Riskiest? Getting horny on the drive home with my wife, talking about how we were going to fuck when we got home I was wearing boxers, so my erection was obvious, even in the dark of the night. She rubbed me until I was totally hard, then started to unzip my pants. She pulled me out and started stoking me, all the while I was trying to stay in my lane, and stay within the speed limit! She then unbuckled her seat belt so she could position herself to go down on me. That was amazing! We both agreed to stop before I had an orgasm, as who knows what would have happened while driving at highway speeds. When we parked at home, she removed her panties, and climbed on top, and lowered herself on my hard cock and rode me until I came.