Sometimes after big school swim meets I would go and use the school showers instead of waiting to use one of the ones in the pool. The football team had practice every night after school except for a couple of days a week, and swim meets ran late so the locker rooms were usually empty by that time, so I would strip down, take my shower and then start to masterbate. One time when I was showering just about getting ready to masterbate, one of the football players walked in, it was Charlie. Charlie had probably started puberty in grade five, he was heavily muscled and from what I have heard had a huge dick. He pulled down his huge bulging jockstrap and his semi erect cock became visable. I watched from the corner shower in amazement, I didn't think he had noticed me. His semi-erect cock grew to a full length hard-on and he began stroking it, it was huge. I had a pretty big dick myself a little bit over seven inches but his was huge in comparison, it must have been nine or ten inches. I continued staring watching as he stroked his massive dick rythmically unaware that I had begun to stroke myself as well. Then he turned round, at first he looked kinda shocked that someone else was there but then he smiled and said 'enjoying yourself?'
'yeah' I managed to say. He walked over and turned on the shower beside me then leaned against the wall and continued to jerk himself with one hand, he could barely get around his shaft and with the other he was flexing his enormous bicept or he would run his hand up and down his washboard stomach 'Alright' he said 'you up for a switch, you jerk me and I'll jerk you' I could barely say yes fast enough then he grabbed my rock hard cock and continued jerking it. I put one hand around his monster dick and started to jerk it with slow giant strokes, and with the other hand I fondled his huge heavy balls, he did the same to me. Then he shot a huge load a few feet, I shot mine after seeing it.
We turned off our showers and walked into the changing room, the whole time I was watching his huge dick swing back and forth hitting his legs as he walked. 'We should do this again sometime' he said then walked off in to the team room.