OK, I was on vacation with the wife and we were headed back home after a late night of partying but no sex. I was driving and was horny as hell but there was no place to pull off the road and rip off a piece, so I made an excuse about being too tired to drive and let the wife take the wheel of the minivan. After about 5 minutes of trying to sleep it off I couldn't wait any longer, so I dropped trou and proceeded to lend myself a hand while the wife drove at 70mph down the Transcanada. Not sure if anyone could see in but I didn't care, however the wife was shocked. Quite possibly the best orgasm I ever experienced, and what a fuckin mess too.