Back when I was 15, I was, as is all young boys, a chronic ***********. I love ******* off daily in the very early mornings before getting ready for school. My window faced our neighbors house which was quite close together (approx 20 feet ) and their kitchen window faced my bedroom. One morning I was standing next to my bed naked after my shower and started to **********. I am quite endowed and was so even at that time at the age of 15 measuring about 8 1/4" solid inches. Also, I stood at just 5' 8 at the time which also made my **** look huge on my small body frame! I was really working my penis good that morning and since it was early (6:00am) the sun was not fully up yet making my room easy to see in especially with the bedside lamp being on. My neighbor was a nice petite married woman of about 55 and very attractive with a great body for a woman her age. She would always get breakfast ready early for her family and would stand at the kitchen window near the sink doing whatever task was at hand. That day my window curtains were slightly open about 8-10 inches making a nice view right at my bed location. The neighbor's window also had a small kitchen style curtain but was usually left open . After about 3-4 minutes of nice stroking and getting a huge hard-on going I noticed a quick movement across the way. I saw just in time the neighbor lady closing her curtains in a hurry. But was really made it exciting was immediately after doing this I saw her SLOWLY pull the curtain apart about a inch or two and could see a corner of her face and eye staring through. I was immediately turned-on as I realized my neighbor liked what she saw and wanted to watch me jerk off!! My **** rose to its full 8 1/4 inches and I resumed my ************ act....only this time knowing I had an audience. I turned slightly to the side letting her see me in a profile view and would occasionally let go of my penis so she could see it standing straight out and witness how big it was. I continued stroking off and watching her out of the corner of my eye. She never left the window and watched me ********** for about 10 minutes as I did different poses and things etc. I even got up on my bed on my knees and stroked it while leaning back acting real kinky..all for her benefit! While on the bed I was at the end of my session and was ready to blow. I threw my head back and shot off about 4-5 huge streamers of *** across my bed and onto the floor. It was the most intense experience ever in my young life. Soon after I saw her close the curtains fully and that was it. I got dressed and headed off to school. As you might expect, I repeated the performance every day watching for her to look out and she did watch alot although it was not every time. It was a great awakening to becoming an exhibitionist and a kinky thrill I will always remember. My neighbor never acted like anything was out of the norm even when seeing me outside playing or when with my parents so it was a sign to me that she enjoyed what I did and had fun watching.