This was many many years ago... When I was in my late teens, I used to masturbate with some of my friends after college; just discovering sex and our bodies, I suppose. Didn't really think any more than that at that time. I did have one good friend, Simon, who I used to go over and see on a Saturday morning. His parents used to go out shopping not long after I used to arrive and as soon as they had gone, we used to get na...