Fishing Island

Long story short. I inherited a small island (half acre) in a lake, nothing special in that. The island was bought by great grandfather to go fishing on, he could camp on the island and fishing from it or going out in his boat to fish. Then my late grandfather built a shack on the island after he inherited it. When he passed away, I got it as the only one who was interested in fishing. I'm the youngest of 4 and my brother and sisters don't like fishing, so I got the island. Neither does my father or his siblings like fishing, the only other interested in fishing is my cousin Mary. So, when I was going fishing, she asked to join me. The shack isn't flash in anyway, no running water and an outside toilet which moves when the hole is filled. Basic but it works for me, the only comfort in the shack is an old potbelly stove to heat the shack and cook meals on. A foam mattress covered in vinyl on double iron bedframe provides the only fitted sleeping accommodation. Mary would have the bed and I would camp on the floor in my sleeping bag. But she said there was room enough for both our sleeping bags on the old bed. Anyway, we had a great time and agreed to do it again. Which we did and due to a sudden weather change it got really cold one night while we were on the island. Mary asked me to join our sleeping bags together so we could cuddle up. During that night cuddled and the next night the cold weather had passed, but Mary said leave the sleeping bags connected as like our cuddling. That night we played about and ended up fucking and fucking became a regular part of our lives ever since. Mary takes precautions and we regularly get together for sex when not on the island. But on the island, we always sleep together naked and have sex whenever we want.