When I was thirteen, I went to my friends' grandmothers house. Her house was huge and she lived in the middle of nowhere and owned a lot of fields. One day we went down to one of her fields and went as far in the middle of it and sat in the middle and started chatting. After a while the conversation turned to sex, he asked me 'how big is your penis, I heard the average size is six inches' I said (not wanting to be embarrassed) that mine was easily six, when in fact it was around three.
The conversation went off the topic, after a while he said he was hot and took off his t-shirt. I was also quite hot so I took off mine as well. After a while he said 'I'm still boiling' and took off his trousers. He was wearing boxer shorts and I could see the outline of his testicles. I was getting hard, he then put his hand down his boxers and started feeling himself quite a lot. I was very hard by now. I took off my trousers, scared by what he might say by my erection, he looked at it and said 'have you jacked off before' and I said 'yeah a few times' and he said 'would you mind showing me?'
As soon as I said yes, he took off his boxers and threw them behind him. I then looked at his six inch hard on and he said 'go on' so I grabbed it full fist and started stroking, up and down getting faster and faster. He was making amazing expressions on his face and he blasted his man juice all over my hands and boxers. He said it was the best experience he had ever had. He then offered to do me. I was very excited and he pulled down my boxers and began to toss me off. I immediately came all over his hand and he smiled.
We now talk about masturbating and masturbate together all the time.