I can't even take credit for this. RL tweeted the URL and it is just a nice, hot vid clip of two guys getting it on, on a train.
What you see above is just a screen capture from the video - which you can view here.
Yeah, they are hot guys. Yeah, they are NICE cocks. ...but fuck do I love public sex. I could so see me doing something like this and taking the risks.
It'd be totally worth it.