Thanks for reading the latest chapter of Same Difference! I hope everyone enjoys the direction the story takes in this chapter. Please leave comments either on Overflowing Bra or on my DeviantArt page - tusdine.deviantart.com SAME DIFFERENCE by tusdine Chapter 10 "Time?" I asked. "You mean..." "The hormone-altering process will be completed tonight," Tara said breathlessly. "We can drink the milk now and it will begin our new stage of growth." Kara held up the two small bottles. "We just have to drink some every day, and we'll, like, keep growing bigger and bigger, and faster than before!" She started bouncing on her heels out of excitement, her gigantic breasts wobbling and shaking within the tight tank top. I had a million things I wanted to say, most of them exclamations of pure joy, but before I could utter a sound, Tara snatched one of the bottles from her sister's hand. She opened it and downed the milk like a shot. "Whoa! I thought you were going to try and mask the taste," I said in surprise. Tara blushed. "Well, um, I suppose I just got caught up in the moment!" She smacked her lips a bit. "Oh, hm, it actually wasn't altogether unpleasant..." It was actually Kara who seemed to be a little nervous all of a sudden. "It IS kinda weird to drink something that came outta me," she said, opening her bottle and sniffing it. I looked at her with a little confusion on my face. "I thought you were really excited abou--" But before I could finish, Kara shut her eyes tight and drank down the milk in a few gulps. "Aah! That was pretty yummy! I can't believe we've been getting rid of all of the milk so far!" "It wouldn't have been safe for us to drink any of it before tonight, Kara, and there was too much of it for us to save," Tara explained. "Besides, I'm not sure I would want to just... drink that as a regular beverage." "Well, get used to it," I chuckled. "You'll be drinking a little every day from now on!" The idea of the sisters both drinking Kara's milk on a daily basis was incredibly arousing to me, even without the breast-and-butt growth that came with it. Both Kara and Tara bit their lower lip and rolled their eyes back, presumably thinking of all the extremely pleasurable expansion they were going to start feeling around the clock. "How long does it take to start working?" "Yeah!" exclaimed Kara. "I'm so sick of waiting!" She was acting a little childish, but it was really cute and I couldn't blame her, since she had been waiting for a long time to begin this process and must have been very pent up. "In less than a day we'll begin our slow but constant growth, and we should start feeling it again a little bit before it actually begins. Considering our current sizes, the changes should start becoming noticeable a day or two after that." Kara clapped her hands together in glee. "Oh, but there is a chance that our bodies may have a stronger initial reaction to the milk, not unlike an allergic rea--" Tara suddenly moved her hands to her incredibly wide ass and tightly squeezed as much flesh as she could. She shut her eyes and clenched her teeth as if she was experiencing a great deal of pain. I cried out "Tara! Are you hurt?!" "N-no," she muttered through her teeth. "Feels... amazing..." It was Kara's turn next, as she grimaced in what appeared to be pain as she grabbed and squeezed a tiny part of her massive tits. She began to moan. I began to wonder if this was what Tara had been trying to explain. It wasn't long before I realized that it was, when Tara's ass and Kara's boobs began to grow in front of my eyes. First I noticed Kara's tank top begin to tighten and saw more of her breasts begin to squeeze out from the sheer material. I looked over at Tara and could see that her ass was slowly moving further out from her hips, pushing back Tara's hands. Kara's nipples soon became completely visible through the tank top as Tara's underwear strings grew thinner and thinner. In less than a minute, Tara's panties SNAPPED apart as Kara's swelling chest tore the tank top open, her heavy breasts falling out and bouncing with their newfound freedom. They didn't seem to extend much farther from her chest, but instead seemed fuller all around. Tara turned around and twisted her head to look behind her. The results of her sudden growth were almost the opposite of Kara's - her ass had grown further out but remained just about as wide as before. There was a few moments of stunned silence, then the sisters shrieked. "That... was... AWESOME!" Kara shouted to her sister. "Yes! I can't believe how good that felt! Oh, if only we could grow at THAT rate...!" The twins continued to swap notes for a couple of minutes about how their expansion felt and how it compared to when they were growing up, at which point I heard one of their stomachs grumble. "I'm starving," Kara whimpered, her hand on her flat stomach. "Me too," said Tara. "A result of the growth, to be sure." Fortunately, I had the sandwiches that were prepared earlier. The girls gobbled down their small meals, then split MY sandwich and devoured that, too... at which point they asked me for more food. I dashed off to the kitchen to throw something together quickly, taking a few bites of food here and there to keep myself satiated. When I returned to the living room with the tray loaded up, the girls were trying to put on some of the other items they had brought downstairs to show me. The only thing was that they couldn't fit into them. "So now you have nothing to wear?" I asked, trying not to drool. "These are just the smallest clothes we bought," Kara explained. "The bigger stuff should still fit." "But not for long!" Tara exclaimed, slapping her giant ass playfully, resulting in a storm of jiggling. Kara shouted something in agreement as best as she could with a mouthful of food. "Kara, you're going to choke if you eat that fast. Jim, would you mind getting some more drinks?" It was pretty hypocritical of Tara to scold Kara about eating fast based on the speed she was chomping down her own food. I stood up to walk to the kitchen, but Kara swallowed her mouthful of food and jumped up as well, her boobs following just behind the rest of her, at which point they fell back down and bounced. It was incredible how these breasts were firm enough to practically float in front of her chest, yet be affected by gravity enough to have a beautiful teardrop-like shape, which seemed to prove their status as huge, all-natural boobs. Natural apart from the genetic engineering, anyway. "I'll come with you!" Kara said excitedly. "I just gotta see how my girls move now!" I let her get a little ahead of me so I could at least see her newly engorged tits bounced from behind. Just a few minutes ago, each of Kara's breasts were wider than her minuscule waist, but now they were even bigger and truly overwhelmed her upper body. They seemed to bounce a bit less, which I'm sure must have been due to the extra weight, but they jiggled more with each step and the fleshy sound they made as they slapped against each other was even louder. She looked like if you were to draw a straight line through the center of an infinity sign, which was very appropriate and got me thinking about how they could possibly get even larger. Kara seemed to be thinking the same thing. "Don't think I'm crazy, but I already think these are, like, kinda small," she said, turning her head so she could see me. "I haven't been able to stop thinking about how BIG I'm gonna get, and now that I know they're really growing more than ever, this is like... absolute zero!" "God, I can't wait to see you grow more too," I said anxiously. "Just when I felt like I was getting a little used to the rate you two were growing at before, you both start growing even faster. I can't believe what I saw." Kara giggled as I grabbed some soda. "I can't believe how AMAZING that felt! But it's too bad I can't grow that fast all the time." She stepped over to me and pressed her naked breasts hard into my side, and they overflowed around me. Kara pressed a little harder until my stomach and pelvis were engulfed in her cleavage. It was incredibly warm, and having a large part of my body surrounded by boob just felt right. "Mmm... I guess that gives me more time to enjoy growing, though..." The moment was over in a flash. "Hey! Hurry up, I'm thirsty," shouted Tara from the living room. Kara pulled back and freed me from her wonderful bosom prison with a scowl on her face. "Here, just take the soda and I'll grab some glasses with ice," Kara said with some bitterness. I sighed and took a bottle of store-brand soda back with me to the living room. Kara appeared soon after, filled the glasses with soda, and passed them to me and Tara. In my excitement, I thought of something and couldn't help but ask the twins. "So, uh, what would happen if either of you were to drink more of Kara's milk in a single day?" "I'm honestly not one-hundred percent sure," Tara explained, taking a sip of her soda, "But my hypothesis is that in the best case scenario, nothing would happen." Kara pouted upon hearing this, but I got the feeling that she already knew but didn't like to be reminded of the fact. "And... the worst case scenario?" I asked. "There is a chance that it could overwork our bodies, increase our metabolism beyond even our advanced levels, and result in a painful death," Tara said matter-of-factly, "Or, most likely, nothing would happen at all." "Hmm, I hope it's the second one," Kara said. "I can't stop thinking about how good my milk was. I'm gonna have to take a little more tomorrow and see what happens." The girls continued consuming their food and drinks until Tara suddenly stood up and ran down the hall. She returned a minute later, looking a little pale. "It appears that I'm still feeling a little nauseous. Perhaps the changes are just finalizing, or it could be the sudden growth..." "Or all the food you ate?" I offered, realizing too late that in general it's not a good idea to accuse a woman of eating too much. Fortunately - for me - the girls were preoccupied. Kara groaned uncomfortably. "Ugh, I still feel a little icky too, and tired," she sighed. Tara rubbed her stomach, which had only the smallest bump after eating so much. "It's still a bit early, but after everything that happened, maybe we should call it an early night and rest up." Kara agreed, and I said goodnight to the twins. I cleaned up the food and dishes from the living room and put everything into the dishwasher. After doing some more straightening up, I decided to go to my bedroom to do some unpacking. My thoughts kept returning to the vision of Kara and Tara growing right in front of my eyes. Eventually thinking about this became too much for me to handle, so I quietly opened my door to see if the girls' bedroom lights were still on. They weren't, and everything was quiet, so I gently closed the door again and turned off the main bedroom light. I crawled into bed, my cock hard as a rock from simply remembering the events from just earlier that evening. Just as soon as I placed a hand on my shaft, my door slowly opened. A massive pair of boobs made their way into my room, followed by Kara's little body. My memories had nothing on those mammaries. Their lowest point reached down to her hips and they extended at least fifteen inches from her chest. They quivered heavily as Kara slowly entered my room, closing the door behind her and eventually I noticed that she wasn't wearing the panties she had on downstairs, making her completely naked. I was too stunned to even attempt to cover up my penis. "Jim," she whispered desperately, "I need you. Right now." I sat straight up in my bed, which is a lot harder than it looks on TV. "Are- are you feeling alright? You were--" "I lied," she said quietly. "I put something in Tara's soda to make her feel sick so she wouldn't bug us tonight. I can't wait another second, Jim. I've been so horny since I started growing again a few weeks ago, but I couldn't do anything about it. After growing so much tonight... Jim, I'm, like, ten times hornier." She kneeled onto my bed and began to crawl over my body. Her tits hung from her chest, the big, pink nipples barely brushing against my legs as she moved closer. "Oh god, Kara, I can't wait either. You're just so... so inc--" Kara suddenly leaned back so she was on her knees, and her breasts swung up and knocked me in the chest with great force. I feel onto my back, my head almost hitting the headboard. Kara grabbed my cock in her left hand tightly, eliciting a pained groan from me. She released some of the pressure. "Sorry, it's my first time," Kara whispered. "I always thought it would be more, mm, romantic, but right now I just need to be fucked by this cock. Does that make me slutty?" She began slowly moving again, putting herself into position on top of me. "No!" I said a little too loudly. "No. We've known each other for a bit longer than many people do before they have sex, and OOFF--" I was cut off, yet again, as Kara lowered her body, dropping her giant juggs onto my chest - my entire chest. The sheer weight of them knocked the wind right out of me. I was in a bit of pain, but it's a very fond memory, looking back on it. Her tits were squished against my upper body and covered so much area. I took a few quick breaths and struggled to remove my shirt so I could feel Kara's skin against mine. However, my shirt was trapped under the weight of her breasts. Kara moaned softly as I pulled the shirt until I managed to drag it - along with her tits - towards my head. Kara was grinding her naked pussy on my painfully hard cock and was already leaking with excitement. I threw the shirt onto the floor and saw that Kara's breasts had been shifted so her big, erect nipples were pointing in my general direction, each breast on either side of my head like they had been during our last touching session a few days prior. I reached around to grab the side of both tits and press them into my face so that I could lick and nibble as much flesh as I could. Desperate to begin, Kara fumbled with my penis and seemed to be trying to insert it into her moist pussy. I let go of her magnificent breasts, grabbed her hips with both hands, and guided her onto my throbbing member. She was so wet that I slipped right in, but at the same time, her pussy was very tight. The pressure hurt me only a little bit, but the pleasure of having my cock surrounded by the warm wetness while I squeezed her massive tits all over my head more than made up for it. I'm sure it hurt Kara a lot more, but based on her facial expression - her eyes rolled back and her mouth open, breathing heavily - she was also feeling great. "Oh god, fuck me," she hissed. "I need this so bad. Touch my titties..." I moved my left hand from her hip and grabbed as much boob as I could as I continued licking and biting. My other hand grabbed her right butt cheek tightly as I thrust my cock into her over and over. I'm not ashamed to say that after only a couple of minutes, I was ready to blow my load - I had been lusting after this woman like crazy over the last ten days and she had a body that was literally impossible for a normal woman to have, and at the moment she was desperate for my cock... not to mention the fact that I had just seen her grow bigger tits right in front of my own eyes just a few hours earlier. I felt differently at the time, regarding early ejaculation, since I wanted to really impress Kara... but there was nothing I could do about it. I shot my cum deep into Kara, and the intense orgasm I felt made me grasp her right breast with my left hand and her left ass cheek with my right had as forcefully as I could. Kara clearly liked the sudden action, as she bit down on her hand and whimpered as her body twitched due to her own orgasm. Something told me that Kara was far from finished, though. The poor girl had to have been much more desperate for physical affection than I was, since she hadn't been able to masturbate for weeks while gradually achieving her life's dream... which also had the side effect of making her body extra sensitive. I had stopped thrusting and was breathing heavily after my orgasm. Normally, during the refractory period, the last thing I want to think about is sex... but with a woman like Kara on top of me, her gigantic boobs all around my head and her svelte figure riding my cock, I was still hard as hell. Before I could even think about doing anything, Kara slowly started to move up and down on my member, breathing hard through gritted teeth. Soon, she was moving faster - even faster than I had been going moments earlier. It didn't feel especially good to me at first, as I was still recovering, but it didn't take long before her gyrations and hot pussy (and my desperate desire) had me fully ready to go again. Kara began to twitch again - she seemed to have orgasmed a second time already. I grabbed her soft tits using both hands again and went to town on them. Kara held back a scream but a faint squeal still made it through her closed lips. She lifted up her body a few inches, pulling back her breasts from around my head, and - her arms shaking - pushed her right nipple towards my face. It was easily over two inches long now and about half as wide, at her full level of arousal. I opened my mouth to take most of the nipple in, trying not to gag on its entirety. Kara began moving wildly on my cock at that, so I bit down on her nipple. She dropped her head down onto her left breast and let out a scream of pure pleasure, but in doing so she had stopped moving up and down. I moved my hands to her hips, held on tight, and thrust as hard as I could, over and over. A couple of minutes later, Kara had another shuddering orgasm, followed soon by one of my own. I had never been much of a cuddler, but after what just happened I wanted to hold onto Kara tight and never let go, and hopefully have her mammaries on or around my body. That, however, was not to be. Kara gently pulled off of my penis, our mixed juices dribbling down onto my pelvis, then got up from the bed. "Oh, WOW," she whispered. "That was WAY better than I thought! Sorry I can't help clean up, but I gotta go back to my room in case Tara wakes up and suspects something... see ya!" She left my room, quietly closing the door behind me. I couldn't believe she just bailed on me like that! I awkwardly got out of bed, trying to avoid making a mess, and went to the master bedroom's attached bathroom to clean up. I had a million thoughts in my head, and sort of a half-boner again, but I passed out almost as soon as my head hit the pillow.