Amy screamed in orgasm and grabbed Jack tighter, her body shaking against him as she came and came hard, dousing him in girl cum, getting both their clothes soaked. Jack felt his cock rise in response, he needed to cum. Amy was so happy and her body felt so good against him, her breast in his hand, her cunt soaking his other hand. Jack wrapped his arms around her as she shook from the orgasm, coming down from her high.
It was perfect.
Then it all went to shit.
Amy switched gears fast, well, switched back to what she was talking about before she kissed him. She wasn't happy about what was happening to her and she was blaming Jack. Too be fair she was probably right, the physical changes she was going through were too sudden to have any other cause, but Jack hadn't intended for this to happen. He didn't have time to formulate a response before she started to cry. His arms were still around her, so he pulled her tight, letting her cry on his shoulder. He was trying to comfort her, to sympathize with her, but being this close to her, with her still on his leg and cock, all soaked through with her cum, his cock was growing whether he wanted it to or not.
"I know I only had small tits but they were my tits and I was ok with them and yes I could feel horny and I used to masturbate but now ... I'm starting to feel horny all over again."
With her confession that she was getting horny again his hand slipped down her back to her ass. He didn't squeeze, he just left it there. Amy was slipping her hand inside her sweater and doing something with her titties. They got lucky this time, but they really needed to move out from in front of her house.
"Jeez Jack, I don't want to have tits like a porn star any more that you want to have a cock that hangs almost all the way to your knees and what sort of girl is going to want you to fuck her with a cock like that?"
Jack took offense to that. He liked his new dick. And there would be plenty of girls who wanted a chance to ride his cock. Theoretically. And he didn't do this to Amy on purpose. His horniness had been part of why he wasn't firing off retorts to some of these accusations, that and sympathy, but he was ready to respond to this one without much more thought.
"Hey-"
But she cut him off. "Oh my god, is my fanny also going to grow, grow big enough for your cock?"
"Uh?" That had shut Jack up. "I don't know. I didn't know this was going to happen to you. It shouldn't have done that. I mean... fuck."
Jack sighed. He lifted Amy up a bit so he could swing his leg out from under her and back to the pedals. He sat her next to him on the bench seat, which wasn't anything more then turning her gently to face forward. She could lean against him if she wanted or scoot away to the passenger side of the bench seat.
He popped the emergency brake, pushed the clutch and put the car into gear. They took off smoothly in his convertible, and Jack started heading toward school. Jack taking a moment to consider everything she was saying.
"I'm sorry Amy, I didn't mean to do this to you. You know you look great right? Like really great? Sorry, that probably doesn't help. And you cumming like that, fuck me, that was a huge turn on. I mean, just look at what you did to my cock."
He turned them down a side street a few blocks away and pulled to the side of the road, parking. Jack hit the button for the roof and it started to go up over their heads. He'd had to completely replace the gearage on that, but it was working great now.
"Sorry. Fuck. I'm having a hard time thinking straight, you've got me so turned on right now. Uh, the pill stimulates growth through epigenetics, having no impact on the genetic code itself. Fuck." Jack paused, rubbing his cock through his wet slacks. The roof clicked into place at about the same time.
"If it's impacting you the same way it impacted me then you can only grow to your genetic maximum potential." Jack undid his pants and pulled his cock out. It was somewhat slick with Amy's juices, but standing full and erect, the purple head completely unsheathed from his foreskin. Proud and ready. "Fuck I need to cum. Anyway, you might turn into a beauty queen Amy, and I liked you the way you were, by the way, but you shouldn't be a freak."
It occurred to him, as he sat there in his car with his dick out, that if Amy swallowing his cum did this to her then would it work on other girls? Give them bigger tits and make them horny too.
Jack dismissed the thought. He was about to start jerking off when he stopped himself. How horny was Amy right now? He turned and looked at her.
"Would you like to help me out?"
It was perfect.
Then it all went to shit.
Amy switched gears fast, well, switched back to what she was talking about before she kissed him. She wasn't happy about what was happening to her and she was blaming Jack. Too be fair she was probably right, the physical changes she was going through were too sudden to have any other cause, but Jack hadn't intended for this to happen. He didn't have time to formulate a response before she started to cry. His arms were still around her, so he pulled her tight, letting her cry on his shoulder. He was trying to comfort her, to sympathize with her, but being this close to her, with her still on his leg and cock, all soaked through with her cum, his cock was growing whether he wanted it to or not.
"I know I only had small tits but they were my tits and I was ok with them and yes I could feel horny and I used to masturbate but now ... I'm starting to feel horny all over again."
With her confession that she was getting horny again his hand slipped down her back to her ass. He didn't squeeze, he just left it there. Amy was slipping her hand inside her sweater and doing something with her titties. They got lucky this time, but they really needed to move out from in front of her house.
"Jeez Jack, I don't want to have tits like a porn star any more that you want to have a cock that hangs almost all the way to your knees and what sort of girl is going to want you to fuck her with a cock like that?"
Jack took offense to that. He liked his new dick. And there would be plenty of girls who wanted a chance to ride his cock. Theoretically. And he didn't do this to Amy on purpose. His horniness had been part of why he wasn't firing off retorts to some of these accusations, that and sympathy, but he was ready to respond to this one without much more thought.
"Hey-"
But she cut him off. "Oh my god, is my fanny also going to grow, grow big enough for your cock?"
"Uh?" That had shut Jack up. "I don't know. I didn't know this was going to happen to you. It shouldn't have done that. I mean... fuck."
Jack sighed. He lifted Amy up a bit so he could swing his leg out from under her and back to the pedals. He sat her next to him on the bench seat, which wasn't anything more then turning her gently to face forward. She could lean against him if she wanted or scoot away to the passenger side of the bench seat.
He popped the emergency brake, pushed the clutch and put the car into gear. They took off smoothly in his convertible, and Jack started heading toward school. Jack taking a moment to consider everything she was saying.
"I'm sorry Amy, I didn't mean to do this to you. You know you look great right? Like really great? Sorry, that probably doesn't help. And you cumming like that, fuck me, that was a huge turn on. I mean, just look at what you did to my cock."
He turned them down a side street a few blocks away and pulled to the side of the road, parking. Jack hit the button for the roof and it started to go up over their heads. He'd had to completely replace the gearage on that, but it was working great now.
"Sorry. Fuck. I'm having a hard time thinking straight, you've got me so turned on right now. Uh, the pill stimulates growth through epigenetics, having no impact on the genetic code itself. Fuck." Jack paused, rubbing his cock through his wet slacks. The roof clicked into place at about the same time.
"If it's impacting you the same way it impacted me then you can only grow to your genetic maximum potential." Jack undid his pants and pulled his cock out. It was somewhat slick with Amy's juices, but standing full and erect, the purple head completely unsheathed from his foreskin. Proud and ready. "Fuck I need to cum. Anyway, you might turn into a beauty queen Amy, and I liked you the way you were, by the way, but you shouldn't be a freak."
It occurred to him, as he sat there in his car with his dick out, that if Amy swallowing his cum did this to her then would it work on other girls? Give them bigger tits and make them horny too.
Jack dismissed the thought. He was about to start jerking off when he stopped himself. How horny was Amy right now? He turned and looked at her.
"Would you like to help me out?"