During my junior year of high school, my hardest class was physics. I took it with my friend who also thought it was hard so we decided to study for the midterm together.
I went over to his house the day before the exam with all my books and we sat in the basement studying and doing practice problems together. Of course we talked during this and our conversation came to girls, like always. I started getting kinda horny which wasn't helped by the fact that I hadn't jacked off in days because of midterm studying. I could tell my friend was also getting a little horny because he kept rubbing his dick through his pants, though he didn't have a hardon. I teased him about it after a couple minutes saying something like: 'It looks like someone needs to jack off.' We laughed for a couple minutes and then he said: 'I actually do.'
I was stunned that he admitted that and didn't know what to say. He broke the silence by saying 'You want to jack off now?'
I stared at him as he began to really rub his dick through his sweatpants. I could see it becoming more erect. I got really turned on and started to join him. After we were both really hard, we dropped our pants and then our boxers. We were sitting naked on his couch in the basement jacking off in silence, staring at each other's cock. After a few minutes he said he was gonna cum. He lifted up his shirt, which was still on, and came all over his stomach and chest. I did the same right after. We sat there for a minute covered in cum letting our dicks soften. Then he got up to get some tissues to clean up with.
We put our clothes back on and tried to study again but that didn't really work out. Jacking off had just made us more horny and we had to do it again. We claimed that is was to demonstrate projectile motion (of cum) as we jerked off three more times, the last two with porn.
We never touched, just watched very intently. The only contact that happened was when our knees hit a couple of times and when he accidently came on my leg.