I only had to nod and ask the occasional question to keep her talking.As she moved around and in and out, her breasts inevitably brushed up against my... shoulders, my arms and even my cheek. This unintended contact caused her nipples to harden further until they stood out quite sharply, which of course only fuelled my fantasies, and it wasn’t long before I, too, was quite hard.Then she changed her position so that her back was turned to the rest of the room. My stiff member took control. Acting. I was thankful that the Marines had turned me into a neatnik. Wouldn’t want my little sis to think I was a slob.In about half an hour Meg came into my office wrapped in a bath towel.“Did you order the pizza yet?”“Just about to. You want to do it? The menu is on the fridge.”“Oh, I know what I want ... everything but anchovies!”“Sounds good to me. Leave off the broccoli, though.”“Ick!”Meg padded barefoot into the kitchen, made the call, and then came back into the office.“Do you have a hair. I started to get up and she pushed me down. ‘No! Let’s try something new.’ She impaled herself upon me, facing me, and started to gyrate up and down, while rocking back and forth. She arched her back and tilted her head back. We started to moan in unison. My body arched to meet her every down stroke. Faster. Faster. Harder. Louder. The squelching noises of my juice coated dick sliding in and out of her sent us over the edge. She climaxed. Her pussy clenched around my swollen head and rigid. There were at least three pregnancies in the school which were a direct result of my education. Some of those frightened girls had felt a sharp knife to their throats, and others were black and blue from my fists before I had unleashed my seed into their wombs. Bigger, stronger kids in my classes had tried to play the hero, but none survived either the poison I slipped into their soda cups or my offers to let them bury their cocks into trembling, bruised cunts.She was a new student, innocent as.