This was when I was ten and my brother was seventeen.
My and my big Brother have always been close. It was a Saturday night and my Mum, Dad, and sister were out.
Me and my brother share a bedroom and I was on a bunk and he had a double bed. I heard this noise when I was laying down, and there was my brother playing with himself. I was looking at him through the gap in the side of the bed. He had what must have been an 8-inch penis, uncut and very thick, with low-hanging huge balls. It might have been smaller because I was smaller, and everything seems bigger when you're younger. Anyway I really wanted to go over to him and touch it. In the end I did, and he turned around and said, 'Hey, what's up?'
I said, 'What are you doing?'
He said, 'Do you want to do it to me?' I wanted to, I said yes, and climbed up on his bed and felt the head of his penis. It smelled nice from what I remember. I began to copy his movements and he began to moan and do thrust movements into my hand. As I was doing that, he pulled down my underwear to rub my little dick, uncut as well, at about 4-1/4 inches. It felt really nice, and of course I had masturbated before. But this was different. I wasn't doing it, my brother was. I watched him and copied his movements, struggling to fit it all in. We carried on till we both climaxed and we've done that everytime he babysat me.
I LOVED IT!