A guy picks up his girlfriend in his convertible and they go for a joyride out in the country. When they're out the middle of nowhere, they start taking off their clothes as they're driving along. They don't realize that as quickly as they're throwing their clothes into the back seat, they're blowing out of the car.
All of a sudden they run out of gas.
The guy turns around to get the clothes, and there's nothing there but his sneakers.
He says, "I gotta go to town to get some gas."
She says, "I'm not staying here naked. I'll go the gas, and you stay here."
The guy figures he can't send her into town naked, so he takes one of the sneakers and he ties it to her pubic hair. She walks into town, finds a gas station and goes up to the kid pumping gas.
She says, "You gotta help out my boyfriend."
He takes one look at her and says, "Listen, lady, if he's that far in, I don't think there's anything I can do for him."