The Boat Trip

My brother David built a 30 foot boat 1978, when he was 23 then. After he launched it and done some testing and he decided to take a long trip. I was 20 at the time, so he asked if I would like to join him on the trip. He planned a trip of about a year in duration, we were well off financially. Due to a family trust fund, our parents weren't too concern as David and me had been boating since we could walk. When we left in early 1979 and headed southwest towards the islands in the central Pacific. After spending 2 weeks around Hawaii, we headed off towards the Fiji Islands. We came across a small uninhabited island and decided to stay for a few days. It had a small beach in the only cove on the island were we anchored. There wasn't much to see as there was a large hill in the centre of the island which was impossible to climb. So we fished and swam the first full day there. That night we slept on the beach, later on I heard David making noises and seen that he was masturbating himself. This got me playing with myself, but couldn't get satisfaction. Having lost virginity at 18 and on the pill, I thought why play with myself when David is also horny. So I got up went over to him and asked him to fuck me. As I was naked and caught him with his hand on his cock, it didn't take much talking to get him to fuck me. He fucked me good and hard, we also went about naked next day getting all over tans. We had sex again in the afternoon and that night, we left the island next morning. We continued fucking for the rest of the trip and for a few years after we got back home. We both got married different people seven years later 1986 and I had 3 children to my husband Donald and David had 4 with his wife Elizabeth. Elizabeth passed away due to cancer 6 years ago, I got divorced 4 years ago when I caught Donald fucking the cleaning lady at his office. I dropped by the his office with dinner for him, as he had told me had to finish some work and wouldn't home till. It turned out he had been fucking her for year or more. Always on the night of my bridge club, but due to a few of my friends getting sick it was cancelled that night. Just over a year later the the divorce was final and I went to see my parents at their retirement village. David also turned up to visit them for their wedding anniversary, along with all the other family. I had a walk with David after party and he told he was go sailing again and said If I wanted to get away for a bit I could go with him. I smiled and asked Will you be fucking again as before. If you want he answered, well I go with then. We had a 6 month trip about, people we met thought we were married. After returning home we started to live together, buying a house together and having separte rooms joined by a secret door between our closets. This is because our families visit regularly and we keep our sex lives secret from them.