How do I start to be nude around the house even if my parents are home?

Hi, I'm 13 a guy and I'm looking for help on how I should start to be nude at home even with my parents around. I tend to have a "boner" by the similitude things do a lot of the time Id have one for the first part. I do sleep in my underwear and my parents do know that, door is always hit when I'm in bed though. They were like ya sure you can sleep in your underwear, I only asked due to I did not want to have the awkward conversation with them about why. So how do I start / approach them about me wanting to be nude around the house?
How do I start to be nude around the house even if my parents are home?
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