4 comments/ 56140 views/ 23 favorites The Bitch Research By: black saphire Jenna's heart was beating wildly as she looked through the microscope. The magnified cells collided madly into each other on the glass slide. Her breath quickened as she realised the significance of what she was looking at. Jenna removed the slide and inserted another from her samples. The results were similar. "Oh God! Oh wow!" Jenna mumbled softly to herself. "I've isolated it. Now I only have to test it." Dr Jenna Sinclair had spent the last 3 years of her life working on this project and now she was finally close to fruition. At 30 years of age, she was one of the younger scientists working here and definitely the youngest with a Doctorate. Jenna had always been fascinated with Biology and it had seemed like the logical choice to major in it at university. She excelled at the University of London and even before graduation she was offered a place at Cambridge to do her Masters and then her Doctorate. Almost as soon as she finished her Thesis, at age 28, she had been offered a position as a research fellow in the prestigious SimBioTech Corp in America. Her work focused on physiology, in particular the different enzymes in blood and the differences or similarities between different animals and humans. It was during the course of this study that she had stumbled onto something. Something that she had worked on in her own time and that had taken up a large chunk of her life. She had kept it a secret from the other researchers. It was mainly due to this secrecy that she was forced to work long hours, to ensure she was alone and away from prying eyes. Jenna labelled the test tubes and placed them inside her own secure receptacle. Each scientist had their own secure storage area to prevent contamination of their work as well as to ensure a certain amount of propriety. Although each scientist would be credited for their own work, it was a condition of their contract that ultimately SimBioTech would maintain first rights to any new discovery or enhancement. She took a deep breath as she placed a syringe into one of the test tubes and withdrew 5ml of liquid. She capped the syringe and unscrewed the needle before screwing a sealing cap back on to the syringe. She then slipped it into her coat pocket. Jenna sealed her receptacle and then picking up her briefcase, walked briskly out of the lab. Her heart beat a little faster as she hoped the security sensors wouldn't pick up the syringe in her pocket. She calmed down a little as she remembered she had removed the metal needle so there was no way the sensors would pick up on plastic. The only risk was the chance of a full body search and no researcher had suffered the ignominy of that had in the two years she had worked at SimBioTech. Her breath and hearbeat finally returned to normal as she walked out of the sliding doors of the facility and into her car. She noticed she was sweating slightly and Jenna turned up the air-conditioning as she drove home. Jenna's mind was working overtime as she drove, thinking about the possibilities she may have unlocked. Yet the biggest question was how the enzymes would work on a human. It may have no effect. Worse still, it could have disastrous effects. That was why she had decided that she would have to be the test subject. She would test out her discovery on herself and she would bear whatever consequences it brought. Good or bad. Her thoughts took a breather as she turned into her house. Quickly she made her way upstairs and removed the syringe from her pocket. She stared at it and felt her heart beat quicken again. Carefully she placed the syringe on the table before throwing off her clothes and heading into the shower. She felt her tight and tired muscles relax as the warm needles of water pounded her. She luxuriated in the warmth of the water as she soaped herself, feeling the grime and dirt of the day wash off her. Jenna squatted down and relaxed her bladder, feeling the wave of release as her urine sprayed out. She watched the dark yellow liquid flow along the floor and wrinkled her nose as the strong smell of her urine wafted up. The colour and smell was an obvious sign that she hadn't been drinking enough water. She made a mental note to consume more water as she soaped her vaginal lips, washing away her urine and collected secretions from the day. Towelling herself dry, she stood in front of the mirror. "Dr. Sinclair. Dr. Jenna Sinclair." She said softly to herself as she looked at her reflection. "Too brainy for the hunks and too sexy for the geeks." That had been the story of her life. At 5'7" and 120 lbs, Jenna cut a very attractive figure. She had been a gymnast at school and she still worked out regularly. She smiled as she remembered how, when she was in her prime, she could put her ankles behind her ears. Pity she was still a virgin then and didn't use it to her benefit. Jenna was still pretty lithe and flexible and she was sure if she tried, she could do it again. There just hadn't been a reason of late to have her legs in such a splayed position. Her body was well proportioned, not like the gymnasts of today that had muscular upper bodies. Her breasts were firm and round and she was proud of her 34C bust. Her hips had just the right amount of flare to them and her butt was nice and tight. Jenna turned this way and that as she admired herself. She noticed how pale her skin had become with all the indoor work and made another mental note to spend more time out in the sun. She cast her eyes down to the table where the syringe was and she took a few deep breaths. Her breasts rose in time with her breaths and she sat down slowly. Jenna pulled her shoulder length, black hair away from her face and tied it into a pony tail. She sighed as she thought of the gravity of what she was going to do. The fine hairs on her hands were bristling with nervousness as she picked up a cotton swab and cleaned the reverse side of her elbow with alcohol. She deftly picked up the syringe and popped the cover, screwing on a new needle on to it. Jenna looked at herself again in the mirror. "This is it Jen." She said softly as she pushed the needle carefully into her arm and plunged the syringe, filling her vein with the enzymes. Her arm felt warm as the enzymes flowed through it but that was only to be expected. She withdrew the syringe and discarded it carefully, flexing her left arm as she did so. "No turning back now." She said to herself again. "Its been done...." **** ** ***** Jenna slept soundly that night. So soundly that she woke up half an hour late. "Damn!" she grumbled as she looked at the clock. After a quick wash up, she pulled on a fresh pair of cotton panties and a lacy white bra. Her firm, ample tits allowed her to wear those thin lacy bras she was so fond off. They enveloped her breasts snugly and provided just enough support and modesty yet allowed them to jiggle as she walked. She threw on a beige blouse over her black skirt and wrapped a brown sweater around her shoulders. Fortunately she wasn't one for too much makeup and in fact didn't really need it at all. She only really put on makeup when she was going out with the result that she looked like a Goddess. A simple touch of lipstick, like she swirled on this morning, was enough to bring out her gorgeous features. She pulled her hair back together and tied it up into a pony tail with a scrunchie and she was ready to go. Jenna jumped into her car and sped off, hoping she wouldn't make it too late to work. Fortunately traffic was light and she pulled into her parking lot only about 5 minutes late. She smiled and waved at Stuart, who had himself just gotten out of his car, as she turned the ignition off. Stuart made his way around to the Jenna's side of the car, standing a little away from the door. "Morning Jenn." He smiled warmly as his eyes darted to Jenna's legs, swinging out of the car. "Hey." Smiled Jenna as she swung her knees out of the car, keeping them pressed firmly together. She was well aware where Stuart's eyes were focused and she wasn't going to give him the pleasure of looking at her knickers. "Looks like we're both running a little late today." "Yeah, well fortunately the lab isn't too fussy about time." Stuart replied, finally looking up at her face. "Busy day today?" "Depends what the bosses have for us." Jenna responded. She wasn't taking any chances of her secret research getting out so she would have to play dumb, as if she wasn't working on anything special or different. "Anyway, I have to run. I'm already late for a meeting." In actual fact, there was no meeting. She just wanted to get into the safe confines of her lab and run some more tests. She turned to look at Stuart again as she walked away from him. She caught him staring at her shapely, swinging ass as she walked. Poor guy, she thought to herself as she made a mental note to be nicer to him. She liked Stuart and would have spent more time with him if not for all the time she spent on her research. Stuart was one of the nicer scientists in SimBioTech. He hadn't been accorded the title of researcher yet but in all essence, did practically the same amount of work as all the other researchers. He always had a smile on his face and Jenna had to admit that his face was pretty nice too. In fact, Stuart had a nice physique too. Just under 6 feet tall, he was blessed with jet black hair, broad shoulders and twinkling brown eyes. He also had a butt that he joked 'most women would die for.' Jenn had never worked out if he meant that his butt was so nice that women wished they had one like his or if he was making reference to his sexual prowess. She smiled at this thought as she reached her private lab. She entered and locked the door behind her. She set up her microscope and drew some blood from her arm. Her heart started to quicken as she analysed her own blood. There was no mistaking it. The enzymes had combined with her own blood. She tested her temperature. It was normal. Her blood pressure was also normal. So far all her vital signs were normal. Jenna jotted down the measurements in her notebook along with sketches of the patterns reflecting from the microscope. She continued to note down the measurements for the next five days. There were still no other signs of whether the experiment was working or not. Six days after injecting herself with the enzymes, Jenna awoke feeling thirsty. Her mouth and throat felt dry the same way it did after a night of heavy drinking. She gulped down two glasses of water before she felt herself quenched. "Hmm...no alcohol and yet I feel dehydrated" she thought to herself as she searched for a pen and paper to record this effect. Her body felt warm and flushed as well and Jenna slipped a thermometer into her mouth. Her temperature was normal but she still felt flush. Two side effects seemed to be happening. "Maybe I just need a shower." She thought to herself. Jenna slid into the bathroom and pulled of her clothes. As she peeled her panties off, she noticed that the gusset of her panties were clotted with her secretions. She inspected herself, pulling aside the hairs of her pussy to find her vulva red and swollen. Side effect number three! Or was it three AND four? She decided to note it down together as "a large amount of vaginal secretions coupled with redness and swelling of the vulva." It was at the exact moment that she wrote this finding down that she felt her pussy muscles spasm slightly, sending a quiver of excitement shooting through her. Her nipples grew stiff and hard, more stimulated than she had ever known them to be. Jenna noted down this reaction as effect four. "Dehydration, feeling warm and flush, a wet and swollen pussy and now erect and nipples" she said quietly, reading back her notes. She softly brushed her erect nipples and noted they were extremely sensitive. Jenna turned on the shower and luxuriated in the hot spray. She soaped herself vigorously, paying special attention to the thick bush of hair covering her pussy. The hairs were matted with her secretions and she soaped her mound thoroughly. She let out a soft moan as her fingers brushed against her clitoris. Like her nipples, it was hard and engorged. She teased her clit lightly before allowing her fingers to dip into her slit. It was hot and wet. Jenna bit her lower lip as she moved her fingers inside of her, thrusting her hips back and forth as she fucked her fingers. "God! I'm so horny!" she moaned as her fingers danced wildly within her. She turned to face the jet of water, thrusting her hips our so that the jet of water pounded on her clit. "Aahh....oh yess....ohhh...." she cried out. She had three fingers inside of her now, digging deeper into her seething hole. The warm jet of water on her clit was sending shudders through her body. She was moaning loudly now as her other hand moved up to clutch her breasts. Her body suddenly tensed and she let out a scream of pleasure as a hot wave of release engulfed her body. "Yeeeaaggh....ohhhhh......oh yessss....yesss...oh awwww!!" Jenna closed her eyes as her body quivered and shook with orgasm. She pulled out her fingers and noticed they were caked in thick white goo. The smell of her sexual arousal was thick in the air, even with the shower still running. With a weak smile on her face, Jenna finished washing up and towelled herself dry. As she opened her drawer to get her undergarments, she realised she was still horny. Not only was she horny but she was also feeling extremely sexy about herself. She chose to dress to fit her mood, taking out a seldom used frilly lace white panty. She picked out a lacy sheer white bra and put that on, noticing that her nipples were still erect and poked out hard at the bra cups. Jenna then picked a short, flared black skirt and a thin white blouse. The lace of her bra showed through the white blouse and her erect nipples made dents in the blouse. This was definitely out of character with Jenna but she was feeling so sexy, she didn't care what the others at the lab may think of her. She decided to brush her hair out today rather than tying it up in a pony tail like she normally did. She put on a little lipstick as usual and admired herself in the mirror. Just letting her hair out changed her look considerably. "Won't they be surprised at the lab." She sniggered to herself. As she drove to work, her whole body seemed to be on fire. Her extra sensitive nipples seemed to brush against her bra with every movement and her pussy felt like it was releasing liquid lava. The lacy material of her sexy panties didn't help with its lack of absorbency and she could feel her juices coating her thighs. As she pulled into the parking lot, she noticed that Stuart had just arrived as well. "I wonder if he times his arrival to match mine." She thought to herself, then dismissed it as she realised there were many times that she had reached work when Stuart was no where to be seen. She saw Stuart walking up to the car door and she smiled wickedly to herself as she flung the car door open. She placed one leg outside, allowing her skirt to ride up while she pretended to be looking for something. Her legs were splayed wide open and she knew Stuart would be getting a good look at her sexy panties. She held her legs open just long enough to appear that she was doing it unconsciously before she slid the other leg out daintily. Jenna looked up at Stuart and smiled sweetly. "Morning Stu." "Uh..yea. Hi. Morning!" Stu replied, trying to avert his gaze. Jenna glanced quickly at the crotch of his pants and noticed it was tented up slightly. "Mmm...so I gave him a hard-on" she laughed quietly to herself. "You look different" Stuart said, rather lamely. "It's my hair." She replied, teasing her long locks. "I let it down. You like it?" "Uh Yeah. You look good" Stuart replied, fumbling his words as he stared in awe at the new Jenna. 'But it's not just your hair, there's something different about you." "Really now." Jenna giggled. "Maybe we can discuss it further sometime. I'll give you a call." She didn't even wait for a response but just sashayed off to her office, leaving Stuart staring at her wiggling hips. She walked confidently to her office, noticing the appreciative looks she got from her male co-workers and some bitchy looks from some of the women. Once in her office, she checked her temperature and blood pressure readings. They were both normal. She took out her notebook and jotted in another entry – "Rise in confidence." That made 5 effects. She was still feeling all the other effects, especially the hot flushes. Jenna locked her door and pulled her skirt up. She felt her panties – they were soaking! She pulled down her panties slightly to inspect her pussy. It was even more red and swollen than this morning. She made more notes and compared her notes to her research. The effects were in tandem with what was expected, especially the vaginal secretions and swelling. And she was getting more and more horny by the second. The mornings release had hardly satiated her and on the contrary had only managed to stoke the fires. Jenna decided to focus on her work. She was a little behind on her actual work assignments having gotten carried away with her own private research. She unlocked her office door and sat down to finish off two reports. The work helped to keep her mind away from her body's lustful cries but the heat emanating from her loins kept sexual thoughts perpetually playing in the back of her mind. Just as she was getting finished off one report and was about to check on her bodily readings, Jake Watson walked in. Jake was the Chief Executive Officer of SimBioTech. A chemist by training, he had devoted many years of his life to research in Universities and had finally moved into the more lucrative area of private funded research. At 56, he was extremely distinguished looking and still had a trim figure. "Hows it coming along Jen?" he asked "Pretty good Jake." Jenna replied, "almost finished off the Digestive Probiotics research." "You look kind off flushed." Jake said with concern. "Are you alright?" "Y-Yes." Jenna responded, a little too quickly she realised. "Everything's fine." Jenna realised that each time she looked at Jake, her breasts started to tingle. Suddenly her back seemed to arch and her hips jerked outwards. Jenna made a conscious effort to control her spasms. Then it happened again, as if she was thrusting her hips in a dance. Jake was explaining something to Jenna but her mind was too focused on controlling her spasming legs. She realised that each time she looked at Jake, one of her legs spasmed. To make it worse, the tingles had spread from her breasts to her pussy. She also noticed that her sense of smell seemed to have become extremely acute. Jake's cologne teased her nostrils and she could even smell his musky sweat. The hot flushes seemed to envelope every inch of her body and all her senses seemed to be heightened. "You smell good." She heard herself say. Her back and hips were spasming even more now and she was surprised Jake didn't seem to notice. She could smell herself too. The whole room seemed to smell of her sexual juices. "Uh..Thanks, I suppose." Jake said, confused at this sudden compliment from Jenna. "Is something wrong Jenna?" "N-no... I mean.... No" Jenna muttered. Her mind had become cloudy, filled with a desire that she could no longer control. Her body was craving fulfilment although her mind was telling her that she couldn't do anything. Not here. Not with Jake. "Jenna?" Jake had come forward and had placed his hands on Jenna's shoulders. "What's wrong? Your hips seem to be twitching. Is everything okay?" "Uh.. yes... I mean no. Oh God you wouldn't understand." Jenna cried, trying desperately to control her feelings. Her body was slowly taking control over her mind. The Bitch Research "Tell me. Maybe I can help" Jake said, still confused. Jenna buried her head in Jake's shoulder, her arms clutching his tightly. "This stays between us." Jenna hissed. Her body had taken over now. She needed it and she needed it now. She needed to be fucked. "Yes, of course" Jake replied. "What is it? What's wrong?" "Fuck me. Fuck me now. Don't ask questions, just fuck me!" Jenna pleaded. At the back of her mind she knew this was wrong and that she shouldn't be doing this. Not here and most certainly not with Jake but she couldn't help it. Jake was not one to ask questions when given the opportunity like this. He had spent many days secretly checking Jenna out and fantasising about her. Yet, he would never make a pass at her or do anything to jeopardise their relationship. But her asking him to fuck her, in fact almost pleading to be fucked was a different thing altogether! He unzipped his pants slowly as Jenna cleared the table with one sweep. She unbuttoned her blouse and lay on the table. Jake took in a deep breath as he saw how erect and long her nipples were. Raising her hips, she pulled her skirt and panties down in one smooth move. Jake had removed his pants now and his cock was stiff at attention. He leant over to lift her legs and Jenna helped by spreading them. He looked at her red swollen pussy and let out a low grown. "My God! Look at how swollen you are!" Jake cried out. "and your soaking....!" "Just fuck me Jake. Please! I need it." Jenna pleaded. Jake slid his cock slowly into her hot seething pussy. He had never felt anything so tight before! Although she was so well lubricated, her pussy was tight and hot. A hot, wet, tight cunt! Jenna hissed as she felt his cock spear its way slowly into her. She could feel every inch of his cock separating her swollen pussy walls. It was pure pleasure as she felt his hairy balls finally smack against her vulva. "Fuck me Jake. Fuck me hard." Jenna moaned. "Don't be gentle with me. Just fuck me!" Jake needed no further prompting. He grabbed her shoulders as Jenna wrapped her legs around his ass. He started thrusting deep and hard into her, knocking the breath out of her with each thrust. Jenna moved her hands upward to remove Jakes hands from her shoulders. She placed them on her breasts, urging him to squeeze them as he fucked her. His hands covered her breasts and he squeezed them. He pinched her nipples hard, eliciting a sharp cry from her. He grabbed her breasts and used them as leverage as he sawed in and out of her pussy. Jenna's mouth was wide open in an 'O' as Jake hammered hard into her. She drummed her heels into his ass, urging him deeper and deeper into her. "Aaooooohhh....yesss...yessss....fuck me! Fuck me! Fuck me hard!!" She cried out. All sensation was focused in her battered cunt and her whole body felt like it was nothing but a big, pussy with a thick cock satisfying it. "Cummm...gonna cummm....cum with me...please....cummm!!" Jenna mewled, almost incoherently. Jake could feel the spunk building up in his balls and he thrust harder into the beautiful girl lying like a whore under him. "Unnh...gonna cummm" Jake cried out. "Fill me! Fuck me and full me with your cum" Jenna wailed. "Fill me like the bitch I am!" Her gutter mouth was all it took to drive Jake over the edge. He slammed into her and his cock throbbed and spasmed as he shot his load into her. "Oooohhhh Yeaaaahhh...yessss...." Jenna cried out as her own body spasmed and shuddered with ecstasy. She felt her pussy clamp down on Jakes cock, milking every last drop into her boiling pussy. Her pussy seemed to clamp and spasm many times, leading her to another mini orgasm. Jake stayed deep within her until her pussy stopped clenching and he slowly withdrew his cock. He looked down at her pussy hair all matted with both their juices. "That was so hot Babe!" Jake enthused. Jenna smiled weakly up at Jake. "Thank you. You don't know how much I needed that." One hand moved automatically to cover her leaking pussy while she draped her arm ove her breasts. The attempt at modesty didn't go unnoticed and Jake averted his eyes as he pulled on his pants. As is often the case after hot, unplanned sex, reality set in and Jake started to wonder what had really caused this sudden sexual wantonness from Jenna. "Um..Jenn? What exactly just happened?" Jake asked tentatively. "W-Why did you need it so bad?" "Shhh!" Jenna replied. "Please. No questions and please keep this between ourselves. Someday I hope to be able to explain all this. For now, please just consider it a favour among friends. Okay?" "Um, yeah. Okay." Jake responded. " I suppose it's the least I can do. Um..call me again if you need help." He continued lamely, trying to make a feeble joke. "Anyway, I suppose I should get going." Jake paused at the door to turn back and feast his eyes once again on the nubile figure lying on the table. Jenna didn't respond as she watched her boss walking out of the lab. She pictured what a sight she must make, lying with nothing but her blouse hanging open off her, with her cunt dripping cum. She reached backwards for some cotton swabs and cleaned herself up before swinging off the table and heading into the toilet. She was thankful that each lab had a private toilet and she was able to fully clean herself up without leaving the confines of her lab. After cleaning herself up she made more notes, adding in her heightened smell and spasming back and hips. That made seven side effects. And of course her increased sex drive – but that was the main purpose of the experiment! Jenna consulted her research again, poring over her notes. She finally found it. Her spasms of the back and hips were a signal trait known as the Lordosis Behaviour. It caused the spine to arch downwards, making the genitalia elevated and more easily accessible. Obviously the experiment was working. She was displaying all the traits of estrus. She recalled the careful study that she had done. How she had carefully extracted the blood of cats and dogs and then spun them in a centrifuge. This had enabled her to isolate and then combine the enzymes that she required. After controlled tests with lab rats and special computerised simulations she had injected herself with it. And now the results were proving spectacular. She was a bitch in heat! She made a mental note to fuck on her fours the next time, since she was displaying acute signs of Lordosis. She imagined herself on her fours, her hips pressing themselves downwards involuntarily, awaiting a cock to take her from behind. Jenna felt a gnawing in her stomach as she thought about getting fucked again. She had really enjoyed the fuck with Jake. The enzymes had altered her physiology to make it the most sensational fuck she had ever received. Even though she was still feeling horny, she knew she had to see how much she could control herself. Perhaps she had injected herself with too strong a dose. Briefly she considered taking the antidote. But if she did, she would never know how far she would go and how to perfect her experiment into a drug. A drug that would make her millions! She had only one concern. Estrus, or the condition of a bitch in heat, lasted anything from 4 days up to 15 days!! If she was so horny on the first day of the Estrus Cycle, could she last for 4 days? And what if it went up to 15 days? She knew however that she had to see the experiment through. She was a bitch in heat and she would stay in heat for as long as she could! The rest of the day passed by in a blur. She kept herself busy with her work research as well as doing more research into Estrus and documenting her own reactions to the experiment. Experiencing estrus was by far more meaningful and produced far more substantial data than anything she had read. Sexual urges wracked her body every time she took a break from her work and so she concentrated hard on her work and on controlling herself. Soon it was time to go home and with a sense of relief, Jenna locked up for the day. She had a quick dinner outside and then proceeded home. On reaching home, she prepared herself for her shower and performed her self examination again. Her panties were wet with her juices and her thighs were crusty where her secretions had dried up. There was thick globs in her panties that she figured were a mix of her juices and Jake's semen. Her vulva was still red and swollen. Jenna briefly considered shaving her pubic hairs but decided she had better not add any extra factors of stimulus to the experiment. Jenna showered and washed herself thoroughly. She put on a fresh, clean pair of panties and continued with more documentation if the days events. Tired out and trying to fight the urge to play with herself, Jenna fell asleep. Jenna awoke just before her alarm sounded. Her hands were between her legs and her panties were soaked through. Jenna recalled vividly the dreams of the previous night. It had been one long fuck fest with different partners. Partners who didn't seem to have faces but she could remember their cocks piercing into her. It was like one long porno movie in which she was the main actress. No wonder her panties were so thoroughly soaked. "Day two" she mumbled to herself. "It hasn't even started yet and I'm already so fucking horny." She showered and dressed herself, again picking out sexy clothes to suit her mood. She went with black lace panties, a tight red knee length skirt and a form fitting brown blouse. She decided she wasn't going to wear a bra today just because she felt like it. She wore her hair brushed out again and drove to office. She was early today and there was no one in the car park when she got in. She noticed her sense of smell had increased further and she could pick up smells from almost 50 meters away. She also noticed that she could distinguish smells a lot better. In fact for the better part of the morning, she noted down who was going past her door purely by their smells. She smiled to herself as she picked up Susan's scent mixed with the distinc odour of semen and pussy juice. Susan had been fucked in the morning before coming to work! Jenna managed to keep her raging lust in check, primarily because she stayed in her office the whole day, away from the male species. She realised that the male scent drove her crazy, especially in close range. Even behind the closed doors, she could smell the men when they walked past and her body would start to ache with lust. Her pussy would secrete even more juices and her nipples would ache. She noted all this down of course in her little note book. By the time the clock signalled the end of her working day, she was a soaking mess. Still she prided herself in the fact that she had managed to maintain control and had not just given in to her lustful feelings. One thing she did notice though was that the more she deprived herself of succumbing to her lustful needs, the more confident and brazen she became. As luck would have it, Stuart was leaving at the same time as Jenna. She cursed softly under her breath as she knew she would have to be in close proximity with a man – something she had been trying to avoid. "Hey Jenna!" Stuart called out. "Didn't see you the whole day." "Hi Stu," Jenna smiled, groaning inwardly as she felt her nipples engorge and her pussy start to drip. She noticed Stuart staring at her chest and she knew that he was looking at her protruding nipples, especially since she wasn't wearing a bra. Jenna's head felt light as she chatted with Stuart. She seemed to be on remote control and was obviously capable of carrying out a sensible conversation, although she really didn't know what she was saying. Her nostrils were picking up the strong pheromones emanating from Stuart's body. She could smell his sweat as well which was turning her on so much. And what was that? She could smell the odour of sexual excitement on him. She couldn't resist it any longer. She had to act on her heat. "Would you like to come home with me?" She asked out loud suddenly. "Just follow my car." Not even waiting for an answer, she jumped into her car and drove, noticing that Stuart had quickly followed behind her. She drove carefully yet quickly back to her place and ran inside, leaving the front door open. She knew she was behaving like a brazen hussy, but she couldn't help it. She peeled off her clothing, only leaving her panties on and walked back into the living room. Stuart was standing looking dumbfounded as Jenna knelt before him and undid his trousers. The sweaty, sexual smell of his crotch sent spasms to her pussy as she opened her mouth to take his cock in. Stuart groaned as he watched Jenna swallow his cock. She gave his cock a few good sucks before she pulled off him and sat on the couch, legs splayed. "Lick me Stu." She begged. "Lick my pussy." Stuart was not going to question his good fortune. Here was gorgeous Jenna, someone he had been trying to date for the last few months, begging him to lick her pussy. He knelt at her feet and peeled off her panties. He was surprised by how red and swollen her vulva was but even more so by how much juice there was dripping out of her. Stu leaned forward and licked along the furrow, from her ass right up to her clitoris. Jenna jerked spasmodically as his tongue ignited more fires inside her. "Oohh yesss....Oh Godd...lick me. Don't stop....yessss!" She cried out. Jenna lifted her legs backward, almost in a tuck and offered her pussy up to Stuart. His cock lurched in his pants seeing Jenna in such an obscene position. Her feet were practically behind her ears, offering him unobstructed access to her quim. He licked harder and faster, dipping his tongue deep into her gash. He scooped up her juices with his tongue, enjoying the pungent yet fruity taste of her. "Mmmpph...mmmpphh..ummmm..yeeeahhh!" Jenna moaned loudly as she lifted her hips to Stuarts sucking mouth. "That's it! Yes...Yes...suck my cunt...Oh Yessss!" Her body started to tremor and her screams grew louder as Stuart licked with wild abandon. He face was glistening with a mixture of his saliva and her juices. Jenna suddenly bucked upward and screamed loudly as her body spasmed wildly in orgasm. "Oooaahhhhh yyyeaaggh.....Godddddd" She screamed out loudly, enjoying the wild orgasm tearing through her body. Her thighs continued to shudder and tremble as she released her legs and brought them back to ground. She touched Stuart's cock which was hard as rock. Jenna stroked it slowly as she turned herself on the couch and raised herself on all fours. "Now fuck me." She practically commanded. As she said this, her Lordosis reflex kicked in and automatically her back arched downwards, lifting up her hind quarters and offering her gaping pussy to Stuart. On her fours, her pussy was perfectly aligned with Stuart's cock. He grabbed her hips and with one lunge forced himself inside of her. "Unnnhh...Yesss!" she cried out as the hard rod of flesh impaled her. "Fuck me! Fuck me hard!" Stuart ploughed his cock into her throbbing pussy. Each inward stroke caused Jenna to grunt out loud and his cock made slushing noises as he rammed it into her soaking pussy. Stuart's cock was encased tightly in Jenna's swollen pussy. She started moving her hips back at him, urging him further into her. Stuart suddenly stiffened and rammed hard into Jenna. "Ah..Ahh...gonna cummm! Aaahhh" he moaned. "Nooo! Noooo....Oh god no..." Jenna wailed as she felt his cum splattering her insides. "Damn you, I haven't cum yet." "I-I'm sorry" Stuart apologised as he felt his cock softening inside her. "You were just so hot, I couldn't help it. I'm sorry." "I'm so hot Stuart. So horny." Jenna cried, almost in tears. "Do something, stick your fingers in me, something! I need to cum!" Stuart looked at Jenna's body, throbbing and spasming in need. She wasn't lying and she wasn't just horny. This was different. She must be on some kind of drug Stuart reasoned. Jenna was mewling incoherently now, filthy words coming out of her mouth. Staurt felt his cock rising again but it still wasn't hard enough. He looked around the room and found a candle sitting in its stand. He reached over and grabbed the candle and stuffed it into Jenna's pulsating cunt. "Ohhhh....yeah....dont even tell me what it is...just fuck me with it!" Jenna squealed. Stuart fucked her with long, slow strokes of the candle. He noticed that her juices were dribbling down her thighs. His cock stirred more wildly this time. A few more strokes of the candle and he was back to being rock hard. Jenna was moaning and thrusting her hips backward. He timed his withdrawal of the candle and insertion of his cock perfectly. "Awww...that's your cock! I can feel the heat. God Stuart, its so hard.!!!" Jenna squealed in delight. Her backward thrusts became more intense as Stuart wrapped his arm around her waist. His fingers danced across her clitoris as he sawed his cock in and out of her. Jenna was shaking her head from side to side, crying out in ecstasy as her body responded wildly to the sexual gratification. She raised her head and moaned loudly as her body tensed. "Yeeaaggh...Cumming...Oh Stuart I'm cumming....aawwwwww!" Her entire body started to convulse and shake. Stuart stopped fucking her briefly as he felt her pussy clamp on to his cock. Her pussy squeezed and milked his cock and just as it relaxed, he started fucking into her violently again. "That's it Stuart! Don't stop! Whatever you do, don't stop! Keep fucking me hard! Oh God I'm gonna cum again.....!!" Her body shook and convulsed again but this time Stuart didn't stop fucking her. He ploughed his cock deep and fast into her trembling body. She started to gurgle as wave after wave of a powerful orgasm shook through her. Just as she came down from one orgasm, another one shook her body. She kept on cumming as she finally felt Stuart slam hard into her and his hot semen scalding her pussy walls. She collapsed hard on the sofa as Stuart lay buried in her. Slowly she felt him pull out of her and she could feel his cum dripping out of her. Her body was still trembling and she buried her face in the sofa, enjoying the afterglow. "Stay with me tonight Stuart?" She asked softly. "I can't be alone. Please stay with me." **** **** **** Jenna got fucked another 3 times that night. In between their sexual activity, Jenna explained everything to Stuart. She explained that she needed someone to stay with her and keep and eye on her for the next few days until the Estrus wore off. She explained that she didn't know how far her 'heat' would take her but that she wanted to see it through to completion. Part of the deal was that Stuart would get to fuck her while he stayed with her. He had to understand though that she may be getting fucked elsewhere as well. She couldn't help herself from fucking others – not while she was on heat, and not while she wasn't willing to sacrifice the experiment. Stuart was supportive. After all, who ever imagined he would even get the chance to fuck her once, let alone on demand? The next three days went off well for Jenna. Her sense of smell hadn't increased further and she was coming to terms with her new found lustiness. Knowing she had Stu to take care of her needs kept her in check. She would fuck Stu in the morning before going to work and then at least twice throughout the night. She was amazed that she didn't feel tired with all the sex. Even more amazing was that she didn't feel sore either. Her pussy seemed to recover quickly, ready for more. Stu wasn't coping too well though. He was getting tired and his cock was sore with all the activity. He was almost reaching the stage where he was finding it hard to accommodate Jenna, but somehow, he still made it. The Bitch Research Day seven of her Estrus cycle came along and Jenna saw no signs of it receding. Stuart was a little tired this morning but she needed some satisfaction so they ended up doing a 69. She managed to cum twice on his mouth and fingers before his cock erupted in her mouth. Being Saturday, Stuart rolled over to have a snooze while Jenna went to wash herself up. During her regular morning inspection, she was surprised to find her vulva now a fiery red. It was as almost as if it was raw and scalded. She felt no pain however. Her secretions were also much more, practically coating her pussy and thigh. There was a strangely sweet smell emanating from her pussy as well. Her nipples were not just sensitive today, they were practically aching. Jenna wasn't sure if her pussy was really emanating the sweet aroma or if it was just her heightened sense of smell that was picking it up. Her heart rate was also higher and the hot flushes seemed to be intensifying. Jenna wanted to ask Stuart if he could get the sweet aroma too but he had already left to go home for the day and wasn't due back till later at night. Jenna noted everything down in her notebook. Jenna went outside to take out the garbage and she spied her neighbour sitting in his porch across the street. Mr Johns was a sweet older man, almost touching 60. His wife had passed away a few years ago and he lived with his three sons. The boys all worked in the construction company that their father had set up. Jenna hardly saw the sons as they always worked long hours and when they weren't working they were out with their friends. It was useful having Mr Johns across the street as he always helped her with minor repairs and fixing appliances. She waved cheerfully at him and he smiled and waved in return. As soon as he acknowledged her, she felt a knot in her stomach and that all familiar feeling. Just as quickly, she realised that she was extremely horny. She bit her lip and looked down at the ground as she put the garbage in the bin. Still averting her gaze, she ran back into the house. She tried to call Stuart but she couldn't get him. She was almost feverish with lust now and the thought crossed her mind if Mr Johns might just be able to fix her appliance. Jenna knew she was traversing dangerous territory but she was so horny. She needed to get fucked. She quickly changed into a short skirt and a tube top. No bra, no panties. She picked up an old toaster that had been damaged previously and she ran out and across the road. Mr Johns was no longer on the patio and Jenna hoped he was inside. She rapped on the door and waited, her body already craving sex. She heard footsteps and Mr Johns opened the door. "Well hello Jenna." he said. "Bright and early this morning huh. What can I do for you?" "Uh. This toaster..." Jenna mumbled. "Seems to be on the blink. I was wondering if you could look at it?" "Why sure. Come on in." Mr Johns said, his eyes growing wide as he noticed her nipples protruding out of her tube top. His cock started to swell in his pants as he led her to the sofa. "Take a seat. Can I get you a drink?" "N-no. I'm fine thanks." Jenna mumbled. She parted her legs slightly, trying to give Mr Johns a look at her pussy. If he didn't take the signal soon, she would just have to tell him the truth. Tell him how she needed to be fucked. Mr Johns could see right up her skirt to her hairy pussy. He swallowed hard and carefully placed the toaster down. He looked hard at Jenna who looked at him with a glazed look in her eyes. Mr Johns knew that look well. His wife often had that look after he had sucked her and just before she begged him to fuck her. "Stick that hard cock in me lover" she would say to him. His cock throbbed harder as he reached down to grab Jenna's hand. "Its not your toaster that needs fixing is it?" He grinned at her, as he pulled her up. "I don't know why and I'm not gonna ask, but perhaps today is my lucky day." Jenna nodded almost in relief. Pulling herself away from Mr Johns, she pulled her tank top over her head in one smooth motion. Her breasts shuddered as her shoulders came back down. "Take me Mr Johns. Do what you want with me." "Call me Dave." He said softly as his hands reached out to cover her breasts. "No need for formalities if were gonna fuck." He lowered his head to suck her nipples and Jenna's responsive moan caused his cock to jerk harder in his pants. Dave peeled her skirt off her and pulled her to him. He kissed her softly and she melted into his arms. Her lips parted, kissing him back urgently. His tongue slipped into he mouth and teased her own tongue. They kissed like teenagers and Jenna felt her already wet pussy turn leaking copious amounts of fluid. She was pleasantly surprised that Mr Johns was kissing her and not just fucking her like the other two men had. She knew she didn't need the foreplay when she was in such a state of arousal but it was nice. And it was nice of Dave to take the time to seduce her when it was apparent she didn't need any seduction. Jenna's hands moved to unbutton Dave's shirt and then to pull down his pants, all the while still kissing him. She was mewling softly with his kisses as she pressed her naked form against him, her nipples brushing his hairy chest. She slid down his body, giving it small kisses till she reached his stiff cock. She fisted it in her hands and knelt on her fours. Again the Lodorsis reflex kicked in with her hips arching upward to offer her wet pussy to Mr Johns. He had never seen anything so erotic or sensual in his life. Normally he had to work hard on a woman to get her so worked up but this beauty was offering herself up to him. He positioned himself behind her and slid his cock into her gaping hole. It was wet and hot and enveloped him nicely. He let out a low groan as he worked himself into her. "Mmm...that feels so good Mr Jo..uh Dave." Jenna sighed. "So good." Dave moved in and out of her slowly, enjoying the warm wetness. Although she was well lubricated, she still felt tight. He began to thrust into her deeply now, relishing the slapping sound as his groin met hers. He could also hear the soft squishy sounds her pussy was making as he fucked into her. Jenna lowered her elbows to the floor, bending her upper body and her head down to offer her ass even higher to Dave. "Uhh..yess..Uhh...oh fuck...oh....unnnh.." She groaned softly. "What's this?!" The voice that called out interrupted their pleasure. "Looks like Daddy's getting some nooky." Jenna looked up to see Danny, Simon and Andrew – all at home for a change – standing in front of her. Dave had stopped fucking in and out of her but was still buried deep in her cunt. "Oaahh...Don't stop Dave. Please Don't stop." Jenna cried out in frustration. Her hands reached upwards, urging the boys closer to her. "I'm gonna cum." Dave moaned. "Can I cum in your mouth?" "Then one of you boys fuck me!" Jenna cried out, almost pleading. It didn't take the boys half a minute to undress. Dave moved to Jenna's mouth and she took him in willingly as Danny entered her from behind. She could taste her juices on Dave's cock and it turned her on even more. Danny wasn't as gentle as his father and he fucked her fast and furiously. It was exactly what Jenna needed and she hissed and groaned on Dave's cock. Dave didn't last too long and soon spurted his load into her mouth. He didn't have much cum for an older man but his taste was strong. She swallowed every drop, feeling it hot in her stomach, as Dave's cock slowly deflated and withdrew from her mouth. With her mouth free, she was able to concentrate on the feelings in her pussy again. "God yes! Fuck me ....fuck me good." She screamed. "Fuck me Danny!" Andrew had moved to her mouth and she licked his cock softly. He urged himself forward trying to force his cock through her mouth but Jenna turned her head. "No, please. You can fuck me too. All of you can fuck me!" She cried out, not wanting to waste a cock in her mouth. Danny was dripping with sweat as he finally let out a soft cry and plunged deep into her. "Oh fuck Jenna... Fuuucck!" Danny cried. His cock swelled and he withdrew it to spew his load all over her back. The hot liquid splashing on her back ignited her own fires and Jenna let out a loud groan as her body throbbed and convulsed. "Cover me with your cum! Ohhhh I'm cummmminggg" Her body was still thrashing as she felt another cock enter her. This was thicker than Danny's but not as long. She looked around to see who it was to find it was Andrew filling her with his cock. Andrew's cock spread her nicely and she started to cum again after a few strokes. "OOohhh aaah.....yyyeeeaaagghh!!" Jenna screamed." So good...just keep fucking me! Oh yessss!" She was going wild with sexual delirium. Her entire being was focused on sex and nothing else. Every fibre in her craved with sexuality. Andrew was still fucking her and she still craved more. She turned to Danny. "Let me suck your cock." She cried out. "What about me??" Protested Simon. "Fuck my ass!" Jenna moaned, completely consumed with lust. "Fuck all my holes! Just fuck me!" Danny moved forward to her mouth and Jenna sucked and slurped on his semi flaccid cock. She felt Andrew withdraw from her pussy and then position her body so that he entered her pussy from underneath. She felt Simon's cock pressing against her asshole and she sucked hard on Danny's cock as she felt Simon press hard against her ass, forcing his cock into her. Jenna screamed loudly but her scream was muffled by Danny's cock. Her ass felt like a red hot poker had been jammed into it but surprisingly, the pain receded very quickly. The three brothers worked up a rhythm and her body was buffeted with three cocks working together, filling every fuckable hole in her body. Her body felt like it was connected to an electrical current. She felt tingles from her ears right to the soles of her feet. She was nothing but a fuck machine and she was loving it. Orgasm after orgasm swept over her and if her mouth wasn't so crammed of cock, she would have been screaming out her pleasure. Just as she was about to climb the peak of another orgasm, she felt Andrew and Simon tense unleash there torrent of cum into her. Her body responded with jolts of pleasure and her muscles spasmed and tensed. Danny let out a loud groan as his cock spit viciously into Jenna's mouth. He mouth was half open in a silent scream and some of his cum dripped out the sides of her mouth. Andrew and Simon slowly pulled out of her with a popping sound and Jenna let her head collapse to the floor. Her ass and pussy were leaking the juices of two men and her own juices. As if by reflex, she put her hand behind her to scoop out their mixed juices and brought it to her mouth to lick it. Just like a bitch in heat she thought to herself with a half smile. The four men lay as if in a daze around the room. Jenna felt fulfilled but still there was a yearning in her. She wanted more. She wasn't completely satiated at all. Far from it, she felt like she needed to fuck all day! "Do you mind if I spend the weekend?" She asked the dazed foursome quietly. "let me just call Stuart and let him know...." ** *** ** The weekend went by in a wild orgy. Jenna lost count of the number of times she got fucked and by whom. She only knew that on Sunday evening she had a gang bang session much like the events of the first day. Just like with Stuart, she had briefly explained the changes caused by the experiment to the Johns family. Unlike Stuart, they had no interest at all in the details of the physiology but had all the interest in her hot wanton body. That suited Jenna fine. She returned to her home late Sunday night and when she awoke on Monday, she noticed that her urges had receded somewhat. She had obviously peeked with Estrus over the weekend and she quickly made notes paying special attention to the length of days that Estrus kicked in and when it peeked. She lost all signs of Estrus after 12 days but her enhanced sense of smell stayed for 14 days. The hot flushes and secretions stopped almost immediately after 10 days as well as the redness of her vulva. It was almost beautiful to look at once it went back to its pale fleshy skin tone with bits of pink. She smiled to herself as she looked at a picture she had taken of her red fiery vulva. It looked like she had applied lipstick to it. Once she had returned back to full normalcy, she worked to isolate the enzyme further and reduced the dosage to a manageable level. She did further tests with it on herself as well as giving it to some of the friends for their own usage. She managed to remove all the side effects and adjust the Estrus level combined with an enhancer so that it took effect in 10 minutes and lasted for just a couple of hours. It was a high tech women's version of Viagra. She also developed an instant antidote to ensure that the Estrus tablet was not used as a date rape drug as well as in the event that for some reason you wanted to stop the effects. Once she was convinced that everything was in place, she announced to Jake what she had done. She showed him her research and finally explained to him her behaviour that day in the lab. Jake was extremely excited by her results and applied for FDA approval immediately. After a few months of testing, they received FDA approval and the Estrus drug was marketed. Jenna Sinclair made more money that she had ever hoped for. The icing on the cake came when she was flown to Sweden in early December. "Presenting the Lecture for The Nobel Prize in Physiology or Medicine for her discovery and isolation of the genetic enzyme that causes Estrus; and for significantly modifying this enzyme to be used safely by human females. I present to you, Dr Jenna Sinclair." Jenna rose from her seat. She looked ravishing with full make up on and her hair let down. She was also wearing dangly golden hoop earrings. The only strange this was her outfit. She was wearing a long button down coat dress – that looked something like a mix between an overcoat and a trench coat. She slowly made her way to the podium and addressed the crowd. She began her lecture, explaining how she had isolated the enzyme; the tests she had performed and the modifications she had made. She finished with these words. "It has been my said that words and diagrams that you see in presentations and lectures do not fully explain anything. There is no better teacher than experience." She said as she slowly unbuttoned her coat to reveal a sheer golden cocktail dress underneath. The dress was so sheer that you could see her naked form quite clearly underneath it. Her nipples were hard and long and they poked out at her dress. All eyes were riveted on her – especially the fiery red lips of her shaven cunt that stood out like a beacon shining through her dress. "I'm currently in a state of Estrus." Jenna continued. "This is the original dosage that I used in my experiment. I am a bitch in heat and this is the optimum day of the Estrus cycle. I need to be fucked. Fucked hard and long by everyone and anyone who wants to. Fuck me like the bitch in heat that I am." There was a wild commotion as men rushed up on to the stage as she slowly pulled the dress off her and seductively squeezed her breasts. "Oh.." She cooed into the microphone, "I brought some samples of the tablets for the women that are interested." There was another wild commotion...