Well i'm in school now but go home fairly often. I have an older sister but she moved out a while ago and is on with her life and my mom died back in sixth grade so its normally just me and my dad. Since its just us we arent very modest with our bodies. I suppose it started around eighth grade/freshman year when my sister was out of the house for a year. I guess it kind of just manifested from us being more comfortable around the house in our boxers and what not. One of the first times he really caught me in the beginning though was when I was in the shower (I play music on the radio when I shower) and I was beating off and he walked in to take a piss and I didn't hear him at first because of my music and I was really going at. We have completely clear glass on the shower so he saw everything. That moment was probably the moment that really broke the ice for us. he joked and said don't worry about it he does it too but don't clog the drain and all that typical dad stuff. Now he doesn't even bother to close the office door when he goes at it. From an outside perspective the situation is really hot when i think about it but being in my position i'm still confused as to whether I think its just mundane or kinda hot. I guess I don't mind seeing my dad's hard dick and vice versa somewhat often lol