Author's note- This is my first story in a while, but I have been very busy at work so haven't had much time for writing. However after recently getting a very nice email from a reader I decided to give it another go and am pretty happy with the results. I would like to give credit to the author Admiral Squish and their story Operation K-9 as this was the inspiration for one of the main scenes in this story. I would also like to acknowledge that this story is only very loosely based on reality. I am well aware the medical procedures could not happen like this, and research scientists would not behave in the way described below. Hope you enjoy it anyway.
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Dr Rachel Addison woke up after a good night's sleep, excited about the day ahead. As one of the world's foremost experts in both male and female fertility, Rachel was very busy at the research lab that she ran, especially over the last few years.
Her newly developed female fertility treatment, ADIFEM, was currently undergoing final clinical trials with great results. She was fighting off interest from a number of large drugs companies who all wanted to take the product to market. Progress on her male treatment, ADIMAL, was also going well.
Rachel jumped out of bed sprightly and walked over to her on suite shower, catching a glimpse of herself in the mirror. She paused for a minute to contemplate her reflection. At 41 she was far from a spring chicken, but still felt she looked good for her age. She had a not unattractive, "girl next door face" with just a few wrinkles and laughter lines. At 5ft 4 she wasn't too short and her bobbed brunette hair wasn't showing too much grey yet.
She glanced down at her sleeping attire and gave a sly half smile. Rachel had recently swapped her old fashioned, sensible sleep suit for a tight white tank top and lacy French knickers. She had to admit that they showed off her body pretty well and she looked good for an older gal. She had long shapely legs, a curvaceously meaty backside and through her stomach could never be called flat; she was far from fat, with a nicely plump little belly.
She bent over slightly so the tank top gaped open a bit to show a little more cleavage than would be decent in polite company and her sly smile widened. Rachel had never been lacking in the chest department since she hit puberty, but things had changed a bit in that department over the past few years, since she had developed ADIFEM.
She had always been focussed heavily on her career, and was so sure of the potential of her new fertility drug that she had started human trials earlier than she really should have. She would never put another person in danger however, so her first test subject had been herself. She was delighted to find that the drug had successfully increased her fertility to that of a woman twenty years younger, at least based on all the tests she had done. This would be a huge benefit to woman who wanted to become mothers later in life, or even younger women with fertility problems. However the drug did have two slight side effects.
Firstly, prolonged use of the drug was well known to increase breast size on most women who took it. The drug was certainly not a boob job in a bottle, but could often boost a woman a cup size or two depending on the time of the month. Also, rather unfairly, the drug appeared to give even more of a boost to woman who had larger breasts to start with. As Rachel had been using ADIFEM every day for 3 years she had seen the largest effect, with the drug taking her already ample 38DD rack up to a full 38E or even close to an F cup during the time of the month when she was most fertile.
Rachel slowly turned side on and inspected herself in the mirror. This was that time of the month and her boobs looked the full 38F today. At 41 her boobs were never going to be perky, especially braless in the tank top, but she felt they looked very good for her age. Looking at her body in the mirror started to make her feel a little horny, and she felt the beginnings of dampness in her lacy white French knickers. Though it seemed rather narcissistic, Rachel had stated lusting after her own body ever since the drug induced changes stated to kick in. This was the other side effect of ADIFEM, a fairly significant increase in female libido, often for both sexes.
Rachel had always had a healthy sex drive, but taking the drug had increased it massively, almost to the point of distracting her from her work. She had never had the time for a boyfriend or marriage, much less children, but the increase in her libido had left her needing the services of a large number of sex toys and, occasionally, paid male (and sometimes female) company. The sex workers she paid for sex were always amazed a woman like her needed to pay for it, but Rachel found it cleaner and less complex than actually having a relationship. Also, due to her increased fertility, Rachel had to be very careful with birth control, using a diaphragm herself and making sure the men all wore condoms, as well as not actually letting them ejaculate inside her.
This was because ADIFEM neutralised the effects of all hormonal birth control methods, including the morning after pill. This was obviously not a problem for the women taking to drug to try and have children, but was a huge problem for Rachel who most certainly did not want to fall pregnant.
Unfortunately her increasing sex drive was making it harder and harder to be sensible during these encounters and the last time she had had sex with a man, about 3 months ago, she had lost control of the situation and the man had actually started to cum inside her before she realised and forced him to pull out. Thankfully he was wearing a condom and she had her diaphragm in, so no harm was done. However, she had been scared enough by the encounter to stick to sex toys, and female "friends" ever since. However they weren't really cutting it anymore. As much as she enjoyed female "company" it was just a lot better for her with a man. She knew she would probably have to risk having proper sex again before too long, as sexual frustration was beginning to affect her work.
She knew she should probably stop taking ADIFEM now it was past the full clinical trial phase, but she was still interested in the long term effects, and secretly also enjoyed the side effect, even if she would never admit that to herself. In fact she had recently increase her dose to two tablets a day just to check for any more side effects, (at least that is what she told herself anyway)
As she admired her luscious, mature body, Rachel felt herself get more and more aroused. She quickly stripped off her skimpy nightwear and jumped into the hot shower. Soon she was lathering herself up in foamy shower gel and paying particular attention to her neatly trimmed pussy and big boobs. With no support, they sagged to the bottom of her rib cage but still felt full and soft in her hands. As she got more aroused Rachel brought each large brown nipple to her mouth and gave them a little suck. This turned her on even more and before she knew it, Rachel was lying back in the shower cubicle with her legs wide open, pointing the shower jet directly onto her large, engorged clitoris. After less than a minute she felt the twinges of pleasure build to a climax and came so hard she almost passed out.
With her voluptuous, mature body temporarily satisfied, Rachel quickly got ready for work. Due to her impromptu masturbation session she was late and had to dress quickly. Firstly, she pulled on a black half cup plunge bra, then a pair of small black lace panties.
When she updated her nightwear Rachel had done the same in the underwear department, throwing out all her old boring undergarments and replacing them with sexy push up bras and sheer lacy panties. She enjoyed knowing that under her sombre professional work clothes she was wearing underwear that would be more at home in a strip club.
The panties were of very thin lacy material and the back barely covered the succulent globes of her ass.
The bra was a 38E Zlote Oko plunge by Ewa Mischalak. Today it felt a little tight due to her increased boob size but looked really good. She adjusted her big boobs in the bra till they felt comfortable and her large nipples were concealed inside the half cups. Clasping her hands along the sides of her chest, Rachel looked down at the cavernous cleavage the aggressive lift of the bra created.
"Thank goodness for push up bras," Rachel thought. "My boobs look amazing in this thing. You would never know they were 41 years old."
She pulled on a white blouse, cardigan and knee length skirt to make herself look like the professional woman she was. A pair of dark rimmed glasses and very subtly applied make up completed the picture.
After quickly eating breakfast Rachel went to take her increased dose of 2 tablets of ADIFEM, but for some reason decided to take three instead. She was not sure why she did it but couldn't spend too long thinking about it as she was running late already. Rachel then left her house for the short walk to her nearby lab.
As she walked to work the erotic thought of earlier were forced to the back of her mind as she concentrated on problems at work. While ADIFEM was sure to become a huge success, she was having a little more of a problem with her new male fertility drug ADIMAL.
She has developed a really good base drug which not only increased male sperm production by a factor of 10 but also increased ejaculate volume by a similar amount and allowed the subject to ejaculate multiple times in close succession. However there were three main problems. Firstly she had not got the correct dose figured out yet, as computer and animal models could only take her so far. The drug was also ineffective if taken orally or intravenously. For maximum effect it had to be injected directly into the base of the penis, which, while not a deal breaker for men desperate to be fathers, was far from ideal. Thirdly, and most importantly, she needed a male test subject. Her experiments with ADIFEM on herself had been massively helpful to her, but that was certainly not possible this time. However a lot of those problems were about to be resolved, and this was the reason she was so excited walking to work this morning.
