The summer of my 12th year was my 4th year of masturbation. I almost always used to think about my cute blond, slim best friend Bobby whenever I beat off. I had seen him partially naked a few times when we went to the public swimming pool in the neighborhood park. I was always trying to catch a glimpse of his cock when we would change in the locker room before and after swimming. Or when we had sleep-overs at each other's houses.
But that summer I got a whole new jackoff fantasy when one hot night I snuck into his dark backyard to spy on him through his bedroom window. I knew that his blinds and window would be open as it was a very hot midwestern night. I decided that I would try to see him get undressed before bed. I never thought he was much into sex or beating off cause we never talked about it, ever. As I peeked through his open window I had timed it perfectly as he was just going to bed as I got there. I was so excited my boner was almost sticking out of my shorts. As he slipped off his underwear while facing away from me I thought I was going to be robbed of seeing his cute little dick but he suddenly walked over to his light switch on the wall and turned out his bedroom light and closed & locked the bedroom door. He walked over to his closet and turned on the overhead light allowing just enough light into the room to allow me to see him completely naked. He jumped into bed, reached under his pillow and pulled out a small bottle of some kind. He squeezed the bottle while holding it over his dick and slowly began to rub himself. I watched his cute little dick grow to maybe 5 or 6 inches as he lay there jacking himself off. Within a couple minutes he began to moan and jerk faster and faster. When I could see that he was ready to cum, he suddenly threw his legs up in the air, as he leaned back on his headboard and let his hot cum spray him right in the face as he moaned and moaned. I was so hot I knelt down in his dark backyard and jerked my cock until I shot all over his lawn.
Later we had adventures together. More about those another time.