My friend and his wife just came back from a vacation and invited me over to give me a gift they had purchased for me. My friend had to go to work in a couple of hours but told me to quickly come over anyways. They had purchased me a bottle of rum and the proceeded to tell me all about their vacation. They started to show me their vacation pictures which were very nice. They showed me more of them until they were showing me some of them on a nude beach. I had seen my friend naked before in change rooms but never his wife. She didn't seem to mind and neither did he. He now had to leave for work and I said I should go too. His wife insisted I stay a little longer and so did he. He left leaving his wife alone with me. This first thing his wife asked me once he was gone was if seeing her nude made me uncomfortable. I told her it didn't but I was surprised they showed me nude pictures of themselves. She said she wondered how I would take it and was glad I didn't mind. With a little pause she said since I had seen her naked she asked if I would let her see me. I said her husband most likely would not approve. She began to unbutton and unzip my pants and told me he didn't need to find out. Before I knew it my pants were off and she began to take everything else I was wearing off. She was seeing me naked now and she then began removing her clothes saying seeing her in person was much better than seeing her in pictures. There we were both naked and she reached over and grabbed my cock. I stiffened up and she then began kissing me. Before I knew it she was on top of me and my cock in her. I knew my friend would kill me if he knew what we were doing. I should have stopped her but I was single, horny and she was gorgeous and wanted it. We finished and stayed naked. An hour later we did it again and even once more that night.