The era when Torean humans lived only inside the ziggurats is somewhat hard to pin down, historically. Most of what we have is myth from the humans an... propaganda from the AIs, so who knows what to believe. All we can really say is that this period marked the development of the current social system at the poles.HusbandryThe goal of the AIs was to make Torei habitable for normal humans, but the death rate among the early populations was too high. The bio-engineering research program produced. Meanwhile, Stella got herself to orgasm with her vibrator. She was moaning real loud and rubbing herself like crazy. Emma and I just smiled at each other. "Yeah your sister's pretty hot too," I winked at Emma, who winked back. Stella smiled at me and waved. My attention was snapped back to Emma. She added her thumb and was now fisting me! I didn't know my pussy could accommodate all that space! I could feel my muscles expanding to adjust to Emma's fist. She did an in and out motion, penetrating. A very nice job, indeed. Let's take a ride and get rid of those boxes and pick up the rest of your things. I do have to get back before it gets dark."We drove back into the center where the vacant house was and I ran in quickly to grab my few things. One look around and I said goodbye and good riddance. I piled my stuff in the truck and climbed in beside her. She drove down the block and pulled into an alley and around behind a big brick building. She went inside for a minute and returned with. I closed my eyes, recalling the fun we had last night and I felt the precum already creating the slippery path towards a bullseye that it had its mind set on. I felt the lady moving a bit, shifting her leg so that everything became more readily available; I pushed slightly, pretending to be stretching and a successful hit. I felt her slightly pushing back and my dick slipped in its own set goal. A bit tight, but because of the sufficient amount of precum no problem. I must have gotten her in.