You hold it up against your pussy lips and rub them back and forth on it. You grab the hand rail with your left hand and get up on your feet. You re...ach down with your right hand and grab the base of my cock. You slowly squat down on my hard shaft. Once I’m all the way in you, you let go with your right hand. You are still holding the hand rail with your left as you turn around and look over your right shoulder at me. You start to ride me slowly at first. Taking it all the way inside you. This is good too, it means we are still going to continue.After a good several minutes of pulsing pleasure, I feel a solid object lightly touching my stomach and tracing my skin down my pelvis and inner thigh. My mind is not fully connected so once again it takes a minute for me to recognize the new sensation. They are using the warm stones to penetrate heat into my muscles. Rubbing the warm stones along my stomach and leg muscles which are just now loosening up. The stroking hands do not leave. Every minute or so, she slid her mouth completely off of it and licked and sucked up and down the sides and cupped each testicle in her mouth. During one particularly intense series of thrusts, a small moan slipped out. She hesitated for a split second, waiting for a castigating word or, much worse, losing the opportunity to finish. Instead with a smile she could hear, he said "You may moan, little one. It shows how much you're enjoying yourself and feeds my, sadly typical, Dom ego." With those. The leader of the machines, a massive supercomputer that contained all the combined knowledge of humanity’s sexuality, formulated a plan. The idea was to use the pleasure models to seduce humanity to the point that they would no longer want to continue having sex with one another, and thus humanity would eventually die off. It would take time, but eventually, birth rates would plunge, and humans would go extinct. The leader admitted that it was a ridiculous plan, but since they could not harm.