I'm not sure if this was the intention, but while I believe anyone can be friends, the comment about 'if anyone got naked and changed clothes' doesn't seem entirely typical for most cultures.
When we go skiing, for example, we all change from jeans into Winter clothes outside the car after parking at the resort. I've seen most of my friends in their undies, regardless of gender. It's not sexual, it's just convenient.
I have no idea how common these types of situations are elsewhere.
I have no idea how common these types of situations are elsewhere.