daring pam naked at lake with three guy friends

This is a recent pic of me with my three guy friends at a local lake. They got me to take my clothes off then locked them in the car. The lake where we went was on the isolated side but in view of the public beach. We were there for five hours, so at one time I swam up the side of the lake into the public area and swam naked amoung the other swimmers. It was daring knowing I was nude but among others with suits. I later went back to our area and we ate from the fire pit and finally were to go home, when they gave me back my clothes