Cassie's Brother

Note : This story is completely fictional!

Cassie's love for Hector did not change during that year, but she was not frustrated, so everything was nice. When the time came for her to sleep with her brother, her parents pulled her aside for a minute and told her something shocking and secret. "Cassie, Hector is actually your half-brother, instead of your full one. His real father was a man who had a quickie with your mom at an office party, but refused to admit paternity and died in a car wreck. His name was Larry. I basically adopted the baby, and so I'm still the de facto father of Hector.", Dan informed her. "Just don't tell him, OK, sweetie?", Vicki said, "It would crush your brother to hear the truth."

"Alright, mom and dad, I won't, but on another topic, how do I seduce him?", Cassie asked. "Just ask for his help with your TV, since he is so good at that.", Vicki suggested. "That must have been Larry's genes, because Hector's the only guy in the family that good at repairing electronics."

So, Hector, reluctantly, went up to Cassie's bedroom, quite annoyed at being asked for such help on his birthday. "So, what's the problem, Sis? What do you need me to fix?", Hector asked her. "Actually, nothing, Heck, because it was really just an excuse to get you to my room. I want you to fuck me, bro, so hard that I squeal!" "Sis, that's incest! I can't do that!", Hector responded.

"Mom and dad say that incest is as natural as promiscuity, or homosexuality. Come on, bro, and shag your sister- I'm in love with you, and I will never try to keep you away from other girls!", Cassie pleaded. "Well, you do owe me for having distracted me from my stereo system, so I might as well collect this way! You're in love with me- when did that happen?", Hector answered. "I've loved you for a while now, so please just make love to me! I want you, Heck!", Cassie begged him. He looked at her pathetically loving face, and he knew that it was no good to turn her down. She was his sister, she loved him, and she wanted him more than any other girl that he knew wanted him.

"OK, Sis, I will have sex with you, but you'd better do what I say. Is that understood, Sis?", Hector said. "Yes, master, I will obey you to the tiniest detail- I am your slave tonight!", Cassie replied enthusiastically. She did not want to give him any excuse to reject her. "Strip down to your panties, removing even your bra!", Hector commanded. She quickly followed his order, getting herself topless in less than 5 minutes. "Now, pull down my sweat pants and suck my cock!", Hector instructed her.

She gladly did as he directed, getting his dick into her mouth with surprising speed. Since he had never had a blowjob before, her efforts succeeded with startling ease. The sensation of her tongue on his cock was just too much to keep under control. He exploded into her mouth, filling her with his cum without asking her consent. "Hector, I did not offer to swallow it- you just shot into my throat!", Cassie at first reprimanded him.

"Silence, slave, for your mouth is my property as well as the rest of you- you said 'to the tiniest detail', so I have the right to cum in your mouth if it pleases me!", Hector retorted. That was an abrupt reminder of who was boss, since she had apparently forgotten for a second. Cassie quickly shut up and went back to sucking him, since he had not instructed her to do anything else yet.

When he had tired of fellatio, he stripped further, then ordered her to take off her panties. "Now, come over here,", he said, leading her to her own bed and sitting down on it. "Bend over my lap, slave, because you had the presumption to scold your master, so you must be punished harshly.", he told her. She obeyed, and then felt his hands falling swiftly and brutally on her ass. He was spanking her bottom, and she knew that she would never forget this experience, as it was the most wonderful thing she had ever felt in her life. He kept slapping her hips, with one severe stroke after another, until her ass was crimson, and she would not able to sit up in her college class for days.

When he had amused himself enough by smarting her butt-cheeks, he threw her onto the bed, grabbed her buns, spread them, and then shoved his dick into her rectum with all the power he had at his disposal. The pain lasted for several minutes, and she thought that she would die for a second or two, but she was also delighting in the feeling of his hard cock up her ass. She squirmed, then squealed, and then she shrieked, before she finally came from the invasion of her posterior. 

"This is just too much fun to limit to tonight, don't you think, Sis? How about making this situation permanent?", Hector said to her. "Yes, Heck, I want to belong to my brother- I want to be your slave, Bro, and I want to be spanked and butt-fucked every night! I am your slut and your bitch!", Cassie exclaimed. Her eyes showed him that she was totally enthralled by him, and truly wished to be his property for life.

When he came this time, he got up in her face and stuck his dick into her mouth, telling her to suck his cock straight from her own ass. She was excited to be doing something so "dirty", and the fact that she was doing as part of her own submission and humiliation made it even better. After she had gotten it hard enough, he pulled it out of her mouth, went behind her, and entered her pussy doggie-style, with no consideration for her comfort- he just rammed her cunt as hard as possible. The pain once again was enough to get both of them off, so she was soon moving her hips back against his loins, making it impossible to keep his sperm inside any longer.

As he came in his sister for the 3rd and last time that night, her cries of pain were evidently combined with moans of orgasm, so he did one last thing to get her off again- he bit her neck repeatedly, just knowing that it would get her wet to be treated like meat by her brother. She did not bleed, but it did hurt a lot, which only aroused her more. Cassie no longer doubted for a moment, and neither did Hector- she was a masochist, and he was a sadist. She belonged to him, and he decided to make her quit college and follow him as his slave wherever he went outside of school until he joined the military. Even then, he expected her to serve him on leave.

"How does that sound, Sis?," Hector demanded after he informed her of her future. "The best thing I've ever heard from a man, Heck; I want so much to devote my body to your pleasure.", she told him. "Call me 'Master' from now on, Sis, no matter where we are!", Hector ordered her, and she only responded, "If that pleases your penis, Master, I'll do it!" Hector grinned as he looked at his new slave- his sister! The rest of high school should be a breeze, since at least one girl will always fuck me, he thought, as he fell asleep next to her.