Is it normal to think being naked is just plain fun?

Me and my group of friends are usually naked together when we're just at someone's house. I forgot exactly how it started, but I was 13 I think, and someone mentioned swimming even though we didn't have swimsuits with us, and after some talking we all skinny dipped. We started skinny dipping together a lot, it became one of our things, and it grew from there! We didn't get dressed again after we entered the pool, and soon it became our thing to just be naked around each other. From that we started taking funny pictures, taking baths together, and so on. It's all so much fun! Whenever we're with someone new, it's always easy to convince her to be like us. It's nothing weird, we aren't lesbians, but being naked with other people is so much fun! is it normal to think being naked with friends is just plain fun?