Zach needs to test his new body

"I am gorgeous... I am a God"

Zach looked at his reflection in the mirror. Perfect abs, perfect muscles, a perfect face and a massive dick. He knew no human creature could be able to resist his lustful body, and he was going to fucking enjoy it. He begun thinking if all the people in his life: his ex girlfriend Alex, Becky, heck, even his sister. They would all worship him as a living god, above good and evil, exempt from morality and the laws of reason. He begin to touch his dick, opening the zip which kept his trousers only barely closed. It was thick and long, not simply a piece of his body, but a wild beast full of raw energy. And that energy had to be put at use. Zach was anxious of testing his new body, his hard rock muscles and especially his dick. He immediately begun thinking of Becky, of her gorgeous ass, which he couldn't wait to explore more. He instinctively begun to rub his cock, gently touching his big gland while feeling it grow and expand. He begun to moan in pleasure in an almost feminine manner, trying to imitate what in his mind were Becky's own pleasure screams. His parents weren't at home, they were passing the night at the opera, or in another place for the rich upper bourgeoisie. He begun to rub his dick quicker and quicker, maniacally, moaning louder and louder. He didn't remember masturbating with so much haste and pleasure ever in his whole life, and fuck it was amazing. He felt his veins stretch, his balls preparing to the ejaculation but then... Someone knocked on his door.

-Zack? What the fuck are you doing?-

His heartbeat accelerated, as he recognised the voice: it was his stepsister Anna. He had completely forgot that she was at home, captured by the ecstasy of the moment. He quickly put his dick back in his trousers, and tried to hide his massive erection. The book, which up to that point had been levitating above the floor fell down, like if it had been emptied of his power.

-Nothing-

Anne entered the room. She was his father's daughter, coming from a marriage with a discount actress (Zack never understood what she exactly did, but he didn't like to think too much about his father's former relationships). She had been living with their father since his early divorce, when she was only three, and had been close to him even when he married Zack's mother and had his second child, Zack. Anna was quite different from Zack, and he had the impression she didn't approve of his more voluptuous lifestyle, but frankly he didn't care much about her opinion... His father, on the other hand...

-Oh God, what the fuck is that?-

She pointed at the book, which lied in a small pond of black fluid. He supposed that liquid came out from the portal when the tentacle was summoned. He blushed. He feared she could tell to their father about that little "accident", and the sole thought of being punished by him scared him. Anna couldn't understand, she had always been the main target of their father's love ant attentions. Suddenly, Zack felt anger mounting inside him.

-Nothing I said. -

Anna stared at him crossing her arm on her chest. Her delicious, soft chest to be precise. She only wore a thin tank top that exalted her breasts, and Zack could almost see her nipples erected behind the fabric. She had inherited most of her mother's beauty, and for the first time, Zack looked at her... in a different way.

-And what the hell happened to you? How the fuck are you dressed?-

"Do it. I know you want it, Zack"

Zack knew his new body had different needs than his old one. He had never looked at Anna in a sexual way, but he had to admit she was kind of pretty. She had long cascading red hair and a bunch of trickles, giving her the stereotypical ginger look, and she used to dress quite hippie, with long large trousers and wool sweaters. She was popular at school, but not as cocky or arrogant as him. He had always seen her as his father's favourite child, the good lucky girl, while he was the broken egg in his casket. She even had a boyfriend, he had seen him a couple of times at home, a dorky college student, some kind of wanna-be scientist of doctor. He despised him, they always looked at him as an inferior, ignorant guy. And now, now was the time to show Anna than she was no different from him, no less animal or impulsive.

-Zack? Zack!-

He smiled, wickedly. He started to walk towards Anna, making sure she could admire his new perfect body in the dim light irradiating from his now red eyes.

-Is this some kind of joke? You're scaring me now Zack.-

He started to lough, maniacally. He would fuck her, yes. And she would enjoy it, he knew. No human being could resist that body.

-Come closer sister, I have to tell you something.-

Anna obeyed, almost hypnotized. She could barely recognize the young man in front of her, transformed in some kind of sex god. Even in the darkness, she could see his massive erection through his thought leather trousers, pushing against them. She had always found Zack a hell of a boy, but she was never attracted by him, but not simply because they were related. Her distrust of him had nothing to do with appearance or sexuality, he simply had always been mean to her, arrogant, almost ferocious.

-What do you want to tell me?-

Zack didn't answer. He firmly took one of her hands and calmly begun to push it towards him. It was cold, but he could feel her heartbeat accelerating, like a little bird fallen from its nest. He loved that fear, it pleased him and made him conscious of his new powers. He could feel the effect his enhanced body had on her, of the sexual desire coming from her regular and soft breath. Zack could even saw her small nipples hardening behind the light fabric of his stepsister's top.

-Zack... What are you doing? This is wrong...-

He didn't listen to her, it was not the time for morality. Her hand finally arrived at the center of his trouser, and he shaped her fingers around his cock, still hidden behind the leather.

-Zack!-

-Can you feel it?-

He surely could. His beast was growing under the gentle, trembling touch of his stepsister, erecting to fill her hands. She hated to admit it, but in a twisted perversed sense Anna was deeply aroused by her stepbrother. She had never encountered a dick so massive in her life.

-I...-

-It is gigantic, Anna.-

He grabbed his head with his free hand, while continuing to guide her fingers to the way to his dick. He opened the zip, and begun to let her nails gently touch his gland, feel its heat spreading. He then brought her head closer to his chest, making her feel his perfect muscles in direct contact with her skin. Anna's fingers begun softly caressing his cock, in an instinctive act, which was in no way under the girl's control.

-Are you liking it?-

-I...? Yes, but we shouldn't...-

Zack silenced her with a deep kiss. He now was sure she liked it, and that was all he needed. The final proof that his new body would show to people their true self, woul unleash their feral instincts. Anna was no longer his stepsister now, she was a piece of meat and blood ready to pleasure him.

-Make me cum-

He didn't need to ask it. Anna's hand was already intensely rubbing his dick, her deep breath hitting Zack's neck. He wasn't satisfied.

-More, slut!-

His hands, now free, runt inside her tank top, caressing her smooth skin. Anna couldn't believe what was happening, it looked like a dream... But it surely didn't feel like one. Her body was rocked by wave of pleasure, and every time her conscience ordered her to speak against that sinful act her voice was silenced by one of his stepbrother's passionate kisses. He could feel his long and moisty tongue stretch our in her throat, almost unnaturally long, and she couldn't stop thinking about having his dick inside her mouth, liking it for good. In a way, she wanted to flee, to go away and call her father. But she was enjoying Zack too much to really do so. She was weak, and she knew it.

-I'm not even close to cumming, slut...-

He tore apart her tank top, destroying the cloth and exposing her small perky nipples to the cold air. The only light was a hellish glow coming from Zach's eyes, which were lustfully staring at Anna's pale and slender body. At that point, Anna did something we she couldn't believe she would have ever done: she opened Zack's trousers, beginning to remove them.

"What will John think about this?"

-Your stupid boyfriend will never know about us, Anna. And if he does.... I'll offer him your ass while I take the rest.-

Anna was shocked. Her brother had just read into her mind! She immediately froze, her hands still holding the black leather trousers.

-I am more than human, sister. I am a living God, and you'll worship me as such. Take my dark communion now!-

It was sudden, like a lightningbolt in a calm sunny day. Anna had not even the time to understand what was happening. She found her head pushed by an immense **** on top of Zack's dick. All she could do was opening her mouth and beginning to suck.

It was even better than she had imagined: the cock felt alive, warm, a beast on top of the beast Zack has become. She could feel its spasms, moment before the ejaculation.

-Drink it all. Drink it!-