has been really successful.
We kept in touch and I get down his way to visit once in awhile. They have a great house with a swimming pool, a separate 'pool house' which has its own kitchen and bath, that I stay in when I visit. Recently Paul bought a 30 foot fishing boat. The first time we went out on it we caught bunch of yellow tail and bass and had a great time. I had to be in their area for work a week ago and so called to see if they would be home to visit. Luckily they had no plans and said I should come and stay for the long weekend, and that we would go out fishing on Saturday morning. I got to their place late Friday afternoon, and found Joyce (Paul's wife) out by the pool in a tiny bikini. This surprised me a bit since she had always been very demure and I had never seen her in anything but a full one-piece suit before. She is very athletic, quite thin with narrow hips and small breasts - but since that is exactly what I find attractive in a woman I thought she looked really sexy. I asked about their kids and Joyce said that their daughter was enjoying college (her second year) and that their son was really looking forward to going to college next year, and that he and some friends had gone camping for the long weekend.
Paul got home pretty early and we sat and had beers by the pool, then Joyce went in to start dinner. Paul fired up the BBQ, and then went in to get the meat to grill. I decided to get another beer and headed toward the kitchen too. As I stepped around the corner into the kitchen I saw Paul standing right behind Joyce, who was at the sink facing away from me. He had untied her top and was playing with her breasts, and kissing her neck. He was also humping his cock against her ass repeatedly. Joyce gasped a bit but then said "No, we can't do it now you just have to wait until later." I snuck quietly away before they saw me, and waited a few minutes before making some noise before I walked into the kitchen. Joyce's top was tied again by then, but I could see her nipples sticking out much more than they had been before. Paul also seemed to have a bulge at the front of his swim suit, but then I guess I did too. Dinner was great, and included a bottle of excellent wine. We all went for a swim, then relaxed and talked for awhile.
About 10 pm Paul commented that he had gotten up very early that morning, and that they were going to call it a day since we had to be up really early for fishing. We said good night, and they headed up to their bedroom on the upper floor, which has a deck and looks out over the pool, and I headed for the pool house. About 15 min later I realized I had left a bag in the house, and went to get it. As I came back out on the porch under their deck I heard a very sexy moan from Joyce. Well, I guess I have a pretty strong voyeuristic streak and rather than heading back to the pool house I just stood there to see if I could hear more. Pretty soon I heard the bed squeaking, and more moaning from Joyce punctuated by the sounds of bodies slapping together. It was only about five minutes before they both climaxed and things went quiet, leaving me with a very hard cock in my pants. Although I thought about rubbing off a load, I was pretty tired and so slipped into bed and was asleep soon after my head hit the pillow.
The next morning the alarm woke me at 5 am and I sleepily rolled out and took a quick shower. I met Paul in the kitchen and was surprised to see Joyce there too since she usually didn't go out fishing with us. I grabbed a coffee, Paul took a bag of pastries for breakfast on the way, Joyce brought a thermos of coffee and we headed out. We got out on the boat and motored out quite a ways, then started throwing lines in. Before too long we had landed a couple of fish, but then things went dead. We trolled a bit, looked for kelp paddies to fish, but no more fish were to be found.
By late morning it was really hot, and wondered how long we should keep trying. I guess Paul was feeling the same way, and said "We're probably not going to catch anything more today, how about a swim?"
Joyce responded quickly "Yeah, I'm hot - that water looks good!" and immediately pulled off her T-shirt exposing the bikini top she had on the previous day, then dropped her shorts revealing the skimpy thong bottom. Seeing her like that reminded me of hearing them the night before, and I felt my cock start to swell in my pants.
"No fair" I laughed, "I didn't bring a suit."
Paul chimed in "We're out here all alone, we don't need no stinkin suits!" and proceeded to pull off his shirt, then drop his pants and boxers with them. He quickly stepped to the end of the boat and dived off, and soon Joyce dived in after him. At this point I figured what the hell, and also stripped completely and dove in. The water felt great, cool but not too cold. I am a pretty strong swimmer and swam away from the boat, then turned so I could swim in big circles around it. I lost track of where Joyce and Paul were, but it felt so good that I just kept swimming. After maybe half an hour I headed back to the boat. As I approached the boat it struck me that I was nude and probably Joyce was already on the boat, but I figured since Paul had suggested we swim nude he couldn't object to the situation.
As I pulled myself up onto the end of the boat the first thing I saw was Joyce kneeling in front of Paul with his hard cock in her mouth, sucking on it. She was completely naked too. As I came up into the boat she turned toward me, with Paul's cock still in her hand, and said "Oh oh, I think we got caught." then she looked up at Paul and started sucking him again. I will still horny as hell from hearing them fuck the night before, and my cock took about three heartbeats to fill completely and stick out straight in front of me.
Paul looked over and said "It looks like he doesn't mind, in fact I think you really got his attention!".