… the Nanite Mix Up!?

There were two nanite vials. And I mixed them up. I think.

My partner Kimi and I had ordered the nanites from an International vender of sone renown. They were custom pills. Physical and behavioural mods. We’d even included a nano fixer in the order and could make these changes permanent, lock them in if we decided too.

Kimi had been excited by the idea. Like really excited.

We designed her body. She’s petite. Pale skinned, freckled. Brown eyed. Slim with pert breasts. And we just tweaked things. She wanted rounder heavier breasts topped with larger more pronounced and sensitive nipples. She’d smiled at me when she sad that, a mischievous smile, slightly devious. Perfect milk white complexion with pinkish hint to nipples and sex. We’d talked about them a lot and Kimi made sure I really liked her breasts. Again with that mischievous smile. I should have figured it out. Two inches shorter. That had made her excited and she’d reached into my pants and gripped my cock.

“How do you want my clit?” She asked as she twisted her hand gently on the head of my cock, brown eyes avidly attentive and intesely hungry. “I want it just a bit bigger. Something I can grip between my thumb and forefingers and gently… twist… if you know what I mean. I always envied your cock and wanted something just a little bit bigger. I think you’ll love it… it will grow erect. But nothing like yours. Tiny. A teeny tiny clit. I can imagine it. Can you?” She asked as she rubbed up and down my erection. I almost could. No need to imagine now. I know exactly what she means. But I digress.

Sliightly wider hips. Subtly altered, but obvious to friends and family. But the real kicker was the libido tied directly to submissiveness, at least sexually. Submissiveness would loop on back into arousal.

“You know let’s go all out. A horny bimbo.” Kimi said. “Like dumb and ditzy and hungry for cock…” her hand stroked and coaxed me. I agreed as my fingers danced along her moist swollen lips.

“Babe! You’re the best!” I said as I deftly slipped a finger in. Moist, warm, tight. A gasp and hot breathy sigh. “I’m gonna fuck your bimbo brains out…” I promised.

“Brains… ngggg. Noooo… oh… Babe. No! You’re the best! I’m gonna… oh… fuck… bimbo… make… oh… yeah… you… of fuck yeah…. Mmmmm… a dumb bimbo.” Her hips rocked in motion with my fingers. Her hand worked in tandem with my cock. God she was the best. Is the best. The bestest.

So that’s how it happened. It’s open and shut… I went into this eyes wide open and shut.

And then there was my body. Musculature tweaked.

“Bigger cock. Big balls. Bigger is better. It’s a tradition, yeah?” She said eyes dancing. “I want a bigger cock.” Her grip tightened and I knew what she wanted. I wanted it too. I really want it.

“Definitely bigger!” I agreed. That I could get behind. Or in front of as the case now is.

Taller, more dominantly inclined. Kimi was very clear that she wanted my body to have mental conditioning to reinforce the dominance. “Hey,” I’d said jokingly as my finger found her g-spot. “What if i get too dominant. What if I take control. Decide to make it permanent.” I gently pressed her nerve cluster. She loved it.

“That won’t happen. Trust me. I know you. You won’t let the dominance go to your head. I won’t let it. I promise…” again that grin. And I had trusted her.

This was no mix up.

Kimi planned this.

The nanites arrived and we got ready to take them at the same time. We removed our clothes. I was fingering her and she was sucking my cock as we took them. And then it started. We started to change. But not how I expected. Kimi became me. And I became Kimi.

I got smaller. And smaller. And smaller. Like tiny. And my nipples grew huge and puffy. And then my ass and breasts swelled as my skin paled and… yeah my thoughts… changed. It felt kindof natural.

And the whole time Kimi sucked on my cock. Her mouth felt bigger and bigger. No. My manhood was shrinking. A teeny tiny clit. Smaller and smaller. As she’d promised. I realised now as my balls dwindled and pulled up inside, my sex kindof unfurling like a strange fleshy orchid. It felt so natural.

It feels natural. Cause we are all caught up.

Well not all caught up. There is Kimi. Now me. Bill. That was an **** nano mod. Kimi had grown taller. Muscles swelling as fat vanished. And her clit had become… more.

I watched in awed fascination as she, no, he grew in front of me. The nanites working their magic. His skin darkened slightly, the stubble on his face thickening. His cock grew, not just longer but thicker, the balls grew too. So much bigger than mine had ever been. I rubbed it still. It grew bigger as my hand grew small and dainty. The circumf… size of my grip decreasing as the girth of his cock grew. I had too keep stroking lovingly. How could I not! I mean golly. It looked so gosh darn yummy!! And he grew more hairy. Everywhere. The change was… um unreal!

Kimi's body grew broader, his muscles popping out, giving him a more defined and dominant look. And his eyes, oh his eyes, they changed to a piercing blue. I could see the power in them, the strength that I had never had. He was going to be so powerful, so in charge. It made me wet just looking at him. "Look at us. This is unexpected!" He laughed ironically, and his voice, it got a whole lot deeper, richer, more commanding. It thrilled me.

I looked down at my new body, my small hands, my delicate fingers wrapped about his cock. I was a bimbo alright, but not just any bimbo. My breasts were massive, jutting out like two overripe melons. They felt heavy, so sensitive. I pinched my nipple and moaned. "Oh, Kimi!" I whispered. "They're perfect!"

“No. Wait. What the fuck am I saying!?” The words left my mouth and I stared at the man, no, Bill, in front of me. This wasn't what I had planned. He licked my clit. This wasn't what we had agreed upon. Panic bubbled up in me, my heart racing as the realization dawned. This was wrong. All wrong. The betrayal was palpaouble… pulpit… like, thick in the air between us.

“Kimi. Don’t forget who is in charge,” Bill says firmly as he gripped my new clit and gently twisted. “You like that don’t you my little slut?”

I did. Oh yes I did indeed do.

Bill's eyes bore into me, his newfound dominance palpable… that’s the word. Palpable… yeah dominance in his gaze. He took a step closer, his new, towering frame casting a shadow over my now diminutive form. My breath hitched in my throat, my heart fluttering like a trapped bird. His hand reached out, and with a firm grip, he cupped my cheek, tilting my head back.