Cathy was now used to having Max around when she finished her daily gymnastics training out on the floor. Together with her teammates she practiced hard for the University championships. At almost twenty she was way too old for the Olympics but she did not care about that, she loved the sport. And because she was mostly of Japanese descent she still had the light build required to be quite good at this sport.
With her gorgeous face, long legs, and trim body it was a visual pleasure to see her move around the floor. Dance was her specialty. Only on rare occasions did she ever go out in high heels and a mini skirt. But when she did she could have easily competed in any Tokyo Eye-Candy competition. Almost all men would turn their head when she walked by.
Her preference though was for loose jeans, hoodies, and University Tournament jackets. She was actually quite shy having spent so much of her time on gymnastics instead of going out or having a steady boyfriend. She was also studying physics, a demanding program that left little free time. Nor was it an environment that attracted hunky men to distract her.
The team staff had recently been augmented with an experimental humanoid robot from the University Robot Lab. It was a massage specialist, but since it had almost unlimited staying power it also functioned as general help. It came in a male form and his name was Max, a male specimen at the leading edge of full functional human robot technology.
Max was destined for the European market and was therefor quite large compared to the gymnasts and looked fairly Caucasian. He was about six feet, trim, quite muscular, and true to the promises by the Lab, hard to differentiate from a regular human at first glance.
He was also super strong but at the same time worked miracles with his gentle hands as a massage therapist. Cathy had experienced that on the massage table herself a few times when she had a minor ankle injury. His hands were strong and warm, he was never rough, and always well behaved. He also did not seem to be affected by the gorgeous bodies he got to work with on his table, contrary to some of the true male or female therapists that were used in the past. This became an important reason for the team to work with this experimental prototype.
Max's insensitivity to female beauty had tweaked Cathy's curiosity, and during one of her latest regular massage sessions after her workout she had discretely queried Max about this when all her teammates were already in the shower. Max had guilelessly explained that by default his sexual functions were turned off and needed explicit commands from outside to start operating.
When she prompted for more information he explained it was still quite rudimentary, because he was an experimental model that by default was set to heterosexual mode. The explicit commands "sex on" and "sex off" would turn his sex function on and off. The level of arousal and intensity with which he would behave could be set with "sex gentle", "sex normal" or "sex super". These commands also implicitly turned his sex functions on.
Gentle meant mostly kissing, touching, oral if requested, and at most gentle penetration.
Normal meant what the word indicated, what most people would do, but within boundaries and not too much force.
Super meant he could use more force, hold his partner in different positions, and could include anal if requested.
Each level also had a different penis size, and even the amount of ejaculation would be adjusted. In the future there were some vague plans to use his model for artificial insemination, but currently his semen was of course harmless.
The word "sensitive" could be used at each level to soften his approach. For example "sex on, gentle, sensitive" would make him behave even more careful and listen more for oral or physical cues. Repeating words like "sensitive" or "gentle" would reinforce that particular approach.
And of course there was always the emergency break of "sex stop", or even just "stop" that would halt whatever he was doing. Because he was still somewhat experimental a single combination of words could be used to literally turn him on and set a level, for example with "sex on, gentle, sensitive" would set him to his lowest level. Repeating the word "sensitive" would insure he started very slowly.
Max emphasized that all this was still fairly experimental, and that it was important to issue clear commands. His AI was still learning and it still had a hard time to interpret situations under which commands were issued. The same applied to reading moods and body language. But everything had been thoroughly tested in the LAB and based on that the designers and review board had determined that this combination of command would allow his user full control over him under any and all circumstances.
Out of pure curiosity she had whispered "sex on, gentle, sensitive. But keep it normal".
Immediately she noticed that his method of massage changed, and his hands started to wander to places that he before had avoided. She was lying on her stomach and she noticed immediately the extra attention he gave to her thighs and the area just below her bum cheeks. And then he even slid his hands underneath the towel that covered her bum and started deftly working on her left buttock.
She started to wonder if she had mispronounced "sensitive". Or maybe she had set him to "normal" with her last sentence. He definitely was more assertive than she expected.
After a minute or so he walked around in front of her to the other side she noticed from the corner of her eyes a fair size bulge in his pants. This worried her, but also made her very curious. Without hesitation he quickly worked her right buttock and then moved to her feet.
Max moved her feet apart and pulled her down on the table so her feet and lower legs were dangling over the edge. With fresh massage oil on his hands he quickly moved from her calves to her lower thighs. Cathy was now very curious to find out what would happen next. She was not worried because she could always simply turn him off.
After a minute more of delicious massage his hands crept up to just below her buttocks which made her a bit uncomfortable. She was considering using the "sex off" command when Max swept away the towel leaving her completely exposed. Her breath stuck in her throat and by the time she regained it Max was working on both her cheeks. Curiosity won out and she decided on a short "wait and see" approach.
Max showed his skills quickly and his strong oiled hands soon enough evoked some pleasurable groans from Cathy. When there were no objections his hands wandered more without losing contact with her skin. With a smooth gesture he quickly added more oil in her bum crack followed by the fingers of his left hand.
She started to get worried again when she felt his fingers gently rub her anus, and even more worried when his right hand rose up between her thighs. Before she could utter a command she felt the shock of Max' thumb rubbing her clitoris. The unexpected move caused her to sway her bum lustfully in the air and pulled out a warm groan from deep in her belly.
Because gymnastics had been the focus of her life for so many years Cathy had never experienced actual real sex. She was still a virgin. Being inwardly shy, in spite of all the performances on the matt, had not helped. Good sex education and a fear of a pregnancy that would end her gymnastics career had stopped her the few times she had come close with her on-again/off-again boyfriend and during her infatuation last year with one of the male coaches.
While rolling her bum and rubbing her slit lustfully against his thumb it suddenly dawned on her that Max could not make her pregnant. How far would he go if she let him? After all he was fully functional. Would she still be able to control him, or herself, with this accidental setting to "normal?"
She found out quickly that Max wanted to be fast and intended to go all the way. He let go of her after a minute more and she thought heard him taking of his gym shorts. This was quickly confirmed when she felt his naked hips between her feet. She raised her head to tell him to stop, but he was too quick for her.
Max reached up to her hips and pulled her backwards until her feet hit the ground. She was suddenly standing with her legs spread and her naked bum crack pressing against his hot penis. Cathy inhaled sharply but was speechless at the same time. She was caught between fear and curiosity, and all she did was pant as she felt his right-hand reach around to her front. With great skill he inserted a finger along her clit into her pussy, adding a second finger to spread her cunt lips open.
