I know this sounds like a very taboo experience to have but I feel like this will be a good bonding experience for everyone. This all started when I finally got to see my sister in law naked and it blew my mind. Because all of these years I always wonder what she looked like underneath. I was thinking this would be an amazing bonding experience for all of us because it allows us four to experiment with each other. Also I get to see my wife try another man's cock. I would like to see how my wife and her sister would act in a sexual environment because I feel like this would allow them to experiment with each other. I was thinking about us four going to a nude beach like Haulover Beach in Florida. To start things off in the right direction.