I am an 18 year old male and the youngest of four brothers. I had a few earlier voyeur experiences. While visiting my grandparents in Michigan, my brother and I had to pee after dinner at a restaurant. We entered the bathroom and peed at urinals next to each other. An elderly man came up to a urinal on the opposite side of me and unleashed the biggest flaccid cock I have seen to this very day, probably 6-7 inches. My brother and I made eye contact, mouths dropped, as we watched the huge cock piss. I stared at my brother's cock and my own, feeling so tiny in comparison. My brother is three years older, but my penis was the same size as his. Later on in my childhood, I saw my oldest brother get out of a shower, wearing only boxer briefs. I stared at what I thought was a massive bulge. I couldn't look away.
'Could you stop staring?' he said.
These early experiences sparked an obsession with sex and masturbation for me. Now I am 6 foot, and my erect cock is over six and a half inches and rather fat. I started masturbating at 12 and first came then too. I was so small in the penis department till recently, and now, I love to show my hard dick all over. My first flash target was my father who had never discussed masturbation or anything with me. My mom is often babysitting her grandchildren, so I have the house to my cock a lot. My dad gets home from work about 7 o'clock most nights. One particular time, my mom was actually in Florida, visitng her parents, and my dad and I were home alone together. We decided to have dinner at my sister-in-law's house one night, and we drove in silence on the way home. I thought the idea of flashing my father was very hot, and I got a stiff boner in my jeans. I rubbed it during the car ride home, though my dad never actually noticed; however, when we got out of the car, I positioned my boner to point right at him and we approached the garage door. We stood there and waited for the door to open, and I turned and noticed something. He was staring directly at my erection. It was so arousing. I immediately went to the bathroom, used two hands to masturbate my cock and came like a fire hydrant. I think I filled half a little bathroom cup.
Later in summer that year, I had gone commando and was reading on the couch when my dad came home from work. I made sure to let my soft dick hang out the side of my shorts. He came by and said 'Hey...big *my name*.' and he stopped, staring at my penis. I grew an erection, and after he changed he walked by again. This time my hard dick was concealed, but I flexed. My hard penis bounced up in my shorts as he walked by. I took another trip to the bathroom and wanked a load onto my face and chest.
Recently, I started flashing my neighbor, outside. In my front yard. I walked around with boners and even let my erect penis out of my pants. My neighbor is slightly overweight but very tan. I always pull down my pants and take a few wanks on my dick when he is outside doing lawnwork. He has watched me a few times. I always enter the house and watch him out the window and wank a sweet load. I don't consider myself gay, but I do really like to show off my cock, even if it isn't the biggest thing in the world. It makes me so hot. Geez, this writing makes me hard...