Picking Up a Hitch Hiker

I was driving home through the mountains of North Wales when I saw a young man at the side of the road with his thumb out. I don't normally stop for hitch hikers these days but in the mountains they are usually genuine so this time I did. We chatted as we drove along and he told me he was a student at the local university. He got to complaining about the difficulty of making ends meet on his student loan and how he was always looking for ways to make extra cash. He glanced at me sideways and I felt a certain tension in the atmosphere. I asked him what sort of things he'd tried. "Oh, all sorts", he said, that's why I'm hitching. What do you mean? I asked. "If I get picked up by an older guy I offer a hand job for 10 quid" he said. "Do you want one?" Now I'm getting on in years and naturally erections are not as easily come by as they used to be but I've always been an inveterate voyeur, so I replied "I'd rather give you one". "Not sure about that" he said, "I'm not gay". I told him I wasn't either, just liked stiff young cocks and when I upped the offer to twenty quid and he agreed. I carried on driving, looking for a pull off where we could be private and I reached across to fondle his crutch. He unzipped his jeans and I slipped my hand inside to feel his soft bulge through his underpants. "You're not ready are you?" I said. "You'd better wank yourself a bit to get going." So he did and I found it difficult to concentrate on the road whilst also watching him stroking his rapidly stiffening cock. Just then a suitable pull off appeared and I parked and gave him my full attention. I fondled his balls as he wanked, then took over and slid my hand up and down his silky shaft. His clothes were getting in the way so he hitched his bum up and I slid his jeans down to his knees as he unbuttoned his shirt. He had pulled his cock out from the leg of his white briefs and drops of precum were oozing from his slit. I kept on wanking him as his breathing became faster and heavier. I speeded up my stroking until he was arching his back and lifting his bum off the seat. Suddenly he pushed my hand away and gripped his cock in his own hand, wanking faster and faster until with a groan he spurted a fountain of cum at least two feet in the air. I was dizzy with the excitement and the smell of spunk and my own cock was straining in my boxers. He came down from his orgasm and I gave him some tissues to clean up. "Sure you don't want me to do you?" he said, "No thanks" I replied and began to drive off as he wriggled back into his clothes. "You can drop me off anywhere here" he said, "I might pick someone else up". I pulled up, gave him his twenty quid and off he went. I didn't go much further before I pulled off again and wanked myself to a shuddering climax although mine was just a dribble compared to the fountain I'd just seen.  I've driven that road a few times since but I haven't seen him again