The unit circle, converting angular dimensions into radians and periodicity. I didn't understand what this had to do with business but a class is a cl...ss. We were almost done when the instructor gave us a break. We had used the correct formula but our answers weren't quite correct. We just needed a little fine tuning to finish. During the break my group mates left the room to smoke or whatever. I stayed in my seat and started reading a book on my iPhone.I was halfway down the first page when I. The ones who have done it, do know how it feels.After her rocking up and down for a while I started lifting her up till the head of my dick alone was in her wet pussy and let her drop down. I picked her up again and let her go and I kept doing it, her buttocks slapping against me before I lift her again back up.We both were breathing heavily and sweating profusely. I was on the verge of cumming and so was she.I whispered to her in the middle of my deep breaths “Jaannn I am gonna cum” and she. It’s an old car, but it looks brand new!The next space contains Lee’s project car. It’s a nearly complete restoration of a 1966 Corvette roadster. Rick explained that he bought the contents of several storage lockers from a place that rents storage space by the month. He had no idea what they contained but a good friend, the owner of the storage facility, highly recommended that he put a bid in on it. He knew Rick had been looking for a project car to work on with Lee. One of the spaces had. I'm watching her kneeling naked between my legs, that's so hot. She reaches for my dick, grasps it and leans forward to take me into her mouth.I've said it before, she gives the best blowjobs in the world. I know this for a fact, and today's blowjob was her very best. She was taking her time to enjoy it, I know what that's like, and being on the receiving end of it was totally mind blowing. And my mind was blown, repeatedly, along with my dick. I was the one writhing and moaning this time, I.