Kinktober Day 6: Mutual Gaining

I cheated a little bit on this one since I've had it written for a couple years. It wasn't quite polished enough to share before, but it was a perfect fit for the Day 6 prompt, so I figured it was as good a time as any for edits! 

This one is pretty short and sweet, and no gender is given for either character. 

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“You’re dangerous,” you said, breathless. You leaned back in your chair, letting your stomach swell outward. It groaned and gurgled as it churned ice cream into fat.

I laughed and scooped another spoonful into my mouth. “You have no idea.” You’d tapped out after your first medium Blizzard. I was halfway through my second large and wondering why I hadn’t ordered a third to eat later. Blizzards were something we’d bonded over in the early days, back when I was just a friend with a big appetite and you were certain you’d always be small. The first time you tagged along with me, we ordered our enormous cups of soft serve with our preferred additions (I always got Oreo, and you chose a brownie batter Blizzard that day) and ate them outside, enjoying the summer heat. It took so long to convince you I was flirting with you, and even longer for me to get you to admit you liked my belly and wished you had one to match.

We were a year into our thing, and you still couldn’t hope to match my appetite, no matter how hard you tried. I teased you when you ordered a medium, but it was an upgrade from the itty-bitty small you ordered that first time.

You lifted up your shirt and circled your hands over your bloated tummy. It was plain to see that you were starting to get chubby. Your belly curved gently over the waistband of your jeans, and I knew it would continue to do so after your binge was digested.The bloat bolstered your curves, exaggerating the softness you’d put on. It was subtle, but every bit of you was now covered in a thin layer of chub. No one would call you fat, especially if they saw you with clothes on. But I could see all the signs of someone who was beginning to look… well, more like me. Your hips and thighs were pressing outward against your jeans a bit more. Your arms were getting thicker. Your face was just a touch softer. Nothing anyone would comment on, but enough for me to bite my lip every time I noticed something new. I especially loved how much was going to your plump little love handles and made sure you knew it.

I finished the last of my Blizzard and stood, pulling up my own shirt. You couldn’t even tell I’d eaten anything without a very practiced eye. I’d been too fat for too long for my indulgences to be as obvious as yours. I moved to straddle you, the chair creaking beneath us as I did. (I hadn’t broken a chair yet, but it was only a matter of time.) You groaned a little at the extra weight on top of you. “I’m too full,” you whined. I pressed my soft belly gently against your bloated one, ice creamy coolness radiating through our skin. I placed one of your hands on my gut and left the other to explore your own. Your fingers sank into my abundance of flab almost immediately. You glanced up at me for a moment, at the perfect angle to see my double chin as I smiled at you. Then your eyes dropped down to my belly. The look on your face was a heady combination of lust and covetousness.

I ran my hands along your sides, giving your perfect little love handles a squeeze. “I won’t be able to sit on you like this soon. Your giant gut is going to get in the way.”

Your face lit up through the haze of fullness. “Yours isn’t going to help much, either.”

I smiled at you and tipped your chin so I could look you in the eye properly. “That’s probably true.” It was highly unlikely I would ever stop growing. Every time I thought I’d reached a new plateau, something would kickstart my gains again. Slowly but surely, I was becoming enormous.

Still, I knew it wouldn’t be long before you overtook me. I was a bad influence. Not on purpose, but just because of who I was. Between my knack for figuring out how to make everyone’s favorite food just so and my fondness for testing my limits at every other meal, I seemed to give everyone around me permission to give in to their every gustatory desire. You were proof of that.

I could outeat you without trying, but you were slowly catching up. I had normalized overeating to the point that you had started to see your regular meals as small and somehow unsatisfying, even when they left you hugely bloated and unable to do anything but lie down and beg for belly rubs. You had started eating incrementally larger portions, and while your metabolism still seemed ready to burn most of your excesses off, some of it was sticking.

It was easy to envision a future where you’d caught up. As I rubbed your ice cream-stuffed belly, I could almost see how all your future fat would settle on you. I imagined gorgeous love handles melting into a massive gut that dwarfed my own. I imagined thickened, soft arms wrapping around me, pulling me tighter against you as I sank into soft thighs so thick they made me want to get up and get thirds. I could see a softer face with a precious cushion of a double chin framing it. Plump fingers perfect for me to put in my mouth as I ground slowly on top of you. An ass that wouldn’t quit and had enough jiggle that you felt it with every step.

I could see all the food it would take you to get there, the extra bites I’d feed to you to help increase your capacity by the littlest bit. The soft purrs of encouragement in your ear when you were starting to flag. All the teasing about how small you were compared to me that inevitably made you wonder what it would be like to catch up, which in turn makes you impulsively order a little extra. Slowly and steadily, you’d round out and thicken until we’re perfectly matched. And by then the indulgence would be so commonplace you won’t be able to stop. You’d keep growing until you were heavier than me, until your measurements put mine to shame. Until you were the one teasing me about needing to catch up. My plump little dumpling, all filled out.

I slid off of your lap, heart aflutter as I took you in as you still were. I pulled you to your feet. “Let’s go give that tummy some proper attention.” I felt my heart race as I watched you cradle your tummy, the skin of it slightly red as it stretched out in front of you. How could I not want more of you?