I need some help!

Recently I've been on a 2 month trip around Europe. Of course, other than just seeing the landscapes and beautiful scenery, I also went to some of Europe's finest nude beaches. I was naked in every possible place I could be. I even answered the door naked to a man around my age (21) as he gave me room service at a hotel.
Now that I'm back home, I'm staying with my parents and younger sister for a month or two. I really miss being nude and apart from escaping sometimes to nude beaches, I need some other activities to do nude. Of course, I'm not afraid of them seeing me naked but they don't appreciate it when I'm naked around them...especially my younger, 14 year old sister. Any thoughts?