Family bonds

I grew up in a nudist household with parents who are very sexually open. I mean that they would often have sex in the same room I was in. When I was 16 we were at our lake lot and because of the rain we were in the holiday trailer watching a movie. When the movie ended my parents began to play right next to me on the little couch. I had seen my parents having sex before but before this they were always 8 feet or more away, never a few inches away on the same couch. After about 10 minutes my parents moved to their bed at the back of the trailer which made me suddenly feel left out. I sat there watching for a few minutes before I went and crawled onto the bed with mom and dad. As soon as I was on the bed my parents shifted their focus from each other to me. I was soon in between them and they both began to explore and play with my body as I did the same with them. I think we all played for about 20 minutes when mom asked me if I wanted to have dad's cock inside of me. I immediately answered yes so mom told dad to lay on his back and she told me to straddle him. Mom then grabbed dad's cock and guided it into my pussy as I lowered myself down onto it. I didn't get to ride dad's cock for long before he filled my pussy with his cum. Even though I wasn't fucking dad long I still managed to have an amazing orgasm.
After we finished we noticed that the rain had stopped so we had lunch and then spent the rest of the afternoon waterskiing.