Home alone teaching brother how to jerk.
My father was a pastor and every Tuesday night he would have a church board meeting that would last several hours. I was always left in charge of my brother. Being fifteen at the time I hated this responsibility as I was not even getting paid.
One night we were both sitting in our boxers watching wrestling on tv. My brother was being a smart ass and said I bet I could pin you. Well I pinned him about ten times and he start to get mad so I thought I would be nice and let him pin me once. While he had me down my cock accidentally flopped out of my boxers and he saw it. He said wow that is really big. At the time I was not huge but I told him that his will get bigger when he gets older. He said that sometimes his gets bigger and harder. I said yeah that is just a boner and is no big deal.
He asked me if mine did that and I said yes. He said can I see how big it gets. At the time I was starting to get really horny so I said what the hell. I pulled mine out and he was amazed. I was only about six inches at the time. He said that he had one too and pulled his out.
He said what are we supposed to do with them? I said you can jerk off. He had no idea what I meant so I began to rub my cock and told him to do the same.
After a few seconds he said that he did not like it and quit. I said here let me help you. At first he was shy but then he finally gave in. I began to stroke his cock between my fingers and he closed his eyes and started to squirm. After a minute or two he said he thought he was going to pee. I told him to relax and kept going. He then had a really intense dry orgasm.
He then asked if I would jack off for him to show him how I did it. I began to stroke my cock and only lasted about five minutes before shooting a big stream of cum on the floor. He thought it was cool and asked how I did it. I told him that he would be able to when he was older.
The only other thing we ever did was compare cocks when he was 14. His was about five inches at the time.
Now he is straight and I am bi. We have not ever talked about it.