It is often useful for computer people to use hexadecimal.” I paused.Chrissy’s hand went up. “Mikey dearest, what the fuck is hexadecimal?”“I’m so glad you asked. It means base 16 or a counting system with 16 digits.” I added A to F after 9 on my whiteboard.“Now we need to talk about binary.”Beth spoke up, “I know that. Binary means 2. Right?”“Yes, that’s right.“Computers use binary bits. A bit can be thought of as a coin sitting on a table. It’s either heads or tails, or for computers, 1 or 0. It’s convenient to group 4 binary bits into 1 hexadecimal digit.” I wrote 0000 by zero all the way down to 1111 by F. Then pointing to ‘4 0100’, “This is not one hundred. And by the 8 this is not one thousand.”I wrote the numbers 8, 4, 2, and 1 over the binary numbers. “See how 1001 is 8+0+0+1 or 9. Notice the pattern of the binary digits from 0 to F. This will be on the quiz.”They looked shocked. Hiding my hex and binary numbers I wrote 1100. “Quickly now, what is this binary number in. As I stand behind Roger with my arms locked around his, Shane kneels and licks the underside of Roger’s erection, then both sides.“Not many people can last ten-minutes with me, let’s see if you can,” Shane teases as he takes the tip of Roger’s erection between his pursed lips.“Sarah was right, you are not as long as me, but you are thicker, a real mouthful for me,” Shane tells us before he takes half of Roger’s erection back into his mouth as he teases his balls.I watch fascinated and very aroused as Shane slowly slides Roger’s erection into his mouth and releases it, then takes a little more each time until he is swallowing his full erection.His technique is a lot different to mine, his mouth is very wet and as he lets Roger’s erection slip out of his mouth he blows on it, then licks it as he tickles his balls, before sucking on it again with tight, pursed lips. Then releasing it again and teasing with his finger tips.“Did you enjoy watching Sarah blow me? She is very good. She.
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