Four-way Stop: Motorcycle Couple

On my way home, I stopped at a four-way stop, and this is the moment I almost missed. I grabbed my camera, which I had in bracketing mode: EV, EV+1, and EV-1. This is the still from EV-1, which happen to catch the couple right in front of my car. I shot this while panning my camera with them. I really like this photo because of the cinematic feel, the look of the couple and the motorcycle. I like the highlights on his face. Are they escaping something? Running for love? Or maybe a quick getaway, or is that just his sister on the back? What do you think?