Biochemical Research
by Dan
CHAPTER ONE – MY SISTER
Testing, one. Two. Testing. This is the journal of Alison M, in reference to my human pheromone project. I'm keeping this journal to better understand what's happening to me. My sister said it was okay. She hopes maybe she'll learn more about what happened. I have to be honest, and if I say something she doesn't approve of, she'll give me a spanking. Dammit, I can't believe I'm going to let my little sister spank me. I can't believe how wet it makes me. I need to start at the beginning before I sound like a total pervert.
My name is Alison. I'm 21, a biochemistry major at the local college. My sister insists I should describe how I look. I'm just glad she isn't making me stick a naked picture to the page. I'm a big girl, at 5'10h, and as you might guess I've been involved in sports for a while. I've got short, light-brown hair, B-cup breasts, and an athletic figure. I tan naked now, so my skin is bronze all over. As I write, I'm wearing nothing. Sis wants me naked when I write this, and I'm thankful. I can't think of what happened without wanting to rub my pussy. That's why I'm using a voice recorder for this. I can use both hands if I need to. My pussy is shaved smooth now...sis doesn't want me to look older than her down there. Anyway, I got into this trouble doing some side work in the lab at school with human pheromones. Yeah, I know, it's a common story...mind-controlling genius girl. That's how it would've ended up if not for my sister. I started out testing the formula on girls, mostly because I didn't want to end up pregnant if it affected me when I wore it. It did have some effect on me, the stuff usually kept me horny all night. But, once the chemicals had bonded with my own scent, it made any woman who could smell me very eager to please me. I learned in detail what that felt like, but that was later. At that point, all I knew is that the more time I spent with someone who was affected by the pheromones, the more willing they were to obey.
I guess it's time to tell you about my sister now. Her name is Erin. She's 12, and only a little over four feet tall. Puberty hasn't done much for her yet, she's slim with hardly any curves at all. She has very long, beautiful blonde hair, down to her cute little butt. I never thought she was sexy until this summer. The end of term came while I was working on a new pheromone formula. I guess I didn't dispose of the old one, because it ended up packed with my soaps and shampoo when I came home. I guess Erin was out of soap one day, and she thought the little vial of gel in my travel bag was liquid soap. Now, the dose I usually used was less than a milliliter. Erin bathed in the stuff.
Like I said, the side effects of the formula always got me hot when I used it. Felt good, being aroused all night. It made it easier to test the limits of what someone affected by my scent was willing to do. Anyway, it wasn't long before I heard Erin's voice from the shower. I remember it was a long, echoing moan that finally got my attention. I rushed into the bathroom to see what was wrong, but opening the door was like running into a wall of pure sex. My nipples got so stiff they throbbed, and my cunt was so hot and wet it made me weak in the knees. I could barely walk without the friction nearly getting me off. I'm not sure if I was still worried about my sister by the time I pulled open the shower curtain, or if I just wanted to fuck. She was lying on the bottom of the tub, her skin shiny and silky smooth. The sight of her, the scent, it filled my head. Her wet hair was falling over her body...I wanted to pick up every strand and kiss where it rested. Her little breasts and smooth little cunny suddenly seemed so perfect. I was mesmerized by her fingers as they rubbed up and down her slit. Memory fades there...my shirt was soaking wet from the shower by the time I spoke. I asked her if she wanted help. She was so horny, and wanted to cum so bad, but it wasn't happening fast enough.
She just moaned and nodded while she kept rubbing. My little sister needed her pussy licked and I wanted to be the one to do it. I lifted her from the bathtub, but even then I already wanted to please her so much. I couldn't just lick her on the floor. I took off my clothes, laying them on the bathroom floor, giving my sister a soft place to rest while I buried my head between her thighs. I think that was when I recognized the scent of my pheromone gel. It was different on her than on me. The part of my mind connected to my dripping pussy told me it smelled even better on her. And there, on the floor of the bathroom, on top of my own discarded clothes, I licked my little sister's pussy until the scent finally faded from her awareness. Every orgasm, every moan of approval or suggestion I could obey made my own pussy twitch. It was something more than sex, though, it always has been. I fell in love with her there, while her smooth, wet slit humped against my lips. I never realized how perfect little girls like her were. It was by accident, but I feel like Mistress Erin was destined to do it. She had always deserved to be obeyed and worshiped like this, I just hadn't known it. She didn't realize it yet, either. Remembering it makes me want to cum, though...and Mistress Erin says I may. I'll write more after.
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Thank You, Mistress Erin, for allowing Your slave to cum. Orgasms make me more obedient. After our beautiful first time, my Mistress was no longer under the control of the pheromone gel. She was really confused and scared, at first. I explained what happened, and held her close. Just feeling her body against me got me so hot all over again. I explained about the pheromones. I promised to do anything she wanted; I swore that everything I did from now on was just to make her happy. It was completely true. I already felt addicted to her presence, her body, her taste. She calmed down...looked up at me, asking if it was really true, or if I was just being mean and lying to her. She looked so cute, I had to kiss her. That's when I found out that the gel had raised her sex drive permanently. My dear Mistress Erin returned the kiss eagerly, and we made love in her bed.
Mom came home, after that. Mistress Erin had to tell me to get dressed...I was such a silly slut; I'd forgotten I'd need clothes. The taste of Mistress's pussy seems to get me drunk. I can't think straight for a while after I lick her. Mom noticed a little. She said I was being very nice to my sister, and asked if something was wrong. I was still so dizzy I almost told her. Mistress stopped me, though. That was good...if Mom found out, I wouldn't be able to serve Erin anymore.
That week was an experience. As sisters, I'd been in charge. I was almost ten years older, and thought I knew so much better. As Mistress and slave, things were very different. I was older, but Erin was so much sexier. Even though there were so many things she didn't know, her commands were always right. I argued a little...but she figured out about my addiction to her pussy. When I was bad, she spanked me while she made me suck her juice off her fingers. When I was good, she let me cum and lick her. I know it's just basic pleasure conditioning, but when I think of Mistress doing it, it seems so wonderful.
I have been a good girl for three weeks now. When I spend too long away from Mistress, I start to feel strange. I feel lost. I feel like I need to go back to her, and at the same time that I need to stay away from her just a little bit longer. I worry that maybe I'm just addicted to her. That Mistress doesn't always know best. But that's silly. I've been a very good girl lately. Mistress hasn't had to punish me all week. I crave her pussy, though...I feel like I want to misbehave just so she spanks me and makes me taste her again. But no, I have to be a good girl. Mistress is worried about my obedience too. She wants me to finish my research, and make a new formula for Her. Haven't tasted her recently, so that I can think clearly. The research helps, and I have been sneaking licks at the samples I collect from her pussy. That's why I was so horny the first time I was writing this.
I've learned that my special formula really does cause addiction. The chemicals bond to the sweat and scent glands of whoever they're applied to, but they don't cause any permanent change. They do transform the pheromones of the person they're applied to, temporarily. Instead of simple scent triggers, they become a drug. It stimulates the parts of the brain responsible for love, sex, and religious awe. I already knew this, of course. What I didn't know is that the chemicals are not what the subject who smells the altered pheromones is addicted to. The drug is temporary, but powerful. It can alter the desires and needs of the brain. What I mean is, whatever stimulates a subject when they're under the influence of the altered pheromones becomes their desire, and can create new fetishes and orientations. That is the most disturbing thing I've learned. This...with my sister...it's given me an irresistible fetish for incest, and taboo sex partners. Especially the idea of partners near my sister's age.
This summer, as always, I've been making a little extra money by babysitting around the neighborhood. My first time since this change in me was very recent. I literally could not concentrate. I just stared at the bodies of my young charges. I was very agreeable, unnaturally so. I'm just glad the boys didn't realize it.
Oddly, there is no mechanism by which my special gel can cause permanent enslavement. Obedience is just how the brain interprets the feelings that the altered pheromones cause. The addiction has changed my brain chemistry so that my sister's natural pheromones affect me almost like they did when they were changed. I'm finding that this effect weakens over time. I'm less and less satisfied at the taste of her wonderful pussy. It's possible that within a few weeks, she won't control me anymore. Maybe I should wait to produce the new formula until my thinking is unaffected by the old formula. That way I can be sure I'm doing the proper thing.
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Mistress read alison's diary. alison bad girl. Mistress say alison trying to escape. alison not remember escape anymore. Escape bad, no get taste Mistress's sweet pussy. alison like pussy. alison lick pussy for hours. alison drink SOOO much girlcum. Make alison dizzy. alison good girl. alison finish lab work. alison feel so naughty in no clothes and short lab coat. i am horny science slut for Mistress Erin. i no remember much, but new formula almost done. alison have instructions how to finish formula. That's good...i not remember what formula is for, or how to make it. Mistress yummy pussy made me too dizzy. It's okay. Dizzy alison good girl now. Not think of being bad girl.
Formula finished quick. Pussy taste finally clearing from head. Not gel now, powder. Can make pill or drink formula, but instructions say fastest if inhaled. Mistress wants it fast. i prepare tiny little vial of powder for Mistress. alison is a good girl. Soon alison will be a good girl forever. i am taking the powder to Mistress. She snorts it and makes a face. So cute! Now she looks dizzy. Eyes are all glassy, but her nipples are poking up really hard. Mistress started touching them when i said that...she looks so hot. i can see her pussy getting slick, like mine. oooohhhh....mistress kissing alison...licking... i am a good girl...please Mistress. Lick Mistress...oh, her tongue is so good. She isn't giving any commands, just licking me and rubbing herself. Oh fuck, she's good. Won't stop licking...Mistress...please keep licking... Erin...please... Oh... Erin...be a good girl and lick my pussy until you can't move your tongue anymore.