My cousin and I

My cousin and I were about 3 years apart in age. I was 17 at the time he was 14. I had gone over to his home for a visit and one evening we climbed into his rather large tree house to just get away from our younger siblings. We were just chatting about different things and eventually we got onto girls and sex. I was shocked when my cousin asked me about masturbation. I told him yeah I did it and he admitted that he did the same. He went onto tell me about how he and some of his friends would get together and jack off together. I had only done that twice before and never with a family member. We were thinking about doing some jacking together while up in the tree but then our siblings found us and we were not able to do anything. A few weeks later my cousin came over to visit at my place. His sister had stayed home and my brother had gone somewhere with his friends, and my mother was at work. We immediately talked about what we were going to do the last time we were together and were interrupted. We decided that today would be good day to finish what we had started earlier. We went into my bedroom making sure to lock all the houses doors so we wouldn't be interrupted. We undressed and now standing facing each other we admired each others cocks, which were standing up proudly. I don't know now who suggested it but my cousin got down in front of me and took my cock in his mouth and started to go up and down on it. It was amazing! That was the first time I ever experienced oral sex. It still is one of my favorites and fortunately my wife loves doing it. My cousin stood up and I knelt down and put his cock in my mouth next. I was shocked how smooth it felt in my mouth and how hot it was. I copied what he did to my cock and when I stood up we just started stroking slowly on our cocks. Finally I suggested that we rub on each other. At this point of my sexual life I always came by rubbing my cock on things. Beds, floors, tables, just about anything. Not my hand though. My cousin laid down on my bed on his stomach and I laid down on top of him and started rubbing my cock between the cheeks of his butt. I only lasted about 3 minutes and I shot a nice load on his lower back and butt cheeks. I grabbed a towel and cleaned him up. Now it was his turn. I laid down on my stomach and he put his cock against my ass like I had done to him and started rubbing up and down my butt crack and he came just as quickly as I did. He got a towel and cleaned up his mess too. I never did anything further with him after that and we have never discussed what happened since. Its be 50 years almost since that happened and I still think about it. I wonder if he does?