Authors Note: Thank you for the words of encouragement. Please note that for the most part, I'm making this up as I go, so there may be some slight continuity errors that I glazed over (heh) before submitting. That being said, I do have a few big plot changes lined up for later in the story . Once again, any feedback is greatly appreciated, and thank you for reading.
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Karla woke hours later, sore and dizzy from the events of yesterday, to the wondrous and unexpected feeling of morning wood from her now 9 inch cock. "Well then, so much for that being a dream. Then again, it's not all bad..." she said as she wrapped a hand around the head and began stroking, "ooh that's something I could get used to...ahhh!" Her other hand reflexively reached up to fondle a tit that was begging for attention, giving it a pinch and twist, barely holding back a squeal of delight. Fuck, it felt so good! She looked down to see her breasts were bigger, a lot bigger actually, and that her nipples were thicker and longer than they were, about the size of the end of her thumb. A tight pressure was building nicely in the tit being assaulted, when suddenly, a short stream of milk leaked out, eliciting a cry of pleasure from the stunned Karla. Her hips started bucking randomly due to the hand that was now stroking the full length of her thick cock, glistening with precum. The hand that was milking her still squirting tit moved down to feel the heavy set of balls now hanging underneath her shaft in front of her leaking pussy, not realizing yesterday just how big they were. They felt like golf balls wrapped in velvet, and so very, very full. Her breath turned ragged as her cock twitched once, twice, then erupted a gout of seed all over herself and the bed she was laying on.
It was then that she noticed that Kelly was standing in the door of her room, arms crossed under her breasts, a slight smirk of joy on her face. "Enjoying yourself, I see" she said as she made her way to the bed. "I'll bet you can't wait to get to your new home now, right?" Karla nodded eagerly, her fingers scooping up as much of her cum as they could so she could suck it down her mouth; She never thought it would taste as good as it did.
"Well, there's a couple of things I should go ahead and get through to you, sugar tits. Where you're going, isn't all sunshine and rainbows. There are rules to follow, and if you don't follow them, consequences are harsh." Kelly said as she walked over to Karla, taking one of her swollen boobs in her hand, kneading it. "In the farm, you will only be allowed to cum when allowed to, either by extractor, or if a Farmhand takes you. From now on, you are lower than a slave, designed to serve, do you understand?" Karla was writhing under the ministrations of her abductor, nodding and moaning in affirmation. "Any resistance, any form of rebellion will be dealt with immediately and effectively." Her hand reached down to stroke Karla's hardening cock. "As of now, your life as a cowgirl begins. Training shall begin now." And with that, Karla was left in a state of complete sexual arousal like she had never been before. Stunned by the sudden absence of Kelly's hand on her cock, she reached for it herself, only to be stopped by Kelly, a stern look on her face.
"B-b-b-but-" Karla whimpered, desperate for another cum.
"No buts now, I told you your training starts now. There will be no masturbating from now on." Kelly picked up a leather tube then, placing it around Karla's completely hard cock, snapping a leash to it. "Now, follow me, cowgirl."
Karla was led by the cock out of her room and down the hall to what looked like another medical bay. She was led to another examination bench, this one set up for reclining. She sat back on it, expecting anything, but was surprised when Kelly detached the sleeve around her cock, and began stroking it once again, bring it to full hardness. Karla was moaning softly as her hips started to twitch and buck, when out of nowhere, Kelly grabbed a small metallic pipe off the table and slammed it home in Karla's japs eye. Karla squealed in surprise, curling forward only to be stopped by the padded straps reaching across her midsection and arms, pinning her to the bench. An IV bag she hadn't noticed was brought over and connected to the end of the pipe, where it began forcing its way into her. Kelly was typing away on a keyboard.
"Doesn't it feel good?" Kelly said as she reached out to the shaking girl, smoothing her hair back and cupping her cheek; "Centuries ago, we came to your planet for the first time, and brought back a mountain of data, along with a few specimens of local wildlife for experimentation. A great deal was learned, and through work on DNA manipulation, we extracted the genomes that control breeding and fertility from several of them, which is the cocktail- heh, cocktail- that's being pumped in to you now. It has the effect of making you almost permanently aroused. Also, your milk and sperm output will increase to superhuman levels, which is required to meet the quotas of full production."
Karla was moaning nonstop now, breathing in short gasps as the mix was being absorbed into her bloodstream. "Please, let me cum! Oh god, it feels so good, but I'm so hard, I have to cum! And my tits feel so full, they feel like they're gonna burst! Aaahhhh!!!" Her back was arching off the table now, sweat beading all over her amazing body. "Don't worry pet, only one more hour, then you can have your relief. Speaking of relief," Kelly looked down to her now fully engorged prick, "I could use some myself. Here, have a treat." And grabbed her cock, pushing it into Karla's open mouth, who began sucking eagerly. "Ooohh, that's good pet, keep going, just like that!" Kelly's hands reached up and began kneading and twisting her nipples. Minutes later, she cried out, took her cock out of Karla's amazing mouth, and stroked herself off, shooting hot cum all over Karla's chest and face, who did everything she could to swallow as much of it as possible.
Kelly took a few deep breaths before saying "Fuck you're good at that! I'll make sure to repay you for it. How about I fuck that tight pussy of yours?" Karla's eyes shot open at the thought, "Nooo, not that, that's too much!!! Please, let me cum! I feel like I'm about to explode!" Her body, cum sliding down her body in sticky gobs, was shaking constantly, her balls completely swollen with pent up seed. "Well," Kelly said, glancing at the computer, "You've got 5 more minutes left, so I won't fuck you, but," She reached down under the table, coming back up with a butt plug and bottle of lube "You get to enjoy this little number." She squeezed lube onto the plug, smeared some around Karla's virgin asshole, before pressing it slowly in, stretching her rosebud. Karla was bucking her hips as much as the straps would let her, eyes wide, mouth open in a silent scream that didn't stay silent for very long.