A trucker had been on the road for a couple of weeks and was looking forward to seeing his girlfriend back home and having sex with her. He was nervous about busting a nut too early and remembered reading that masturbating before having sex would help prolong the act. The only problem was that he didn't have a place to beat his meat, his helper/co-driver was sleeping in the back and there were no truck stops for miles.
Then he had a stroke of genius and stopped the truck at a wayside. He hopped out and went under the truck to make it look like...