I like it all!
When I was 14 I was growing a cock like crazy and I could spurt a fair amount of cum.
I asked dad to tell me about sex but he asked his bud Rob, who had 4 boys, to do it for him as he was embarrassed to do it himself. So, his bud Rob and me got together and he explained it all.
He showed me how to jack off and we masturbated each other that first session. The next day we continued to talk sex and jack off each other. After 4 days we became regular jack off buds for about a year or so until he left for a better paying job in another state.
I had plenty of mutual jackoffs since, but no one satisfied me like Rob.