On my days off I have the house to myself, so I like to spend as much time as I can walking around naked and hard. As soon as I wake up I strip and go downstairs, and a lot of times I just watch TV and masturbate as much as I want until my parents get home. I was sitting there stroking one morning when I got the urge to do something daring. I thought about what I could do, then decided to do it where someone could see me. Our house is a little ways back from the road, but it is pretty busy, especially in the morning. I opened the front door and stood there behind the glass, with my heart pounding and my penis sticking straight out and bouncing.
I watched the cars drive by for a little while, then grabbed my erection and started stroking again. It was kind of scary knowing that if someone looked over they would see me, but it was really exciting too. I could feel my balls start to tighten and precum was running all over my hand, so I started stroking faster. I pounded away at my rock hard penis until I felt my orgasm coming, grunted and blew my load all over the glass door. I leaned forward and smeared the head around, milking out every drop. After the excitement was gone, I realized how big of a mess I made and had to clean the whole door so it wasn't obvious. When I did it I stayed naked, with my now soft penis hanging down.
I didn't get dressed after that, and actually masturbated in front of the door again, but that time I shot my load into a tissue.