Re the changing thing, I recently shared a room with two women for three weeks. Single room, v small shower adjacent to room, no room to change in shower so all got changed in the room.
Still, none of us saw any of each other's bodies. We changed in the normal woman way of exposing as little as possible. We weren't all wandering around in the nip, getting undressed and then looking for our clothes.
We changed discreetly, exposing as little of our bodies as possible, as most women do!
Actually, come to think of it, we didn't have any pillow fights either - I guess we were letting womanhood down.