Brothers

When I was 17 my brother was 13. We shared a room. One morning while I was getting ready to go to work, I was in the bathroom we shared. I had a hardon I thought I'd get rid off. I was sitting on the toilet going at it when my brother walked in. He said Don't stop now I want to see what happens next. I couldn't stop anyway and shot my load. He was amazed. While I cleaned up he told me he had lots of precum but never finished because it felt weird. I told him what to do and left him in the bathroom. In minutes he called for me to come in. There was his evidence all over the bathroom counter. Then he said look at this. His erection at 13 was the same size as mine at 17. Since then the kid hasn't stopped. Every night he pulls down his draws and goes at it talking the whole time. Now I am in college and when I go home he still does the same thing.