all my experiences with jerking have been solo, but I have often wished to have a mutual situation with either another male or female.
I am not sure where I will start so I will start with my first explorations.
I have been getting hard-ons for as long as I can remember, but my first real experience with masturbation came when I was around 13. I was watching tv in my room after taking a shower and as I often do I was sitting around my naked. I am uncut and just over 6 inches hard now, so I was probably around 4-5 inches back then. as for girth I am happy with my size. Well back to the story I knew from cleaning that it felt good to pull the skin back. I was sitting on my bed and like most 13 year old's my hand mindlessly went to my penis and I started pulling the skin back and forth.
I was already semi-hard when I started, and it only took probably one or two strokes before I was fully erect. I started to feel something very different, pleasure. At this point someone could have walked in on me and I wouldn't have stopped. I kept going and my body was flooded with sensations I had never felt. Then all the sudden every muscle seemed to tense and this white stuff came out. I had heard enough of my friends talk about sex to know what it was. I used a couple of tissues to clean up. I will continue this in another post with my most intense experience, and my first and only experience with multiple ejaculations.