Melli started returning Mike's kisses - just as he had expected and just as she had been programmed. The kisses were technically well executed, but to him they felt obviously mechanised and passionless.nnMike closed his eyes and enjoyed the experience for what it was. He imagined the complicated machinery of her mouth moving to provide him with this simulated act of sensuality. He envisioned all the moving parts of metal, plastic and silicone and all the precisely controlled surges of electricity pulsating through her wiring and her microchips.nnHer sexy, slender body remained still for the most part while her wet lips moved and changed shape in response to what its sensors detected in his own mouth. One thing missing from the experience was the faint but audible sound of electricity humming and motors whirring. He would have been able to enjoy that too had he been kissing a 510.nnBut the lady in his arms was artificial enough for him. He kissed for a while until a thought crossed his mind. Tipped off by a whiff of a scent, he reminded himself of how this type of usage always triggered synthetic cum secretion in these plastic women. That functionality was part and parcel of the basic kissing and sex programs he had insisted upon being installed in all of them.nnHe stopped his kissing and leaned back a little from Melli. He looked into her lifeless electronic eyes. She was so perfectly empty of feelings, and the look showed clearly on her very pretty face.nn"Melli, lay down face-up on that table and spread your legs." he commanded.nn"Yes Mike." she said, and got to work computing and carrying out his order.nnHe went to go fetch an upholstered stool he had brought down to the lab just for occasions such as this.