When I was 16 and my bro was 13 we went on vacation with our parents. We stayed in two different hotel rooms because we got one 1/2 price when we pay the second room. The room me and my bro stayed in had two beds. It also had a whirlpool right in the room. It was able to fit two or three people. It was cool. My bro's name is Tom he is just getting a pretty good build, he is thin and got blonde hair. His cock erect is about 4 1/2 inches and cut. He also has a little hair. I am also thin with a good build and a 6 inch cut cock.
When it got dark out I said I am going in the whirlpool. Then Tom asked if he can go in too. I said sure. Since it was just the two of us Tom said why don't we go in naked. I said why not, we are brothers and we have seen each other naked all the time. So the two of us went in nude. I said it feels good on my cock, Tom agreed. I got a huge erection. I told Tom that I need to jack-off. I asked him if he Jacks-off, at first he said no, then he got an innocent look on his face and said yes. So we got out and I brought some lube with me.
I took some and gave some to my bro. We both laid on my bed next to each other. I was watching him and said no your doing it the wrong way. So he watched me for a while. Then I offered to jack him off. It was great to hold a guys cock. He was moaning and said he had to cum. He came all over me pretty good for a 13-year-old. So then he said I have to jack you off now. He grabbed my cock and said how big it was. He was jacking me off as I was kissing him. Then I started to moan and I came all over him. We slept in the same bed that night in the nude. We still jack off together.