Saturdays were my special masturbation days when I was a young teen.
I was home alone lying naked on the floor of my room with a towel under me and my dick lubed up well into my second jack off listening to the noise that the lube made and the thumping sound of my fist hitting my mound. I was edging, getting close to an orgasm then stopping until the feeling receded when I heard another sound. It was a moan.
I stopped jacking, lifted my head, and saw Jack standing in the doorway with his hard dick in his fist jacking off and looking at me. I was surprised and embarrassed, and asked how long he was watching. He said it was only for a few minutes. Then I told him to get out of his clothes and sit on the towel with me. We faced each other with our legs inside the other's so we could jack one another with our right hands. This was the first time either of us had seen someone else jacking off and the first time we jacked each other.