I did that too.we were watching porn and he asked if he could take his dick out.He hada very small penis.He told me to take mine out and I did.He was amazed at the size of mine and asked if he could stroke it.I let him and it really felt good.I jacked him off but was amazed because his dick was so small.Next time he came over he wanted to suck me, so I let him.I came in his mouth and He wanted me to jack him off .The next time he came over he had me fuck him in the ass,He hasn't. Been back since.
I've never watched porn with anyone else, but I'd like to, as a kind of foreplay to warm us up before we have sex. Mutual masturbation with anyone other than a lover sounds very adolescent.
Yeah i started with my best friend from high school when we were 13yo. Then later that year we found out or other two friends had been doing the same stuff, so next thing the four of us were jerking together. We still do it and all enjoy it