Thomas could not believe his good fortune. It had barely been a month since he had struck up a very special deal with the incredibly cute and petite Katie Rich.
As Thomas drove down the winding road in his beat up old car, he kept glancing at Katie in the passenger seat next to him.
With her pixie-like face and layered dark auburn tied back in a rough high ponytail, Katie looked as gorgeous as ever. Her skin was fair and freckled, and she was incredibly slender and petite, showing off her body in a tight white tank top over a snug black bra that compressed her perky tits into luscious cleavage, and a pair of the tiniest denim mini shorts Thomas had ever seen, revealing her smooth creamy legs until they reached black pumps. It was a casual look, but the skin on display and the slight and supple curves of Katie's body had Thomas tenting in his trousers with intense arousal.
Katie seemed oblivious or uninterested however, humming along to the music playing and watching the rolling fields of the countryside pass by.
They were both college juniors, and Thomas, who had always been very accomplished and studious, was suddenly reaping some unexpected benefits from his talents. It was exactly those skills that had led to Katie to seek him out, propositioning him with an irresistible offer. Katie wanted to excel at college. But she had a full social life, and didn't see the point of wasting so many hours studying when she had found a far more efficient way of delegating her work. She would find male students that had the skills she needed and asked them to do her college work for her, in exchange for certain special favors she was willing to provide as incentives. Favors of a most sexual variety.
In short, Katie's favors were a simple and elegant form of sexual barter, with everything from blowjobs to anal sex on the table, depending on how well her men performed earning her good grades.
On his first major assignment for Katie, Thomas had earned her an outstanding A+. Which was why Thomas was now driving Katie in his car to the countryside, where he intended to claim his latest reward.
Katie had gone down on Thomas once before, in the college library no less, as a treat to motivate him to do well. However to get anything more out of her he would have to earn it. And Katie had worked out a pretty thorough system of rewards based on performance. Thomas mused she would probably make an excellent human resources manager some day, though he doubted she could use quite the same incentives in the work place.
For each assignment, anything less than a C grade was a dud, and would get Thomas nothing. However a C itself would get a hand job, simply for the effort of doing the work, although Katie was quite clear that any repeated poor performance would see Thomas booted from her clientele. If Thomas got a B, Katie would reward him with a blowjob. After savouring her incredibly talented mouth once before, Thomas had hoped he would have the chance again. But in truth he was aiming much higher.
For scoring an A, Katie would allow Thomas to fuck her. But the real clinch came when Thomas had persuaded Katie, partly in jest, partly just to see if she would agree, to say that an A+ would earn Thomas the right to fuck her up the ass. And it was a tight, gorgeous ass indeed, especially in those tiny mini shorts that clung to her like a second skin.
Thomas had not really expected Katie to go through with it, figuring she would probably back track into just letting him fuck her normally, which he would have been happy with. But Katie seemed to hold the deal pretty seriously, and so the two of them were driving out to the lakeside where she would offer her rear end up to him. She didn't seem especially pleased about it, but she was going through with it and Thomas could barely restrain himself from taking her the moment he saw her when he picked her up.
They weren't terribly far from the lake when Thomas suddenly felt Katie's hand on his leg. She was idly stroking it with her gentle, delicate fingers, making Thomas' shudder as his boner stiffened painfully into an even more rigid state.
Katie finally seemed to have noticed Thomas' arousal because her hand was now drifting over his crotch and rubbing and clutching his cock through his shorts. Thomas glanced over at Katie and her hazel eyes twinkled mischievously as she grinned at him.
"Oh, baby, you're working me up too much now," moaned Thomas. "We should save it for the lake."
"Don't worry, you'll be up again by the time we get there," said Katie.
"Up again...?" Thomas asked before gasping as Katie deftly unzipped his fly and pulled out his raging hard on.
Her cool fingers closed around the shaft and stroked him. Thomas tried to concentrate on the road.
"Do you like that?" asked Katie sweetly.
"Hell yeah, babe," moaned Thomas. "This isn't in place of our deal, is it?"
"Of course not, you'll still get your prize," laughed Katie. "This is because you're my best student. My other guys haven't done nearly so well on their first assignments for me."
"Oh?" asked Thomas, amused and slightly proud that he had bested his 'rivals' in this little exclusive club of Katie's exchanged favors. "And what did those guys get?"
Thomas had no idea who the other guys were, but he couldn't help but feel a little jealous that they were getting a piece of Katie too. He would have preferred her all to himself.
"Mostly Bs, but there was a C in there too. I might have to let that guy go, I think he got too distracted to the point that he didn't work hard enough," said Katie casually as she kept jacking off Thomas in her hand while they drove.
"Bs, huh? So you've been... down on your knees a lot lately?" asked Thomas, breathing hard with lust at the thought of Katie giving head to all these different guys.
"Only three or four," answered Katie.
"Wow," groaned Thomas. "And uh, where did you take their...?"
"Their loads?" asked Katie, raising her eyebrows at him.
"Uh, yep," gulped Thomas, as Katie kept stroking him.
