"Oh, I just wondered, because you filled my belly with it. Is your, whatever, growth thing, does it transfer or share or...?"
I walked towards the bathroom, this line of questioning making me a little apprehensive. "Uh, no. It's just me. Again, why?" A beat of silence. "Nicole, are you bigger?"
She stepped into the hallway, a towel wrapped around her, but even so, I could see her previously quite generous tits were pushing the cloth further out than they had at first. If I knew her better, I'd have been better able to judge, but her hips seemed wider, her butt bubbled out a touch further, her lips a bit fuller. She didn't look to be actively growing, but there was more of her, no question about it. I had just gotten calmed down, and the sight of her blew it all away; I could feel the seams of my pants stretching as my rod thickened and swelled down one leg. If she had a condition similar to mine, as she evidently did, that explained some of the connection we had. Such as, for instance, why I was walking towards her as if drawn by a magnet.
Nicole looked worried as I approached, understandably so. She wasn't even used to my capabilities yet, and suddenly her body had jumped on the size train with me. "So we're clear, all...this isn't you? You didn't make me get all curvy?"
"Curvier. You were luscious before. Anyway, no, not directly. It's possible my output was a growth trigger, but it looks like this is something you've always had and just never known about." I reached a hand up to her cheek, and she leaned against it.
"Oh. Wow. So, um, I take it you like it, based on how hard you looked. Do you wanna do lewd things?" She looked at me with a small smile, and lust in her eyes.
"Very much so. I want to show you what I can do, not to mention see what you can do. I owe you one." I winked at her and licked my lips, and she shivered in anticipation. She led the way to the bedroom, and dropped the towel as she looked back at me with a grin. This was going to be good.
Nicole lay back on the bed as I stripped off my clothes, sighing when she caught sight of my eagerly stiffening schlong. Indeed, that was the main event when it came to me, but I owed her some additional attention. I climbed into the bed and began kissing my way up her thick, rounded thighs, slowly working towards the prize. Her breath quickened, and she began whispering encouragement, a good sign that I was doing something right. Her scent was intoxicating, light and clean after her shower but with a heat that seemed to roll through me with every inhale. Then my lips and tongue reached her plump nethers, and I was hooked instantly.
She reacted with a breathy, "Oh yes, yes baby, right there, just like that, just like that!" I registered the words, but I couldn't have stopped if I wanted to. My tongue pressed firmly on her clit, tracing small shapes that each elicited new moans and cries, before moving downwards to push a little ways inside her. She was already wet, and the taste went straight to my head, demanding that I get more. I couldn't get any air when I pushed that close, but it didn't matter. I needed to eat her out, I was desperate to please her, I wanted to stay between her thighs forever. I had just gone back in after catching my breath when I felt it; Nicole's body quivered, I was rewarded with a burst of slick deliciousness, and her legs tightened around my head, holding me firmly in place. Then, the pressure increased, not through the pull of muscle, but because she was growing.
I was pushed hard against her plush, soaked pussy as her thighs filled out, swelling even thicker as she demanded "don't stop, don't stop, fuck yes, more, don't you dare stop" in a voice I could barely hear, my ears covered as they were. I obliged her, licking and kissing with abandon, every flick of my tongue only fueling her growth, until I started seeing stars. It was still several seconds after my efforts slowed before I was able to pull back and gasp for air, and yet, once my brain was getting a modicum of oxygen again, my instincts were to immediately go down on her again. I resisted, laying my head on her thigh while I waited for the dizziness to pass.
"Oh fuck, babe, are you okay? Say something, tell me you're alright." Nicole was coming down from the heights of her pleasure, and it made her sound only mildly concerned.
"Ya, yeah, I'm, hoo, I'm good. You want, huh, more? You taste fantastic." I kissed the sensitive skin of her inner thigh, the promise obvious.
"Take a break! I don't want to lose you," she said, patting the pillows next to her. I pulled myself away, following her invitation. "I think I grew some more. Did you notice?"
I raised my head for a moment, raised my eyebrows at her, then dropped back to the pillow. "Yeah, I noticed. Kinda curious, suggests that your trigger is just, like, me. Which is weird; I've known people with an arousal trigger, or a food, but not a person. Felt amazing to be right there for it."
"I figured you enjoyed it, considering the evidence. Fuck, that looks good."
I looked down at myself in the dim light, and blinked a few times. The tip of my cock was near my sternum, which meant it was pushing 15" rather than the foot I'd tried to limit myself to. I'd lost my hold on my size, and it hadn't even registered. This girl was dangerous; I had years of practice holding my condition in check, even in contact with others like me, but somehow Nicole was connecting with me so intimately that I couldn't contain my excitement. She reached over and stroked the firm, hot length of my shaft, from base to tip and back down, and I couldn't help but moan and twitch my hips toward her hand.
"Wow, someone's eager. Mmmf, baby, your dick is so long! Is that for me? Are you getting all huge because you want to stuff that massive cock in my pussy?" She kept slowly stroking as she spoke, which went straight to my head, and I let another half inch of length add on as a dollop of pre dripped onto my chest. "Oh my god, it just keeps growing! I need it, big boy, I need it now. I have to feel what that's like. I've never had anything that big inside me, and it looks so good."
I'd caught my breath, as much as possible with her stimulating me to an unreasonable degree with her touch, and decided to oblige her. I sat up, swung myself between her legs, and laid my rod atop her tummy. Her eyes went wide as she realized how far up her body it reached, a mix of worry and desire on her face that I found especially arousing. "You sure you're ready? With how this has been going, we'll probably both get even bigger..."
She interrupted me before I could finish my thought. "Yes, please, I want that, put it in me, fuck my pussy, please daddy I want it so bad!" She pressed her huge breasts together, their new size overflowing her hands, an enticement I couldn't resist. I bent down to kiss them, only to have her forcefully bury my face into one as soon as I took her nipple into my mouth. I couldn't breathe, again, but I didn't care. The sounds she made were extremely encouraging, as was the slow swelling of the soft flesh under my lips. Every touch was electric, building up the strange pressure that drove my condition, making me desperate to fill her completely and see just how far we could go.
When she let me pull back, I gasped for air, but my focus wasn't on regaining oxygen. I shifted to guide the slick, pulsing tip of my member towards her pussy, feeling her shudder at the sensation. It seemed at first glance that I was too far gone, already too big to squeeze inside. As wet as we both were, as plump and inviting as the entrance was, I was simply massive, and she'd never had anything like it. Considering how perfectly we matched, though, I should have known that there was no stopping our union. I felt the push against my tip as her ass billowed larger, raising her up to meet me, and the glorious warmth parted and enveloped the throbbing head, growing to match me as I took that long, slow first stroke. I took my time, partly to let her adjust, partly because it felt so good I would have lost all control if I moved with any less care. As it was, I still had another inch to give by the end of entering her than I did when I started.
Nicole had gone quiet as I slowly stretched her out, only letting out the occasional whimper. I made it further than I expected, but still had a few inches left when I bottomed out; she gasped at that moment, filled with as much cock as she could handle. At least, for the moment. I locked eyes with her, silently checking to see if she was okay. "Kiss me," she said, no concern in her gaze, only hunger for more. I lowered my mouth to hers, and as she seemed to want to devour me, so passionate was the kiss, it was like we'd completed a circuit. I began to move inside her, falling into a steady rhythm, and each thrust had a bit more room to push into. I could feel her growing beneath me, the cushiony softness of her body quivering wonderfully with every movement. As she grew more comfortable, the words started again; "Fuck, yesssss, oh my goodness, fuck you're huge, so good, right there, just like that, just like that, don't stop, oh fuck me, harder, yes!"