This is the second part in a series of adventures relating to the understated capabilities of genetic research in assisting is the realization of our ever expanding obsessions.
"You just stop thinking those thoughts little brother, I'm hungry and need some fuel so I can stay up late tonight fucking you until your dry." She quipped.
"How did you know what I was thinking?" I asked amazed.
"You're a man aren't you? I can only imagine what you were thinking. Why don't you go and fix us some cocktails darling, I wouldn't mind having a margarita before dinner."
I went into the next room and found everything I needed in the fully stocked bar, even crushed ice. I made us each one and as I returned she came out to the dining room table carrying supper and we both sat down to eat. The conversation was one sided however. For some reason Mary was compelled to explain to me every detail of her less than exceptional love life with her ex-husband. I listened patiently realizing that she had to vent and I was the nearest sympathetic ear.
"He even tried to get me to fuck his buddies while he watched. That would not have been a bad idea if his friends were anything more than sweaty Neanderthals that had somehow seeped through the evolutionary gene pool. He would accuse me of affairs I wasn't having, even though I had wanted to. I just can't imagine whatever possessed me to marry him in the first place. I guess I wasn't as grown up as I thought I was." She explained.
"Don't worry sis, put that part of your life behind you. It's over now and there's no reason to spoil our time together thinking about him." Came my effort at emotional support.
"You're right Larry," she replied jumping up "lets tidy up and then hit the hot tub, I turned the heater on when I got up, it should be nice and comfortable by now."
After putting the dirty dishes in the dishwasher I went in and made a jug of margaritas for us and took them and some glasses to the deck where my luscious sister was relaxing in the oversized hot tub. She was laying on her back floating with her head resting on a neck rest at the edge of the tub. Her breasts were pointing up at the evening sky, her nipples standing out from the coolness of the autumn air. The sun was just about to disappear on the western horizon. The scene was like something out of a movie. I stood there for a few moments savoring the exquisite view, both of the sunset and my gorgeous sister.
"Are you going to stand there all night or are you going to climb in here sweet brother?" Mary asked.
"Oh, sorry sis," I replied as I snapped out of my reverie, "I was just admiring the sights." I smiled at her as I stared directly at the exposed tits sitting on the water in front of her.
"I get it," she giggled, "all you can think about is my new tits. I was wondering if you would be as eager to join me if I only had my old 36C's to show off." She lowered her body into the water and was completely submerged now except for her beautiful face.
"That's not it at all Mary," I responded, "you know I've always loved you and I wanted to fuck you long before you acquired your new breasts. You have to admit though, they are very impressive and I know you love them as much as I do. I can't believe that you went to all this trouble, and the risk of trying out a new genetic procedure, unless you wanted them as much as I love them. Tell me I'm wrong."
I walked over to the tub and poured us each a drink and set them down. I removed my robe and my stiffening cock became exposed, dangling in front of me.
"See sis, you're getting me hard as it is and all I could see earlier was your two hard nipples sitting on top of that creamy flesh of yours." I pointed out as I lowered myself into the warm water and slid over beside her sitting with our sides touching under the water.
"Oh I know Larry, I know you would love me no matter what. And your right, I decided to do this because I wanted to know what it was like to have great tits, not that my old ones were bad, just a bit too ordinary, if you know what I mean. Besides, once I saw the effect that Jane's new tits had on her, both physically and emotionally, I just had to try some on for size. And trust me, if you think these two beauties are big, wait until she shows up tomorrow. I don't know if they are that much bigger in size, but her frame is so much smaller than mine she looks like a little doll with disproportional sized breasts. Very cute, and very cuddly. The other aspect is that my tits are a lot more sensitive now than they were before the enhancement. In fact, I started experiencing heightened sexual response from them long before I saw any noticeable change in size. My nipples grew darker, and the overall area of my aureole increased almost immediately. My nipples were ultra-sensitive in the beginning also, like they had a direct link to orgasm central in my brain. The first time I noticed it I woke up early one morning dreaming of two lovers suckling my breasts. In the dream they had grown to gigantic proportions, much larger than they are now. I was producing milk for my lovers to feast on as they sucked. When I woke, my cunt was dripping cum all over the sheets and my nipples were rubbing against the silky material of my nightie and the weight of the bed covers. They were so sensitive it almost hurt, so I brought my hands up to cover them, to protect them from the stimulation. As soon as my hands touched my nipples, which were extended at least twice as far as they had ever been before, I exploded in orgasm. I was so shocked by the waves of delight passing from my nipples to the rest of my body I fainted both from excitement and fear. When I came to I was still laying there with my palms on my breasts and a soaking mattress. I was mesmerized by the impact of the orgasm and the limited stimulation it took to achieve it. I proceeded to enjoy several more with no more stimulation than touching and pulling on my nipples and breasts. After several like that I started wondering how I would ever get anything done if I just laid in bed all day rubbing my tits. I got up and jumped in the shower and was again overwhelmed by the stream of hot water hitting my tits, causing another series of orgasms. This continued on as I rubbed myself dry with a towel, covered them with my bra and even as I put a blouse on my nipples could still detect and react to the subtle change in pressure caused by the material against my undergarments. I called Jane up, worried that something had gone wrong. She said she would have told me what to expect but wanted to know how long the effect would take to happen. The same thing had happened to her and she was afraid that if I was expecting it I might have caused it to happen prematurely, not spontaneously. Jane is trying to collect as much data as possible about her discovery, she's very concerned about reactions and unforeseen effects"
I sat there rubbing up against my sister and feeling the smooth skin of her breasts under the water. "All I can say Mary is I love the affects so far, any other weird things happen to your body since then?" I asked.
"Besides the ultra sensitive nipples, which toned down within days, just the expanded size. We were not positive as to how long they would grow, or how big they would get, so we monitored their status every four hours. You know measuring and the like. Anyway, I went through multiple bra sizes until the growth stopped about three weeks ago. They've been stable and I've had a ball just simply enjoying my new shape. I had to buy a new wardrobe, especially support material, if you get my drift. I've had a few neat experiences with that. Once I went into the same lingerie store about a week after buying a 38E bra. I now needed one at least two cup sizes larger and the sales person couldn't believe my rate of growth. I told her it was because of pregnancy but I don't know if she bought it or not. As time went on it became more difficult to find new sizes and only a limited amount of shops carry them. Anyway, Jane has found a great supplier that is as much involved as we are. The store owner has become Jane's third active research study and it feels good to know that I'm not the only guinea pig."
I was feeling Mary up pretty good now and she was starting to respond to my efforts, as I was responding to her story about her growth.
"I know I'm turned on just by being here with you Mary, but your story about the experiment itself is a turn on for me too. I want you to tell me the complete tale, inch by beautiful inch." I said as I rubbed my hands over her breasts.
"We have lots of time for that, and you can listen to Jane's experience also if it turns you on. Right now I want to get out of here and go to the bedroom, lay down on that bed of mine and have you fuck my tits with that wonderful cock of yours." She said reaching over and kissing me fully on the lips and driving her tongue down my throat.
We made out in the hot tub for a while longer getting hotter and hotter. Finally she jumped out and ran into the house with me quickly following. As I entered the bedroom she was drying herself off with a thick towel. My hard cock was standing straight out in front of me and she came over and wrapped it in the towel rubbing it up and down, pumping it until I almost came. She finished drying me off and then threw herself on the bed, lying on her back holding her gigantic tits together.
"Come on Larry, stick that cock of yours right here. I want to feel you between my tits more than anything, I'm going to come just thinking about it."
How could I resist? I jumped onto the bed and straddled my older sister and poked my cock into the deep valley between her globes of flesh. She squeezed her tits together completely engulfing my prick as I slowly started to pump back and forth. I reached down and grabbed her nipples between my thumb and forefingers, feeling them extend from the stimulation. She squealed with excitement and told me to pump harder and pull further which I proceeded to do. The head of my prick was poking through the top of her tits and she licked it on every forward stroke. I couldn't believe it when she orgasmed from just stimulating her breasts in this manner. She stiffened her whole body as we continued with the tit fuck. I pushed my cock forward and held it there and she grabbed the head and sucked the pre-come out, licking and kissing it until I pulled back for another full stroke.
"Fuck my tits Larry, I want you to come all over me," she screamed.
I started pumping in earnest now and she would occasionally lick the head of my cock as I moved forward. I still had a firm grip on her nipples and she was obviously heading for another orgasm. I was totally focused on fucking her tits and the sensations and atmosphere created by her sexual need and excitement. I could feel the come building in my balls and I pumped harder. I started coming on a forward stroke and the first shot flew from the head of my cock and landed on her cheek. It seemed like a damn had broke loose as shot after shot of jism pumped out of my cock coating her luscious tits with my fluid. She was screaming now in her orgasm and I continued to pump in the now lubricated valley of her tits until she calmed down from her orgasm. I pulled out and collapsed on the bed beside her, my come covered, half hard cock resting against the inside of my thigh. She was rubbing her my come all over her tits now and humming in the aftermath of her orgasm.
"I've been dreaming of a good tit fuck ever since that first morning I woke up with the ultra sensitive nipples. Twice in one day was more than I had imagined." She said.
Mary rolled over on her side facing me and pressed her come covered tits against my arm and side. "We get to spend the next few days doing just that you know Larry, fulfilling each others sexual fantasies." She mewed.
We cuddled for a little while until Mary sat up and started licking my cock clean of the come that was covering it. After she had re-stimulated my cock somewhat she crawled up my body and shoved her tits into my face. The odor from my half-dry come completely surrounded my face and I couldn't help but stick out my tongue to taste the sex juice, a first for me. She started to moan as soon as I started licking and her excitement totally got me into it, licking and mouthing her tits until she had yet another orgasm just from the breast stimulation. I was again amazed by her capacity to orgasm just from breast manipulations, but I wasn't going to complain. We got up and hit the shower again, got some more drinks and sat around the living room, talking about our re-found affection and how great it was to be together again. We fucked again later, and this time I was actually able to get my cock into her cunt. I had never had the stamina or opportunity to come so many times in one day. We fell asleep in each other arms and my dreams consisted of me being in a room full of gigantic breasts rubbing themselves against me until I came.
I woke the next morning to find myself alone in bed relaxing in the fulfillment of the previous evenings activities. After getting up and showering I put on some slacks and a shirt and went out to the kitchen to find Mary preparing a mountainous breakfast for the two of us. She was wearing her robe and the soft white silk fabric clung enticingly to her beautiful body. After a very intimate good morning kiss we chowed down, nourishing our bodies.
"What are the plans for today," I asked her.
"Jane's coming over later this afternoon, she says she has a big surprise for us," she replied. "Until then I thought that you and I could spend some time relaxing, and I could model some of my new outfits for you and tell you some more about how it felt when my breasts started expanding."
She smiled slyly as she said this, winking at me.
"Whatever you say sis," I replied, "that sounds great."
The thought of hearing more about her transformation was getting me hard real fast. I had never even thought about exceptional breast growth as a turn on before, but seeing the effects it was having on Mary, I wanted to know more. She went to shower and change and I sat in the living room and watched the news on the television. I couldn't concentrate though and kept thinking of Mary's breasts growing the way they had. After an hour or so, she called me into her bedroom and said she wanted to show me some of her new outfits. I sat on the love seat at the foot of her bed beside her as she started to explain.
"You know Larry, I was never one to show off my body a whole lot. I guess I didn't feel comfortable wearing sleazy clothes, and didn't have the personality for it anyway. Since the physical change however, my sexual appetites have increased and I get horny in loads of different ways now. I told you about being in a constant state of orgasm while my nipples adjusted to my new genes. One of the other things that changed was the way I felt about my clothes and how they made me look. It started shortly after my boobs began to expand. This was about a week after my episode with the orgasmic nipples and I had just about given up on my tits getting larger. Jane had said she didn't have enough data to accurately predict how long it would take, if at all, and the differences in the size of our bodies, and our genetic structure, would invariably cause different results. Anyway, I had just about given up when I got up one morning and as I was putting my bra on I noticed it was feeling tighter than it should. It took me a couple of seconds to realize that I had finally started to experience some of the growth I'd been waiting for. I was barely able to get the hooks on the bra done up and found that the cups would not be able to handle my new size at all. The material around the back edge of the cups didn't even come close to touching my torso, although the exposed flesh near my flesh certainly looked okay in the mirror. I rummaged through my drawers and found some of my larger fitting bras and tried one on. Even though it was tight I managed to get it snapped up easier than the first. This bra was a little lower cut and my boobs spilled out the top exposing lots of cleavage. I looked at myself in the mirror and I just about creamed myself. I couldn't believe that the sight of my boobs spilling out the top and sides of my bra could look so sexy. I couldn't stop touching my lace-encased breasts and masturbated to several orgasms as I tried on the different undergarments.
"I was finally able to get dressed and went downtown and got measured at one of the lingerie shops. I had increased my cup size by two, going from a large C cup to an E cup, almost overnight. When I tried some of the selections on the saleslady commented on how badly fitting my previous bra was, and how it left red marks all over my breasts. She also mentioned that it wasn't of very good quality and explained to me all the right things to look for in a bra. For instance, the manufacturers have different sizing standards so C size by one would end up being a D for another maker. Also, Western European made bras would fit entirely different than ones from North America, and be really careful of any made elsewhere. She all advised that you should never buy a bra off the shelf without trying it on first. Some women had changes in the size of their breasts depending on the time of the month, so I should also be aware of that also. Up until then, I had typically just picked up bras based on my limited experience and the last best measurement I had. That's why some of the ones I had fit better than others. I had to admit they had been very uncomfortable at times. I was then professionally fitted for the first time in my life. The lady that was helping me was very aboveboard and although she could't avoid touching my breasts during the fitting, she didn't make any overt overtures. Too bad though, I would have been into someone giving my new tits a good rub, and god knows I was already horny again. I bought myself several new bras after trying on several that she suggested plus some I picked out myself. I had never spent a lot of time buying undergarments before, but I ended up with a lot of very sexy and lacey items that I would never of dreamed buying before. I should have only bought one, although at that time I didn't know how fast my rate of growth would be. After I returned home with my purchases I spent the rest of the day trying them on and playing with myself.
"As I said before, my previous bras had been fairly standard in looks, but the new ones I had purchased were much more feminine and sexy. The saleslady that had helped me kept saying how lucky I was to have such fine breasts and that I should pamper them with the finest and loveliest materials. I couldn't stop changing them and modeling them for myself and brought myself off many times over the next couple of days. Here let me show you."
She stood up and walked over to her large walk-in closet and disappeared for a few minutes. Her narrative had managed to stimulate me somewhat and I could feel the heat of my semi-hard cock resting against the inside of my thigh. A few minutes later she emerged from her change area and I thought I was going to cream my pants. She was dressed in a stark white corset that hugged her tits and pushed to the point of nearly falling out. The lacy material encircled her perfect breasts, running down her torso, clamping her already thin waist like a vise. It flared out at her hips and the attached garters held up a pair of white stockings, ending in a pair of white patent heels that had impossibly high heels.
She spun around a couple of times modeling for me and turned towards the full length mirror and ran her hands over the mounds of flesh spilling out of the top of the sexy garment.
"Mmm, I just love the way this outfit makes me feel," she whispered, "I could wear this forever and it would still turn me on."
She came over and stood right in front of me with her feet spread apart, For the first time I noticed she was not wearing any panties and the excited nub of her clitoris was sticking out from behind her soft downy pubic hair. On an impulse I brought my head forward with the intention of running my tongue along her swollen cunt. She quickly stepped back and admonished me for not being patient. She backed away a step or two to be out of my reach.
"If you want to see more of these outfits dear you have to keep away. Remember this is my modeling show and I want to make sure you get a chance to judge a variety of my new outfits. Like I said earlier, my view of myself sexually changed with the growth of my breasts. I still don't know if it was a side effect of the treatments, gene changes and all that, or just me finally realizing that there was more to sex than having my husband have his way with me."
She turned around a few more times and disappeared again into the closet. My pecker was growing from the visual stimulation and I wanted badly to pull it out and start jerking off right then and there. I did remember her insistence that it was her show and I decided to enjoy it entirely from the visual aspect alone. When she returned I almost lost my resolve and thought about jumping up and throwing her on the bed and fucking her tits right there and then. My willpower held though and with complete restraint I watched as she strolled towards me in a baby blue bra, panties, garter and stockings with matching shoes. It must have been the complete innocent nature that the color gave her milky white skin but I was overtaken with a lust I had never experienced before.
"Oh, I can tell you like this one," she cooed. "Must be the color, do you remember the first time I modeled for you when we were kids? I had on an outfit that was similar in color. That's why I bought this one when I saw it. I just knew you'd go wild over it."
She stood in front of me swaying her hips back and forth and pulling at her nipples through the sheer material of the bra cup. She brought one hand down and rubbed her sex mound through the panties and immediately orgasmed with just a few rubs. I couldn't believe how fast she came. She shivered with lust and relaxed as she pulled her hand away from her cunt exposing a dark patch of material wettened by her manipulations.
"That felt good, and so fast too. If I sit down beside you do you promise to be good?" she asked.
"I can't guarantee it sis, I think my cock is about to rip my pants open."
"Well we'll just keep our distance then, I want the excitement to last, I love seeing you get all worked up. It reminds me of our younger years when I'd make you go weeks or months without any contact. Sometimes I thought you were going to drool yourself dry. Anyway, as I was saying earlier, as my breasts started to grow I turned more and more inward for my sexual stimulation. I was like a walking orgasm machine and frankly I don't know how I made it through the next six weeks. It seemed that everyday found me with bigger tits and a stronger libido than the previous day. It was all I could do to feed myself and go shopping for new bras. The first growth in my breasts had been larger than the next ones though taking me from a C to an E. After that it took another ten days to get to an F, two more weeks to get up to a G and I finally stopped the growth with my current size, H.
"It wasn't as intense as the ultra sensitive nipple period, but my imagination was playing a bigger role and I dreamed endless hours of sex involving tit-play, lactation, long hard nipples and the like. It was becoming just as easy for me to come by rubbing my breasts as when I stroked my clit. Jane kept telling me she went through a similar phase but did say that mine seemed more intense and was lasting longer. The other side effect of the breast growth was I hadn't had a period since the gene treatment. Jane experienced that also and suggested it was associated with the overly active hormones in my body, not unlike nursing mothers that stop menstruation when they're breast feeding. I was lucky I was well off enough not to worry about work, besides which any financial market transactions I wanted to do were just an Internet connection away anyway. The only people I talked to for three months was Jane and my lawyer, and of course my lingerie sales people. As the days passed however I could see that I was slowing in my growth cycle and it has been three weeks now since I expanded. My sexual drive has mellowed also, as Jane said it would and although I can pretty well come anytime I want to, and trust me I want to lots, I have complete control over it now and I like it better that way. When you called two weeks ago and told me of your trip my imagination went wild again remembering our previous encounters. I came to realize after all these years that you were the one that was missing from my life and I just couldn't wait to show off my new self to you. I'll go change now."
She left the room again and I ogled her ass as she wiggled her way back to the closet. Two seconds later she returned with a small silky g-string, with a pouch made for a man. She threw it at me and suggested I put it on, it might help me feel more comfortable. I stripped my clothes of in no time and stood there looking at my nine inch boner swaying in front of me in the mirror. I stroked my cock a few times and realized for the first time that I had never looked at myself aroused like this before. The only times I had seen another guy with a hard-on was in the porn movies I had rented. I realized that my cock was as big, if not bigger than any of those guys, and I looked pretty good, for a guy that is.
"Are you ready Larry, I'm not coming out until you have your sexy underwear on."
I snapped out of my thoughts and pulled the g-string up my legs. I had to really stretch it over my cock, but the cup material was pretty stretchy and encased my prick real good. I looked at my reflection again and rubbed my cock through the thin material, getting off on the tight feeling and the look of my penis surrounded by the thin silky skin.
"Okay sis, whenever you're ready," I replied as I sat down in the love seat.
If you like leather you would have gone wild over the next outfit. Black smooth patent leather boots, thigh high, matching hot pants that clung to her pussy and ass like a glove. The matching short vest covered a white leather bra top that was so tight against her tits I thought it would burst the buttons holding the front together. She let the vest slide down her arms as she turned in front of me. The cheeks of her ass jiggled as the thin strip of leather worked its way into her crack. She turned back towards me and gazed directly at my cock straining against the thin material of the g-string I had put on.
"I see that the fit is a little tight," she commented, "I wasn't expecting my little brother to be such a man to fill something like that up. Kind of like this top, it just feels a little too tight."
She reached up and undid a couple of the bottoms holding the two cups together and her tit flesh pushed up out of the opening exposing a good six inches of luscious cleavage. She walked towards me and bent over at the waist as she reached down and felt my hard-on through the thin material. I was gazing down the front of her top when she started to sway her shoulders back and forth causing her tits to push further forward, practically falling out of the top.
"Oh, oh," she exclaimed as she stood back up, "don't want any premature exposure here. I'm going to go and change just one more time dear, you wait here like a good little boy and maybe I'll give you a very special reward."
Again she turned and left the room finishing another sexy modeling show. I didn't know how much more I could take, every outfit was a complete turn on in itself, I couldn't imagine anything sexier than I had already seen.
Well there's a lot to be said about the difference between imagination and reality. When Mary reappeared she was completely covered in white again, although this time it was seemed softer than the first corset outfit. She wore the same high spiked white shoes, her legs were encased in white stockings with designs inlaid into the fabric, long sensual snakes pointing towards her crotch. These stockings held themselves in place with wide lacy bands around the top. Her pussy was covered with thin lacy panties cut very high. The thin band barely covered her slit, with the puffy mound of her pussy was fully exposed. As I looked further up her midriff was surrounded by a bustier that was topped off with two demi-bra cups that held the magnificent chest up like a balcony. Her nipples were fully exposed and stood out long and hard. Draped over her shoulders was a long flowing white opaque cover that dropped down to her ankles, flowing daintily behind her. Her arms were covered with white lace gloves that ended just above her elbows. Saying the outfit was elegant would be selling it short. She pranced around the room in front of me posing like a runway model. I couldn't keep my hands off my cock, rubbing it through the thin material of my pouch. As I sat there rubbing myself Mary continued her enticing dance. She moved towards me and straddled my legs sitting in front of me, moving her body back and forth.
"O Larry, I'm so hot right now I can feel a orgasm coming on just from the excitement. Suck my nipples Larry, just like you sucked them all those years ago."
I leaned forward and clamped my mouth over one of her nipples sucking it deep, feeling its hardness with my flickering tongue. She sighed with relief, as if she had been living her whole life for this one moment. She was grinding her pelvis into my cock, rubbing it's length with her silk covered pussy. She moaned as our rhythm increased and I sucked her nipple even further into my mouth. I felt her body tense with another orgasm, after which she relaxed her body into mine, smothering my face with her ample breast.
"Keep sucking Larry, I can feel it again, I'm going to come again." She whispered in my ear.
She shivered this time as she came, and ran her hand down between our bodies, feeling my hard meat with her hand. I released the first tit and she immediately shoved the other one towards my eagerly awaiting mouth. Getting the hint, I pulled as much as I could in, my slobbering sucking sounds the only noise accompanying her heavy breathing. She shivered again as she continued rubbing my prick. I reluctantly let go of her nipple with the intention of rolling her off me and getting up to remove the pouch that was restraining my cock. She wouldn't budge though and pushed down on my lap even harder, I gave up with no fight at all, why would I want it to stop any way. She pulled her upper body away from me and smiled lovingly as she brought her mouth onto mine and slid her tongue in, where mine was eagerly awaiting. As she pulled away she slid down onto the floor, kneeling between my spread legs, rubbing her cheek up and down my shaft as she looked up at me with lust filled eyes. She fondled me through the fabric and started licking and sucking the pre-come wet patch that had formed on the pouch. She pulled the band away from my waist and reached in with one of her hands and pulled it up and out, freeing it from the soft enclosure. She engulfed the head with her mouth and sucked it wildly until I thought I was going to come. She sensed my physical condition and stopped, squeezing the base to inhibit the flow of come.
"Not too soon now," she cooed, "I want this inside of me, I want you to come inside of me."
She stood up in front now and let the long see through material drop to the floor. She reached down and pulled her panties down her lovely hips and quickly had them off also. As she stood back up I could she her inflamed pussy lips, covered with the juices of her multiple orgasms. I stood up now and we embraced, grinding out mouths and bodies against one and other. She broke free and ran over to the bed and flopped back, spreading her legs and rubbing her hand up and down her swollen clitoris.
"Hurry Larry, I want you cock in me right now" she screamed.
Not being one to argue, I stepped forward and removed my g-string, discarding as I leaned over her, perching the bulbous head of my cock against her opening, pressing it lightly on her clit. She brought her legs up quickly and wrapped them around my hips and pulled me into her fast and hard. It was all I could do to keep control and not empty my balls immediately. I started long full stokes in and out of her cunt, burying the full length of my cock each time. She was thrusting her hips up to meet each of my downward strokes, slamming hard against my pelvic bone. I knew I wouldn't last long with this type of animal behavior. She wrapped her legs tightly around my hips and started to come, real hard. It was on the next downward thrust that I sprayed my first stream of juice high into her cunt. I continued pumping until I had emptied myself and slowly withdrew and rolled over to her side. She lay there with a contented look on her face staring into my eyes.
"That was the most intense orgasm I've ever had,", she said, "I could fuck like that all day if that was always the outcome. Unfortunately we have a guest arriving in a couple of hours and I have to start getting things ready. I need you to go down to the store for me and pick up a few items so lets get moving so we can relax later on."
That being said she jumped off the bed and disappeared into her closet, emerging minutes later in a T-shirt and jeans telling me to get my ass in gear. I was mesmerized by her energy and complied immediately.
We were pretty well ready by six o'clock when we expected Jane to arrive. I had done everything Mary had asked and we had a lot of fun getting ready for the evenings activities. Dinner was a simple yet elegant affair with many light dishes that would be served with the wine I had chosen earlier at the store. We had both showered, separately to keep on schedule, and were having an aperitif when the bell rang and Mary went to answer the door. Mary had warned me that Jane had changed considerably in the physical department because of the gene therapy she was experimenting with. She did say that she hadn't lost her sense of adventure though and still had the same high spirited personality. I waited patiently in the sitting room as Mary opened the door. I heard an excited gasp and Mary exclaim, "What have you been up to dear, you look totally different again. Come on in and show Larry"
I heard the click of their heels on the hardwood floor and as they turned into the room I stood up. Although Mary had warned me I was not at all prepared for the sight that entered the room. The last time I had seen Jane was at some family function ten years ago when she was in college studying biology. At that time she was an attractive, although somewhat skinny young lady, known for her sense of humor and academic success. Without seeing her before picture it is hard to imagine the magnitude of the changes. Let's say she used to have a Jody Faster type of look, except skinnier. What meet my eye was anything but plain. She would have been about five foot four without heels, so she must have had four or five inch heels on judging by her overall height. She had dyed her hair platinum blonde, and it hung in long flowing waves past her shoulders. Her complexion was soft and very white. She had makeup on but it was very subtle, except for the bright red lipstick. She was wearing a cape that went down to the floor, which was covering the body that Mary had tried to prepare me for. I could she the massive shelf that came out in front of her chest, but almost fell over when she undid the cape's clasp and flung it off in one smooth motion, handing it to Mary.
She had largest tits I had ever dreamed of, let alone seen, in my entire life. When I had first seen Mary's new wonders I was impressed, but had seen some exotic dancers and magazine spreads of larger ladies enhanced by implants. Of course Mary's were very natural looking and looked as real as they were. Jane's tits were just plain awesome, and judging by the look on Mary's face, even a surprise to her. They literally covered her entire chest and most of her stomach. I could just make out the corners of her shoulders over the top of her breasts. She was wearing a black blouse, just sheer enough to see that she wasn't even wearing a bra, and in fact didn't need one. What was really amazing was these humungous tits on her tiny frame, definitely enhancing the size of her chest. She had on a bright smile along with the black miniskirt and stockings.
She spun around, sayiing "What do you think of my new look cousin, do you like my big beautiful tits?"
I stood there with my mouth hanging open not knowing what to say. Mary spoke up first however.
"What have you done Jane? The last time I saw you, just four weeks ago, you were no bigger than me and had told me you had finished experimenting, that the risk was getting too high. What gives?"
Jane ignored Mary for a minute and came over to me and pressed her chest hard against mine. She reached up and pulled my head towards her to kiss me but her boobs were in the way. She turned sideways a bit and gave me a kiss full on the lips, letting her tongue quickly brush mine before pulling away and telling me how good it was to see me after all these years.
Mary joined us after hanging up Jane's cloak and insisted that Jane explain why she thought it was necessary to turn herself into a freak.
"I thought you'd like them Mary, that's why I did it. I've even done some other things that you'll like too. Don't worry though, I have made great progress this last month and not only can I make tits grow, I can control the speed and reverse the effects as well. I made these just to see how far I could go. They'll be back to my normal 44H's by Monday evening if my calculations are correct. I could even reverse them down to my original size if needed, although I wouldn't want to. Don't be mad sweetie, I just wanted to have some fun."
That said she went over and gave Mary a sideways hug and kissed her also, full on the lips with obvious tongue play.
"Let's eat now," Jane suggested, "I'm starved and don't want to wait before I show you more of my newest developments."
She skipped off into the dining room with Mary and myself following. Mary explained that she was always this perky, even before the enhancements, and that it was one of the things she loved about our cousin. Jane explained in simple laymen's terms what the essence of her research was about and how her latest findings allowed her to completely control the growth or reduction. She then told us how she had been teasing some of the men in her apartment building but had not yet shared her discoveries with anybody else except us, and a few trusted colleagues that were giving her suggestions. She figured she wanted to enjoy it herself and because the whole formula was based on the fact that her and Mary had similar genetic structures, she doubted it would work on anybody else at this time. Her goal was to continue isolating the structures and report her findings when they could actually be used. Until then, it was just her and Mary that got to enjoy the benefits of her research. I reminded her that I was already enjoying the benefits, which made us all laugh.
I knew that Mary had explained our relationship the Jane before I even came out. The only thing Jane said about it was it was too bad I hadn't seduced her way back then, I probably would have gotten a good fuck out of the deal. We all laughed again and retired to the living room with our second bottle of wine. We were all enjoying ourselves and by the way Jane had kissed Mary earlier, I suspected that they had had intimacies with each other before now. Jane held onto my arm and we sat on the couch together, her oversized breasts pressed firmly against my side.
"Well Jane," said Mary, "we can see your not wearing a bra tonight, and I want to see more. Why don't you show us exactly what you have done to yourself?"
"Do you really want to see my tits Mary?" Jane replied, "how about you Larry, do you want to see my tits?"
"Stop teasing Jane, you know I can't wait, and I know my brother wants to see those beauties exposed too. Why don't you do a little striptease for us." Mary said as she picked up a remote control from the table and put on some sensuous music.
With no reluctance at all Jane stood up and started swaying to the beat of the music. She had never been shy as a child and I see that hadn't changed much over the years. She pranced around to the music, sliding her hands up and down her body. She would bend her knees and squat slightly and rub her hands up her legs as she rose to a standing position, her hands continuing up to cup the sides of her tits before starting their journey back down again. She did this several times before stopping in front of my sister and me anxiously sitting on the couch together, waiting to see her bountiful assets. She continued to move her hips in time to the music as she slowly undid the buttons on her blouse. Painfully slow, it seemed to take forever, and Jane was getting off on our attention and the fact that she was at center stage completely controlling us. As she loosened the last button she let her arms fall to her sides, her blouse separated slightly, exposing her entire cleavage. She moved her chest back and forth and with each change in direction more and more of the blouse fell away from her mountainous globes exposing an endless amount of tit-flesh. She reached up and pulled the blouse back and in a split second completely uncovered what could only be described as the eighth wonder of the world.
To compare them to volleyballs or basketballs would be a disservice to her and the reader of this story. Their volume was unmistakably larger than those two objects, but more importantly, their shape was anything but perfectly round. Their shape looked pliable, not hard like a sports ball. They sloped gently away from her tiny chest, expanding, as they grew downward. The bulk of them was lower than her normal breast location, gravity having some influence here, although I had expected considerably more sagging. The curve almost disappeared in the front, with a dark brown aureole, the size of a music CD surrounded her stiff nipples, each almost an inch long. Magnificent is a term that fits well.
I couldn't believe my eyes and if I hadn't been exposed to Mary's genetic engineering I would have sworn they had to be fake. Jane was still moving to the music and was clearly enjoying giving us a show. My cock was getting harder with every sway of her tits and she wasn't helping matters much by pulling her nipples out and making the entire aureola pucker from the stimulation. She smiled at me and asked if I liked her tits.
"They're wonderful," came my feeble reply, barely able to speak. I was thankful we were well into our second bottle of wine, all of us were pretty loose and neither Mary nor Jane noticed the obvious nervousness in my speech. I guess I had just assumed from the way Mary had talked that Jane would be here for dinner and be leaving soon thereafter. I hadn't expected a show like this, and had even thought that as soon as we both had had a chance to inspect her new tits, Jane would cover up and that would be that. Jane was kneading the brown caps of her tits fairly vigorously now and it didn't appear she was going to stop soon. Her upper body was getting flushed and her breathing rate had increased, clearly headed for an orgasm.
"Guess what else I've managed to do Mary," Jane said suddenly, "I'll give you an award if you guess."
"I can't imagine what else you could have done, I can't even imagine why you would have done this much, although I think they are just simply wonderful," Mary replied.
"How about you Larry, any guesses?" she asked me, as she continued stimulating her breasts.
"I I I couldn't think of anything more wonderful than this," was all I could manage.
"Just watch this and you'll see," Jane giggled as she answered.
She was squeezing her nipples pretty hard now and Mary and I were both staring intently at Jane, not knowing what to expect. All of a sudden a stream of whitish blue liquid squirted from her right nipple, shooting towards Mary, landing on the carpet. Jane let out a moan and Mary clapped her hands together in delight. Jane had induced lactation and it was clearly something that had both ladies, and myself, aroused. Jane continued to manipulate her breasts and soon both breasts were releasing their nectar as she moved closer aiming the streams of milk at both Mary and myself, hitting us in the face.
Mary jumped up and pulled her blouse off exposing her lace-covered breasts to the milk coming out of Jane's tits. Jane concentrated on Mary, squeezing one breast with both hands now, creating a steady flow of milk that now covered Mary's chest. The milk was gathering into the cleavage between Mary's tits, flowing down and disappearing under her bra.
"How did you do this, Jane," Mary squealed, "you just have to let me try this, it's so wonderful. I've dreamt about this ever since I was a teenager and it has been constantly on my mind since you first injected me with the growth serum."
Jane didn't answer Mary, she just wrapped her hand around the back of her head and drew her face to her breast, where Mary quickly latched on and started feeding on Jane's milk filled tit. I sat there dumbfounded, totally turned on by the spectacle in front of me and satisfied to watch the show. Jane had other plans though and indicated for me to suckle her other breast, which I did without hesitation. I stood and moved towards the short women with the large tits and bent to bring my lips to her engorged nipple. I reached out and grabbed the sides of her magnificent breast with both hands and kneaded the flesh softly, wanting to get a feel before I started to suck. I brought my lips around the hard nipple and cleaned off the milk drops with my tongue, surprised at the sweet warm taste of her milk. As I brought her nipple into my mouth I felt the hardened and puckered skin of her aureole against my lips. I clamped down and sucked hard, drawing as much of her into my mouth as possible and started pumping the milk out of her breast in long sucking pulls of my mouth. I pushed my hands together and drove my face into the soft flesh, completely losing myself in the eroticism of the moment. I could feel and hear Mary next to me performing similar actions on Jane's other tit. Suddenly Jane let out a scream and pushed herself into Mary and me, causing us to lose our balance and fall back onto the couch, with Jane sprawled on top of us, convulsing in orgasm. Mary and I both latched back on after getting sprayed with the milk that continued to escape from Jane's tits even when we weren't suckling. Jane's convulsions subsided eventually and her milk flow slowed as Mary and I released our mouth from her breasts.
"Oh you can't imagine how good that felt. I've been holding back my milk for almost twenty-four hours in anticipation of this. It was indeed worth the effort. I've made great strides in the last two weeks and have refined the serum considerably. I've got a booster for you in my bag Mary, but that can wait until tomorrow. The most exciting things are being able to induce lactation without drugs or six months of constant sucking, that's how they train adoptive mothers to breast feed. I fell upon that one by accident, but it certainly works fast. The second thing, and most important, is I've managed to develop a reversing procedure that can bring you back to whatever size and shape you want, and it works almost overnight. That's why I went for the big expansion Mary, I've experimented three times already, going to this size and back down again, with almost no side effects at all. It reverses the lactation also, giving us complete freedom to manipulate ourselves without fear. Of course, I don't know if there are any long term effects that haven't shown themselves yet, but frankly I could care less right now. I'm having too much fun." Jane giggled again as she finished her narrative and pulled herself off us as we sat on the couch.
My shirt was soaked from her leaking boobs, and Mary looked like she had showered her chest with milk. Mary just sat there and looked at Jane with a big grin on her face, clearly relieved with the news that Jane would be able to easily reduce her chest size and not have to be treated like a freak, or have reduction surgery.
Jane started bouncing around the room, doing an aerobic type of routine, letting her massive tits bounce every which way possible. She was ecstatic and obviously happy about being here. She had a smile on her lips and was telling us to get moving. That she wanted to get fucked and feel her big boy cousins' cock shoved up her cunt. Her demands for sex were firm and convincing, as if I needed convincing, but I was not about to damage my relationship with Mary because Jane wanted to get laid. I looked questionably at Mary, asking her with my eyes what she expected of me. Mary read me like a book and smiled back at me in a very loving way.
"Let's go downstairs to the play room, there's lots of room on the mats down there and I can sit on Larry's face while you fuck him. You'll like that wouldn't you Larry?" she asked.
"I think that's a great idea sis," I replied, "let's get going."
I was totally caught up in the sexual excitement that filled the air. Jane with her almost nymphomaniac enthusiasm, and Mary with her love filled aura. We went to the walkout basement where we found a games room, with pool table and home theater, a corner with weights and other workout machines, and some mats hanging on the wall, I imagine to be used for floor exercises. The girls pulled the mats off the walls. One side was typical leather material, while the other was covered with soft material, which they laid face up. Mary went over to a closet and pulled out a half dozen over sized pillows which she through on the mats. I just stood there watching, surmising that this was not the first time these two had gone through this setup routine.
They both approached me then and as I contemplated what was about to happen, the both rubbed up against me, pulling and tugging at my clothes until I eventually stood there naked, my excited cock sticking straight out from my torso. Both females dropped to their knees and started kissing and licking my manhood, being careful not to get me too far along. As I looked down at them licking my cock, I noticed that there was just as much mouth action between the two of them as there was with my cock. It was apparent to me that they were familiar with each other in a very intimate fashion. After a few minutes they stood and pulled me over to the mat and made me sit down. They then started to remove the rest of each others clothes, kissing and feeling each other as the did. When they were completely naked they embraced passionately, mashing there oversized breasts together as they kissed deeply and lovingly. As they broke apart they turned towards me smiling and literally jumped on me at the same time. Within seconds the two of them had maneuvered. me onto my back and Jane had my cock stuffed up her cunt. Sitting there on top of me she only rotated her hips slightly, enjoying the feel of my prick up inside of her. Mary was behind her, rubbing Jane's breasts, squeezing them until she was able to get the milk flowing again. She coated my chest with the sweet liquid, and then moved around and straddled me, rubbing her sopping pussy all over my milk covered chest. She had bent slightly, pushing her hips back until her cunt was right over my face. I stuck my tongue out and drew it along her clit, causing her to shudder with delight. She was continuing to milk Jane, spreading the liquid all over their boobs and stomachs. Jane started to slowly move up and down on my shaft, starting her milking of me. Mary was grinding her cunt into my face and I was sucking her clit and juices, ramming my tongue up her tunnel. I felt like shoving my head right up her pussy, the smell and taste was so fine, but barring the physical limit!
ations of that, I did manage to completely engulf her pussy with my mouth, at times I was barely able to breathe.
Mary came first judging by the increased flow of cunt juice and the scream she let out. I could feel mine coming and knew that it would only be a few more strokes before I succumbed. I thrust my hips upward to meet Jane on her downward strokes. I could feel Mary's hand as it rubbed Jane's clitoris, intensifying her sexual arousal along with my cock fucking in and out of her cunt. I spewed my first load on one of these upward strokes and the intensity was as strong as any I had ever had previously. Jane continued pumping and I let out spurt after spurt into her welcoming pussy. I felt her clamp her vagina muscles around my cock as she came, squeezing the last of my come from my stiff prick.
We all collapsed in a mountain of flesh, completely sated by our sexual encounter. I laid there engulfed in the satisfaction that I had just participated in the most arousing sexual encounter of my life. With a beautiful, buxom relative on each side of me, I couldn't imagine things getting any better. The ladies both snuggled up to me and started kissing my neck and face, eventually all three of our mouths meeting in a communal kiss, indicative of our mutual satisfaction and fulfillment.
Stay-tuned for our next installment. Our threesome takes a road trip just for the experience and cousin Jane creates the ultimate in expansion capabilities. Rabbits.
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