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Your partial derivative of food intake with respect to exercise is 4,000 calories.“Well, that situation, while not continuous and, thus, not really dealt with by derivatives, represents a common physical situation. Z is a function of X and Y; Y is a function of X. The partial derivative of Z with respect to X represents what would happen if Y were held constant. I really need paper -- or a blackboard.”“You really need an audience which is up to speed on that. Remember what happened with your AP calculus?”“Don’t remind me.”“You performed perfectly honorably. Your high-school teacher didn’t do what the course description claimed it would do. You fell behind in college. You learned what you needed to know by yourself. But you needed to know a fraction of a semester’s work. To follow that description, I’d need to have taken -- and remember after decades -- entire college courses I never touched.”“Anyway, PDE is a course different from Diffy Cue. And, if I were interested, I’m sure that. Mt cock was so hard and she was loveing the fact that I was about to explode.How ever I played a little hard to get, kept watching the road and watching the guages. I kept my hard cock under control this way, until she started to pull it out and stroke it. Her hands soft and lubed up and putting my fake pussy over my cock and strokeing it. That didn't last long, since she pulled it off and started to suck me hard and stiff. Being on a 4 lane road is a life saver and traffic was light at 3pm on a thursday.She started to pull my jeans down to knees and I willingly let her.I stood and down they went, she eagerly gulped my cock back up and started to make me cum. Her on her knees and my cock in her mouth, I started to reach over her back and finger her from behind.Her pussy was so wet and warm, lips swollen and she squirmed and moaned as worked my fingers in and out.One then two, deep in all the way to my knuckels.She was wet and trying to suck my cock, and when a truck passed by us on.
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