In response to reader's comments, I have rewritten this. I am interested in hearing further comments. Thanks
( Author's note: the sections in italics are Melody's thoughts)
*****
Roger had been working at a military research facility ever since his university studies were complete. The focus of his work was nanorobos – sub cellular sized robots designed to repair human tissue. After ten years in this work he had had enough and left, taking some of the fruits of his labours. The hardware for producing the robos was about the size of a briefcase and the software could run on a standard dedicated PC.
Over time it had not been difficult for him to arrange for an extra unit to be made and lost. He had also developed mechanical mosquitoes for the introduction of robos into unsuspecting subjects for espionage purpose. The robos were so small that several thousand could be injected in one mosquito bite. He also managed to get a few of these for his own use.
The software was quite sophisticated; once the camera had determined the part of the body where the mosquito had injected the robos they could navigate to any part of the body through the bloodstream. Once in place, the robos could actually go into cells and cause them to replicate. Thus they could grow new tissues and make physical changes to the body. They could also stimulate nerve cells both in the body and in the brain.
The tricky bit was getting the mosquito to the subject. Once the robos were in it was simple. They could be preprogrammed or controlled by radio waves remotely. The subject had to be in view of the camera until the mosquito landed. The camera could be concealed in a briefcase and had a very wide-angle lens so it only had to point more or less in the direction of the subject.
In the old days, medical researchers only had the bodies of old women to learn about the structure of the human body. They were not aware that women have as much erectile tissue as men, around their vagina. These researchers were also all men so they were also not aware of the feelings women get in this area when they are sexually aroused. Women are very aware of this erectile tissue. They do not get the hard, almost painful throbbing that men get. Theirs is a gentler throbbing. Although it is purely pleasure, it is still very insistent when a woman is horny.
Roger used his instinct to choose his first subject. Melody was a waitress at his local café. She was clearly very fit, with a shapely behind and legs. Her breasts were small enough that she often wore tee shirts with no bra, her nipples small enough and generally not erect. She had a huge purple birthmark that covered one of her breasts and came up her neck almost to her chin that she tried unsuccessfully to cover with scarves. Roger noticed that although she made an effort to be friendly and cheerful to customers, she often looked sad when at rest. This was about to change.
He chose a quiet afternoon during the week to visit the café with his briefcase full of goodies. As usual, Melody was on duty, cruising around taking people their coffees, cleaning up tables. He chose a time when she was cleaning a table near to him to let go the mosquito. He could see it flying towards her, programmed to land on her neck as she bent over the table giving him a great view of her perfect ass.
He felt a twinge of desire and frustration. The mosquito landed and bit. Melody didn't feel a thing because it injected a small amount of local anesthetic first. They were in! His job for today was done.
He went home and waited. The robos worked quickly but he had programmed them to work while Melody was asleep. She woke up a different person. Her birthmark was gone; her breasts were now a generous 36D with moderately large nipples. She felt happier than usual; more carefree. She may have noticed that her lips, nipples, clitoris and cunt were more sensitive.
The robos had caused the nerve cells in these areas to replicate so there were now ten times as many. But she wouldn't notice unless she stimulated them. All the muscles of her fanny and ass area were now very well developed and toned. The robos had done some other changes that would not have been noticeable to her. They had increased the amount of serotonin normally in her brain, making her happier. They had sensitized her sense of smell to Roger's scent causing a release of serotonin in her brain when she smelled him. (Serotonin is the brain's happiness chemical). Her hearing was also changed similarly to respond to the sound of his voice. With this she would get a general feeling of happiness and sexual arousal when she smelled or heard him.
Also, the robos had stayed in her clitty and cunt, ready to stimulate all those extra nerve endings at Rogers command.
During the process of growing the new nerves the robos had done some calibration as well. This was why she had to be asleep. By stimulating her they had found the area in her brain that controlled her orgasms and gained the ability to produce these by directly stimulating the brain. He had robos in his brain that could transmit. All he had to do was concentrate on a certain image in his mind and she would orgasm. This means that he could cause her to instantly have an orgasm of whatever intensity he chose and he could cause her to keep cumming for as long as he wanted.
The next day, Melody showered as usual before dressing for work. She was reeling from the shock of the disappearance of her birthmark and the enlargement of her breasts. She was thrilled and not a little horny. Normally something she couldn't understand would worry her but this day nothing seemed able to spoil her good mood.
As she washed her breasts, the sensation of her soapy hands stroking her nipples sent thrills of pleasure rippling down to her fanny. She continued the motion of her hands down and across her taut tummy, down into her bush. Stroking in between her cunt lips, she found her pleasure center. She used her index finger to ease the hood of her clitoris back.
That's amazing…Oh yes…oh baby you feel good!
Holding the hood with her index finger, she gently stroked her middle finger down the length of her clit and back again, setting up a slow rhythm. Up and down, up and down. Each stroke sent thrills of pleasure through her.
Oh yes! That is so sensitive. So good.
She used her other hand to squeeze and knead her throbbing nipples. She bent her head down and brought one of her nipples up to her mouth chewing, sucking. Her fanny and anus muscles were pulsing in time to her strokes, each pulse feeling so, so good. Everything was so sensitive! When she eased her finger into her fanny it felt like a huge cock inside her.
Oh fuck! Is that really just my finger? That feels so good! I wish I had a cock up me – that would be so fucking good! I can't believe I'm having these thoughts. Oh but that's good!
Out again and onto her clitoris, the pace increasing, the pulsing building to waves of pleasure as she approached her peak. She cried out as she came, staggering against the wall overcome with the waves of pleasure coursing, flooding through her.
"AAAAAAAH…yes, AAAAAAAAAH…"
She sat down in the shower, legs apart, still very gently stroking her clitoris enjoying the slowly receding delicious sensations emanating from her loins. She felt like she could just keep going forever. Slowly she became aware of the time, gathered herself with difficulty, rinsed off and floated out to put her clothes on.
Usually she wore fairly loose jeans to work but this day she felt sexy. She chose her tightest jeans, the ones where the seam sat in between her cunt lips, right on her clitty. First she chose her favorite G-string panty, black and lacy. The pressure of the seam on her clit felt through the silk was just right. None of her bras fitted so she decided to go without, showing her perfect breasts off through a shear black tee shirt. With that tee shirt on, she looked sexier than if she was naked.
By the time she got to work, Melody was enjoying herself. She had only been at work for half an hour when she decided to take things into her own hands. All that walking back and forth in those tight jeans with the cloth rubbing across her ultra sensitive clitty had her in a state of constant arousal. The erective tissue around her vagina was all engorged and throbbing gently. Her nipples were rock hard and pushing out almost an inch. She couldn't remember ever being so horny before. She was a bit puzzled but was also really enjoying the stimulation. She felt happy which was something she hadn't felt in a long time.
Oh that feels nice. Just walking across the room makes me feel horny. That feels so good.
Each step she took stretched the cloth of her jeans and pulled the seam across her throbbing clitoris. This sent a jolt through her that added a spring to her step. This changed the way she walked, adding a sexy sway to her hips. Her whole body was saying "Fuck me!" with every step. She knew that if she didn't do something soon she would come in the middle of the café.