My Older Sister!I was 13, and had come in from playing football in the park behind our house.I went into my bedroom , closed , and locked the door, and started changing out of my dirty sweaty clothes into clean jeans and a t-shirt. I knew dinner would be ready shortly , but I decided to take a quick shower before I got dressed. My room was right next to the bathroom; so I didn't put anything on to run to the shower. I thought when I was done with my shower I'd have my bath towel to wrap around me. What I didn't know was that my 18 year old sister was using the bathroom. Just as I opened my door and started to step into the hall; my sister opened the bathroom door. We just stood there looking at one another. My sister broke the the silence with a little giggle and said "Boy your penis hasn't grown much since I last saw you in the bathtub when you were 5. Your penis is really small!" I was so embarrassed that I started to retreat into my room, but she walked right past me to go into the living room. So I just ran into the bathroom closed and locked the door, and jumped into the shower. As I was washing my penis I started to get exited. I quickly finished my shower and wrapped my towel around me. I went into my bedroom closed and locked my door. I decided I would take advantage of my hard-on and jack off. I lay down on my bed which was directly across from the door and began stroking my **** and playing with my balls. I still thought that I had plenty of time before dinner would be done; because as I was going into my bedroom; I heard my Mom tell my sister that the meatloaf wasn't quite done.. I decided to take my time jacking off. I would bring myself close to ***********; then I would stop and let myself cool down. I did this several times and each time I did it my **** seemed to get harder and the pressure in my balls and groin grew even more intense Precum was dripping out of my pee hole like a river.. The last time I stopped a little ***** squirted out of my ****, and I knew I wouldn't be able to stop again without *******.. The pressure to *** was getting very intense and my **** was hard as a rock and just dripping precum. I was moaning and my breath was coming in short gasps. Evidentilly I hadn't closed my door completely because my sister heard my ragged breathing and moaning. She just pushed the door open and stepped into my room. I was so close to ******* that I couldn't have stopped if I had wanted to. As she just stood there watching my hand going faster and faster and I opened my legs wider to allow me better access to my balls. I squeezed my balls and rubbed my **** head with one finger. I started shooting my *** all over my chest and stomach and I just kept squirting while my body went rigid.. My sister said "My God for such a little guy he sure shots hard and a lot of ***!" I finally stopped squirting and my **** just kept quivering. She said "You must have been really exited because your **** is still quivering and ******* like he's still *******! Even though he's really tiny ****, I think he's cute! Oh, by the way clean up quickly because dinner is ready, and you know Mom will be back here if your not at the table soon." I was still partially hard when I wiped my chest and stomach with my towel. When I put on my underwear I winced because my **** head was still sensitive.I walked kind of funny until my **** was completely soft. When I got to the table my Mom said "Son are you all right? Your face is so flush!" I assured her I was fine and started to fill my plate with food. Nothing more was said that night, but for a long time my sister would look at my crotch, smile and wink at me. To this day my sister will remind me of the day she saw me naked and my little **** shoot a copious amount of ***. This really happened to me in November of 1960 right after my 13TH birthday.