Ever jerk off with friends ?

When I was in high school we neighborhood boys would always hang out. One boring night we were walking the neighborhood. We went to the park. And decided to see who could get hard first by rubbing the outside of our pants. Four of us in the park rubbing our crotches. Eventually we got hard. Our boners showed through our jeans. We looked at each other. And then we started rubbing the guy's crotch next to us. It was nuts. Then we heard someone or something in the park. So we stopped and ran away. We never talked about again.