I share my college room with a roommate. Why doesn't she wear clothes?
She will come in and most of the time she goes in and undresses and then goes naked all evening.
She did it 4 or 5 times already.
I have seen a girl on a date or putting on a bikini or something but I never had one walk around completely bare for an hour or two and she is not ashamed.
She puts her legs up on the back of the couch or sit on the floor.