Jake demands more in exchange for his cum

"Well if you want my cum then you're gonna have to do something for me," Jake said. Carrie gave the tip of his cock a lick before looking up at him.

"Sucking your cock and showering you with praise isn't enough?" Carrie responded, a bit offended. Her left hand was still between her legs though, which told you she was enjoying herself even if she didn't want to make that obvious.

"No slut, it's not enough," Jake said. "If I give you this load of cum it's gonna grow you a fuck ton, just like you both want right? Well if you're both getting what you want, it's only fair I get what I want. And what I want is for Carrie to obey any command I give for the rest of the day. Deal?"

His offer hung in the air, with you looking on to see how Carrie would respond. The idea of your roommate being able to order your girlfriend to do anything sent a chill through your body, but before you could speak up to try and object Carrie was already answering.

"I'll obey three commands. That's it. Not gonna be your fucking **** all day," Carrie said. Jake glanced over at you before smirking down at your girlfriend.

"Deal. Now you can have your reward," Jake said, and Carrie hungrily resumed her work on his cock. She was voracious as she bobbed her head back and forth, as if she needed his cum to survive. Unfortunately Jake noticed how obviously into it Carrie had become and was all too happy to rub it in your face.

"Look at how excited this slut is for my cum. She's gonna finger herself silly and get off just on sucking my cock and thinking of how my cum is going to change her, isn't that right slut?" he said, and a muffled moan came out of your girlfriend's mouth. He was right, Carrie was already hitting her limit and you saw her building to her own orgasm just as Jake could feel himself giving in and finally about to cum. Carrie began to cum first, sliding her lips off of his cock as her body shook and her moans grew louder. Jake was stroking his cock to the sight as you both watched the love of your life cum. Her first orgasm brought on due entirely to another man that wasn't you. Carrie looked to be in heaven as she savored the feeling, the hand between her legs finally able to rest as she looked up at Jake.

Her orgasm began to fade away just in time for her to focus on Jake and his throbbing cock seconds before he came, wrapping her lips around it once again to ensure not a single drop goes to waste. Jake let out a deep groan and his body tensed up, cum exploding into your girlfriend's mouth. You could hear her struggling to swallow it all down as Jake unloaded what appeared to be a massive amount of jizz into your excited girlfriend's mouth. After what felt like an hour of Jake cumming, he was finally done as he staggered back, leaning against the kitchen table to maintain his balance. Carrie slid back and sat on her ass, letting out a sigh and licking her lips. Even sitting on the floor like this, it was clear that the effects were already starting and Carrie was beginning to grow. She stretched out a hand to the table, using it to help her stand as she slowly rose higher and higher. She staggered and stood up and already looked to be half a foot taller than your 6'3 roommate, and her growth from his orgasm was just beginning!

"Fuck that was so much cum," she said, the growth surging at her words, with Carrie shooting up another few inches in the span of just a few seconds. Her chest swelled and swelled, staying just as perky as always even as she passed cup size after cup size. Her muscles tensed up and rose, as if she was getting several weeks of exercise in the span of a minute. The growth continued, with Carrie raising closer and closer to the nine feet tall ceilings in the kitchen. She easily passed seven feet, though it was hard to guess just how big she was when the growth finally seemed to be slowing down. Best guess she looked to be eight feet tall now, with curves and muscles that anyone else on the planet could only dream of having.

"Fucking...damn..." Jake said. He stepped closer to her, reaching his hands out and running them up her thigh and tracing his fingers along her side. Carrie was busy checking out her newly grown body and didn't seem to notice. Either that, or she was perfectly fine with Jake getting to touch and explore her body.

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