I usually wear briefs or boxer briefs. The other day I was short on laundry so I slapped on some boxers and some slim fit jeans. I was leaving work super late and took the G train to connect up to Williamdburg. Waiting for the train I started thinking about how nice my last hookup's pussy was, and started getting an erection. To distract myself I pulled a game out but I couldn't quite get it out of my head. I boarded the train, and there were only a few people on it. I was definitely visible so I had my bag in front to not be too obscene but I think the couple across from me noticed, because the cute black girl whispered something to her chubby white boyfriend and giggled, his eyes darted over to me but quickly looked away. The thought of getting noticed turned me on, even if it was just in my head so the problem just worsened until my clock was pretty clearly a third down my leg. I sat with my bag on top of my lap to hide it but i kept thinking about the situation and getting turned on. It must be in my head I thought. Even so it was a huge turn on. Then I got up to get off the train and I heard the guy say to his girlfriend "it is big! Think you could orgasm?" Then I knew I'd really been spotted! Really exciting random occurance and maye ill wear boxers more often now 