We can take our chances with your parents.? Tracy shook her head. ?No, I want to, really, but if I?m here alone, I might - I dunno - think my way out of it. Tie me to your bed; because I know once I see you again, I?ll know we have to do this. Please do it.? She looked up at Michelle, eyes wide and pleading.She led Tracy back into her bedroom, rummaging through her cupboard for 2 pairs of stockings, as the young girl lay on the bed. As best she could, she tied her wrists together, then her ankles. These she then tied to the headboard and foot of the bed respectively. She thought for a moment, and then tearing off a strip of plaster from the box next to her bed, gagged the girl. ?Mmm, you look so sexy like that,? she said looking down, into Tracy?s wide eyes. ?We should have done this a long time ago. I could fuck you all day like that - and I think I will when I get back, lover.? With this promise, she leant forward, ran her tongue over Tracy?s nipples and left the. It is a short-term solution to a long-term problem." That is it in a nutshell, Frank. What exactly is cement, anyway?" Primarily it is a mix of silicon dioxide and calcium oxide, with a small proportion of aluminium oxide. What comes as part of the rock dust out of the tunnel is, we think, mostly calcium silicates and aluminium silicates and some other additives that may not be important, so that it needs heat treatment to convert it to oxides. We have not had the chance to examine enough samples to get a consistent result."John pounced. "Well, why don't you put in an order to The Personalia, to supply you with the exact chemicals you require for your cement, for making the concrete you are aiming to produce? They might set up a quarry on the planet, but more likely they will mine asteroids for the material that best suits you. They get their nanos to be selective in what they pick up, so why not what you need? The Landerships often come down to the surface empty, unless they are.
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