#120765 - I continued doing so untill I heard her open her door I was bracing myself making it so if she was to peek she could see all of me perfectly. I started to blush for some reason, I knew I had to get my pulsating cock out of the cage of my boxers Once undoing my pants and boxers there stood my just over 8 inch knob I grabbed it with my right hand in the middle and stroked it up and down as fast as I could as I was doing this I hadn't shut the door and my sister walked in and saw me standing over the toliet with it in my hand after, I was 3/4 of the way to exploding I stopped immeadiatly and she let a quiet 'Eeek' I turned and saw my sister Eliza she was 16, 1 year older than me plump breasts, Slim, brownhaired just like me. She did not say nothing then all of the sudden she said out of curiousity 'Wh.