She opened her eyes and was staring at his cock in awe at both its length and girth, almost double the size of her boyfriend’s, which seldom satisfied her. “Oh my God, Brandon!”
“Oh my God, what?” he asked, knowing that every girl who had seen his cock up close had been shocked by its size… especially on such a scrawny nerd.
“Put that away,” she said, although not turning away from it.
“Do you like sucking cock?” he repeated.
“Yes, I love it,” she answered honestly, although she had never had anything this big in her mouth.
“Do you want to suck mine?” I asked.
“God, yes,” she answered and then covered her mouth, frustrated that the words out of her mouth weren’t the same as what she was thinking. “Why are the words I plan to say different from what are coming out if my mouth?”
“The drug takes away your bullshit filter,” he shrugged. “You always tell the truth.”
“Shit,” she said, before adding, “that’s not good.”
“Do you swallow?” he asked, continuing his inquisition of his sister’s slut factor.
“Sometimes, but I’d rather feel it inside me,” she admitted, then cursed, “Damn you, Brandon.”
“How about facials?” he continued, getting more and more amused as he watched her baffled by her answers and unable to not keep looking at his cock.
“Yuck,” she answered.
“How about come on those big titties of yours?”
“Mike likes to,” she admitted.
He stroked his cock and asked, “Baby sister, what are you thinking about right now?”
“Having that big snake inside me,” she answered, before looking up at him and adding, “Fuck, I really can’t lie.”
“Nope, you always say what you really want,” he explained.
“Forever?” she asked, worried about the long-term impact.
“That is still up for calculation,” he answered, “although it may be.”
“So I can never lie to anyone?” she asked, petrified.
“Yep,” he nodded, “in essence you will have to always be nice to people.”
“Ugggh,” she sighed.
“You’re my sister slave now,” he replied.
“You really want to fuck your sister?” She asked, her face giving a look of disdain.
“Don’t you want me to fuck you?” he asked.
“Yes, no, the question is confusing,” she babbled, clearly overwhelmed.
“Sorry, for the double negative,” he laughed. “I’ll simplify it. Do you want to fuck your big brother?”
“God, yes,” she admitted, her cunt wanting it, even though her brain thought it was disgusting.
“Am I bigger than your other boyfriends?” he asked.
“Way bigger,” she nodded.
“Go ahead and stroke it, I know you want to,” he offered.
“It’s so big,” she said, mesmerized by its sheer length and girth. “And hard,” she added, as she grabbed it.
“All for you, my sister slut,” he added.
His cock in front of her was mesmerizing, and she took it in her mouth. She swirled her tongue around the thick mushroom top.
He watched awestruck by how well the drug had worked to weaken her inhibitions and marvelling at how she was now sucking on his cock without being told. Her mouth was amazing, creating extra saliva to produce an amazing sensation unlike the few blow jobs he had had.
Backing off his cock, allowing a loud ‘pop’ sound to occur she asked, “Does big brother like?”
“Very much so,” he nodded, loving she was doing this of her own accord, before adding, “Do you?”
“It’s so big,” she repeated, taking it back in her mouth.
He again smiled, knowing that she was making this decision of her own free will.
After another minute, he asked, “Does my slut sister want to get fucked?”
Her eyes went big as she took her brother’s cock out of her mouth. “That would be incest,” she pointed out, her hand still on his cock.
He laughed, “You just had my cock in your mouth.”
“Oral isn’t really sex,” she countered, having sucked lots of boys, but having only had two in her pussy.
“That’s ludicrous,” he laughed, before asking, “So is anal sex, sex?”
“That’s gross,” she protested, having refused that every time it was brought up.
He smiled.
She saw his smile and begged, realizing the power he had, “Please don’t make me want to have anal sex.”
He shrugged, “As long as you’re a good sister slave, I won’t add that to your new conditioning.”
Her cunt was wet and begging for attention, and she figured he wasn’t bluffing about the ass threat, so she got on all fours, offering her pussy and said, “Well, what are you waiting for, big brother, make your fantasies a reality.”
“Are you wanting it in the ass?” he teased, her perfect ass now staring him in the face.
“My pussy big brother, fill your sister’s pussy with that big cock of yours,” she offered, her tone sultry.
“I don’t know,” he teased, even as he got on the bed behind her, amused that she was offering her cunt without being instructed to.
“Just fuck your sister slut,” she said, praying he would take her up on her offer, really wanting to feel what eight inches felt like inside her and not remotely wanting to be sodomized.
“If you insist,” he smiled, as he slid his cock in her.
“Fuuuuuck,” she screamed, the length and width filling her unlike any other ever had.
“You like that?” he asked, already knowing the answer, as he rested deep inside her warmth.
“God, yes,” she admitted, wanting more. Without even realizing she was doing it, she began bouncing back on his cock.
“Shit, you really are an eager slut,” he groaned, watching his bitch sister become his slut sister.
“You’re soooo big,” she moaned, bouncing on his cock, finally understanding just how good sex could be. She sucked cock to make her man happy; she got fucked because it felt all right and it made her man happy; but this was making her happy and bringing pleasure she hadn’t known existed.
“Who would you rather fuck? Your boyfriend or your brother?” he asked, loving the quick transition from bitch to slut.
“You, big brotherrrrrr,” she answered, her orgasm building.
“And you will be my personal cum bucket from now on?” he asked, not as a demand.
“Yessssss,” she moaned, her breathing already erratic.
“And you will treat me with respect from now on, and talk me up in front of your slut friends?” he continued.
“Yessss, all my friends would love a piece of this big cock,” she admitted, although she wasn’t sure how to bring up such a topic.
“I’d love to bang Becky,” he said. Becky was Carrie’s best friend and fellow cheerleader.
“Okayyyy,” she said, her orgasm so close and yet not exploding.
He kept watching his sister bounce on his cock, loving the power he had over her, partly because of the drug and partly because of his big cock. He was also amused because he knew she couldn’t come until he said she could.
Realizing she couldn’t come without permission, she begged, “Please let me commmmme.”
“But I thought incest was wrong,” he teased, quoting his sister’s earlier words.
“Just let me commmmme,” she begged, frustrated at not being able to.
“Come slut,” he ordered, and watched as she instantly collapsed forward.
“Yessssssss, fuuuuuuuuck,” she screamed, as the invisible dam broke and the most intense orgasm of her young sex life erupted through her.
He leaned forward and resumed fucking her, his own orgasm building, as she continued coming.
When he knew he wouldn’t last much longer, he pulled out, stood up and ordered, “Slut, on your knees.”
She quickly got off the bed and dropped to her knees as he shoved his cock in her mouth.
“From now on, you crave cum,” he declared.
Instantly, she indeed craved his cum. She bobbed hungrily on his big cock.
“Tell me what you want, sister slave?”
She took his cock out of her mouth, even as she pumped it, “I want your cum in my mouth.”
“Beg for it,” he ordered, as he pumped his cock.
“Oh please, big brother,” she begged, humiliation hitting her even as her mouth watered for her brother’s cum, “Fill your sister’s mouth with your cum.”
“Open wide,” he ordered, before seconds later shooting his cum in her mouth, although the first rope hit her on the nose.
As soon as the cum hit her mouth, she felt a sense of satisfaction, as her sudden hunger was fulfilled, and she leaned forward and took his cock back in her mouth to retrieve every last drop of his addictive seed.
“Good slut,” he groaned, as she slowly milked his cock.
Pulling his cock out, he said, “You will never tell anyone about this.”
“Who would I tell?” she questioned, part of her disgusted at how much she enjoyed being made into a slut by her brother, yet another part of her undeniably wanting to do it again.
“Also, you will bring me Becky soon,” he added.
Her orgasm done, and now thinking straight, she said worriedly, “But she isn’t going to be interested in you.”
“I can make her do anything I wish,” he shrugged.
“Please don’t use that on her,” she pleaded, not wanting to draw her best friend into the sexual submission of her nerd brother.
“Look, slut, I make the decisions here, you just obey,” he said firmly.
“But….”
“Go give head to your door knob,” he ordered, wanting to make a point.
“Fuck, Brandon,” she sighed, as she walked to her door, “I was just trying to….” She began licking the door knob.
He explained, “Be an obedient slut and I won’t humiliate you. Disobey and I will have you ass-fucking every loser in your school, is that clear?”
“Yes!” she agreed, tears beginning to stream down her face at the true breadth of power he had over her.
“Good,” he nodded, “you may stop pleasuring your door knob.”
She was thankful for that.
He walked to the door and asked, his cock already hard again, “Craving more cum?”
His cock pointing directly at her, she nodded, even as more tears streamed down her face, “Yes.”
“I guess I can give you one more load before school,” he said.
Carrie leaned forward and took his big juicy cock back in her mouth wondering how she would ever get out of this predicament.
Brandon meanwhile decided he would test it on her friend next, and maybe a few others, to make sure there were no bugs before going after Sarah and the entire firm.
Carrie bobbed for over twenty minutes, until her jaw was aching, before Brandon finally deposited a full load of his cum down her throat.
Pulling out again, he said, “I expect you here with Becky after school, is that clear?”
“Yes,” she reluctantly agreed, even as she wracked her brain for a way out of this.
“And if you don’t bring her, I’ll take your ass,” he threatened, something he planned to do anyways one of these days.
“Okay, okay, I’ll bring her,” she said, still on her knees.
“Good, sister slut,” he said, patting her on the head.
She wanted to snap at him, but just sat there frustrated, angry and strangely horny.
He left her alone, already formulating a plan to make a video of two cheerleaders dyking out.
The rejection of the formula by that bitch Sarah just may have been be the best thing that ever happened to him.