Distracted driving
One time, while driving my truck, I looked down at the car in the lane beside me. I could see a woman fingering her girlfriend's pussy. I've done that too but not while the car is moving.
Another time, I notice something going on in the car in front of me. There were 2 guys in the front seat. Whenever they would stop for a stop sign, the driver would give the head to the guy in the passenger seat. They would alternate giving head to each other. The guy on the passenger side would give head to the driver the next time. I didn't mind waiting. I guess stop signs mean stop sucking cock.
I use to do the same thing with a friend but not while driving. We would drive down sideroads and park, and pull our pants down to our knees and suck each others cock.
Sex is definitely a no-no distraction for me when driving. One time I was driving a buddy back to town after a great day of naked hiking. We were both naked in the SUV. On a remote stretch,of highway he suddenly leaned over and started blowing me. It felt amazing but it was way too intense after all that nude-in-nature sensuality. I slowed down fast and then asked him to stop. We weren't at a place where I could pull over. On one hand, too bad, he was a great sucker. On the other hand, we didn't crash into an overpass when I gooned on my orgasm.
My wife used to give me head while driving. I loved it and never had an accident. I would pull up beside trucks. Sometimes she would get herself off in the passenger seat while I was driving. I sure miss those days. Truck drivers sure as Hell liked it. The thing I've done the most is driving naked on the open highway and jacking off. I love to get naked and slowly pass trucks. It's such a fucking turn on.