Claire had a hard time keeping her face straight. Others did not even try. The giggling even included Babcock's fan block."A witty reply, Ms. Darling," Babcock smiled evilly. "Perhaps you will enlighten us with the answer to my question?" The difference between U-test and t-test, Sir, or the one about my last name?" This is statistics, Miss Darling." Oh, okay." Deirdre started, still speaking in a low voice. "The fundamental difference is that the U-test compares ranking, not numerical values. This makes it more robust against outlier data pairs but sensitive against shifts of the median." And, pray, why is that so?"From this point on, Claire, together with the rest of the class, lost track. They were talking about Null hypotheses and distribution curves and the exchange became heated to a point that Deirdre spoke with a clear, carrying voice. To Claire it was like watching two people argue in Latin. Obviously, Deirdre held her own because Babcock returned to his droning lecture and. He didn't want to miss one single stroke, one facial reaction Leigha had from her new offering.She was in heaven! All the many times she wondered what it would be like, all the erotic notions she had. They all fell woefully short. This was incredible!!To have that cock so hard inside her, yet be able to manipulate her clit exactly as she wanted. She felt totally in control, extracting from her body every enjoyment she craved.It couldn't last forever, though. And it didn't."Come for me."It was softly whispered but she heard it."Come for me, Leigha."She would never have thought such a gentle and simple request could have the impact it had. But it did, almost a sensual command.Instantly, her fingers increased in speed and pressure and she rocked on his cock with longer strokes.Sixty seconds. That was about it. Sixty seconds before she threw her head back and released."A-a-a-a-a-u-u-u-u-u-g-g-g-g-g-h-h-h-h-h," came out of her in a long moan.Then she gushed, moaned, slammed against his.
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