Ha, while I haven't had sex in my car (yet), I do know that it's possible for a chick sitting on the passenger's lap to give the driver a handie, while getting finger blasted by the passenger.
It made for an interesting ride back to the house. Hard to balance driving safely with FUUUCCCCKK WE NEED TO GET HOME RIGHT NOW.
Edit: and before anyone asks, no, it was not the devil's threesome
