Hi again, everyone - thanks for reading this latest chapter and for being so patient. As always, comments are welcome at tusdine.deviantart.com.

SAME DIFFERENCE
by tusdine

CHAPTER 13

I woke up feeling like I had the worst hangover ever. It felt like months had passed since my last conscious thought and it seemed like it would take months more before the fuzzy and painful sensations in my head went away. I could hear female voices but wasn't able to make out the exact words, and trying to focus just made the various aches and pains in my head intensify. Once I stopped trying to think, I became aware of a strange tingling across my entire body. It didn't feel bad, just... different.

Eventually, everything started to clear up and I saw Tara's face lean over me with a big smile. She brushed her long blonde hair out of her eyes. "He's awake! How are you feeling?" I just groaned as Tara helped me sit up and handed me a glass of what appeared to be orange juice. "It's okay, Jim, don't push yourself. Drink this. You need a lot of nutrients right now."

I noticed Kara quickly approaching from my right side but my head still hurt too much for me to try and turn it. Surprisingly, I was able to down the glass quickly, and before long I felt like I could speak again. "What... what happened?" My voice was a little raspy and weak. My headache started fading a bit and I realized that I was in the garage - that is, Tara's makeshift lab - and I was siting on an antique table with a thick blanket draped over it for my comfort.

"Oh Jim, I'm SOOOO sorry," Kara exclaimed. "I lost control and I, um, I hurt you real bad."

The memories started to come back to me. Even through my pain, I felt that if I had to be seriously injured, that was probably the best way for it to happen. Tara handed me another drink and I gulped it down before speaking again. "I seem to be okay now. Don't worry about it. I'm just glad that we have a genius like Tara around to fix me up."

"I did more than just that, actually. I felt that it would be best to avoid this sort of thing happening again, especially as Kara and I grow... both in size and strength." Tara had a very sly grin on her face as she spoke.

"What do you mean?" I asked.

"While you were unconscious, I altered your DNA. Just a bit."

I coughed up some of the drink. "Oh, is that all?! What did you do?"

Tara seemed unfazed. "Basically, I increased your body's strength and durability. Not unlike how Kara and I are much tougher than we appear."

"You made me as strong as you?"

Kara spoke up. "Well... not exactly..."

"I'll be honest," Tara started, "We've come to realize that we are quite fond of the fact that you're a fairly average person in terms of size and strength."

"Gee, thanks!" I replied a little bitterly. It was hard to be too upset considering that these amazingly gorgeous women wanted me at all.

"Try to understand it from our perspective. We're clearly obsessed with our bodies, and we desire nothing less than to grow larger and larger in our own ways. If I were to make you as strong as us, then it would defeat the purpose of us having such massive and heavy body parts."

"We LOVE being able to feel just how much we've grown," Kara sighed happily. "So Tara made you a bit tougher so you can take a little more roughhousing."

My head was spinning again. I started realizing that I didn't have any control over much of anything in my life anymore, but things had been working out great so far. "Just... promise me that you'll try to restrain yourself a little bit?"

Kara giggled cutely. "I can't make that promise!"

I turned to finally get a good look at her and my jaw dropped. She wasn't even bothering to wear proper clothing over her breasts anymore, and I doubted that anything from the oversized clothing store would be able to help her. She seemed to have wrapped a sheet around her swollen bosom, but it was folded in such a way that most of her skin was exposed. Despite the sheet being folded up, I could still make out the shape of her nipples as they poked through the material. The lowest point of Kara's utterly enormous tits reached a little over halfway to her knees. She was idly stroking them, seemingly without thinking about it, and it was clear that she was unable to reach her own nipples anymore. Her areola looked bigger than dinner plates - I know this because I could see most of them extending past the sheet she had wrapped around her.

Before I had a chance to properly process Kara's changes, my eyes caught Tara's new body. At first glance, it looked like her body ballooned out below her waist. I soon realized that I was looking at the front side of her gigantic ass. Yes, most people have a "rear end", but Tara... her rear also had a front. Her hips certainly must have grown, but it was nearly impossible to tell how much due to the growth of her butt, which seemed to extend beyond wherever her hips ended on both sides. Her massive cheeks must have been over four feet wide - probably closer to four and a half feet. Not unlike Kara, Tara was wearing a sheet - but hers was tied around her colossal butt, so tightly that the tops of her cheeks were squished up several inches above her hips. Tara's upper thighs had filled out a bit as well, to balance the sheer size they were carrying, but the rest of her legs seemed more or less normal. For an extremely tall woman in incredible shape, that is.

Above her mind-blowing booty, Tara's body tapered into a surprisingly thin waist (although it was nothing compared to Kara's - not that you could see Kara's from the front anymore). What surprised me above that were Tara's breasts. The purple tank top that encased them looked extremely familiar. Suddenly, I realized that it was the exact shirt that Kara was wearing the first day I met her, before she put on my spare uniform. Tara's chest had finally reached the twin volleyball size that Kara's was back then - back before the growth spurts, and before the twins' expansion had really, truly, started.

Then it struck me that I had to look up further than usual to see her breasts - it seemed that Tara had grown another inch or so taller. I looked back over at Kara and estimated that she had grown around an inch or two total since I first met her, and I got anxious to see how much her ass had grown since the last time I saw her. I wondered just how long it would take for Kara to surpass my height... and just how tall Tara would be by then.

I felt some pleasant sensations in my lower body, and soon I started to feel normal again. As I started noticing that the sensations were very familiar, I finally realized that I was completely naked. My penis was now fully erect... and then some. It appeared to be a good inch, maybe even inch-and-a-half longer than it used to be, and slightly thicker.

"Hey!" I said, startled. "I thought you said you were 'fond' of me being mostly average." I gestured at my hard member. "Hell, this was a little above average!"

Kara stepped closer to me and before I knew it, her barely-covered tits were rubbing against my cock. She immediately bit her lower lip and shuffled around, trying to move her heavy and ponderous breasts. Tara blushed and said "It's true, and there was nothing wrong with your size... but I was already making adjustments, and I wanted to ensure that you could still enter me from behind. For a little while longer, at least."

"She wanted to make it even longer," Kara said as she managed to position her deep cleavage in front of my penis. "We had to compromise. Just because I'm basically a great big pair of titties, it doesn't mean that the rest of me isn't really tiny. I'm gonna, like, need to get used to your new size." And with that, she inched forward and my cock was engulfed in a canyon of breast flesh.

Tara giggled. "If you're going to get used to it, you need to put it in the right place."

"Oh, this IS the right place," Kara panted, her hands pushing her juggs together. The room was silent for who knows how long as she tried her best to manipulate her tits around my dick - with amazing results. Tara started to caress her own tits, and soon lifted up her tank top to play with her nipples as she watched us. It seemed like Kara was having orgasms every other minute - smaller ones than I had seen her have previously, but more than enough of them to make up for that. I hadn't even been doing anything. She seemed to know what she wanted and I was having a great time just letting it happen.

Eventually, I shot a load of cum into her cleavage. She was so big that I couldn't see any trace of it. Kara slowly pulled away from me - a particularly vivid sensation, since I had just orgasmed and her breasts felt so warm and soft. Before I had a chance to process another thought, Tara gently pushed me so I was laying back down on the table, then she climbed over me and slid onto my still-erect cock. "I just had to test my handiwork personally," she purred. "Oh, Kara, you don't know what you're missing..."

Kara wasn't paying attention to her sister, though. I pried my eyes away from Tara's fantastic tits, which were taking up most of my field of vision as she fucked me, and looked over at what Kara was doing. She was awkwardly trying to reach one hand deep into her cleavage. When she managed to do that by reaching under her breast instead of over, she removed her hand, which was mostly covered in my semen. Kara sniffed it, gave a pleasantly surprised look, then licked her hand. She seemed to savor the taste for a few moments, then licked the rest of the cum off of her hand like she was dying of hunger. "Mmm... Tara, you made his jizz taste sooo good," she moaned as she reached into her cleavage for more.

Tara's body tightened as she reached orgasm, then a small laugh burst out. "Sis, I didn't adjust that in any way." She lifted off of my penis, then adjusted it so that I was fucking her butt cheeks. She may have teased Kara for ignoring vaginal sex, but I had a feeling she'd go back to the feeling of my cock between her expanding cushions. Tara was soon moving faster again, and her ass was slapping against my hips and thighs like it had the last time we did this, but it didn't hurt nearly as much as before. Barely at all, really. I was able to focus on her heavy flesh pounding against my body and the implications of it. Her sheer size. The massive ass with firm, tight skin.

I had to see how much more my body could take. "Faster!" I growled. Tara was more than willing to accommodate. She picked up speed and her colossal butt was slamming against my body faster and harder. I moved my hands so that they would slap (or be slapped by) the cheeks each time they moved down, and that drove Tara wild. I could barely hear the table creaking, but I definitely noticed when at least one of the legs broke and we fell down - hard - onto the garage floor. It surprised me and it hurt, a little bit, but not enough to stop us. Kara giggled somewhere above us.

I started making grunts and moans that indicated that I was about to finish again. Picking up on that, Tara gracefully moved off of me and put my dick in her mouth. She coughed a bit at first - it had to have been her first time doing this - but she moaned and she used her tongue well enough to finish me off. I shot my spunk down her throat, but she could only take so much before moving away from my penis. The rest of my load landed around my stomach and crotch. Tara greedily swallowed the remaining jism that was in her mouth, then moved towards me. To my surprise - and Tara's as well, I'm sure - Kara rushed over to lick some of the remaining cum off of my dick. Her enormous boobs landed on most of my body and Kara pressed her face down as hard as she could into her cleavage to reach my tip. Tara cried out in jealousy.

When Kara was finished, she stood back up. "First of all, that was mine," Tara snapped, "And secondly, your tits got more of it than your mouth did." Kara tried to reach around to the front of her bosom, with no luck. Her tall sister knelt in front of her and wiped some semen onto her finger, then popped it into her mouth. Then she did it again. Then she hefted up one of Kara's mountains and licked the rest of my cum off of it directly. 

Kara emitted a cry of pleasure that turned into a whine. "No fair," she pouted.

"You stole it from me first," Tara said matter-of-factly.

As the events that were taking place in front of my eyes took place, I had more and more difficulty focusing on it. My headache was returning and I felt extremely parched again. This kind of activity was probably not a great idea for someone in my condition, improved body or not. I tried to ignore the bickering sisters as I stood up and made my way towards the kitchen, for some painkillers and a lot of water.

TO BE CONTINUED