Trading up

Two years ago my husband was caught having an affair with the wife of his partner. He was up to his nuts in her when they caught by the P I hired my his partner to find who she was fucking. I divorced the arsehole and got everything I wanted from him, even those we didn't any children. The house was sold and I didn't want it as it would remind of the arsehole. I returned to my hometown to start again, not that any of the family remained there. My parents had moved to live my mother's mother and run her business. My sister had married and moved to the city, only my younger brother David 25 was left in town. He had the old family home he had purchased off our parents and worked as linesman for the local power company. I was able stay at his home and I had always got on well with him. A couple of weeks after I got back, David had the weekend off and was going to a old cabin he had purchased from a family who's family owed it for 50+ years. It was run down and David was going up to do some work on it. I decide to go for a look and we left on Friday afternoon and would back Tuesday afternoon as David had Monday and Tuesday that week. The trip okay and once we got on the old dirt road to the cabin it got a little bumpy for the 7 miles to the cabin. The cabin was basic as David had said no power connected and a stream running past at the back for water. He had a boiler that heated water he got from the stream for the bathroom hot tap. There was another hot tap in what could be called the kitchen. But you have to wait till the water got hot after David lit the fire to heat it. With another water tank providing cold water to 2 other taps. David unloaded his supplies and checked the water level then lit the fire and went with a couple of buckets and topped up the boiler and the water tank. There was 2 bedrooms, but one was full of tools and anything would use to do the camp. In the other bedroom there was a double bed and David I could have and he sleep on the old lounge. But it wasn't as long as he was tall. So I said we shared a bed as children I think we can a bed for a couple of nights. Okay he said and he lit the wood stove to cook our dinner. After a candlelit dinner we sat outside look at the stars and a couple of beers, then we turned in and later on I needed to go to the toilet. Which was outside in a little building it's own. Not game enough to go by myself I woke David and he went with me and waited outside, the only modern thing in it was a roll of toilet paper. Sawdust to cover your deposit and when David to take it bury away from the cabin and stream. It was the first time had used such a antique. We returned to cabin got back bed together. I was at a heighten level of alertness and couldn't straight to sleep and David just went straight to sleep. While laying there awake and hearing the night noises, I got nervous. I reached out to wake and not watching where I was reaching I put my hand on his groin area. I felt that his cock was rock hard and it was big, David woke up and asked what I was doing. I said the noise were worrying me and I wanted you awake. So you grabbed my cock he answered, I replied why do you have a hard-on. It has a mind of its own he replied, I asked are you having sexual thoughts about me. He said I've hadn't had much success with women and when you a great looking woman in bed with you, sister or not it get hard. I asked so you I'm good looking and would like you also to fuck me as well. To my surprise as I was just teasing him, he answered yes I would. No I decide why not I'm on the pill and feeling his big cock got me horny. I told him I'm willing if you are and we were fucking shortly after and again in the morning and rest of the weekend. On returning home I moved into his bed and have been there ever since.