If anyone is interested in this story then please let me know and I will write the follow up.
One night I had a friend of mine over. I won't give his real name so I will call him 'J'. I was just putting on a DVD of a film that we both like (not a porn one, but there is a bit of masturbation in it) The film gets to the scene where there are two lesbians masturbating and my friend grabs a cushion and holds it over his crotch.
I do not consider myself gay but I have always been curious about other peoples penis's, so I grabbed the cushion away and saw him with his hand wrapped round his shaft and jerking off, I asked him how big it was and he asked me to fetch a ruler and see, it turned out to be five inches.
He then asked me how big mine was, so I pulled out my now extremely hard penis which I measured (it is 7 inches), all he said was 'I think you're a bit bigger' before returning to his own masturbation and began to moan softly, which started me off thinking about this girl at school, we will call her 'N'. I had fancied 'N' for a long time and began to picture her here with me. I don't know what 'J' was fantasising about but he began to moan very loudly.
He then asked me if I would mind masturbating him while he did me, I was more than happy (I wanted to see if he could make me moan as loud as he did). He didn't disappoint and within minutes he was making me moan the loudest I ever had before (I'm normally silent when masturbating so I don't wake up my parents) He then shouted that he was about to cum so I pounded faster, my hand flying up and down his shaft and he came with about four or five thick spurts he looked very satisfied.
I then said 'Hey what about me?', so he continued to masturbate me and I was moaning when I yelled that I was about to come so he began to stroke faster, thoughts of 'N' were flashing through my mind as I came in with my most powerful orgasm yet. I also shot the biggest load ever with about seven or eight spurts.
After all that we cleaned up and we both agreed never to tell anyone and that it would be our secret. We did more things after that and I will write about them later.