Always say yes. It must have been like this when I was a child, especially when the economic conditions at home were not very good and there were no spare rooms at home. It was the only way at that time. But because I am young, this has no effect. But as you get older, this awareness will come out. I'm talking about privacy. This idea will be instinctively rejected as soon as it comes out. No matter how good the relationship is, the two brothers will avoid taking a bath at the same time, unless it is in a public toilet like school, boys can go to the toilet. But this kind of naked sleep is not very understandable. At least I personally don't understand.